Electromyography Segmented Assessment for Lower Limb Muscle Transition to Fatigue During Isometric Contraction
|
|
- Hilary Payne
- 6 years ago
- Views:
Transcription
1 Electromyography Segmented Assessment for Lower Limb Muscle Transition to Fatigue During Isometric Contraction By Jorge Garza-Ulloa, Pablo Rangel, Olatunde Adeoye Department of Electrical and Computer Engineering, University of Texas at El Paso, Laboratory for Human Motion Analysis and Neurorehabilitation, El Paso, USA (#) 1
2 Electromyography Segmented Assessment for Lower Limb Muscle Outline 1. Abstract 2. Introduction and Background 3. Concept: Transition-to-fatigue 4. Methodolgy / Experimentation 6. Results 7. Conclusions ( 2
3 Electromyography Segmented Assessment for Lower Limb Muscle Abstract ( Olatunde Adeoye ) Surface Electromyography (semg) activity of the lower extremities Analyze muscle transition to fatigue on four leg muscles. Measured lower extremity muscles : vastus lateralis (VL) gastrocnemius lateralis (GL) Tibialis anterior (TA) Soleus (S) Data recorded when subjects performed an isometric exercise : one minute test twice for energize muscles two and three minutes for stimuli transition-to-fatigue Objective: determine and analyze the muscle transition to fatigue activity generated by muscle tension for a specified period of time. semg data of the subjects segmented for fast analysis and easy tracking of the changes observed on raw data without any filtering. 3
4 Electromyography Segmented Assessment for Lower Limb Muscle Abstract continue... Amplitude of the high frequency is correlated to force level Amplitude of the low frequency band is correlated to the muscle fatigue. Two methods were used: Amplitude row data related with raw semg data, MNF during the segmentation Analyzing the muscles with more activities on all test using segmentation. Results show the effects of transition-to-fatigue phenomena contributed to: Physiological fatigue Muscle fatigue. 4
5 Electromyography Segmented Assessment for Lower Limb Muscle Introduction and Background Localized muscle fatigue occurs: After a prolonged relatively muscle activity When muscle or groups of muscles are unable to exert any more force or power. (Physiological fatigue). Three types of localized muscles are: Non- fatigue Transition-to-fatigue Fatigue semg signal can be analyzed to detect Transition-to-Fatigue. Development in muscle fatigue correlates to: Changes in amplitude and Median Mean Frequency ( MNF ) The signal is analyzed in frequency-domain 5
6 Electromyography Segmented Assessment for Lower Limb Muscle Concept: Transition to fatigue Simple muscle twitch Mechanical response of a single muscle fiber to a single action potential Latent period (10 ms): Muscle tension is beginning. Contraction period (40 ms): Muscle fibers shorten. Relaxation period (50 ms): Ca 2+ renters the sarcoplasmic reticulum Total duration -100 ms (varies) Doesn t have refractory period 6
7 Electromyograhic Segmented Assessment for Lower Limb Muscle Concept: Transition-to-fatigue Summation Adding together of individual twitch contractions to increase the intensity of overall muscle contraction 1) Multiple fiber summation 2) Frequency summation 7
8 Electromyograhic Segmented Assessment for Lower Limb Muscle Concept: Transition-to-fatigue Multiple fiber summation More the fibers (motor units) taking part in contraction more will be the force of contraction For weak contraction, smaller and fewer motor units are stimulated For stronger contractions more & more motor units are stimulated (recruitment) Frequency summation, tetanus or tetanization Sustained contraction due to repeated stimuli of high frequency 8
9 Electromyograhic Segmented Assessment for Lower Limb Muscle Concept: Transition-to-fatigue Frequency summation Incomplete tetanization Muscle fiber is stimulated at such a frequency that every next stimulus falls during previous relaxation period Subsequent contraction is superimposed on the previous relaxation Force of subsequent contractions rises due to beneficial effect of Ca++ Muscle fiber partially relaxes between stimuli Complete tetanization Muscle fiber is stimulated at such a frequency that every next stimulus falls during previous contraction period Subsequent contractions merge with the previous ones Smooth contraction of greater force is achieved No relaxation phase Leads to fatigue 9
10 Electromyograhic Segmented Assessment for Lower Limb Muscle Concept: Transition-to-fatigue Muscle fatigue: Decrease in muscular activity due to repeated stimuli Causes: a. In muscle Lack of nutrients and glycogen Lack of oxygen Accumulation of lactic acid Conduction failure along T tubules -blockage of Ca 2+ release for sarcoplasmic cistern b. In Neuromuscular junction Depletion of Acetyl Choline c. In Central Neural System CNS cannot send excitatory signals to the contracting muscles Generally psychological Fatigue reverses by taking rest 10
11 Electromyograhic Segmented Assessment for Lower Limb Muscle Methodolgy / Experimentation Main objective : Get the subjects into a state of incomplete tetanus to analyze the trends of how the Transition-to-Fatigue happens. Dangerous to have them reach a state of complete tetanus so the exercises were design to keep them from any harm. 11
12 Electromyograhic Segmented Assessment for Lower Limb Muscle Methodolgy / Experimentation Experimental Procedure At detail the procedure was explained to every participant. An IRB (Institutional Review Board) agreement was signed by each subject before proceeding with the experimentation. Preliminary anthropometric, demographic, and clinical data was taken from each subject. The Pocket EMG by BTS Bioengineering was properly calibrated and placed over the subjects. Software and System Set Up The Pocket EMG by BTS Bioengineering semg System software was configure and initialized following the User s Guide directions and the previous training provided to the laboratory staff. 12
13 Electromyograhic Segmented Assessment for Lower Limb Muscle Methodolgy / Experimentation Sensor Placement The Pocket EMG by BTS Bioengineering electrodes were allocated over the following muscles: Vastus Lateralis (VL) by knee force, Gastrocnemius Lateralis (LG) as flexion of knee Soleus (Sol) as an antagonist plantarflexion Tibialis Anterior (TA) as as Dorsiflexion Before placing the sensor areas where cleaned and shaved (if needed) to obtained a better and direct contact to the muscle. 13
14 Electromyograhic Segmented Assessment of Lower Limb Muscle Methodolgy / Experimentation Trials Complete procedure took about thirty minutes. Subjects were able to dictate when they were ready to proceed They were given a rest period of at least 5 minutes between each trial. The experimental procedure consisted of one isometric exercise procedure been repeated four times in three different time ranges: First (1MA), a semg reading of the legs at the assigned position was acquired for one minute. Next, the subject was asked to do the same isometric exercise for one more minute (1MB), then two minutes (2M) and finally three minutes (3M). 14
15 Electromyography Segmented Assessment for Lower Limb Muscle Procedure Our goal analyze the semg with all possible detail of muscle change, huge files! Raw Data from Sample Frequency of 2000 Hz Aprox. 120,000 samples per minute No filter of any kind The Raw data was segmented each 5,000 samples, this means each segment of 2.5 sec. to register any muscle variation. Find Spectrum frequency using fast Fourier transform (FFT) Calculate Mean Frequency (MNF) 15
16 Electromyography Segmented Assessment for Lower Limb Muscle Procedure: Anthropometric Data Tests: HEIGTH WEIGT SUBJECT AGE SEX (cm) H ( Kg) BMI 1MA 1MB 2M 3M SH1 22 MALE Y Y i X SH2 32 MALE Y Y Y i SH3 24 MALE Y Y Y Y SH4 23 FEMALE Y Y Y i SH5 26 FEMALE Y Y Y Y SH6 19 FEMALE Y Y Y Y SH7 21 MALE Y Y Y Y SH8 27 MALE Y Y Y Y SH9 29 MALE Y Y Y i SH10 21 MALE Y Y i x SH11 42 MALE Y Y i x SH12 34 MALE Y Y i x 12 subjects with IRB (Institutional Review Board) agreement signed 16
17 Electromyography Segmented Assessment for Lower Limb Muscle Two analysis methods used 1) Amplitude segmented semg row data related with Mean Median Frequency (MNF) 2) MNF changes on the muscles with more activities (all segmented tests) 17
18 Electromyography Segmented Assessment for Lower Limb Muscle Method 1 Amplitude segmented row data related with MNF Raw Data obtained from the sensor as: sum of many Motor Unit Action Potential (MUAP) using: where x(n) is modeled EMG signal, e(n) is point processed represents the firing impulse, h(r) represents the MUAP, w(n) zero mean addictive white Gaussian noise and N is the number of motor unit firings. To see all portion of raw data the MNF was calculated from fast Fourier transform (FFT) that computes the discrete Fourier transform (DFT) as: Where x 0,, x N 1 are complex number, N outputs, k = 0,, N 1 MNF as:. distribution of frequencies from fmin to fmax, each with amplitude A(f) and a frequency f 18
19 Electromyography Segmented Assessment for Lower Limb Muscle Method 1: Amplitude segmented semg row data related with MNF semg Signal Frequency Time Rectified/Filtered More information is obtained from the semg signal working on the Spectrum Frequencies! 19
20 Electromyography Segmented Assessment for Lower Limb Muscle Method 1: Amplitude segmented semg row data related with Mean Frequency (MF) Conclusions: Amplitude of frequencies are correlated to force level and the amplitude of low frequency is correlated to muscle fatigue Shift to lower freq. 20
21 Electromyography Segmented Assessment for Lower Limb Muscle Method 2: (Jorge Garza-Ulloa) Charting MF changes on the muscles with more activities on all segmented tests Fact: The muscle that show highest activity on this isometric tests were Vastus Lateralis (VL) and Gastrocnemius(G) 21
22 22
23 23
24 Freq. (Hz) Freq. (Hz) Freq. (Hz) Freq. (Hz) Freq. (Hz) Freq. (Hz) SH01- Vastus Lateralis Left Segments Tests 1MA 1MB 2M 3M SH02 Y Y Y 95 I MA 80 1MB MA 65 3M SH02- Vastus Lateralis Left Segments SH03- Vastus Lateralis Left Segments Tests 1MA 1MB 2M 3M SH01 Y Y I X MA 70 1MB MA Tests 1MA 1MB 2M 3M SH06 Y Y Y Y 1MA 1MB 2MA 3M SH01- Vastus Lateralis Right SH02- Vastus Lateralis Right Segments SH03- Vastus Lateralis Right Segments 1MA 1MB 2MA 1MA 1MB 2MA 3M 1MA 1MB 2MA 3M
25 25
26 Electromyography Segmented Assessment for Lower Limb Muscle Conclusions Two methods were used to study the muscle transition to fatigue: 1. Amplitude segmented row data related with mean Median Frequency (MF) The subject must generate more magnitude of voltage ( Force ) to maintain the frequency and when less magnitudes are generated are on the muscle transition to fatigue steps (accumulation of MUAP is reaching its limits ) Transition to fatigue 2. MF changes on the muscles with more activities on all segmented tests show clear frequency shift to lower values when more time is tested as Dif. Freq =fmax-fmin, higher average, more variance and negative slope SH12 1MA 1MB 2MA 3M AVERAGE VARIANCE STD DESV SLOPE Dif. Freq
27 Electromyography Segmented Assessment for Lower Limb Muscle Conclusions 3. Results test suggests : People that make exercise regularly show a longer period to muscle Transition-to Fatigue and even can correct some irregularity. Males may experience greater muscle fatigue than female shows. 4. Muscle are different for each subjects then the transition to fatigue vary according with a big numbers of variables that can influence like: age, anthropometric data, alcohol levels, caffeine, smoke, exercise, different kind of food and many more. This assessment based on segmentation of semg shows promising results for detecting and predicting muscle transition to fatigue. More research is needed before be applied on different human-computer interaction as automated system like: Sport to improve performance or prevent injury Ergonomics to improve postures Prosthetics to feedback how to avoid unnecessary strain on the muscle to prevent more injury Special jobs where is a risk for any musculoskeletal injury. 27
28 References: [1] Merletti, R.; Parker, P.A. Electromyography: Physiology, Engineering and Non-Invasive Applications; John Wiley and sons, Inc.: New York, NY, USA, [2] Mair, S.D.; Seaber, A.V.; Glisson, R.R.; Garrett, W.E. The role of fatigue in susceptibility to acute muscle strain injury. Am. J. Sport. Med. 1996, 24, [3] Al-Mulla, M.R.; Sepulveda, F.; Colley, M.; Al-Mulla, F. Statistical class separation using semg features towards automated muscle fatigue detection and prediction. In Proceedingsof International congress on image and signal processing, Tianjin, China, 7 19 October 2009; pp [4] Herberts, P.; Kadefors, R.; Broman, H. Arm positioning in manual tasks. An electromyographic study of localized muscle fatigue. Ergonomics 1980, 23, [5] M. B. I. Reaz, M. S. Hussain, and F. Mohd-Yasin. Techniques of emg signal analysis: detection, processing, classification and applications. Biological Procedures Online, [6] Calder, K.M.; Stashuk, D.W.; McLean, L. Physiological characteristics of motor units in the brachioradialis muscle across fatiguing low-level isometric contractions. J. Electromyograph. Kinesiol. 2008, 18, [7] Mohamed R. Al-Mulla, Francisco Sepulveda and Martin Colley. A Review of Non-Invasive Techniques to Detect and Predict Localised Muscle Fatigue. Sensors 2011, ISSN [8] Alexander RM, Bennet-Clark HC Storage of elastic strain energy in muscle and other tissues. Nature 265: [9] Marieb, Book: Human Anatomy & Physiology 5th edition, Benjamin Cummings, San Francisco 2001 [10]Sheir, Butler, & Lewis Hole, Book: Human Anatomy 10th edition McGraw Hill, Boston
Analysis of EMG Signal to Evaluate Muscle Strength and Classification
Analysis of EMG Signal to Evaluate Muscle Strength and Classification Kiran K. 1, Uma Rani K. 2 1MTech Student, Biomedical Signal Processing and Instrumentation, Dept. of IT, SJCE, Mysuru, Karnataka, India
More informationNeuromuscular Mechanics
Schematic Representation of Motor Units in Skeletal Muscle Neuromuscular Mechanics Hamill & Knutzen (Ch 4) Whatever text you read do not focus on motorneuron structure and sensory receptors Muscle Fibres
More informationDevelopment of an ergonomic musculoskeletal model to estimate muscle forces during vertical jumping
Available online at www.sciencedirect.com Procedia Engineering 13 (2011) 338 343 5 th Asia-Pacific Congress on Sports Technology (APCST) Development of an ergonomic musculoskeletal model to estimate muscle
More informationMuscle Cell Anatomy & Function (mainly striated muscle tissue)
Muscle Cell Anatomy & Function (mainly striated muscle tissue) General Structure of Muscle Cells (skeletal) several nuclei (skeletal muscle) skeletal muscles are formed when embryonic cells fuse together
More informationMuscle Function: Understanding the Unique Characteristics of Muscle. Three types of muscle. Muscle Structure. Cardiac muscle.
: Understanding the Unique Characteristics of Muscle Scott Riewald United States Olympic Committee Three types of muscle Cardiac muscle Involuntary Smooth muscle Involuntary Skeletal muscle Voluntary Involuntary
More informationMuscles & Physiology
Collin County Community College BIOL 2401 Muscles & Physiology 1 Tension Development The force exerted by a contracting muscle cell or muscle group on an object is called muscle tension, and the opposing
More informationLecture Overview. Muscular System. Marieb s Human Anatomy and Physiology. Chapter 9 Muscles and Muscle Tissue Lecture 16
Marieb s Human Anatomy and Physiology Marieb Hoehn Chapter 9 Muscles and Muscle Tissue Lecture 16 1 Lecture Overview Types, characteristics, functions of muscle Structure of skeletal muscle Mechanism of
More informationBiomechanics of Skeletal Muscle
Biomechanics of Skeletal Muscle Contents I. Composition & structure of skeletal muscle II. Mechanics of Muscle Contraction III. Force production in muscle IV. Muscle remodeling V. Summary 2 Muscle types:
More informationSkeletal Muscle Qiang XIA (
Skeletal Muscle Qiang XIA ( 夏强 ), PhD Department of Physiology Rm C518, Block C, Research Building, School of Medicine Tel: 88208252 Email: xiaqiang@zju.edu.cn Course website: http://10.71.121.151/physiology
More informationLab 3: Excitability & Response of Skeletal Muscle
Lab 3: Excitability & Response of Skeletal Muscle รศ.ดร.นพ. ช ยเล ศ ชยเลศ พ ช ตพรช ย พชตพรชย ภาคว ชาสร รว ทยา คณะแพทยศาสตร ศ ร ราชพยาบาล Objectives 1. Threshold, submaximal, maximal, supramaximal stimulus
More informationChapter 9 Muscle. Types of muscle Skeletal muscle Cardiac muscle Smooth muscle. Striated muscle
Chapter 9 Muscle Types of muscle Skeletal muscle Cardiac muscle Smooth muscle Striated muscle Chapter 9 Muscle (cont.) The sliding filament mechanism, in which myosin filaments bind to and move actin
More informationCOMPARISON OF FOURIER AND WAVELET TRANSFORMS ON SEMG FREQUENCY SPECTRA DURING RAPID FATIGUING MUSCULAR CONTRACTIONS
COMPARISON OF FOURIER AND WAVELET TRANSFORMS ON SEMG FREQUENCY SPECTRA DURING RAPID FATIGUING MUSCULAR CONTRACTIONS McNair Scholar: Amber Craft Faculty Mentor: Dr. Ron Croce Kinesiology Department BACKGROUND
More informationSkeletal Muscle. Connective tissue: Binding, support and insulation. Blood vessels
Chapter 12 Muscle Physiology Outline o Skeletal Muscle Structure o The mechanism of Force Generation in Muscle o The mechanics of Skeletal Muscle Contraction o Skeletal Muscle Metabolism o Control of Skeletal
More information1-Recognize the meaning of summation of contraction and its types. 2-detrmine the effect of changing length on skeletal muscle tension.
Lec7 Physiology Dr.HananLuay Objectives 1-Recognize the meaning of summation of contraction and its types. 2-detrmine the effect of changing length on skeletal muscle tension. 3-Differntiate between the
More informationA and P CH 8 Lecture Notes.notebook. February 10, Table of Contents # Date Title Page # /30/17 Ch 8: Muscular System
Table of Contents # Date Title Page # 1. 01/30/17 Ch 8: Muscular System 2. 1 3. 4. 5. 6. 7. i 1 Turnitin.com Class #: 13551662 Password: GoViks 2 01/30/17 Ch 8: Muscular System Objective: Students will
More informationMuscle Tissue- 3 Types
AN INTRODUCTION TO MUSCLE TISSUE Muscle Tissue- 3 Types Skeletal muscle (focus on these) Cardiac muscle Smooth muscle FUNCTIONS OF SKELETAL MUSCLES Produce movement of the skeleton Maintain posture and
More informationCHAPTER 6 2/9/2016. Learning Objectives List the four traits that all muscle types have in common.
Learning Objectives List the four traits that all muscle types have in common. CHAPTER 6 The Muscular System Demonstrate and explain the use of antagonistic muscle pairs. Describe the attachment of muscle
More informationDoctoral School on Engineering Sciences Università Politecnica delle Marche
Doctoral School on Engineering Sciences Università Politecnica delle Marche Extended summary Muscle Fatigue Assessment during Flexion Extension Movements Curriculum: Electromagnetism and Bioengineering
More informationMuscle Tissue. Muscle Tissue Outline. General Function of Muscle Tissue
Muscle Tissue Muscle Tissue Outline General Functions of Muscle Tissue Characteristics of Muscle Tissue Classification of Muscle Tissue Skeletal Muscle Structure and Function Muscle Energetics Muscle Mechanics
More informationEnergy for Muscle Contractions: Direct phosphorylation. Creatine phosphate loses a phosphate to ADP to create ATP
Energy for Muscle Contractions: Direct phosphorylation Aerobic respiration Anaerobic respiration (lactic acid fermentation) Creatine phosphate loses a phosphate to ADP to create ATP Requires oxygen to
More informationThe Musculoskeletal System. Chapter 46
The Musculoskeletal System Chapter 46 Types of Skeletal Systems Changes in movement occur because muscles pull against a support structure Zoologists recognize three types: 1. Hydrostatic skeletons a fluid
More information10 - Muscular Contraction. Taft College Human Physiology
10 - Muscular Contraction Taft College Human Physiology Muscular Contraction Sliding filament theory (Hanson and Huxley, 1954) These 2 investigators proposed that skeletal muscle shortens during contraction
More information2/19/2018. Learn and Understand:
Muscular System with Special Emphasis on Skeletal Muscle Anatomy and Physiology Learn and Understand: The definition of cell changes again The contractile unit of muscle is the sarcomere. ATP and Ca 2+
More informationMUSCULAR SYSTEM CHAPTER 09 BIO 211: ANATOMY & PHYSIOLOGY I
1 BIO 211: ANATOMY & PHYSIOLOGY I 1 CHAPTER 09 MUSCULAR SYSTEM Part 2 of 2 Dr. Dr. Lawrence G. G. Altman www.lawrencegaltman.com Some illustrations are courtesy of McGraw-Hill. Some illustrations are courtesy
More informationDELSYS. Purpose. Hardware Concepts. Software Concepts. Technical Note 101: EMG Sensor Placement
Technical Note 101: EMG Sensor Placement Purpose This technical note addresses proper placement technique for Delsys Surface EMG Sensors. The technique is demonstrated through an experiment in which EMG
More informationNerve Cell (aka neuron)
Nerve Cell (aka neuron) Neuromuscular Junction Nerve cell Muscle fiber (cell) The Nerve Stimulus and Action Potential The Nerve Stimulus and Action Potential Skeletal muscles must be stimulated by a motor
More informationBioGraph Infiniti DynaMap Suite 3.0 for FlexComp Infiniti March 2, SA7990A Ver 3.0
BioGraph Infiniti DynaMap Suite 3.0 for FlexComp Infiniti March 2, 2006 SA7990A Ver 3.0 DynaMap Suite 3.0 for FlexComp Infiniti Contents List F Inf 10 Ch EMG Bi-Lateral Difference.chs 3 F Inf 10 Ch EMG.chs
More informationBIOH111. o Cell Module o Tissue Module o Integumentary system o Skeletal system o Muscle system o Nervous system o Endocrine system
BIOH111 o Cell Module o Tissue Module o Integumentary system o Skeletal system o Muscle system o Nervous system o Endocrine system Endeavour College of Natural Health endeavour.edu.au 1 Textbook and required/recommended
More informationPage 1. Chapter 9: Muscle Tissue. Types of Muscle Tissue: Skeletal Muscle Cardiac Muscle Smooth Muscle. Gross Anatomy of Muscle:
1 Chapter 9: Muscle Tissue Types of Muscle Tissue: Skeletal Muscle Cardiac Muscle Smooth Muscle Characteristics: Attaches to skeleton Voluntary control Striated / multi-nucleated Characteristics: Composes
More informationChapter 9 - Muscle and Muscle Tissue
Chapter 9 - Muscle and Muscle Tissue I. Overview of muscle tissue A. Three muscle types in the body: B. Special characteristics 1. Excitability: able to receive and respond to a stimulus 2. Contractility:
More informationPage 1. Chapter 9: Muscle Tissue. Types of Muscle Tissue: Skeletal Muscle Cardiac Muscle Smooth Muscle. Characteristics of Muscle:
1 Chapter 9: Muscle Tissue Muscle little mouse Types of Muscle Tissue: Skeletal Muscle Cardiac Muscle Smooth Muscle Characteristics: Attaches to skeleton Voluntary control Striated / multi-nucleated Characteristics:
More informationAustralian Journal of Basic and Applied Sciences. Pattern Behavior of Electromyography Signal During Arm Movements
AENSI Journals Australian Journal of Basic and Applied Sciences ISSN:1991-8178 Journal home page: www.ajbasweb.com Pattern Behavior of Electromyography Signal During Arm Movements 1 Zunaidi, I., 1 Wan
More informationMuscular System - Part III. Tension, Contractions, & Metabolism
Do Now: What is the neurotransmitter that is released from the neuron at the NMJ? When it binds to sarcolemma receptors, what occurs? To what does calcium bind? What occurs when this bond forms? Muscular
More informationUnit 4: The Muscular System REVIEW GUIDE
NPHS Anatomy & Physiology Questions to answer: 1) List the three functions of the muscular system. Unit 4: The Muscular System REVIEW GUIDE 2) What are the four characteristics of muscle tissue? Briefly
More informationThe Muscular System 6PART B. PowerPoint Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College
PowerPoint Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College The Muscular System 6PART B Contraction of Skeletal Muscle Muscle fiber contraction is all or none
More informationMuscle and Muscle Tissue
Muscle and Muscle Tissue Make up about half of total body mass Exerts force by converting chemical energy, ATP, to mechanical energy Muscle tissue is classified based on Shape Number and position of nuclei
More informationCardiovascular system progress chart
Neural muscular system Topic 3A: Characteristics and functions of different muscle fibre types for a variety of sporting activities Term Muscle fibre Slow twitch (type I) Fast oxidative glycolytic (type
More informationCh 12: Muscles sarcolemma, t-tubules, sarcoplasmic reticulum, myofibrils, myofilaments, sarcomere...
Ch 12: Muscles Review micro-anatomy of muscle tissue Terminology examples: sarcolemma, t-tubules, sarcoplasmic reticulum, myofibrils, myofilaments, sarcomere... SLOs Differentiate levels of muscle structure:
More informationIMPROVEMENT OF MUSCLE STRENGTH IN REHABILITATION BY THE USE OF SURFACE ELECTROMYOGRAPHY
IMPROVEMENT OF MUSCLE STRENGTH IN REHABILITATION BY THE USE OF SURFACE ELECTROMYOGRAPHY Rainbow-K.Y. Law, Kevin-S.C. Kwong, Christina-W.Y. Hui-Chan Department of Rehabilitation Sciences, The Hong Kong
More informationBio 103 Muscular System 61
61 Lecture Outline: MUSCULAR SYSTEM [Chapter 9] A. Functions of Skeletal Muscle 1. Movement 2. Maintain posture 3. Support 4. Guard openings 5. Maintain body temperature (thermogenesis) B. Muscle Tissue
More informationBioGraph Infiniti DynaMap Suite 3.0 for ProComp Infiniti March 2, SA7990B Ver 3.0
BioGraph Infiniti DynaMap Suite 3.0 for ProComp Infiniti March 2, 2006 SA7990B Ver 3.0 DynaMap Suite 3.0 for ProComp Infiniti Contents List P Inf 8 Ch EMG Bi-Lateral Difference.chs 3 P Inf 8 Ch EMG.chs
More informationChapter 7 The Muscular System - Part 2. Mosby items and derived items 2012 by Mosby, Inc., an affiliate of Elsevier Inc. 1
Chapter 7 The Muscular System - Part 2 Mosby items and derived items 2012 by Mosby, Inc., an affiliate of Elsevier Inc. 1 FUNCTIONS OF SKELETAL MUSCLE A. Functions 1. Movement 2. Posture or muscle tone
More informationIntroduction to Electromyography (EMG) Hands-On Research School Shanghai Jiao Tong University Daniel Goldman, Sarah Sharpe, Nick Gravish
Introduction to Electromyography (EMG) Hands-On Research School Shanghai Jiao Tong University Daniel Goldman, Sarah Sharpe, Nick Gravish Muscles: Motors of the human body Act to generate force and produce
More informationQ: What is the relationship between muscle forces and EMG data that we have collected?
FAQs ABOUT OPENSIM Q: What is the relationship between muscle forces and EMG data that we have collected? A: Muscle models in OpenSim generate force based on three parameters: activation, muscle fiber
More informationSession 3-Part 2: Skeletal Muscle
Session 3-Part 2: Skeletal Muscle Course: Introduction to Exercise Science-Level 2 (Exercise Physiology) Presentation Created by Ken Baldwin, M.ED, ACSM-H/FI Copyright EFS Inc. All Rights Reserved. Skeletal
More informationMUSCLE TISSUE (MUSCLE PHYSIOLOGY) PART I: MUSCLE STRUCTURE
PART I: MUSCLE STRUCTURE Muscle Tissue A primary tissue type, divided into: skeletal muscle cardiac muscle smooth muscle Functions of Skeletal Muscles Produce skeletal movement Maintain body position Support
More informationHumans make voluntary decisions to talk, walk, stand up, or sit down. The
2 E X E R C I S E Skeletal Muscle Physiology O B J E C T I V E S 1. To define motor unit, twitch, latent period, contraction phase, relaxation phase, threshold, summation, tetanus, fatigue, isometric contraction,
More informationGreat deal of our work activities require physical effort and the manual handling of materials, supplies and tools.
Physical Workload Introduction Great deal of our work activities require physical effort and the manual handling of materials, supplies and tools. 2 Stress & Strain Stress Undesirable condition, circumstance,
More informationThe Muscular System PART B
6 The Muscular System PART B PowerPoint Lecture Slide Presentation by Jerry L. Cook, Sam Houston University ESSENTIALS OF HUMAN ANATOMY & PHYSIOLOGY EIGHTH EDITION ELAINE N. MARIEB The Sliding Filament
More informationAnatomy & Physiology Muscular System Worksheet
Anatomy & Physiology Muscular System Worksheet 1. What are the three categories of muscle tissue? a) b) c) 2. The smallest functional unit of a muscle fiber is called a. 3. What are the four characteristics
More informationEMG Signal Analysis for the Biceps Brachialis using FFT and Power Sectral Analysis
EMG Signal Analysis for the Biceps Brachialis using FFT and Power Sectral Analysis Dipti Inamdar Department of Instrumentation and Control Cummins College of Engineering for Women, Pune India Prof. H.
More informationMuscles and Muscle Tissue
1 Muscles and Muscle Tissue Chapter 9 2 Overview of Muscle Tissues Compare and Contrast the three basic types of muscle tissue List four important functions of muscle tissue 3 Muscle Terminology Muscle
More informationChapter 10! Muscle Tissue - Part 2! Pages ! SECTION 10-5! Sarcomere shortening and muscle fiber stimulation produce tension!
! Chapter 10, Part 2 Muscle Chapter 10! Muscle Tissue - Part 2! Pages 308-324! SECTION 10-5! Sarcomere shortening and muscle fiber stimulation produce tension! 2! 1 Tension Production - MUSCLE FIBER! All-or-none
More informationChapter 10! Chapter 10, Part 2 Muscle. Muscle Tissue - Part 2! Pages !
! Chapter 10, Part 2 Muscle Chapter 10! Muscle Tissue - Part 2! Pages 308-324! SECTION 10-5! Sarcomere shortening and muscle fiber stimulation produce tension! 2! Tension Production - Muscle FIBER! All-or-none
More informationHuman Anatomy and Physiology - Problem Drill 09: The Muscular System
Human Anatomy and Physiology - Problem Drill 09: The Muscular System Question No. 1 of 10 The muscular system of the human body fulfills many different roles. Which of the following statements about the
More informationΜέθοδοι Εμβιομηχανικών μηχ Μετρήσεων
MANAGING AUTHORITY OF THE OPERATIONAL PROGRAMME EDUCATION AND INITIAL VOCATIONAL TRAINING EUROPEAN COMMUNITY Co financing European Social Fund (E.S.F.) European Regional Development Fund (E.R.D.F.) MINISTRY
More informationExercise 6: Muscle Physiology II Twitch & Summation
Exercise 6: Muscle Physiology II Twitch & Summation Text Reading: Silverthorn, 5 th ed. 412 419, 425 427; 6 th ed. pg. 410 420 In this exercise, we will investigate the physiology of contraction in the
More informationWarm Up! Test review (already! ;))
Warm Up! Test review (already! ;)) Write a question you might find on the Unit 5 test next week! (Multiple choice, matching, fill in, or short answer!) - challenge yourself and be ready to share!!! PowerPoint
More informationAnatomy and Physiology 1 Chapter 10 self quiz Pro, Dima Darwish,MD.
Anatomy and Physiology 1 Chapter 10 self quiz Pro, Dima Darwish,MD. 1) Which of the following is a recognized function of skeletal muscle? A) produce movement B) maintain posture C) maintain body temperature
More informationMuscle Mechanics. Bill Sellers. This lecture can be found at:
Muscle Mechanics Bill Sellers Email: wis@mac.com This lecture can be found at: http://mac-huwis.lut.ac.uk/~wis/lectures/ Muscles are not straightforward linear tension generators but behave in quite unexpected
More informationNerve regeneration. Somatic nervous system
Somatic nervous system Signals from CNS are sent to skeletal muscles. Final result is a muscle contraction. Motor neuron starts in CNS and its axon ends at a muscle cell. Alpha motor neuron Alpha motor
More informationNerve meets muscle. Nerve regeneration. Somatic nervous system
Somatic nervous system Signals from CNS are sent to skeletal muscles. Final result is a muscle contraction. Alpha motor neurons branch into several terminals (can be over 1000), each contacting a separate
More informationEMG Signals for Co-Activations of Major Lower Limb Muscles in Knee Joint Dynamics
Biomedical Science and Engineering, 2015, Vol. 3, No. 1, 9-14 Available online at http://pubs.sciepub.com/bse/3/1/3 Science and Education Publishing DOI:10.12691/bse-3-1-3 EMG Signals for Co-Activations
More informationBiomechanics of Skeletal Muscle and the Musculoskeletal System
Biomechanics of Skeletal Muscle and the Musculoskeletal System Hamill & Knutzen (Ch 3) Nordin & Frankel (Ch 5), or Hall (Ch. 6) Muscle Properties Ø Irritability Ø Muscle has the capability of receiving
More informationA Comparison of Measures of the Bilateral Limb Deficit During Short and Long Time Isometric Knee Extensions
ISPUB.COM The Internet Journal of Bioengineering Volume 4 Number 2 A Comparison of Measures of the Bilateral Limb Deficit During Short and Long Time Isometric Knee U Kuruganti, P Parker, M Tingley, G Sleivert
More information2 EMG ELECTRODES INTRODUCTION 3 MATERIALS AND METHODOLOGY. All Rights Reserved 2015 IJARECE. 2.1 Needle Electrodes
Segmentation of the EMG Signal and Comparison of the Normal and Diseased EMG signals Ashmeet Kaur (Student) Baba Banda Singh Bahadur Engineering College Navneet Kaur Panag (Assistant Professor) Baba Banda
More informationSkeletal Muscle and the Molecular Basis of Contraction. Lanny Shulman, O.D., Ph.D. University of Houston College of Optometry
Skeletal Muscle and the Molecular Basis of Contraction Lanny Shulman, O.D., Ph.D. University of Houston College of Optometry Like neurons, all muscle cells can be excited chemically, electrically, and
More informationEQA DISCUSSION QUESTIONS: INFLUENCE OF MUSCLE FIBER TYPE ON MUSCLE CONTRACTION. Influence of Muscle Fiber Type on Muscle Contraction
0907T_c13_205-218.qxd 1/25/05 11:05 Page 209 EXERCISE 13 CONTRACTION OF SKELETAL MUSCLE 209 Aerobic cellular respiration produces ATP slowly, but can produce large amounts of ATP over time if there is
More informationCHAPTER 3: The neuromuscular system. Practice questions - text book pages QUESTIONS AND ANSWERS. Answers
QUESTIONS AND ANSWERS CHAPTER 3: The neuromuscular system Practice questions - text book pages 46-48 1) Which type of muscle fibre is associated with endurance? a. fast twitch muscle fibres, because they
More informationLab Exercise 8. BIOPAC Exercise. Muscle Tissue. Muscles. What you need to be able to do on the exam after completing this lab exercise:
Lab Exercise 8 BIOPAC Exercise Muscle Tissue Muscles Textbook Reference: See Chapters 9 & 10 What you need to be able to do on the exam after completing this lab exercise: Be able to answer questions covering
More informationNOTES MUSCULAR SYSTEM
NOTES for the MUSCULAR SYSTEM Anatomy & Physiology 2016 Johnson I. Muscular System A. Specialized tissue that does one thing: shorten. B. Functions: 1. Movement (of body, blood, food, etc.). 2. Stabilize
More informationMuscle Physiology. Dr. Ebneshahidi Ebneshahidi
Muscle Physiology Dr. Ebneshahidi Skeletal Muscle Figure 9.2 (a) Functions of the muscular system 1. Locomotion body movements are due to skeletal muscle contraction. 2. Vasoconstriction and vasodilatation
More informationLIFETIME FITNESS HEALTHY NUTRITION. UNIT 2 Lesson 5 FLEXIBILITY LEAN BODY COMPOSITION
LIFETIME FITNESS HEALTHY NUTRITION MUSCULAR STRENGTH AEROBIC ENDURANCE UNIT 2 Lesson 5 FLEXIBILITY LEAN BODY COMPOSITION MUSCULAR ENDURANCE Created by Derek G. Becher B.P.E., B. Ed., AFLCA Resistance Trainer
More informationPrinciples of Anatomy and Physiology
Principles of Anatomy and Physiology 14 th Edition CHAPTER 10 Muscular Tissue Introduction The purpose of the chapter is to: 1. Learn about the structure and function of the 3 types of muscular tissue
More informationAbstract. Introduction
The Potential Reduction in Musculoskeletal Injury Risk in the Non-Scanning Arm by Utilizing Voice-Scan Technology During Ultrasound Examinations Kristin Bravo Carolyn T. Coffin, MPH, RDMS, RVT, RDCS Susan
More informationElectromyography II Laboratory (Hand Dynamometer Transducer)
(Hand Dynamometer Transducer) Introduction As described in the Electromyography I laboratory session, electromyography (EMG) is an electrical signal that can be recorded with electrodes placed on the surface
More information1. Locomotion. 2. Repositioning. 3. Internal movement
MUSCLE and MOVEMENT Chapters 20, 8, 21 1. Locomotion A. Movement B. 2. Repositioning A. 3. Internal movement A. 1 Muscle Cells 1. Contractile 2. Myocytes 3. Striated A. Skeletal B. Cardiac 4. Smooth 5.
More information1. Locomotion. 2. Repositioning. 3. Internal movement
MUSCLE and MOVEMENT Chapters 20, 8, 21 1. Locomotion A. Movement B. 2. Repositioning A. 3. Internal movement A. Muscle Cells 1. Contractile 2. Myocytes 3. Striated A. Skeletal B. Cardiac 4. Smooth 5. Striated
More informationLab #9: Muscle Physiology
Background Overview of Skeletal Muscle Contraction Sarcomere Thick Filaments Skeletal muscle fibers are very large, elongated cells (Fig 9.1). Roughly 80% of the content of each muscle fiber consists of
More informationTMG - BMC LTD. Mirje 6 Tel: ( ) Ljubljana Fax: ( ) TENSIOMYOGRAPHY (TMG) MEASUREMENT RESULTS
TMG - BMC LTD. Mirje 6 Tel: (00 386 1) 4210 037 1000 Ljubljana Fax: (00 386 1) 2425 382 Slovenia Email: info@tmg.si Europe (EU) Web: www.tmg.si TENSIOMYOGRAPHY (TMG) MEASUREMENT RESULTS Subject: Adrian
More informationEvaluation copy. EMG and Muscle Fatigue. Computer
EMG and Muscle Fatigue Computer 18 Voluntary muscle contraction is the result of communication between the brain and individual muscle fibers of the musculoskeletal system. A thought is transformed into
More informationCentral and peripheral fatigue in sustained maximum voluntary contractions of human quadriceps muscle
Clinical Science and Molecular Medicine (1978) 54,609-614 Central and peripheral fatigue in sustained maximum voluntary contractions of human quadriceps muscle B. BIGLAND-RITCHIE*, D. A. JONES, G. P. HOSKING
More informationMusculoskeletal Systems. Anatomy: Arrangement of Cells Physiology: Contractions
Musculoskeletal Systems Anatomy: Arrangement of Cells Physiology: Contractions Characteristics of all muscle Contractile: it shortens Excitable: receives & responds to electrical signals Extensible: stretches
More informationORIGINAL ARTICLE SOLEUS MUSCLE CONTRACTION ON DRIVER S KNEE ANGLE POSTURE MORE THAN 144º FOR FOOT PRESSING AND RELEASING AN AUTOMOTIVE PEDAL
ORIGINAL ARTICLE SOLEUS MUSCLE CONTRACTION ON DRIVER S KNEE ANGLE POSTURE MORE THAN 144º FOR FOOT PRESSING AND RELEASING AN AUTOMOTIVE PEDAL Yusoff, A.R. 1, Deros, B.M. 1, Daruis, D.D.I. 2 and Joseph H,
More informationEvaluation of Shoulder Muscular Fatigue Induced During VDT Tasks
INTERNATIONAL JOURNAL OF HUMAN COMPUTER INTERACTION, 15(3), 407 417 Copyright 2003, Lawrence Erlbaum Associates, Inc. Evaluation of Shoulder Muscular Fatigue Induced During VDT Tasks Atsuo Murata Department
More informationEssentials of Human Anatomy & Physiology. The Muscular System
Essentials of Human Anatomy & Physiology The Muscular System The Muscular System Muscles are responsible for all types of body movement they contract or shorten and are the machine of the body Three basic
More informationThe Biomechanics of Human Skeletal Muscle
AML2506 Biomechanics and Flow Simulation Day 03B The Biomechanics of Human Skeletal Muscle Session Speaker Dr. M. D. Deshpande 1 Session Objectives At the end of this session the delegate would have understood
More information2/4/2018. Identify the two reasons why muscle cells may go through muscle fatigue. Ch.7 Review. Sternocleidomastoid.
Ch.7 Review Identify the two reasons why muscle cells may go through muscle fatigue Temporalis Depressor anguli oris Sternocleidomastoid Tibialis anterior 1 Gluteus medius Deltoid Adducts & rotates scapula
More informationSmooth Cardiac Skeletal Location Around tubes Heart tissue attached to skeleton Moves stuff thru Heart beat pumps Moves body parts
Biology 067 - Muscular system A. Type of muscles: Smooth Cardiac Skeletal Location Around tubes Heart tissue attached to skeleton Function Moves stuff thru Heart beat pumps Moves body parts tubes blood
More informationAnalysis of EMG and Biomechanical Features of Sports Aerobics Movements
Analysis of EMG and Biomechanical Features of Sports Aerobics Movements Jingjing Wang* WuHan Sport University, Wuhan, Hubei, 430070, China *itrazyl@163.com Abstract To analyze electromyography (EMG) and
More informationErigo User Script 1. Erigo Background Information. 2. Intended use and indications
Erigo User Script 1. Erigo Background Information The Erigo was developed in collaboration with the Spinal Cord Injury Center at the Balgrist University Hospital in Zurich, Switzerland and the Orthopaedic
More informationI. Overview of Muscle Tissues
I. Overview of Muscle Tissues A. Types of Muscle Tissue 1. Terminology 1. Muscle fibers = muscle cells are greatly elongated therefore known as fibers; true for skeletal and smooth muscles only 2. Myo
More informationPhysiology sheet #2. The heart composed of 3 layers that line its lumen and cover it from out side, these layers are :
Physiology sheet #2 * We will talk in this lecture about cardiac muscle physiology, the mechanism and the energy sources of their contraction and intracellular calcium homeostasis. # Slide 4 : The heart
More informationBell Work. How does the muscular system relate to the following organ systems, Respiratory Circulatory Digestive
Muscular System Bell Work How does the muscular system relate to the following organ systems, Respiratory Circulatory Digestive Exercise Science Standards 8) Review the gross and cellular anatomy and physiology
More informationInvestigation of Human Whole Body Motion Using a Three-Dimensional Neuromusculoskeletal Model
Investigation of Human Whole Body Motion Using a Three-Dimensional Neuromusculoskeletal Model 1 Akinori Nagano, 2 Senshi Fukashiro, 1 Ryutaro Himeno a-nagano@riken.jp, fukashiro@idaten.c.u-tokyo.ac.jp,
More informationPSK4U THE NEUROMUSCULAR SYSTEM
PSK4U THE NEUROMUSCULAR SYSTEM REVIEW Review of muscle so we can see how the neuromuscular system works This is not on today's note Skeletal Muscle Cell: Cellular System A) Excitation System Electrical
More informationCLASS SET Unit 4: The Muscular System STUDY GUIDE
NPHS Anatomy & Physiology Questions to answer: 1) List three functions of the muscular system. 1) movement 2) thermogenesis (generates heat) 3) posture & body/joint support CLASS SET Unit 4: The Muscular
More informationMotor Control in Biomechanics In Honor of Prof. T. Kiryu s retirement from rich academic career at Niigata University
ASIAN SYMPOSIUM ON Motor Control in Biomechanics In Honor of Prof. T. Kiryu s retirement from rich academic career at Niigata University APRIL 20, 2018 TOKYO INSTITUTE OF TECHNOLOGY Invited Speakers Dr.
More informationRemoving ECG Artifact from the Surface EMG Signal Using Adaptive Subtraction Technique
www.jbpe.org Removing ECG Artifact from the Surface EMG Signal Using Adaptive Subtraction Technique Original 1 Department of Biomedical Engineering, Amirkabir University of technology, Tehran, Iran Abbaspour
More informationEEG, ECG, EMG. Mitesh Shrestha
EEG, ECG, EMG Mitesh Shrestha What is Signal? A signal is defined as a fluctuating quantity or impulse whose variations represent information. The amplitude or frequency of voltage, current, electric field
More information