Alcohol & Exercise: A popular cocktail, but do they mix? Jakob L. Vingren, PhD, FACSM, CSCS*D University of North Texas Denton, TX
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2 Alcohol & Exercise: A popular cocktail, but do they mix? Jakob L. Vingren, PhD, FACSM, CSCS*D University of North Texas Denton, TX
3 Overview Alcohol use and physical activity Alcohol s effect on performance Exercise during intoxication Exercise after intoxication Alcohol intoxication after exercise Acute effects of alcohol on physiology
4 Alcohol Use & Physical Activity
5 Alcohol Use & Physical Activity Frequency and amount of use w. frequency of exercise Male and female college students Measures Infrequent (0-2 d/wk) Exercise frequency Regular (3-4 d/wk) Frequent (5-7 d/wk) Frequency of consumption * Amount consumed ** Drinking heavily Smoking cigarettes ** Infrequent vs. frequent exercisers: *P =0.05, **P <0.01 Moore and Werch, 2008
6 Alcohol Use & Physical Activity (BRFSS) Use w. total and vigorous physical activity (PA) Alcohol use Women (n=140,925) Abstaining Light Moderate Heavy Weekly min of total PA** Weekly min of vigorous PA** Any vigorous PA (%)** Men (n=109,931) Abstaining Light Moderate Heavy Weekly min of total PA** Weekly min of vigorous PA** Any vigorous PA (%)** ** P<0.01 across alcohol use categories French et al., 2009
7 Alcohol Use: NCAA Athletes % of athletes Across All Divisions Slightly higher use among men -High use across all sports -Many (~40%) engage in Binge drinking ~80% had initial use before entering college NCAA, 2006, 2014
8 Alcohol Use & Physical Activity Summary on alcohol use: High use among athletes At least as high as for non-athlete peers Physically active vs. sedentary adults Greater frequency Greater amount consumed
9 Alcohol & Performance Exercise during intoxication
10 Early Research: During Intoxication (men) g dl -1 Asmussen and Bøje, 1947
11 Endurance: During Intoxication Alcohol No-alcohol Power Cycling (men) 60 min time trial Alcohol: 0.5 ml/kg FFM BAC 0.02% Effect of Alcohol: 3.9% performance Glucose oxidation rate Blood glucose Blood Glucose Lecoultre & Schutz, 2009
12 Strength: During Intoxication Men and women Alcohol:1.5 g kg -1 Knee extensions Maximal isokinetic & isometric strength Blood alcohol concentration (BAC) Peak: 0.14 g dl -1 Poulsen et al., 2007
13 Strength: During Intoxication No effect of alcohol BAC: 0.14 g/dl Knee extensions Voluntary & evoked Max Isokinetic Poulsen et al., 2007
14 Exercise During Intoxication Summary on effect of alcohol: Performance in cycling time trials lasting ~5-60 min Isokinetic or isometric strength
15 Alcohol & Performance Exercise after alcohol intoxication (during hangover )
16 Time trial: During Hangover Alcohol: 1.7 g kg -1 ( g kg -1 ) ~13 drinks ⅓ Participants had severe hangover W on morning after Effect of Hangover Completion: 9/27 vs. 15/27 Work performed HR during exercise Karvinen et al., 1961
17 During Hangover No effect of alcohol Strength Power Control Hangover Hand Grip Back/leg Pull Vertical Jump Karvinen et al., 1961
18 Exercise after alcohol intoxication (During hangover ) Summary on effect of alcohol: Performance in cycling time trial: 5 min Isometric strength Maximal explosive power
19 Alcohol & Performance Alcohol intoxication after exercise (during recovery)
20 Strength: Alcohol During Recovery Alcohol delayed recovery Men 300 max eccentric leg extensions 1 g kg -1 (8 ± 2.8 drinks) Effect of alcohol Eccentric (Torque) Isometric (Torque) Concentric (Torque) Creatine kinase No exercise leg w. 0.5 g kg -1 Barnes et al., 2009, 2010, 2011
21 Strength: Alcohol During Recovery Alcohol enhanced recovery Women (preliminary results; n=10) 300 max eccentric leg extensions 1.09 g kg -1 FFM BAC: ~0.12 g dl -1 Effect of alcohol Concentric (Torque) Eccentric (Torque) Isometric (Torque) No exercise leg * No-exercise leg Levitt & Vingren
22 Strength: Alcohol During Recovery Alcohol delayed recovery Men and women Squat, leg press, and knee extension Drink: 60 min post exercise 0.0 g dl g dl g dl -1 Haugvad et al, 2014
23 Power: Alcohol During Recovery No effect of alcohol Squats (men) 6 sets of 10 80% 1RM Power tests High pull (HP) Vertical jump (VJ) Noon (Pre) & 7am (AM) BAC: ~0.11 g dl -1 Only slight soreness Idemudia and Vingren., 2012 % PRE-ALC PRE-PLA High Pull Power AM-ALC AM-PLA Vert Jump Power
24 Alcohol intoxication after exercise (during recovery) Summary on effect of alcohol: Strength only when muscle damage is present in men Strength and power w. limited muscle damage Alcohol might affect muscle recovery Gender difference appear to exist Alcohol dose appears important Extent of muscle damage appears important
25 Acute Physiological Effects of Alcohol Does alcohol impact processes important to exercise recovery?
26 Acute effect of alcohol (no exercise) Protein synthesis Leucine stimulation Protein degradation Alcohol likely affects signals for protein synthesis and NOT degradation Vary et al., 2008
27 Myofibrillar fractional synthetic rate (Endurance + resistance exercise) Men Leg extensions (5x8) Cycling: From 2 to 8 hr after exercise 30 63% VO 2max Sprints (10x30s) Whey protein (25 g) Alcohol (1.5 g kg -1 ) over 2 hr Parr et al., 2014
28 Signaling for Protein Synthesis Spiering et al., 2009
29 Acute effect of alcohol (no exercise) Signals for Protein Synthesis Testosterone in men in women dose dependent Androgen receptor Unknown Protein synthesis Alcohol AMPK TSC1/2 mtor S6K1 4E-BP1 Translation initiation, peptide elongation, Protein synthesis
30 Acute effect of resistance exercise (no alcohol) Signals for Protein Synthesis Testosterone in men in women Androgen receptor in men (3hr) in women (1hr) All are time dependent Protein synthesis S6K1 TSC1/2 mtor RE Akt 4E-BP1 Translation initiation, peptide elongation, Protein synthesis
31 What are the combined effects? (Alcohol + RE) Signals for Protein Synthesis Alcohol AMPK RE Akt TSC1/2 mtor S6K1 4E-BP1 Translation initiation, peptide elongation, Protein synthesis
32 Acute Effects of Alcohol: mtor signaling Men and Women 6x10 squats 80% 1RM p-mtor MEN Alcohol Placebo WOMEN Alcohol (1.09 g kg -1 ) BAC: ~0.11 g dl -1 4E-BP1 p-s6k1 MEN Alcohol Placebo WOMEN Duplanty & Vingren, in Press
33 Acute Effects of Alcohol: mtor signaling Men Leg extension (5x8) Cycling: 30 63% VO 2max Sprints (10x30s) Whey protein (25 g) Alcohol (1.5 g/kg) over 2 hr 4E-BP1 Protein synthesis p-s6k1 p-mtor Parr et al., 2014
34 Acute Effects of Alcohol: Testosterone response Men 6x10 squats 80% 1RM BAC: 0.09 g/dl Alcohol (1.09 g/kg) Effect of alcohol Alcohol Placebo Testosterone (total & free) Estradiol or SHBG Testosterone could be due to change in androgen receptor Vingren et al., 2013
35 Acute Effects of Alcohol: Testosterone response Preliminary results (n=6) Women 6x10 squats 80% 1RM BAC: ~0.11 g/dl Alcohol (1.09 g/kg) Effect of alcohol Total Testosterone Could be due to change in androgen receptor Total Testosterone Alcohol Placebo PRE IP min Budnar & Vingren
36 Acute Effects of Alcohol: Androgen Receptor Response Men and women 6x10 squats 80% 1RM BAC: ~0.11 g/dl Alcohol (1.09 g/kg) Vingren et al. Arbitrary units Arbitrary units ALC PLA PRE +3Hr +5hr ALC MEN PLA WOMEN p=0.062 * * * PRE +3Hr +5hr
37 Acute Effects: LPS Stim. Cytokines IL-6 (pro-inflammatory) Men and women 6x10 squats BAC: ~0.11 g/dl Alcohol (1.09 g/kg) (con x time) η p2 = IL-8 (chemokine) (con x time) η p2 = Levitt & Vingren, 2016 PRE 3h 5h
38 Summary: Acute Effects of Alcohol Without exercise (males and females): Protein synthesis Protein degradation Signals that promote protein synthesis Signals that inhibit protein synthesis On resistance exercise-induced responses: Protein synthesis (men, combined RE and cycling) mtor pathway signaling (men but not women) Testosterone late in recovery (men, maybe women) AR response (men, maybe women) IL-6 & IL-8 (men and women)
39 Could alcohol impact long-term training adaptations?
40 Chronic Effects: Muscle size Myopathy (muscle wasting) Specific to type II fibers Likely due to protein synthesis Not caused by inactivity Not caused by diet (other than alcohol) Preedy et al., 2003
41 Acute effect of alcohol (no exercise) Alcohol Protein synthesis signals In males Not clear in females Mediation by resistance training is unknown AMPK TSC1/2 mtor S6K1 4E-BP1 Protein synthesis
42 Male rats squat Chronic Effects of Alcohol: Resistance Training & AR 6-week training program 3 sessions per week Alcohol: 35% of total kcal Vingren et al., 2005
43 Chronic Effects of Alcohol: Androgen Receptor Vingren et al., 2005 Soleus Rectus EDL
44 Summary: Chronic Effects of Alcohol Without exercise (males only) Protein synthesis (no exercise) Signals that promote protein synthesis Signals that inhibit protein synthesis Resistance training Androgen receptor (males) Effects are mainly type II fiber specific
45 Future Questions: Alcohol & Exercise Mechanisms for gender differences Dose effects Protein synthesis and signaling after exercise Mechanisms for effect on neuromuscular and endocrine system Mode of exercise Benefits of exercise training
46 Summary: Alcohol & Exercise High(er) use in physically active (men and women) Effect on performance: Exercise during intoxication Endurance type exercise Strength Exercise during hangover Endurance type exercise Strength & power Alcohol ingestion during recovery Strength recovery only when muscle damage is present -in men but not women
47 Summary: Alcohol & Exercise Effects on physiological responses to exercise Acute use Protein synthesis and signaling (no exercise) mtor pathway signaling (men but not women) Total and free testosterone during recovery (men) Cytokines (IL-6 & IL-8) (altered inflammatory capacity) AR (men but not women) Chronic use Type II fiber myophathy (no exercise) Protein synthesis and signaling (no exercise, male only) AR (fiber type dependent, male)
48 Alcohol & Exercise: A popular cocktail, but do they mix? Well, it depends on the circumstances jakob.vingren@unt.edu
49 Faculty Collaborators on Alcohol David Hill, PhD Brian McFarlin, PhD Lymperis Koziris, PhD William Kraemer, PhD Current and former students Research Harsh Buddhadev, PhD Anthony Duplanty, PhD Hui-Ying Luk, MS Ronald Budnar, MS Danielle Levitt, MS Alex Fernandez, MS Nosa Idemudia, MS
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