When do you take a meal during the table tennis tournament?

Transcription

1 Work shop 1, 29 th Feb. 2016, 17:00 18:00 When do you take a meal during the table tennis tournament? Advice from the sports dietitian Michiyo KIMURA, Ph.D. 1),2) 1) Takasaki University of Health and Welfare 2) JTTA Sports Science and Medicine Committee Mizuho Adachi 2), Shiro Matsuo, M.D. 2)

2 When do you take a meal during the table tennis tournament? Advice from the sports dietitian Do you know the best way to take a meal during the table tennis tournament? Do you have any eating strategies to win the game? Can you conduct the best dietary strategies? How do you make strong body?

3 Contents 1 Food guide for athletes 2 The optimal pre, duringand after competition meals 3 Food environment in table tennis tournament 4 Future perspective

4 Contents 1 Food guide for athletes 2 The optimal pre, duringand after competition meals 3 Food environment in table tennis tournament 4 Future perspective

5 Food Guide For Athletes Place mat (six dishes) Japan Sports Association Sports Shokuiku Project

6 Breakfast and supper of junior player A

7 Breakfast and supper of junior player B

8 Physical fitness levels A team players B team players A team players Abdominal muscle test Sit and reach teat Softcall throw Standing broad jump 50m sprint time B team players Repetitive sideways jump 20m shullte run test

9 Contents 1 Food guide for athletes 2 The optimal pre, duringand after competition meals 3 Food environment in table tennis tournament 4 Future perspective

10 Glycogen and Energy Starch Complex carbohydrate Endurance Recovery Glucose Glycogen Energy Concentration

11 When and what players should eat 6:00 7:00 before competition first game 10: hours Break fast on the day of the competition High carbohydrate diet Liver and muscle glycogen Exercise performance

12 The effect of the time of carbohydrate intake on muscle glycogen recovery after exercise. Glycogen synthesis (μmol/g/wet wt) Immediately after exercise CHO(2g/kg/BW) 2hour after exercise CHO (2g/kg/BW) JL Ivy et al Journal of Applied Physiology, 64, p Muscle glycogen synthesis after exercise effect of time of carbohydrate ingestion

13 How much foods athlete should take to restore the glycogen levels in muscles immediately after exercise Body weight Steamed rice White bread Pasta = g = 60g = g Male 50 70kg g g g Female 40 60kg g g g

14 Timing of supplementation before and after competition 10:00 12:00 13:30 16:30 20:00 How long players have between the matches. More than 30min More than 60min More than 120min Not to eat much Energy gel Sports drink Fruits Energy bar Sponge cake Light meal (Rice ball) Sandwich

15 What players should intake in order to recover the muscle glycogen as fast as possible after match.

16 J Appl Physiol., 72, 1992 Carbohydrate protein complex increases the rate of muscle glycogen recover after exercise Muscle glycogen resynthesis rate (μmol/g protein/4h) p<0.05 p<0.05 p<0.05 CHO-PRO CHO PRO CHO: 112g/2h (0.77g/kg/h) PRO: 40.7g/2h(0.28g/kg/h)

17 Muscle glycogen concentrations immediately after exercise oral administration of glucose and fat complex Muscle glycogen concentration (μmol/g tissue) CHO p<0.05 CHO FAT Exercise: 30min swimming Immediately after exercise CHO(2mg/g BW) CHO+Fat (2mg/g BW ) After 60min muscle glycogen concentration Concentration immediately after exercise (Terada&Urashima 2015)

18 CHO (1g/body weight) + Protein and/or Fat Rapid muscle glycogen recovery after exercise

19 Contents 1 Food guide for athletes 2 The optimal pre, duringand after competition meals 3 Food environment in table tennis tournament 4 Future perspective

20 Food environment Dining area Food sanitation (hygiene) Convenience Nutrition education Eating schedule Meal serving Nutrition balance Safety Timing Functional Social support Instrumental Informational Emotional Appraisal Environment Norms Customs and Rules of team Structural Social support Family members Dietitian Team mate Director Coach Doctor Trainer

21 Background Table tennis players usually have to repeat several matches in a day in international tournament. compete late into the night Especially junior players are still in the stage of growth & development So players are required to have adequate nourishment & rest.

22 purpose The purposes of this study were therefore to survey current food environments in junior tournament to gather information to make new guideline for junior players on food environments in international competition.

23 Methods We accompanied the Japanese cadet and junior team (13 players) at one of the junior and cadet open, which was held in Match schedules and rest time between the matches were surveyed. In addition, we did interview survey about dietary intake state of the Japanese junior players.

24 Results Numbers of Matches Average 19±5 Day Player A B C D E F G H I J K L M Total matches male female cadet junior

25 Results Numbers of Games Average 74±17 Player Day A B C D E F G H I J K L M Total games male female cadet junior

26 Estimated Energy Expenditure during matches Player A B C D E F G H I J K L M Day Ave EE Average 645±137kcal male female cadet junior

27 Rest Time Between the Matches (E Player Day 5) Match Number Start Time Match Type Number of Games Match Time Rest Time Between the Matches :00 10:30 11:30 12:15 13:45 14:45 15:45 16:45 17:30 CD CS CS CD CD CS CS CD CS Average Time = Only 40 min CD=Cadet Doubles CS=Cadet Singles

28 Time Schedule of the Circuits (Start and End Time) Number Date Day 1 Day 2 Day 3 Day 4 Day 5 1 Aug :00 20:00 10:00 18:30 10:00 20:30 10:00 18:00 2 Aug :30 20:30 9:30 18:30 9:00 21:00 9:00 20:15 10:00 19:00 3 Aug :00 19:00 9:00 18:30 9:00 18:45 9:00 18:40 4 Aug :00 21:00 10:00 20:15 9:00 22:00 10:00 20:00 10:00 21:00 5 Aug 6 9 9:00 19:00 9:00 18:50 9:00 19:15 10:00 17:00 6 Aug :00 20:30 10:00 21:00 9:30 22:05 9:30 22:15 10:00 18:00 7 Jun :00 21:30 9:00 19:00 9:00 20:40 9:00 20:20 10:00 18:00 8 Jun :25 21:10 9:30 19:55 10:00 18:15 9 Jun :00 22:00 9:00 21:00 9:00 21:00 9:00 21:00 9:30 20:00 10 May :00 20:15 9:00 21:00 9:00 22:30 9:00 22:30 9:00 18:30 11 May :00 20:00 10:00 20:30 10:00 20:30 9:00 19:30 12 May :00 20:00 10:00 20:00 10:00 20:50 10:00 19:10 10:00 18:30 13 May :00 20:00 9:00 20:30 9:00 19:45 9:00 17:45 14 May :00 20:00 9:00 20:30 9:00 21:15 9:00 20:30 9:00 20:30 15 Apr :00 20:40 9:30 21:30 9:00 22:15 9:00 22:30 9:00 19:00 16 Apr 3 6 9:00 17:30 9:00 17:45 9:00 20:00 9:00 18:15 17 Apr 3 7 9:30 21:00 9:00 19:00 9:00 21:00 9:30 20:15 9:30 20:00 18 Apr 1 5 9:00 20:50 9:00 18:15 9:00 20:30 9:00 20:30 9:00 21:30 19 Mar :00 20:30 10:00 20:00 9:00 21:30 9:00 21:30 10:00 20:00 20 Mar 4 8 9:00 20:00 9:00 19:45 9:00 20:30 9:00 19:30 9:00 21:15 21 Feb 28 Mar 3 9:00 20:30 9:00 20:30 9:00 21:00 9:00 17:30 22 Feb :00 19:15 9:00 19:45 9:00 21:40 9:00 18:50 23 Feb :00 22:00 10:00 19:00 9:00 20:10 9:00 21:00 9:00 21:00 24 Feb :00 22:00 10:00 21:00 10:00 20:00 9:00 20:00 9:30 20:00

29 Conclusion Since the match schedules seem to be very tight in international tournament, players sometime have difficulty in having adequate dietary intake and have tendency to be energy deficient.

30 Contents 1 Food guide for athletes 2 The optimal pre, duringand after competition meals 3 Food environment in table tennis tournament 4 Future perspective

31 Future Perspective 1. It is necessary for players to finish the last match until 20:00 p.m. If they will have to compete next day, they have to finish the last match earlier. 2. Enough rest time should be scheduled.

32 Future Perspective The organizer should 3. locate the dining hall close to competition hall. It is desirable for players to be able to walk within 10 min to dining hall. 4. establish the cafeteria in the competition hall if players are not able to have the meal time in the schedule and /or to finish the last match until 20:00 p.m.

33 Contents 1 Food guide for athletes 2 The optimal pre, duringand after competition meals 3 Food environment in table tennis tournament 4 Future perspective

34 Thank you very much! u.ac.jp

35