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Autonomic nervous system activity and Performance in competitive swimming Synapse The Research Group Martin Garet, Nicolas Tournaire, Frédéric Roche, Renaud.

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Presentation on theme: "Autonomic nervous system activity and Performance in competitive swimming Synapse The Research Group Martin Garet, Nicolas Tournaire, Frédéric Roche, Renaud."— Presentation transcript:

1 Autonomic nervous system activity and Performance in competitive swimming Synapse The Research Group Martin Garet, Nicolas Tournaire, Frédéric Roche, Renaud Laurent, Jean-René Lacour, Jean-Claude Barthélémy, Vincent Pichot Saint-Etienne Faculté de Médecine Jacques Lisfranc Saint-Etienne Université Jean Monnet PPEH Research Group CHU Saint-Etienne Faculté de Médecine Jacques Lisfranc Université Jean Monnet UFR STAPS Clermont-Ferrand, France

2 Autonomic Nervous System - Parasympathetic - Sympathetic

3 R-R variability in the recovery phase after a strenuous physical exercise Furlan et al. (1993) Before Exercise Exercise May determine cumulated decrease Rebound

4 Exercise, cumulated fatigue Pichot V. et al., Pflügers Archiv, 2002 W1W2 W3 W4 Rest * * HF wavelets (%) W1W2W3W4 Rest * * AthletesWorkers Pichot V. et al. Med Sci Sports Exerc, 2000

5 Training. Improve performance. rest Load HRV Unfavorable Overtraining Training HRV Favorable Load Rebound Cycle Overload Pichot, Med Sci Sports Exerc, 2000 Pichot, Med Sci Sports Exerc, 2002 Pichot, Pflügers, 2002 ?

6 Kenney W.L. Exercise Physiology Current Selected Research, 1988 VO 2max, mL.kgMM -1.min -1. ln VHP (ms) ANS - Performance HRV (Ptot) VO 2max, mL.kgMM -1.min -1. Pichot V. et al. Med Sci Sports Exerc, 2002 Cross-sectionalLongitudinal

7 Study

8 ANS – Training Load ANS - Performance Group level Individual level Individual monitoring Tapering Overtraining prevention ?

9 Population - 7 regional-level swimmers (4 boys, 3 girls) ±0.5 years - 6.4±0.9 years of practice m freestyle Timing of measurements HRV W0W5W4W3W2W1 Perf RP1TPRP2 Baseline RestingTapering Training Period

10 CERT W1W2W3W4 W5 Training load % during W4 and W5 * * * * §

11 Perf 1 Perf 2 (W3)Perf 3 (W5) ±57.48%71.30±52.60% HF WT (% Perf 1) ANS evolution group level NS

12 S3 S4 S1 S7 S2 S5 S6 S4 S2 S6 S7 S3 S5 S1 Perf 1 Perf 2 (W3)Perf 3 (W5) HF WT (% Perf 1) ANS evolution individual level

13 Rest Training 5’10 5’04 = - 6 s 5’03 4’54 = - 9 s 5’10 5’16 = + 6 s 100 Relative values, HF% 148 % -35 % 254 % P1 P3 P1P3 Garet M. et al. In press, 2004 ± Rebound - Performance P2

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15 Optimize training load Optimize tapering Conclusion Highly individual - ANS answer to training load - Supercompensation - Speed of rebound Common rule: High correlation between: - ANS activity level and performance - Respective variations in ANS and in performance

16 Engineers Vincent P ICHOT David D UVERNEY Sébastien C ELLE Anestis A NTONIADIS Neurophysiologist Frédérique B ERTHOLON MD, PhD Jean-Claude B ARTHELEMY Frédéric R OCHE Frédéric C OSTES David C HARIER Jean-René L ACOUR Synapse Research Group PhD Students Nicolas D ESVIGNE Martin G ARET Marc C HARLES Sébastien C ELLE Francis D EGACHE


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