Determinants of the variability of heart rate measures during a competitive period in young soccer players |
| |
Authors: | Martin Buchheit Alberto Mendez-Villanueva Marc J Quod Nicholas Poulos Pitre Bourdon |
| |
Institution: | 1. Performance Enhancement and Talent Identification Section, ASPIRE, Academy for Sports Excellence, P.O. Box 22287, Doha, Qatar 2. Research Laboratory, EA 3300 ?Laboratory of Exercise Physiology and Rehabilitation?, Faculty of Sport Sciences, University of Picardie, Jules Verne, 80025, Amiens, France 3. Sport Development and Analysis, Myorobie Association, Montvalezan, France
|
| |
Abstract: | Measurements of exercise heart rate (HRex), HR recovery (HRR) and HR variability (HRV) are used as indices of training status. However, the day-to-day variability
of these indices throughout a competitive soccer period is unknown. On 14 occasions during a 3-week competition camp, 18 under
15 (U15) and 15 under 17 (U17) years soccer players performed a 5-min submaximal run, followed by a seated 5-min recovery
period. HRex was determined during the last 30 s of exercise, while HRR and HRV were measured during the first and last 3 min of the post-exercise
recovery period, respectively. U15 players displayed greater HRex (P = 0.02) and HRR (P = 0.004) compared with the U17 players, but there was no difference in HRV (P = 0.74). The mean coefficient of variation (CV) for HRex was lower than that for HRV 3.4 (90% CL, 3.1, 3.7) vs. 10.7 (9.6, 11.9)%, P < 0.001]; both were lower than that for HRR 13.3 (12.2, 14.3)%, P < 0.01]. In contrast to HRex and HRR, the CV for HRV was correlated to maximal aerobic speed (r = −0.52, P = 0.002). There was no correlation between total activity time (training sessions + matches) and CV of any of the quantified
variables. The variability of each of these measures and player fitness levels should be considered when interpreting changes
in training status. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|