Effects of Repeated-Sprint Training in Hypoxia on Tennis-Specific Performance in Well-Trained Players
Résumé
This study examined the physiological, physical and technical
responses to repeated-sprint training in normobaric hypoxia
[RSH, inspired fraction of oxygen (FiO2) 14.5 %] vs. normoxia
(RSN, FiO2 20.9 %). Within 12 days, eighteen well-trained tennis
players (RSH, n = 9 vs. RSN, n = 9) completed five specific repeated-
sprint sessions that consisted of four sets of 5 maximal
shuttle-run sprints. Testing sessions included repeated-sprint
ability and Test to Exhaustion Specific to Tennis (TEST). TEST’s
maximal duration to exhaustion and time to attain the ‘onset
of blood lactate accumulation’ at 4 mMol.L − 1 (OBLA) improvements
were significantly higher in RSH compared to RSN.
Change in time to attain OBLA was concomitant with observations
similar in time to the second ventilatory threshold. Significant
interaction (P = 0.003) was found for ball accuracy with
greater increase in RSH ( + 13.8 %, P = 0.013) vs. RSN (–4.6 %,
P = 0.15). A correlation (r = 0.59, P < 0.001) was observed between
change in ball accuracy and TEST’s time to exhaustion.
Greater improvement in some tennis-specific physical and
technical parameters was observed after only 5 sessions of RSH
vs. RSN in well-trained tennis players.
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