In:
International Journal of Sports Physiology and Performance, Human Kinetics, Vol. 11, No. 8 ( 2016-11), p. 1060-1066
Abstract:
To investigate the effect of repeated use of active recovery during a 4-d shock microcycle with 7 high-intensity interval-training (HIT) sessions on markers of fatigue. Methods: Eight elite male junior tennis players (age 15.1 ± 1.4 y) with an international ranking between 59 and 907 (International Tennis Federation) participated in this study. After each training session, they completed 15 min of either moderate jogging (active recovery [ACT]) or passive recovery (PAS) with a crossover design, which was interrupted by a 4-mo washout period. Countermovement-jump (CMJ) height, serum concentration of creatine kinase (CK), delayed-onset muscle soreness (DOMS), and perceived recovery and stress (Short Recovery and Stress Scale) were measured 24 h before and 24 h after the training program. Results: The HIT shock microcycle induced a large decrease in CMJ performance (ACT: effect size [ES] = –1.39, P 〈 .05; PAS: ES = –1.42, P 〈 .05) and perceived recovery (ACT: ES = –1.79, P 〈 .05; PAS: ES = –2.39, P 〈 .05), as well as a moderate to large increase in CK levels (ACT: ES = 0.76, P 〉 .05; PAS: ES = 0.81, P 〉 .05), DOMS (ACT: ES = 2.02, P 〈 .05; PAS: ES = 2.17, P 〈 .05), and perceived stress (ACT: ES = 1.98, P 〈 .05; PAS: ES = 3.06, P 〈 .05), compared with the values before the intervention. However, no significant recovery intervention × time interactions or meaningful differences in changes were noted in any of the markers between ACT and PAS. Conclusions: Repeated use of individualized ACT, consisting of 15 min of moderate jogging, after finishing each training session during an HIT shock microcycle did not affect exercise-induced fatigue.
Type of Medium:
Online Resource
ISSN:
1555-0265
,
1555-0273
DOI:
10.1123/ijspp.2015-0494
Language:
Unknown
Publisher:
Human Kinetics
Publication Date:
2016
SSG:
31
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