AI Article Synopsis
- The study aimed to assess how a high-intensity shuttle-run training in low-oxygen conditions (hypoxia) affects soccer players' repeated sprint ability (RSA) and Yo-Yo intermittent recovery (YYIR) performance.
- Participants, consisting of 14 soccer players, were split into hypoxia and normal oxygen training groups and completed 8 training sessions over 12 days.
- Results showed that both RSA fatigue-slope and YYIR performance improved regardless of oxygen levels, while oxidative stress decreased, which correlated positively with these performance gains.
Article Abstract
The purpose of this study was to investigate the effect of a maximal shuttle-run shock microcycle in hypoxia on repeated sprint ability (RSA, 6 × 40-m (6 × 20 m back and forth, 20" rest in between)), Yo-Yo-intermittent-recovery (YYIR) test performance, and redox-status. Fourteen soccer players (age: 23.9 ± 2.1 years), randomly assigned to hypoxia (∼ 3300 m) or normoxia training, performed 8 maximal shuttle-run training sessions within 12 days. YYIR test performance and RSA fatigue-slope improved independently of the hypoxia stimulus (p < 0.05). Training reduced the oxidative stress level (-7.9%, p < 0.05), and the reduction was associated with performance improvements (r = 0.761, ΔRSA; r = -0.575, ΔYYIR, p < 0.05).
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| http://dx.doi.org/10.1139/apnm-2014-0479 | DOI Listing |
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