Effect of somatic maturity on the aerobic and anaerobic adaptations to sprint interval training

AbstractThe purpose of this study was to assess the maturity ‐related differences in the aerobic and anaerobic adaptations to sprint interval training (SIT) among youth male athletes. Twenty‐seven youth male athletes were assessed for years from peak height velocity (PHV) and classified into prepubescent (PRE,n = 7, years from PHV = −2.21 ± 0.47 years), peripubescent (PERI,n = 10, years from PHV = 0.25 ± 0.88 years), and postpubescent (POST,n = 10, years from PHV = 2.81 ± 0.50 years) groups based on their years from estimated peak height velocity. Participants completed a ramp exercise protocol on a cycle ergometer to determine maximal aerobic power, maximal oxygen consumption (VO2peak), and fatigue thresholds. Following baseline, all participants completed a 4 ‐week SIT program that consisted of eight total training sessions. During each session, participants completed repeated 20‐s sprints on a cycle ergometer against a resistance of 7.5% of body mass. The number of sprints per sessions increased from four in session 1 to seven in session 7, with fou r sprints in session 8. Peak and mean power from sessions 1 and 8 were recorded. All participants completed a post‐testing ramp exercise protocol that mirrored baseline. Maximal aerobic power increased (p <  .001) across all groups from baseline (212.61 ± 57.45 W) to post‐testing (223.24 ± 58.90 W); however, VO2peak only increased in POST (3.31  ± 0.43 to 3.54 ± 0.43 L ...
Source: Physiological Reports - Category: Physiology Authors: Tags: ORIGINAL RESEARCH Source Type: research