BLOOD LACTATE TIME COURSE CHANGES FROM HIGH-SPEED EXERCISE
Journal Title: Medicina Sportiva - Year 2014, Vol 18, Issue 2
Abstract
Introduction: Post-workout blood lactate concentration ([BLa-]) values aid training prescriptions for athletes. Objective: To compare changes of [BLa-] from two workouts, each comprised solely of repetitions that either entailed intermittent (phasic) or continuous (tonic) force exertion, done by competitive (n = 47) and novice (n = 26) athletes. Methods: Workouts were performed on a high-speed exercise device using the athlete’s left arm. Per exercise bout [BLa-] values were measured pre- as well as at zero, five, ten, 15 and 20 minutes post-exercise. Total work (TW) values for each gender-workout-training status assignment were assessed with a 2x2x2 ANOVA with repeated measures for workout. [BLa-] data were compared with a 2(gender) x 2(workout) x 2(training status) x 6(time) ANOVA with repeated measures for workout and time. Results: TW had a two-way interaction, as the tonic bout done by competitive athletes evoked higher values than the other assignments. Inter-gender (male > female) TW differences occurred for the competitive group; none occurred for novices due to higher variability from the limited number of novice males. [BLa-] values yielded numerous significant gender x workout x training status differences over the time points examined. Conclusions: Temporal [BLa-] changes saw competitive athlete values rise sharply from zero to five minutes post-workout, while novice values changed little over the same time interval. This implies post-workout [BLa-] were impacted by the TW performed. Temporal differences regarding the time peak post-workout [BLa-] values occur may aid the design of divergent training prescriptions for competitive and novice athletes.
Authors and Affiliations
John F. Caruso, Melissa L. Mason, Jake A. Borgsmiller, Amanda G. Barbosa, Evelyn V. Gutierrez
Keywords
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- EP ID EP74236
- DOI 10.5604/17342260.1110309
- Views 76
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