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Effects of an anaerobic lactic training session on the postural stability of athletes
N Romero-Franco1, E J Martínez-López, F Hita-Contreras
1Department of Health Sciences, University of Jaén, Jaén, Spain - narf52@gmail.com.
Aim:
The aim of this study was to analyze the short-term effects of a lactate-accumulation training session on postural stability.
Methods:
Fifteen athletes performed two trainings sessions (warm-up and lactic-training session). Before training (Pre), immediately after (Post(0min)), thirty minutes later (Post(30min)) and after 24 hours (Post(24h)), athletes were subject to a bipodal and a monopodal stabilometries and a lactate blood analysis to ensure a high stress level.
Results:
Variance analysis (α=0.05) showed that, in lactic training, athletes experienced an increase of length and velocity in post(0min), a decrease at post(30min) and a new decrease at post(24h), which was lower than basal values. In monopodal stability, left-leg support showed a decrease at post(0min) in anteroposterior plane of athletes after lactic training. Also, in both monopodal supports, athletes displayed higher values of length and velocity in post(0min) after lactic training, with a progressive decrease which was significant at Post(24h), when they reached baseline.
Conclusion:
Right after anaerobic lactic training, center-of-pressure dispersion variables in bipodal stabilometry are worsened. Thirty minutes later, stabilometric variables are still deteriorated. At 24 hours, stabilometry is better than baseline. In monopodal support, dispersion values are worsened after lactic training and anteroposterior stability is impaired in left monopodal support, although the deterioration is less evident as time passes.
