摘要：Huang HN, Yamamoto T. Effects of Detraining on the TrainingInduced Balance Ability in Humans. JEPonline 2014;17(1):50-57. In our previous study of balance training, we found that more than 2 d⋅wk-1 balance training frequency for 8 wks with 10 consecutive trials augmented balance ability in healthy young adults. However, it is unclear whether this training-induced balance ability is maintained or not for a long duration after the cessation of balance training (detraining). The purpose of this study was to investigate the effects of detraining on the training-induced balance ability in humans. The values of training-induced effects at just post-training in our previous study were used as starting point of detraining. Thirty-five male students (mean age, 21.2 ± 0.6 yrs) were divided into 4 groups: (a) non-training (control) group (n = 9); (b) 1 d·wk-1 training (W1; n = 9); (c) 2 d·wk-1 training (W2; n = 10); and (d) 3 d·wk-1 training (W3; n = 7). The subject standing on an unstable seesaw-like platform was required to maintain balance as long as possible at each trial, and then the balance keeping time (BKT) was recorded together with the changes in the angle of an inclining platform and head movement acceleration of the subject’s forehead. The training period was 8 wks, which was followed by a 21-wk detraining period. The findings indicate that the significant training-induced balance ability (ΔBKTs) in W2 and W3 groups at post-training was maintained for at least 21 wks even after the termination of training. We also found no significant change in the magnitude of angular velocity of platform rotation during detraining. However, training-induced effects for head movements disappeared during detraining.
