Abstract：
This study evaluated learning and recall effects following a feedback-based retraining program. A 6-month follow-up of a quasi-randomized controlled trial was performed with and without recall. Twenty runners were assigned to experimental or control groups and completed a 3-week running program. A body-worn system collected axial tibial acceleration and provided real-time feedback on peak tibial acceleration for six running sessions in an athletic training facility. The experimental group received music-based biofeedback in a faded feedback scheme. The controls received tempo-synchronized music as a placebo for blinding purposes. The peak tibial acceleration and vertical loading rate of the ground reaction force were determined in a lab at baseline and six months following the intervention to assess retention and recall. The impacts of the experimental group substantially decreased at follow-up following a simple verbal recall (i.e., run as at the end of the program): peak tibial acceleration:-32%, p = 0.018; vertical loading rate:-34%, p = 0.006. No statistically significant changes were found regarding the retention of the impact variables. The impact magnitudes did not change over time in the control group. The biofeedback-based intervention did not induce clear learning at follow-up, however, a substantial impact reduction was recallable through simple cueing in the absence of biofeedback.
摘要：
这项研究评估了基于反馈的再培训计划后的学习和回忆效果。对一项准随机对照试验进行了6个月的随访，有或没有召回。20名跑步者被分配到实验组或对照组，并完成了为期3周的跑步计划。身体穿戴系统收集胫骨轴向加速度，并在运动训练设施中的六个跑步课程中提供有关胫骨峰值加速度的实时反馈。实验组以淡出的反馈方案接受基于音乐的生物反馈。出于致盲目的，对照组接受了节奏同步的音乐作为安慰剂。在基线和干预后六个月在实验室中确定胫骨峰值加速度和地面反作用力的垂直载荷率，以评估保留和召回率。在简单的口头回忆后的随访中，实验组的影响大幅下降(即，在程序结束时运行)：胫骨峰值加速度：-32%，p=0.018;垂直加载率:-34%,p=0.006。关于影响变量的保留没有发现统计学上的显著变化。对照组的影响幅度没有随时间变化。基于生物反馈的干预在随访时没有引起清晰的学习，然而,在没有生物反馈的情况下，通过简单的提示可以显著降低影响。
