Abstract

Background:

Sensorimotor adaptation, or the capacity to adapt movement to changes in the moving body or environment, is a form of motor learning that is important for functional independence (e.g., regaining stability after slips or trips). Aerobic exercise can acutely improve many forms of motor learning in healthy adults. It is not known, however, whether acute aerobic exercise has similar positive effects on sensorimotor adaptation in stroke survivors as it does in healthy individuals.

Objective:

The aim of this study was to determine whether acute aerobic exercise promotes sensorimotor adaptation in people post stroke.

Methods:

A single-blinded crossover study. Participants attended two separate sessions, completing an aerobic exercise intervention in one session and a resting control condition in the other session. Sensorimotor adaptation was assessed before and after each session, as was brain derived neurotrophic factor. Twenty participants with chronic stroke completed treadmill exercise at mod-high intensity for 30 minutes.

Results:

Acute aerobic exercise in chronic stroke survivors significantly increased sensorimotor adaptation from pre to post treadmill intervention. The 30-minute treadmill intervention resulted in an averaged 2.99 ng/ml increase in BDNF levels (BDNF pre-treadmill = 22.31 + /–2.85 ng/ml, post-treadmill was = 25.31 + /–2.46 pg/ml; t(16) = 2.146, p = 0.048, cohen’s d = 0.521, moderate effect size).

Conclusions:

These results indicate a potential role for aerobic exercise to promote the recovery of sensorimotor function in chronic stroke survivors.

中文翻译：

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有氧运动对慢性脑卒中感觉运动适应的急性影响

摘要

背景：

感觉运动适应，或使运动适应运动身体或环境变化的能力，是一种运动学习形式，对功能独立很重要（例如，在滑倒或绊倒后恢复稳定性）。有氧运动可以显着改善健康成年人的多种运动学习方式。然而，尚不清楚急性有氧运动是否对中风幸存者的感觉运动适应具有与健康个体相似的积极影响。

客观的：

本研究的目的是确定急性有氧运动是否能促进中风后人的感觉运动适应。

方法：

一项单盲交叉研究。参与者参加了两个单独的会议，在一个会议上完成有氧运动干预，在另一个会议上完成休息控制条件。感觉运动适应性在每次会议之前和之后进行评估，脑源性神经营养因子也是如此。20 名患有慢性中风的参与者完成了 30 分钟的高强度跑步机运动。

结果：

慢性中风幸存者的急性有氧运动显着增加了跑步机干预前后的感觉运动适应。30 分钟的跑步机干预导致 BDNF 水平平均增加 2.99 ng/ml（跑步机前 BDNF = 22.31 + /–2.85 ng/ml，跑步机后为 = 25.31 + /–2.46 pg/ml；t(16 ) = 2.146, p  = 0.048, cohen's d  = 0.521, 中等效应量)。

结论：

这些结果表明有氧运动对促进慢性中风幸存者感觉运动功能恢复的潜在作用。