Schwartz Rehabilitation and Movement Analysis Laboratory, Physical Therapy Department, Recanati School for Community Health Professions, Ben-Gurion University of the Negev, Be'er Sheva,Israel.
J Aging Phys Act. 2022 May 13;31(1):7-17. doi: 10.1123/japa.2021-0378. Print 2023 Feb 1.
We examined whether older adults who cycle outdoors regularly have better reactive balance control than noncycling older adults. Sixteen cyclist older adults and 24 age-, sex-, and health-matched controls who did not cycle (noncyclists) were exposed to unannounced perturbations of increased magnitudes in standing. We evaluated the strategies and kinematics employed at each perturbation magnitude. We found that cyclists exhibited a significantly higher stepping threshold, lower probability of stepping at each perturbation magnitude, and lower number of trials in which the participant needed to make a step to retain their balance. Cyclists also tended to recover balance using unloaded leg strategies in the first recovery step rather than a loaded leg strategy; they showed faster swing phase duration in the first recovery step, better controlling the displacement of center of mass than noncyclists. Older adults who cycle regularly outdoors preserve their reactive balance functions, which may reduce fall risks.
我们研究了经常在户外骑自行车的老年人是否比不骑自行车的老年人具有更好的反应性平衡控制能力。16 名骑自行车的老年人和 24 名年龄、性别和健康状况相匹配但不骑自行车的对照组老年人在站立时受到了大小不同的意外扰动。我们评估了在每个扰动幅度下使用的策略和运动学。我们发现，骑自行车的人表现出更高的踏阈，在每个扰动幅度下踏的可能性更低，以及需要踏足以保持平衡的试验次数更少。骑自行车的人在第一步恢复中也倾向于使用无负载腿策略而不是负载腿策略来恢复平衡；他们在第一步恢复中表现出更快的摆动阶段持续时间，比不骑自行车的人更好地控制了质心的位移。经常在户外骑自行车的老年人保持了他们的反应性平衡功能，这可能降低了跌倒的风险。
