The purpose was to examine and compare the longer-term generalization between 2 different practice dosages for a single-session treadmill slip-perturbation training when reexposed to an overground slip 6 months later. A total of 45 older adults were conveniently assigned to either 24 or 40 slip-like treadmill perturbation trials or a third control group. Overground slips were given immediately after initial training, and at 6 months after initial training in order to examine immediate and longer-term effects. The performance (center of mass stability and vertical limb support) and fall percentage from the laboratory-induced overground slips (at initial posttraining and at 6 mo) were measured and compared between groups. Both treadmill slip-perturbation groups showed immediate generalization at the initial posttraining test and longer-term generalization at the 6-month retest. The higher-practice-dosage group performed significantly better than the control group (P < .05), with no difference between the lower-practice-dosage and the control groups at the 6-month retest (P > .05). A single session of treadmill slip-perturbation training showed a positive effect for reducing older adults’ fall risk for laboratory-induced overground slips. A higher-practice dosage of treadmill slip perturbations could be more beneficial for further reducing fall risk.

目的是检查和比较 6 个月后重新暴露于地面滑移时单次跑步机滑移扰动训练的 2 种不同练习剂量之间的长期概括。总共 45 名老年人被方便地分配到 24 或 40 个滑动式跑步机扰动试验或第三个对照组。初次训练后立即进行地上滑移，并在初次训练后 6 个月进行地面滑移，以检查即时和长期效果。测量并比较各组之间的表现（质心稳定性和垂直肢体支撑）和实验室引起的地面滑倒的跌倒百分比（训练后初始和 6 个月）。两个跑步机滑动扰动组在最初的训练后测试中都表现出立即泛化，在 6 个月的重新测试中表现出长期泛化。较高练习剂量组的表现显着优于对照组 ( P  < .05)，而较低练习剂量组与对照组在 6 个月重新测试时没有差异 ( P  > .05)。单次跑步机滑移扰动训练对降低老年人因实验室引起的地面滑倒而跌倒的风险具有积极作用。跑步机滑动扰动的练习剂量较高可能更有利于进一步降低跌倒风险。