J Athl Train. 1997 Apr;32(2):127-35.
To examine the effects of a 6-week strength and proprioception training program on clinical measures of balance, and to introduce characteristics of a single-case research design that may be beneficial to the athletic training profession as both a research and a clinical tool.
A multiple baseline design across subjects was used to assess the effects of the intervention. The training program was performed three times a week and consisted of manual muscle strengthening and proprioception training for the plantar flexor, dorsiflexor, inversion, and eversion muscle groups.
Three subjects (age = 17.6 +/- 1.24 yr, wt = 78.6 +/- 1.07 kg, ht = 186.2 +/- 4.3 cm) who had previously sustained first-degree lateral ankle sprains.
Dynamic balance was tested three times a week using a single-plane balance board (SPBB). Each subject was tested for two double-leg conditions (forward/backward, right/left) and one single-leg condition (forward/backward) for each extremity. The dependent variable was the number of times that the balance board made contact with the floor. Visual inspection was used to evaluate whether the treatment resulted in a change of performance.
Although the intervention did not produce obvious improvements in balance for all evaluation criteria for all testing conditions, it is apparent that the strength and proprioception training program positively influenced all three subjects' ability to balance dynamically on an SPBB. A change in mean scores from baseline to intervention phase was evident for all testing conditions. However, a change in slope and level was not as apparent for all testing conditions, especially the single-leg conditions.
The results revealed that the strength and proprioception training program produced improvements in the ability to balance as assessed dynamically on an SPBB.
检验 6 周力量和本体感觉训练计划对平衡临床测量的影响，并介绍一种可能对运动训练专业有益的单一案例研究设计的特点，这种设计既是一种研究工具，也是一种临床工具。
采用跨受试者的多基线设计来评估干预效果。训练计划每周进行三次，包括对足底屈肌、背屈肌、内翻和外翻肌群进行手动肌肉强化和本体感觉训练。
3 名受试者（年龄=17.6±1.24 岁，体重=78.6±1.07kg，身高=186.2±4.3cm）曾遭受过一级外侧踝关节扭伤。
每周三次使用单平面平衡板（SPBB）测试动态平衡。每位受试者均进行两种双腿条件（前后、左右）和一种单腿条件（前后）的测试。因变量是平衡板接触地面的次数。视觉检查用于评估治疗是否导致性能变化。
尽管干预措施并未明显改善所有测试条件下的所有平衡评估标准，但很明显，力量和本体感觉训练计划对所有三个受试者在 SPBB 上动态平衡的能力产生了积极影响。所有测试条件下的平均分数从基线到干预阶段都有明显变化。然而，所有测试条件的斜率和水平变化并不明显，尤其是单腿条件。
结果表明，力量和本体感觉训练计划在 SPBB 上动态评估平衡能力方面有所提高。
