O'Shea Simone D, Taylor Nicholas F, Paratz Jennifer D
Physiotherapy Department, Wodonga Regional Health Service, Wodonga, Australia.
Arch Phys Med Rehabil. 2007 Jan;88(1):32-6. doi: 10.1016/j.apmr.2006.10.002.
To evaluate the retest reliability and quantify the degree of measurement error when measuring isometric muscle strength with a hand-held dynamometer for people with chronic obstructive pulmonary disease (COPD).
Retest reliability of hand-held dynamometry for 4 muscle groups was assessed on 2 occasions separated by a 2-week interval.
Community rehabilitation center.
Eight men and 4 women (mean age +/- standard deviation, 71.4+/-10.3y) with moderately severe COPD (percentage of predicted forced expiratory volume in 1 second, 41.5%+/-17.7%).
Not applicable.
Muscle strength (in kilograms). Statistical analysis was conducted by calculating intraclass correlation coefficients and 95% confidence intervals for both group and individual scores.
All reliability coefficients were greater than .79. Muscle strength would need to increase by between 4% and 18% in groups of people with COPD and between 34% and 58% in a person with COPD to be 95% confident of detecting real changes.
Hand-held dynamometry is suitable for monitoring change in muscle strength and testing hypotheses for groups of people with COPD. However, hand-held dynamometry is not likely to detect changes in muscle strength for a person with COPD.
评估使用手持测力计测量慢性阻塞性肺疾病（COPD）患者等长肌力时的重测信度，并量化测量误差程度。
对4个肌肉群进行手持测力法的重测信度评估，两次测量间隔2周。
社区康复中心。
8名男性和4名女性（平均年龄±标准差，71.4±10.3岁），患有中度重度COPD（1秒用力呼气量占预计值百分比，41.5%±17.7%）。
不适用。
肌肉力量（以千克为单位）。通过计算组内相关系数和组及个体得分的95%置信区间进行统计分析。
所有信度系数均大于0.79。COPD患者组肌肉力量需增加4%至18%，个体患者需增加34%至58%，才能有95%的把握检测到实际变化。
手持测力法适用于监测COPD患者组的肌肉力量变化和检验假设。然而，手持测力法不太可能检测到个体COPD患者的肌肉力量变化。
