Center for Family and Community Medicine, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden.
BMC Musculoskelet Disord. 2011 Aug 19;12:191. doi: 10.1186/1471-2474-12-191.
Objectively assessed physical performance is a strong predictor for morbidity and premature death and there is an increasing interest in the role of sarcopenia in many chronic diseases. There is a need for robust and valid functional tests in clinical practice. Therefore, the repeatability and validity of a newly developed maximal step up test (MST) was assessed.
The MST, assessing maximal step-up height (MSH) in 3-cm increments, was evaluated in 60 healthy middle-aged subjects, 30 women and 30 men. The repeatability of MSH and the correlation between MSH and isokinetic knee extension peak torque (IKEPT), self-reported physical function (SF-36, PF), patient demographics and self-reported physical activity were investigated.
The repeatability between occasions and between testers was 6 cm. MSH (range 12-45 cm) was significantly correlated to IKEPT, (r = 0.68, P < 0.001), SF-36 PF score, (r = 0.29, P = 0.03), sex, age, weight and BMI. The results also show that MSH above 32 cm discriminates subjects in our study with no limitation in self-reported physical function.
The standardised MST is considered a reliable leg function test for clinical practice. The MSH was related to knee extension strength and self-reported physical function. The precision of the MST for identification of limitations in physical function needs further investigation.
客观评估的身体表现是发病率和过早死亡的强有力预测指标，人们对肌少症在许多慢性疾病中的作用越来越感兴趣。在临床实践中需要强大且有效的功能测试。因此，评估了新开发的最大台阶测试（MST）的重复性和有效性。
评估了最大台阶测试（MST），该测试评估 3cm 增量的最大台阶高度（MSH），在 60 名健康中年受试者中进行，其中 30 名女性和 30 名男性。研究了 MSH 的重复性以及 MSH 与等速膝关节伸展峰值扭矩（IKEPT）、自我报告的身体功能（SF-36，PF）、患者人口统计学和自我报告的身体活动之间的相关性。
两次测试和两次测试之间的重复性为 6cm。MSH（范围 12-45cm）与 IKEPT 显著相关（r=0.68，P<0.001），与 SF-36 PF 评分相关（r=0.29，P=0.03），与性别、年龄、体重和 BMI 相关。结果还表明，MSH 高于 32cm 可以区分我们研究中自我报告身体功能无障碍的受试者。
标准化的 MST 被认为是一种可靠的临床实践腿部功能测试。MSH 与膝关节伸展强度和自我报告的身体功能相关。MST 用于识别身体功能障碍的精确性需要进一步研究。
