ABSTRACT

We aimed to assess the test-retest reliability of five muscle strength and physical function tests in healthy children. Forty-one children (6–9 years) were tested three times 4–10 days apart. The test protocol included maximal isometric leg press, hand grip strength, squat jump, long jump, and a 30-sec sit-to-stand test (STST). When comparing test round 1 with 2 and 2 with 3, we found good-to-excellent retest reliability of leg press (intraclass correlation coefficient, ICC = 0.87 and ICC = 0.94), hand grip (ICC = 0.90 and ICC = 0.94), and long jump (ICC = 0.86 and ICC = 0.87). Initially, there was a moderate reliability of squat jump (ICC = 0.71), which was improved to ICC = 0.82 (round 2–3). Similarly, reliability of STST was improved from low (ICC = 0.63) to moderate reliability (ICC = 0.78). We conclude that leg press, hand grip, squat jump, and long jump tests are reliable measurements of children’s muscle strength and function, even without familiarization. Contrary, STST requires familiarization to ensure adequate reliability.

摘要

我们旨在评估健康儿童的五项肌肉力量和身体功能测试的重测信度。41 名儿童（6-9 岁）接受了 3 次测试，间隔 4-10 天。测试方案包括最大等长腿举、握力、蹲跳、跳远和 30 秒的坐立测试 (STST)。在比较第一轮与 2 轮和 2 轮与 3 轮测试时，我们发现腿部推举（组内相关系数，ICC  = 0.87 和ICC  = 0.94）、手握（ICC  = 0.90 和ICC  = 0.94）的复测可靠性从良好到优秀，和跳远（ICC  = 0.86 和ICC  = 0.87）。最初，深蹲跳的可靠性中等（ICC = 0.71)，提高到ICC  = 0.82（第 2-3 轮）。同样，STST 的可靠性从低（ICC  = 0.63）提高到中等可靠性（ICC  = 0.78）。我们得出结论，即使不熟悉，腿举、握力、蹲跳和跳远测试也是儿童肌肉力量和功能的可靠测量。相反，STST 需要熟悉以确保足够的可靠性。