Feasibility and reliability of the Brockport physical fitness test among visually-impaired adolescents in China

Abstract

Objective To investigate the feasibility and reliability of the Brockport physical fitness test in visually-impaired adolescents in China to determine its applicability in clinical practice and research.

Methods A total of 41 visually-impaired adolescents 10-17 years of age were included. Body mass index (BMI), dominant grip strength, modified curl up, trunk lift, shoulder stretch, back-saver sit-and-reach and PACER were tested twice with a 1-week interval by the same tester using the same instrument.

Results Each item in the Brockport physical fitness test was completed. The intraclass correlation coefficients for height, weight, BMI, dominant grip strength, modified curl up, trunk lift, back-saver sit-and-reach (left/right leg straight), and PACER in all subjects were 1.00, 1.00, 1.00, 0.94, 0.75, 0.78, 0.90, 0.87, 0.89, respectively. In blind subjects, the corresponding values were 1.00, 1.00, 1.00, 0.97, 0.80, 0.92, 0.89, 0.87, 0.87, respectively. In low-vision subjects, the corresponding values were 1.00, 1.00, 1.00, 0.90, 0.71, 0.40, 0.89, 0.85, 0.85, respectively. The Cohen kappa values for shoulder stretch (left/right hand on top) were 0.79 and 0.78 in all subjects, 0.72 and 0.64 in blind subjects, and 0.87 and 1.00 in low-vision subjects.

Conclusion The Brockport physical fitness test is a feasible and reliable physical fitness test for visually-impaired adolescents in China, however, trunk lift is not recommended for adolescents with low vision.

Abstract

【摘要】 目的 探究 Brockport 体能测试在中国视力障碍青少年中的可行性和可靠性, 以确定其在临床实践和研究中的适 用性。 方法 共纳人上海市盲童学校 41 名 10~17 岁视力障碍青少年, 由相同的测试人员使用相同的测试仪器对受试者 进行两次 Brockport 体能测试, 包括体质量指数 (BMI)、握力、修正版卷腹、俯卧背伸、背抓、单腿伸展坐位体前屈和 20 m 折 返跑, 测试的时间间隔为 1 周。 结果 Brockport 体能测试各项目完成率均为 100%。身髙、体重、BMI、握力、修正版卷腹、俯卧背伸、单腿伸展坐位体前屈(左/右腿伸直)和 20 m 折返跑的组内相关系数 ( ICC) 在全体受试者中依次为 1.00, 1.00, 1.00, 0.94, 0.75, 0.78, 0.90, 0.87, 0.89, 全盲受试者中为 1.00, 1.00, 1.00, 0.97, 0.80, 0.92, 0.89, 0.87, 0.87, 低视力受试者中为 1.00, 1.00, 1.00, 0.90, 0.71, 0.40, 0.89, 0.85, 0.85。背抓(左/右手在上)的简单卡帕 ( KC) 系数在全体受试者中为 0.79, 0.78, 全盲受试者中为 0.72, 0.64, 低视力受试者中为 0.87, 1.00。 结论 Brockport 体能测试在中国视障青少年中是可行且可靠的 体能测试方法, 在低视力青少年中不推荐使用俯卧背伸测试。