研究目的：本研究目的在檢驗修正式蹲站測驗評估健康年輕人心肺適能的效度。方法：本研究共招收18位受試者（男性10位，女性8位，年齡22.2±2.7歲）進行最大運動測試及修正式蹲站測驗。修正式蹲站測驗方式為讓受試者站立於蹲站測試板之底板上，雙手彎曲90度於腰側圍，開始後雙腳彎曲45度碰觸到測試板前方的固定板，同時雙手向前伸直推出後再回到起始位置完成一循環，受試者以每分鐘120次的頻率重複3分鐘，並在其後立即測量0-30秒、60-90秒及120-150秒恢復心跳，其心肺適能指標之計算分別為(l)恢復心跳總和(2)修不體重恢復心跳總和(3)修正體重之立即測量30秒恢復心跳及(4)修正身體質量指數之立即測量30秒恢復心跳。結果：利用皮爾森相關係數分析後發現，修正體重恢復心跳總和(r=-0.63)、修正體重之立即測量30秒恢復心跳(r=-0.88)、修正身體質量指數之立即測量30秒恢復心跳(r=-0.82)與最大攝氧量均具有顯著相關(p<0.01)，但恢復心跳總和並未呈顯著相關；在所有的心肺適能指標中，修正體重後之30秒恢復心跳與最大攝氧量相關程度最高。結論：修正式蹲站測驗可有效評估健康年輕成年人之心肺適能，其評估指標為標準化體重後之立即30秒恢復心跳。（物理治療2008;33(5):279-286）

Purpose: The study was to investigate the validity of the modified squat test to assess cardiopulmonary fitness in healthy young adults. Method: Eighteen subjects (10 males, 8 females, aged 22.2±2.7 years)were recruited. Each subject performed a modified squat test and a maximal exercise test to determine maximal oxygen consumption (V4O(subscript 2max)). When performing the modified squat test, the subject started at standing position with his/her elbows 90° flexed at the sides of the waist. Then, with a custom-made lightweight equipment, the subject was guided to squat down to 45° knee flexion, and at the same time, both arms pushed out. The subject repeated the sequences at a rate of 120 cycles/min for 3 minutes. Recovery heart rates(HR) were measured following the modified squat test. The fitness indices of the modified squat test, including (1)The sum of recovery HR during 0-30, 60-90 and 120-150 seconds (2)The sum of recovery HR divided by weight (3)0-30 recovery heart rate divided by weight (4)0-30 recovery heart rate divided by BMI, were tested to correlate with V4O(subscript 2max). Results: Pearson’s correlation analysis showed significant correlations (p<0.01) between the V4O(subscript 2max) (l/min)and the sum of recovery HR divided by weight (r=-0.63), 0-30 recovery heart rate divided by weight (r=-0.88) and 0-30 recovery heart rate divided by BMI (r=-0.82). No significant correlation between the V4O(subscript 2max) (l/min)and the sum of recovery HR was found. Within the fitness indices we tested, the 0-30 recovery heart rate divided by weight revealed the highest correlation. Conclusion: The modified squat test is a valid test for evaluating fitness level in healthy young individuals. The index of the modified squat test is 0-30 recovery heart rate divided by weight. (FJPT 2008;33(5):279-286)