中文摘要 |
本研究的主要目的在於比較PACER、800/1600公尺跑走和最大攝氧量之同時效度,並以單因子變異數分析方法考驗PACER測驗的再測信度。本研究以34位青少年為受試者,其中20位男生(平均年齡14.35±0.88yrs,BMI為20.10±3.14)及14位女生(平均年齡13.57±1.16yrs,BMI為20.36±2.76)。利用平衡消去法讓受試者分別接受PACER測驗、800/1600公尺跑走和最大攝氧量的測試,將所得資料以皮爾遜積差相關比較PACER和800/1600公尺跑走評估最大攝氧量的同時效度,研究結果如下:一、男女受試者在PACER測驗中的同時效度分別為r=.73和.80,均高於1600和800公尺跑走的同時效度,分別為r=-.64和-.75。二、本研究所求得的PACER之級內相關係數再測信度為(r=.72,p<.05)。三、本研究以PACER為預測變項,最大攝氧量為效標變項,利用逐步迴歸選取有效變項,並求得一迴歸方程式:=0.447X1-1.577X2+41.492=V.O2max(ml.kg-1.min-1),X1=PACER測驗趟數(laps),X2=年齡本研究的結果顯示,PACER預測最大攝氧量的同時效度優於800/1600公尺跑走。因此,以PACER不會受到400公尺標準場地限制的實用性以及免除學生跑長距離測試時配速問題的方便性之優點看來,PACER應該適合當作學校測試心肺耐力的工具之一。The purpose of this study was to compare the PACER's validity with 800/1600m walk/run test. Then we purpose to validate the test-retest reliability of PACER .Thirty-four subjects completed this study(20 male, mean age:14.35±0.88yrs, BMI:20.10±3.14) and (14 male, mean age:13.57±1.16yrs, BMI:20.36±2.76). Each subjects randomized to performed the PACER, 800/1600m walk/run test and maximal exercise test through counter-balance design. Pearson's product-moment correlation was used to compare the concurrent validity of PACER test to 800/1600m walk/run test, and attempted to develop an equation for predicting VO2max. Intraclass coefficient with one-way ANOVA model was used to determine the test-retest reliability of the PACER . The results revealed that: (1) Concurrent validity of PACER was higher than the 800/1600m walk/run test.(PACER: r = .73 & .80 ; 800/1600m walk/run test : r =- .64 & -.75, p<.05). (2) Test-retest reliability of the PACER also yielded comparable results (intraclass correlation coefficient; r = .72, p<.05). (3) According to stepwise regression equation of VO2max (criterion, ml‧kg-1‧min-1) from the PACER (predictors, laps) was, VO2max = 0.447X1 - 1.577X2+41.492 ( X1=laps X2=years ). It is concluded that using PACER test estimate cardiorespiratory endurance is as valid as 800/1600m walk/run test for junior high school students. |