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 (20male, 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 productmoment 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.
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 (20male, 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 productmoment 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.
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