The Relationship Between Pedometer-Determined Physical Activity Level and Body Composition in Vocational School Students.

• Main Authors: Yi-Shin Chen, 陳怡心
• Other Authors: Dr. Ray-Tai Chang
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/84114589455192205132

碩士 === 高雄師範大學 === 體育學系 === 98 === Purpose：The study evaluates the relationship between pedometer-determined physical activity level and body composition variables in vocational school students. Method：A total of 291 vocational school students, aged 15 to18 (126 males, 149 females) wore sealed pedometers for 4 consecutive days. The height, weight, waist circumference, three skinfold thicknesses, and predicted percent body fat (%BF) were measured. Independent t-test was used to test differences between the males and females. Data were examined by one-way ANOVA analysis of variance. Pearson product-moment correlation method was used to determine the relationship between physical activity level and body composition variables. Results：For the vocational school students, the number of steps per day were 12,161 ± 4,890 steps. The male physical activity level (13,699 ± 4,229 steps) was averaged significantly more than the female one (10,987 ± 5,044 steps). The physical activity level of the group aged 18 (9,988 ± 4,093 steps) differed significantly to be lower than the level of the group aged 15 (12,683 ± 2,591 steps), the group aged 16 (12,842 ± 5,651 steps), and the group aged 17 (12,255 ± 4,761 steps). The physical activity level of the 12th graders mean steps/day (10,164 ± 3,881 steps) differed significantly to be lower than the level of the 10th graders (12,850 ± 4,314 steps) and the level of 11th graders (12,993 ± 5,711 steps). The male physical activity level correlated negatively to %BF ( r = -.197). Conclusion：Males take more steps per day than females do. The group aged 18 mean steps/day differed significantly to be lower than the group aged 15, the group aged 16, and the group aged 17. The 12th graders mean steps/day differed significantly to be lower than the 10th graders and the 11th graders. The male less physical activity group may exhibit more %BF than the more physical activity group. This study supports a negative relationship between physical activity and %BF.