不同體型國小高年級男學童身體活動之比較研究
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2009
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本研究目的在比較不同體型之國小高年級男童身體活動量的差異，並探討三軸向身體活動量測量器（RT3）與身體活動記錄表所得結果之相關性。本研究以85位國小高年級男童(年齡11.84±0.57歲，體重45.5±11.6公斤)為研究對象，並以身體質量指數分為非過重組(n=52)及過重組(n=33)，本研究採用24小時身體活動記錄表記錄所有受試者之兩日身體活動量(其中一日包含一節體育課)，再分別於兩組中各徵求31位男童，於填寫紀錄表同時配帶三軸向身體活動量測量器(RT3)紀錄身體活動量。其中身體活動紀錄表以獨立樣本t考驗比較兩組整日和在校期間之身體活動量及不同運動強度(久坐、輕度、中度及重度運動)之差異，另以RT3紀錄所得比較兩組於校八小時期間、下課時間及體育課之身體活動量及不同運動強度之差異，之後以皮爾遜積差相關法考驗兩種不同身體活動量測量方法於在校期間身體活動量之相關性。研究結果：非過重組以身體活動紀錄表所量測之整日(41.0±4.7 vs. 38.4±2.8Kcal)、在校期間(17.5±2.1 vs. 15.5±1.4 Kcal)身體活動量皆顯著高於過重男童 (ｐ< .05)，且非過重組於整日(39.7±38.1 vs. 12.6±19.17min)和在校期間(26.7±16.2 vs. 10.6±12.2min)之重度運動時間均顯著多於過重組(ｐ< .05)，久坐時間均顯著少於過重組(整日: 1204.7±68.1 vs. 1233.2±54.3min；在校期間: 361.3±38.1 vs. 389.2±29min)(ｐ< .05)。另外，RT3紀錄顯示非過重男童於在校期間(21.9±3.1 vs. 15.7±2.1 Kcal)、下課時間(6.6±1.7 vs. 4.2±1 Kcal)及體育課(3.9±1.2 vs. 2.4±0.7 Kcal)身體活動量皆顯著高於過重男童(ｐ< .05)；而非過重組之中、重度運動於在校期間(中度: 17.3±8.5 vs. 8.2±4.5min；重度: 14.1±10.7 vs. 6.2±7.1min)、下課時間(中度: 9.3±5.9 vs. 4.0±3.3min；重度: 8.0±7.2 vs. 3.4±4.9min)及體育課(中度: 8.4±6.4 vs. 2.9±3.1min；重度: 6.7±6.4vs. 2.0±3.0min)皆顯著高於過重組(ｐ< .05)，久坐時間於在校期間(365.2±28 vs. 399.8±20.8min)、下課時間(30.9±18.4 vs. 48.3±13.5min)及體育課(8.4±11.0vs. 15.2±10.9min)則顯著低於過重組 (ｐ< .05) 。最後，RT3及身體活動量測量器測量學童在校期間身體活動量之結果呈高度正相關（r=0.704，p<.01）。結論：國小體型過重男學童整日、在校期間、下課時間及體育課之身體活動量皆低於非過重男童，過重男童亦較少從事中、重度身體活動。
The purposes of this study were to compare the differences of physical activity (PA) between different body type of high grade elementary boys, and to investigate the relevance of two different measurements, RT3 TRI-AXIAL accelerometer(RT3) and PA record. Eighty- five elementary boys were recruited as the subject (age 11.84 ± 0.57 years-old, weight 45.5 ± 11.6 kg), and the Body Mass Index(BMI) was used to determine the overweight (n=52) and non- overweight group (n=33). The 24 hrs PA record to record was used to measure PA level of all subject during two days (include one day with physical education class(PE)). Additionally, 31 boys of two groups volunteered to wear RT3 to record PA level. For PA record, The collected date of PA record were analyzed with t-test to compare the differences of PA level and different exercise intensity (sedentary, light(LPA), moderate(MPA), and vigorous(VPA) physical activity) of whole day and school-time between two groups. Moreover, the collected date of RT3 were used to compared the differences of PA level and different exercise intensity of two groups during 8 hrs at school, recess time and PE class, and also examined the relevance of two different measurements using Pearson product-moment correlation. Results: The PA level of whole day(41.0±4.7 vs. 38.4±2.8 Kcal) and school-time(17.5 ± 2.1 vs. 15.5 ± 1.4 Kcal) by PA record in non-overweight (NOG) significantly higher than overweight (OG) group (p< .05). The duration of vigorous PA of whole day (39.7 ± 38.1 vs. 12.6 ± 19.17 min) and school-time (26.7 ± 16.2 vs. 10.6 ± 12.2 min) for NOG is also significantly higher than OG (p< .05). Sedentary time of NOG from RT3 measure is also significantly shorter than that of OG (whole day: 1204.7 ± 68.1 vs. 1233.2 ± 54.3 min; school-time: 361.3 ± 38.1 vs. 389.2 ± 29 min) (p< .05). As energy expenditure, RT3 PA of school-time (21.9 ± 3.1 vs. 15.7 ± 2.1 Kcal), recess time(6.6±1.7 vs. 4.2 ± 1 Kcal) andPE class(3.9 ± 1.2 vs. 2.4 ± 0.7 Kcal) of NOG are significantly higher than those of OG. (p< .05). The MPA and VPA level of NOG school-time (MPA: 17.3±8.5 vs. 8.2±4.5min; VPA: 14.1±10.7 vs. 6.2±7.1min), recess time(MPA: 9.3±5.9 vs. 4.0±3.3min; VPA: 8.0±7.2 vs. 3.4±4.9min) and PE class(MPA: 8.4±6.4 vs. 2.9±3.1min; VPA: 6.7±6.4 vs. 2.0±3.0min) are significantly higher than those of OG. On the contrary, the sedentary time of NOG (school-time: 365.2±28 vs. 399.8±20.8min; recess time: 30.9±18.4 vs. 48.3±13.5min; PE class: 8.4±11.0vs. 15.2±10.9min) is significantly lower than those of OG.(p< .05). Lastly, significant correlation of PA outcomes was noted between RT3 and PA record (r=0.704, p<.01). Conclusion: The PA levels of whole day, school-time, recess time and PE of OG are less than those of NOG. The OG students are also engage in less MPA and VPA.
The purposes of this study were to compare the differences of physical activity (PA) between different body type of high grade elementary boys, and to investigate the relevance of two different measurements, RT3 TRI-AXIAL accelerometer(RT3) and PA record. Eighty- five elementary boys were recruited as the subject (age 11.84 ± 0.57 years-old, weight 45.5 ± 11.6 kg), and the Body Mass Index(BMI) was used to determine the overweight (n=52) and non- overweight group (n=33). The 24 hrs PA record to record was used to measure PA level of all subject during two days (include one day with physical education class(PE)). Additionally, 31 boys of two groups volunteered to wear RT3 to record PA level. For PA record, The collected date of PA record were analyzed with t-test to compare the differences of PA level and different exercise intensity (sedentary, light(LPA), moderate(MPA), and vigorous(VPA) physical activity) of whole day and school-time between two groups. Moreover, the collected date of RT3 were used to compared the differences of PA level and different exercise intensity of two groups during 8 hrs at school, recess time and PE class, and also examined the relevance of two different measurements using Pearson product-moment correlation. Results: The PA level of whole day(41.0±4.7 vs. 38.4±2.8 Kcal) and school-time(17.5 ± 2.1 vs. 15.5 ± 1.4 Kcal) by PA record in non-overweight (NOG) significantly higher than overweight (OG) group (p< .05). The duration of vigorous PA of whole day (39.7 ± 38.1 vs. 12.6 ± 19.17 min) and school-time (26.7 ± 16.2 vs. 10.6 ± 12.2 min) for NOG is also significantly higher than OG (p< .05). Sedentary time of NOG from RT3 measure is also significantly shorter than that of OG (whole day: 1204.7 ± 68.1 vs. 1233.2 ± 54.3 min; school-time: 361.3 ± 38.1 vs. 389.2 ± 29 min) (p< .05). As energy expenditure, RT3 PA of school-time (21.9 ± 3.1 vs. 15.7 ± 2.1 Kcal), recess time(6.6±1.7 vs. 4.2 ± 1 Kcal) andPE class(3.9 ± 1.2 vs. 2.4 ± 0.7 Kcal) of NOG are significantly higher than those of OG. (p< .05). The MPA and VPA level of NOG school-time (MPA: 17.3±8.5 vs. 8.2±4.5min; VPA: 14.1±10.7 vs. 6.2±7.1min), recess time(MPA: 9.3±5.9 vs. 4.0±3.3min; VPA: 8.0±7.2 vs. 3.4±4.9min) and PE class(MPA: 8.4±6.4 vs. 2.9±3.1min; VPA: 6.7±6.4 vs. 2.0±3.0min) are significantly higher than those of OG. On the contrary, the sedentary time of NOG (school-time: 365.2±28 vs. 399.8±20.8min; recess time: 30.9±18.4 vs. 48.3±13.5min; PE class: 8.4±11.0vs. 15.2±10.9min) is significantly lower than those of OG.(p< .05). Lastly, significant correlation of PA outcomes was noted between RT3 and PA record (r=0.704, p<.01). Conclusion: The PA levels of whole day, school-time, recess time and PE of OG are less than those of NOG. The OG students are also engage in less MPA and VPA.
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不同體型, 身體活動量, 運動強度, 三軸向身體活動量測量器(RT3), different body images, physical activity level, exercise intensity, RT3 Tri-axial accelerometer