Abstract：
:Our aim was to test the normality of physical activity patterns and energy expenditures in normal weight and overweight primary school students. Heart rate estimates of total daily energy expenditure (TEE), active energy expenditure (AEE), and activity patterns were made over 3 consecutive school days in healthy middle-class Tunisian children (46 boys, 44 girls, median age (25(th)-75(th)) percentile, 9.2 (8.8-9.9) years. Our cross-section included 52 students with a normal body mass index (BMI) and 38 who exceeded age-specific BMI limits. TEE, AEE and overall physical activity level (PAL) were not different between overweight children and those with a normal BMI [median values (25(th)-75(th)) 9.20 (8.20-9.84) vs. 8.88 (7.42-9.76) MJ/d; 3.56 (2.59-4.22) vs. 3.85 (2.77-4.78) MJ/d and 1.74 (1.54-2.04) vs. 1.89 (1.66-2.15) respectively]. Physical activity intensities (PAI) were expressed as percentages of the individual's heart rate reserve (%HRR). The median PAI for the entire day (PAI24) and for the waking part of day (PAIw) were lower in overweight than in normal weight individuals [16.3 (14.2-18.9) vs. 20.6 (17.9-22.3) %HRR, p < 0.001) and 24.8 (21.6-28.9) vs.26.2 (24.5-30.8) %HRR, p < 0.01], respectively. Overweight children allocated more of their day to sedentary pursuits [385 (336-468) vs 297 (235-468) min/d, p < 0.001], and less time to moderate physical activity [381(321-457) vs. 460 (380-534) min/d, p < 0.01]. Nevertheless, because of the greater energy cost of a given task, total and active daily energy expenditure did not differ from those with a normal BMI. Key pointsThe physical activity intensity for the entire day (PAI24) and for the waking part of day (PAIw) were lower in overweight than in normal weight individuals.However, because the energy cost of activity is greater in those who are overweight, they do not differ in total energy expenditure or in active energy expenditure.Normal children spend more time in moderate activity and less time in sedentary pursuits than overweight children.
journal_name
J Sports Sci Medjournal_title
Journal of sports science & medicineauthors
Zarrouk F,Bouhlel E,Feki Y,Amri M,Shephard RJsubject
Has Abstractpub_date
2009-03-01 00:00:00pages
83-8issue
1issn
1303-2968journal_volume
8pub_type
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journal_title：Journal of sports science & medicine
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更新日期：2015-08-11 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2009-12-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
doi：
更新日期：2009-03-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2012-03-01 00:00:00
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更新日期：2008-09-01 00:00:00
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journal_title：Journal of sports science & medicine
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journal_title：Journal of sports science & medicine
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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更新日期：2005-06-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2008-12-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2006-06-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2007-10-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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更新日期：2009-06-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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更新日期：2012-12-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2020-05-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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更新日期：2014-12-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章,评审
doi：
更新日期：2013-06-01 00:00:00
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pub_type： 杂志文章,随机对照试验
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更新日期：2019-06-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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更新日期：2011-03-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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更新日期：2013-12-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2007-12-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2006-07-01 00:00:00
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journal_title：Journal of sports science & medicine
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journal_title：Journal of sports science & medicine
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更新日期：2007-03-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2020-05-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2018-03-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2005-12-01 00:00:00
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journal_title：Journal of sports science & medicine
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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更新日期：2005-12-01 00:00:00
