title: Cardiorespiratory fitness, activity level, health-related anthropometric variables, sedentary behaviour and socioeconomic status in a sample of Iranian 7-11 year old boys.
abstract: The purpose of this study was to evaluate cardiorespiratory fitness (CRF), activity level, some health-related anthropometric variables, sedentary behaviour and socioeconomic status (SES) of 7-11 year old boys in the city of Ardabil, Iran. Of 21 253 school boys aged 7-11 years, 766 participated in this study using the cluster sampling method. Subjects underwent standard anthropometry. One-mile test was used to evaluate [Formula: see text]O2 max. BMI cut-off points were used to identify weight status. Child's TV watching and video playing daily time (TVVPT) was taken for sedentary behaviour evaluation. SES and activity level were measured by standard questionnaires. Of all participants, 8.9% (N=68) of students had CRF lower than normal and 58.6% (N=449) of them had inadequate physical activity. There was a significant adverse relationship between [Formula: see text]O2 max and body mass index (BMI), waist to height ratio (WHtR), waist circumference (WC), and fat mass (FM) (p<0.05). A significant direct association between SES and both FM and TVVPT was observed (p<0.05). Significantly lower physical activity and [Formula: see text]O2 max, and higher TVVPT were observed in the obese boys than their counterparts (p<0.05). The results of this study indicated a significant relationship between CRF and physical activity, and health-related anthropometric variables in a selected sample of 7-11 year boys. Moreover, the obese subjects had not only lower physical activity but also longer sedentary behaviour time than their counterparts.
authors.affiliation: University of Mohaghegh-Ardabili, Ardabil, Iran.
authors.forename: S
authors.initials: S
authors.lastname: Esmaeilzadeh
authors.affiliation: University of Mohaghegh-Ardabili, Ardabil, Iran.
authors.forename: H
authors.initials: H
authors.lastname: Kalantari
authors.affiliation: Department of Exercise Physiology, Ardabil Branch, Islamic Azad University, Ardabil, Iran.
authors.forename: B
authors.initials: B
authors.lastname: Nakhostin-Roohi
keywords: BMI; activity level; cardiorespiratory fitness; socioeconomic status
references.citation: Int J Sports Med. 2002 May;23 Suppl 1:S15-21
references.pmid: 12012257
references.citation: Am J Clin Nutr. 2006 Aug;84(2):299-303
references.pmid: 16895875
references.citation: Med Sci Sports Exerc. 1997 Oct;29(10):1344-9
references.pmid: 9346166
references.citation: Proc Natl Acad Sci U S A. 2004 Mar 2;101(9):3316-21
references.pmid: 14978288
references.citation: Int J Sports Med. 2002 May;23 Suppl 1:S8-14
references.pmid: 12012256
references.citation: Obes Res. 2003 Mar;11(3):434-41
references.pmid: 12634442
references.citation: Obes Res. 2002 May;10(5):379-85
references.pmid: 12006637
references.citation: BMJ. 2007 Jul 28;335(7612):194
references.pmid: 17591624
references.citation: Obes Res. 2005 Jul;13(7):1246-54
references.pmid: 16076995
references.citation: Am J Clin Nutr. 2000 Aug;72(2):490-5
references.pmid: 10919946
references.citation: Arch Intern Med. 2005 Jan 10;165(1):42-8
references.pmid: 15642873
references.citation: Int J Pediatr Obes. 2010 Dec;5(6):467-73
references.pmid: 20233152
references.citation: Int J Obes Relat Metab Disord. 1999 Dec;23(12):1262-8
references.pmid: 10643682
references.citation: Eur J Pediatr. 2000 Sep;159 Suppl 1:S56-68
references.pmid: 11011956
references.citation: J Gerontol A Biol Sci Med Sci. 2003 Feb;58(2):176-80
references.pmid: 12586857
references.citation: Obes Res. 2004 Mar;12(3):513-20
references.pmid: 15044669
references.citation: Pediatrics. 1993 Feb;91(2):273-80
references.pmid: 8424000
references.citation: J Pediatr. 2005 Jun;146(6):732-7
references.pmid: 15973308
references.citation: BMJ. 2000 May 6;320(7244):1240-3
references.pmid: 10797032
references.citation: J Gerontol A Biol Sci Med Sci. 2006 Nov;61(11):1166-70
references.pmid: 17167157
references.citation: Med Sci Sports Exerc. 2009 Jan;41(1):35-73
references.pmid: 19123262
references.citation: Child Dev. 1985 Oct;56(5):1345-57
references.pmid: 4053746
references.citation: Int J Pediatr Obes. 2006;1(2):114-9
references.pmid: 17907324
references.citation: Res Q Exerc Sport. 1990 Mar;61(1):7-19
references.pmid: 2091168
references.citation: Am J Clin Nutr. 2005 Apr;81(4):746-50
references.pmid: 15817847
references.citation: Am J Hum Biol. 2006 May-Jun;18(3):335-41
references.pmid: 16634016
references.citation: Arch Pediatr Adolesc Med. 2000 Mar;154(3):220-6
references.pmid: 10710017
references.citation: Exerc Sport Sci Rev. 1986;14:325-57
references.pmid: 3525188
references.citation: Ann Hum Biol. 2007 Jan-Feb;34(1):107-22
references.pmid: 17536760
references.citation: Pediatrics. 1988 Sep;82(3):324-30
references.pmid: 3405661
references.citation: Int J Obes (Lond). 2006 Jun;30(6):988-92
references.pmid: 16432546
references.citation: Int J Pediatr. 2010;2010:515414
references.pmid: 20652083
references.citation: JAMA. 2005 Dec 21;294(23):2981-8
references.pmid: 16414945