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    Habitual physical activity in 10- to 12-year-old Bolivian boys : the relation between altitude and socioeconomic status

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    Date
    1994
    Author
    Slooten, J
    Kemper, HCG
    Post, GB
    Lujan, C
    Coudert, J
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    Abstract
    Abstract. This study describes habitual physical activity (HPA) of Bolivian boys living at different altitudes and form different socioeconomic status. The boys were living at high altitude (HA) in La Paz (4000 m) and at low altitude (LA) in Santa Cruz (400m). At both altitudes samples of 10 - to 12-year-old boys were chosen from a relatively low socioeconomic status (LSES) and a relatively high socioeconomic status (HSES). At HA 19 boys from LSES and 10 boys from HSES were measured and at LA 14 boys from LSES and 13 boys from HSES. HPA was measured by 24-h heart rate (HR) monitoring. Also an interview was completed to recall the HPA. By comparing the registered HR data with the time they were asleep the mean HR during sleep was calculated (HRsleep). The maximal HR (HRmax) was measured from a maximal exercise test on a bicycle ergometer. Heart rate reserve (HRR = HRmax-HRsleep) was used to measure the mean level of physical activity of the subjects. The results show that HRsleep (= HRrest) in HA boys with 70 (± 6) beats /min was significantly lower (p< 0.05) than in LA boys with 77 (± 10) beats/min. HRmax was also significantly lower (p< 0.05) in HA boys (187 ± 12 beats/min) compared to LA boys (195 ± 8 beats/min). Because HA influences HRsleep and HRmax in the same way, HRR is not significantly different between boys of HA and LA…
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    http://repositorio.umsa.bo/xmlui/handle/123456789/20802
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    dsie
    Universidad Mayor de San Andrés
    Ciudad de La Paz - Estado Plurinacional de Bolivia
    copyleft © 2018 
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    dsie
    Universidad Mayor de San Andrés
    Ciudad de La Paz - Estado Plurinacional de Bolivia
    copyleft © 2018 
    Contact Us | Send Feedback
    dsie