Daily Physical Activity and Time-Space Using of Pygmy Hunter-Gatherers’ Children in Southeast Cameroon
Daily Physical Activity and Time-Space Using of Pygmy Hunter-Gatherers’ Children in Southeast Cameroon
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喀麦隆东南部俾格米狩猎采集者儿童的日常身体活动和时空利用
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
T. Yamauchi
中科院分区：
文献类型：
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作者：
I. Hagino;T. Yamauchi
以往的研究描述了狩猎采集者儿童活跃的日常生活和各种日常行为，然而，只有少数研究对狩猎采集者儿童的日常身体活动和时间空间进行了定量报道。本研究旨在阐明俾格米狩猎采集者儿童的三个主题：(1)日常体育活动；(2)时空利用；(3)体育活动与时空利用的关系。对喀麦隆东南部同一村庄的44名巴卡儿童（28名男孩和16名女孩）进行了实地调查。所有44名儿童均获得GPS日志轨迹，并对21名儿童进行连续3天的加速度监测。巴卡儿童普遍表现出高水平的体育活动。他们每天步行超过20,000步（男孩：25,331±9,348，女孩：22400±4,258），他们估计的pal的平均值（男孩：2.08±0.21，女孩：2.10±0.15）被归类为“活跃”。随着年龄的增长，总运动距离和活动半径显著增大，而在年龄较大的男孩中出现离散。从GPS日志数据中观察到性别/年龄的日常时空差异，并且认为男孩在成长过程中对日常生活的改变大于女孩。此外，有人认为，在自己的村庄之外的活动与增加儿童的体育活动有关。
Previous studies described the active daily lives and various daily behaviors for children of pygmy hunter-gatherers, however, there were only a few studies which reported daily physical activities and time-space using quantitatively for hunter-gatherers’ children. This study aimed to clarify following three topics for children of pygmy hunter-gatherers: (1) daily physical activities, (2) time-space use and (3) relationship between physical activities and time-space using. A field survey was conducted on 44 Baka children (28 boys and 16 girls) in a same village located southeast Cameroon. GPS log tracks were obtained from all 44 children, and acceleration monitoring were performed for 21 children each for consecutive 3 days. Baka children showed a generally high level of physical activity. They walked more than 20,000 steps per day (boys: 25,331 ± 9,348, girls: 22,400 ± 4,258), and the mean of their estimated PALs (boys: 2.08 ± 0.21, girls: 2.10 ± 0.15) were classified “vigorous.” Total travel distances and active radii were become significantly greater as their age increased, and a dispersion was appeared in older boys. The sex-/age- difference for daily time-space using were observed from GPS log data, moreover, it was considered that boys changed their daily lives greater than girls as they grew up. In addition, it was suggested that activities outside of their own village were related to increasing children’s physical activities.