Melin Alexandre, Obert Philippe, Bonnet Pierre, Courteix Daniel
Laboratoire de Physiologie de l'Exercice Musculaire, Faculté du Sport et de l'Education Physique, Rue de Vendôme, BP 6237, 45062 Orléans, France.
Can J Appl Physiol. 2003 Apr;28(2):190-203. doi: 10.1139/h03-015.
In order to assess possible influences of socioeconomic status and gender on habitual physical activity (HPA) of prepubertal French children, daily heart rate was 24-hr-monitored in 65 normal subjects for 2 days in the same school week. HPA was evaluated as the mean daily time spent at heart rates greater than 140 bpm (tFC > 140), 160 bpm (tF C > 160), 50% (tFC > 50%), and 70% (tFC > 70%) of the heart rate reserve. An effect of socioeconomic status (determined by questionnaire) was found in boys, with HPA being greater in the underprivileged ones (tFC > 140: 51.8 +/- 30.1 vs 33.0 +/- 14.1 min, p < .05; tFC > 160: 22.7 +/- 16.6 vs 11.1 +/- 7.4 min, p < .05; tFC > 50%: 61.4 +/- 33.5 vs 46.5 +/- 17.1 min, p < .06; tFC > 70%: 20.1 +/- 15.2 vs 10.6 +/- 7.1, p < .05). Boys were more active than girls, but only in the underprivileged group (tFC > 140: 51.8 +/- 30.1 vs 32.8 +/- 26.0 min, tFC > 160: 22.7 +/- 16.6 vs 9.9 +/- 8.2 min, p < .05; tFC > 50%: 61.4 +/- 33.5 vs 37.4 +/- 23.8 min, p < .05; tFC > 70%: 20.1 +/- 15.2 vs 8.1 +/- 6.3, p < .05). Cultural factors could be involved in these results.
为了评估社会经济地位和性别对青春期前法国儿童习惯性身体活动（HPA）的可能影响，在同一学校周内，对65名正常受试者的日常心率进行了为期2天的24小时监测。HPA被评估为心率大于心率储备的140次/分钟（tFC>140）、160次/分钟（tFC>160）、50%（tFC>50%）和70%（tFC>70%）时每天花费的平均时间。在男孩中发现了社会经济地位（通过问卷调查确定）的影响，贫困男孩的HPA更高（tFC>140：51.8±30.1对33.0±14.1分钟，p<.05；tFC>160：22.7±16.6对11.1±7.4分钟，p<.05；tFC>50%：61.4±33.5对46.5±17.1分钟，p<.06；tFC>70%：20.1±15.2对10.6±7.1，p<.05）。男孩比女孩更活跃，但仅在贫困组中（tFC>140：51.8±30.1对32.8±26.0分钟，tFC>160：22.7±16.6对9.9±8.2分钟，p<.05；tFC>50%：61.4±33.5对37.4±23.8分钟，p<.05；tFC>70%：20.1±15.2对8.1±6.3，p<.05）。文化因素可能与这些结果有关。
