| Reference : Does biological maturity actually confound gender-related differences in physical act... |
| Scientific journals : Article | |||
| Human health sciences : Multidisciplinary, general & others | |||
| http://hdl.handle.net/10993/26962 | |||
| Does biological maturity actually confound gender-related differences in physical activity in preadolescence? | |
| English | |
| Guinhouya, B.C. [> >] | |
| Fairclough, S.J. [> >] | |
| Zitouni, D. [> >] | |
| Samouda, H. [> >] | |
| Vilhelm, C. [> >] | |
| Zgaya, H. [> >] | |
De Beaufort, Carine  [University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > >] | |
| Lemdani, M. [> >] | |
| Hubert, H. [> >] | |
| Nov-2013 | |
| Child: Care, Health and Development | |
| Blackwell Publishing | |
| 39 | |
| 6 | |
| 835-844 | |
| Yes (verified by ORBilu) | |
| 0305-1862 | |
| 1365-2214 | |
| [en] accelerometry ; maturation ; movement behaviour ; prepubescent ; sexual dimorphism | |
| [en] Aim
To examine: (i) if maturity-related gender differences in moderate-to-vigorous physical activity (MVPA) depend on how maturity status is defined and measured; and (ii) the influence of maturity level on compliance with PA recommendations. Methods The study involved 253 children (139 boys) aged 9.9 ± 0.9 years, with mean stature and weight of 1.39 ± 0.08 m and 35.8 ± 8.8 kg respectively. Their PA was evaluated using an Actigraph accelerometer (Model 7164). Maturity was assessed using the estimated age at peak height velocity (APHV) and a standardized APHV by gender (i.e. centred APHV). Results Boys engaged in significantly more MVPA than girls (P < 0.0001). There was a significant correlation between the centred APHV and MVPA in boys (r = 0.20; P = 0.016), but not in girls (r = 0.13; P = 0.155). An ancova controlling for the estimated APHV showed no significant interactions between gender and APHV, and the main effect of gender on MVPA was negated. Conversely, there was a significant main effect of APHV on MVPA (F 1,249 = 6.12; P = 0.014; η p 2 = 0.024). Only 9.1% of children met the PA recommendations, including 14.4% of boys and 2.6% of girls (P < 0.01). This observation also applies in both pre-APHV (12.7% of boys vs. 2.4% of girls, P < 0.001) and post-APHV children (23.8% of boys vs. 3.4% of girls, P < 0.0001). No differences in PA guidelines were observed between pre-APHV and post-APHV children. Conclusions Among prepubescent children, the influence of biological maturity on gender differences in PA may be a function of how maturity status is determined. The most physically active prepubescent children were those who were on time according to APHV. | |
| http://hdl.handle.net/10993/26962 |
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