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Title: Effects of different levels of weightlifting training on bone mineral density in a group of adolescents
Authors: Paillard, Thierry
Hage, Rawad El 
Rassy, Nathalie Al
Zouhal, Hassane
Kaabi, Sofiane
Passelergue, Philippe
Affiliations: Faculty of Arts and Sciences 
Keywords: Adolescence
Peak bone mass
Training level
Issue Date: 2022-10-01
Part of: Journal of Clinical Densitometry
Volume: 25
Issue: 4
Start page: 497
End page: 505
The aim of the current study was to evaluate the effects of different levels of weightlifting training on bone mineral density (BMD) at different body sites (whole body (WB), lumbar spine (LS), femoral neck (FN), upper limbs (UL) and lower limbs (LL)) in a group of adolescents. Three groups of pubertal boys aged 13-15 years were recruited, including a control group (which included 13 untrained adolescents), a moderately trained group (which included 13 non-elite weightlifters, with four sessions of 2 hours per week) and a highly trained group (which included 13 elite weightlifters, with eight sessions of 2 hours per week). The three groups were paired for age and maturation index (using Tanner stages). Body composition, bone mineral content (BMC) and BMD were evaluated by dual-energy X ray absorptiometry (DXA). Physical performance variables (including weightlifting specific exercises, counter movement jump and squat jump) were measured using validated methods. Results showed that the values of BMD and physical performance variables were greater in the group of elite weightlifters compared to the group of non-elite weightlifters and the control group. In addition, the values of BMD and physical performance variables were higher in the group of the non-elite weightlifters compared to those of the control group. After adjusting for lean mass and squat jump, lumbar spine BMD, FN BMD, UL BMD and LL BMD remained significantly higher in the elite weightlifters' group compared to the two other groups. In conclusion, the current study suggests that elite adolescent weightlifters have greater bone health parameters compared to moderately-trained adolescent weightlifters and untrained adolescents.
ISSN: 1094-6950
DOI: 10.1016/j.jocd.2022.06.004
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Physical Education

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