Relationship between bone mass and habitual physical activity, and calcium intake in 8-11 year old boys and girls

Rowlands, Ann V. and Powell, Sarah M. and Eston, Roger and Ingledew, David (2002) Relationship between bone mass and habitual physical activity, and calcium intake in 8-11 year old boys and girls. Paediatric Exercise Science, 14 (4). pp. 358-368.

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Abstract

This study aimed to determine the relationship between bone mineral content, habitual physical activity, and calcium intake in children. Fifty-seven children, aged 8–11 years, wore pedometers for seven days to assess activity. Calcium intake was estimated by a 4-day food diary. Bone mineral content (BMC) and areal density (BMD) were measured at the total proximal femur and femoral neck using dual energy X-ray absorptiometry. Regression analysis was used to assess contributions of physical activity and calcium intake to BMC, residualized for bone area and body mass. Physical activity explained 11.6% of the variance in residualized BMC at the proximal femur and 14.3% at the femoral neck (p < 0.05). Calcium intake added to the variance explained at the proximal femur only (9.8%, p < 0.05). This study provides evidence for an association between BMC and habitual physical activity.

Item Type:
Journal Article
Journal or Publication Title:
Paediatric Exercise Science
ID Code:
161057
Deposited By:
Deposited On:
18 Oct 2021 10:00
Refereed?:
Yes
Published?:
Published
Last Modified:
19 Nov 2021 12:04