TY - JOUR
T1 - Modifiable lifestyle factors affecting bone health using calcaneus quantitative ultrasound in adolescent girls
AU - Robinson, M. L.
AU - Winters-Stone, K.
AU - Gabel, K.
AU - Dolny, D.
PY - 2007/8
Y1 - 2007/8
N2 - Summary: One hundred and fourteen girls were measured for calcaneus QUS (stiffness index score), calcium intake, weight, and total hours spent in physical activity (moderate to high-impact activities and low to no-impact activities). Multiple regression analysis indicated that hours spent in moderate to high-impact activities, current calcium intake, and weight significantly predicted SI. Introduction: To determine the influence of modifiable lifestyle factors on adolescent girls' bone health measured by calcaneus quantitative ultrasound (QUS). One hundred and fourteen girls, ages 14-18 (15.97±.7), enrolled in high school physical education classes, were measured for calcaneus QUS (stiffness index score), height, weight, current calcium intake from 2-3 day food records, and estimated total hours spent in physical activity from kindergarten to present. Cumulative physical activity hours were separated into two classifications (according to their estimated strain from ground reaction force): moderate to high-impact activities and low to no-impact activities. Results: Pearson correlations between stiffness index (SI) and age, height, weight, current calcium intake, and hours spent in moderate to high-impact versus low to no-impact activities indicated a positive relationships between SI and weight (r=.259, p=.005), current calcium intake (r=.286, p=.002), and hours spent in moderate to high-impact activities (r=.451, p<.001). Multiple regression between SI and the above independent variables indicated that collectively, hours spent in moderate to high-impact activities, current calcium intake, and weight (r 2=.363, p=<.001) significantly predicted SI. Conclusion: Our data indicate that moderate to high-impact activities, current calcium intake, and weight positively influence bone properties of the calcaneus in adolescent girls.
AB - Summary: One hundred and fourteen girls were measured for calcaneus QUS (stiffness index score), calcium intake, weight, and total hours spent in physical activity (moderate to high-impact activities and low to no-impact activities). Multiple regression analysis indicated that hours spent in moderate to high-impact activities, current calcium intake, and weight significantly predicted SI. Introduction: To determine the influence of modifiable lifestyle factors on adolescent girls' bone health measured by calcaneus quantitative ultrasound (QUS). One hundred and fourteen girls, ages 14-18 (15.97±.7), enrolled in high school physical education classes, were measured for calcaneus QUS (stiffness index score), height, weight, current calcium intake from 2-3 day food records, and estimated total hours spent in physical activity from kindergarten to present. Cumulative physical activity hours were separated into two classifications (according to their estimated strain from ground reaction force): moderate to high-impact activities and low to no-impact activities. Results: Pearson correlations between stiffness index (SI) and age, height, weight, current calcium intake, and hours spent in moderate to high-impact versus low to no-impact activities indicated a positive relationships between SI and weight (r=.259, p=.005), current calcium intake (r=.286, p=.002), and hours spent in moderate to high-impact activities (r=.451, p<.001). Multiple regression between SI and the above independent variables indicated that collectively, hours spent in moderate to high-impact activities, current calcium intake, and weight (r 2=.363, p=<.001) significantly predicted SI. Conclusion: Our data indicate that moderate to high-impact activities, current calcium intake, and weight positively influence bone properties of the calcaneus in adolescent girls.
KW - Adolescent
KW - Bone assessment
KW - Calcium intake
KW - Physical activity
KW - Quantitative ultrasound
KW - Weight
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U2 - 10.1007/s00198-007-0359-3
DO - 10.1007/s00198-007-0359-3
M3 - Article
C2 - 17353995
AN - SCOPUS:34347405582
SN - 0937-941X
VL - 18
SP - 1101
EP - 1107
JO - Osteoporosis International
JF - Osteoporosis International
IS - 8
ER -