Relationships among diet, physical activity, and dual plane dual-energy X-ray absorptiometry bone outcomes in pre-pubertalgirls
| Autor: | Lynn S. Brann, K.S. Bruening, Jodi N. Dowthwaite, Tamara A. Scerpella, Jie Ren |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Dietary Fiber medicine.medical_specialty Bone density Adolescent Physical activity 030209 endocrinology & metabolism Article 03 medical and health sciences 0302 clinical medicine Absorptiometry Photon Child Development Bone Density Internal medicine Medicine Humans Orthopedics and Sports Medicine Adrenarche Vitamin B12 Child Exercise Dual-energy X-ray absorptiometry 030109 nutrition & dietetics medicine.diagnostic_test business.industry Dual plane Spine Diet Vertebral body Vitamin B 12 Endocrinology Cross-Sectional Studies Nutrition Assessment Linear Models Dietary fiber Female business Bone mass |
| Zdroj: | Archives of osteoporosis. 12(1) |
| ISSN: | 1862-3514 |
| Popis: | In pre-pubertal girls, nutrient intakes and non-aquatic organized activity were evaluated as factors in vertebral body bone mass, structure, and strength. Activity, vitamin BChildhood development sets the baseline for adult fracture risk. Most studies evaluate development using postero-anterior (PA) dual-energy X-ray absorptiometry (DXA) areal bone mineral density, bone mineral content, and bone mineral apparent density. In a prior analysis, we demonstrated that PA DXA reflects posterior element properties, rather than vertebral body fracture sites, such that loading is associated with subtle differences in vertebral body geometry, not 3D density. The current analysis is restricted to pre-pubertal girls, for a focused exploration of key nutrient intakes and physical activity as factors in dual plane indices of vertebral body geometry, density, and strength.This cross-sectional analysis used paired PA and supine lateral (LAT) lumbar spine DXA scans to assess "3D" vertebral body bone mineral apparent density (PALATBMAD), "3D" index of structural strength in axial compression (PALATIBS), and fracture risk index (PALATFRI). Diet data were collected using the Youth/Adolescent Questionnaire (YAQ, 1995); organized physical activity was recorded via calendar-based form. Pearson correlations and backward stepwise multiple linear regression analyzed associations among key nutrients, physical activity, and bone outcomes.After accounting for activity and key covariates, fiber, unsupplemented vitamin BPhysical activity, fiber intake, and unsupplemented B |
| Databáze: | OpenAIRE |
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