scholarly journals Calcium intake below the recommended dietary allowance is associated with lower tibia bone mineral content and strength in young adults entering initial military training

2017 ◽  
Vol 31 (S1) ◽  
Author(s):  
Anna Nakayama ◽  
Laura J Lutz ◽  
James P McClung ◽  
Erin Gaffney‐Stomberg
Keyword(s):  
Young Adults ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Calcium Intake ◽  
Mineral Content ◽  
Military Training ◽  
Recommended Dietary Allowance ◽  
Tibia Bone ◽  
Dietary Allowance

scholarly journals A dietary pattern rich in calcium, potassium, and protein is associated with tibia bone mineral content and strength in young adults entering initial military training

2019 ◽  
Vol 109 (1) ◽  
pp. 186-196 ◽  
Author(s):  
Anna T Nakayama ◽  
Laura J Lutz ◽  
Adela Hruby ◽  
James P Karl ◽  
James P McClung ◽  
...  
Keyword(s):  
Young Adults ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Dietary Pattern ◽  
Mineral Content ◽  
Military Training ◽  
Quantitative Computed Tomography ◽  
Z Score ◽  
Mineral Density ◽  
Tibia Bone

ABSTRACT Background Stress fracture risk is elevated during initial military training (IMT), particularly in lower-extremity bones such as the tibia. Although the etiology of stress fractures is multifactorial, lower bone strength increases risk. Objective The objective of this study was to assess, through the use of peripheral quantitative computed tomography, whether adherence to a dietary pattern rich in calcium, potassium, and protein before IMT is positively associated with bone indexes in young adults entering IMT. Design A cross-sectional analysis was performed with the use of baseline data from 3 randomized controlled trials in Army, Air Force, and Marine recruits (n = 401; 179 men, 222 women). Dietary intake was estimated from a food-frequency questionnaire. A dietary pattern characterized by calcium, potassium, and protein was derived via reduced rank regression and a pattern z score was computed for each volunteer, where higher scores indicated greater adherence to the pattern. At the 4% (metaphysis) and 14% (diaphysis) sites of the tibia, bone mineral content (BMC), volumetric bone mineral density, robustness, and strength indexes were evaluated. Associations between dietary pattern z score as the predictor variable and bone indexes as the response variables were evaluated by multiple linear regression. Results Pattern z score was positively associated with BMC (P = 0.004) and strength (P = 0.01) at the metaphysis and with BMC (P = 0.0002), strength (P = 0.0006), and robustness (P = 0.02) at the diaphysis when controlling for age, sex, race, energy, smoking, education, and exercise. Further adjustment for BMI attenuated the associations, except with diaphyseal BMC (P = 0.005) and strength (P = 0.01). When height and weight were used in place of body mass index, the association with BMC remained (P = 0.046). Conclusions A dietary pattern rich in calcium, potassium, and protein is positively associated with measures of tibia BMC and strength in recruits entering IMT. Whether adherence to this dietary pattern before IMT affects injury susceptibility during training remains to be determined. These trials were registered at clinicaltrials.gov as NCT01617109 and NCT02636348.

Self-Reported Calcium Intake and Bone Mineral Content in Children and Adolescents

2001 ◽  
Vol 20 (5) ◽  
pp. 502-509 ◽  
Author(s):  
Lisa M. Carter ◽  
Susan J. Whiting ◽  
Donald T. Drinkwater ◽  
Gordon A. Zello ◽  
Robert A. Faulkner ◽  
...  
Keyword(s):  
Bone Mineral Content ◽  
Children And Adolescents ◽  
Bone Mineral ◽  
Calcium Intake ◽  
Mineral Content

Effect of intense physical activity on the bone-mineral content in the lower limbs of young adults.

1986 ◽  
Vol 68 (7) ◽  
pp. 1090-1093 ◽  
Author(s):  
J Y Margulies ◽  
A Simkin ◽  
I Leichter ◽  
A Bivas ◽  
R Steinberg ◽  
...  
Keyword(s):  
Physical Activity ◽  
Young Adults ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Mineral Content ◽  
Lower Limbs ◽  
Intense Physical Activity

Bone size and bone mineral content in adolescents and young adults with eating disorders

2013 ◽  
Author(s):  
Shepherd Sheila ◽  
Faisal Ahmed Syed ◽  
Oakley Charlotte ◽  
Thrower Michelle ◽  
Shaikh Guftar
Keyword(s):  
Eating Disorders ◽  
Young Adults ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Mineral Content ◽  
Bone Size ◽  
Adolescents And Young Adults

scholarly journals Physical activity, calcium intake, and bone mineral content in children in The Netherlands.

1995 ◽  
Vol 49 (3) ◽  
pp. 299-304 ◽  
Author(s):  
M F VandenBergh ◽  
S A DeMan ◽  
J C Witteman ◽  
A Hofman ◽  
W T Trouerbach ◽  
...  
Keyword(s):  
Physical Activity ◽  
The Netherlands ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Calcium Intake ◽  
Mineral Content
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