여자 대학생의 골소공증과 신체활동량의 상관관계

Abstract

The purpose of this study was to clarify whether physical activity relates to osteopenia in female college students. We examined the association between physical activity and osteopenia among 121 female college students. We measured physical activity using the modified Heyward's questionnaire. Bone mineral density was measured by Quantitative Ultrasonography (QUS), and participants were classified as normal (T-score > -0.99) and osteopenia (T-score between -1 and -2.5) following the WHO guidelines. Multivariate logistic regression models were used to investigate the association between physical activity and osteopenia after adjustment of age and additional adjustment for cigarette smoking, overweight, dietary habits, and alcohol consumption. Trends across physical activity levels were tested by treating physical activity scores as an ordinal score. General linear models were used to test mean differences for descriptive physiological characteristics between normal and osteopenia categories after adjustment for age. All statistical procedures were performed by Statistical Analysis System (SAS Institute, Inc., Cary, North Carolina).Multivariate logistic regression documented that physical activity is inversely associated with incidence of osteopenia +in female college students. After adjustment for age, moderately and highly active female students had 78% (95% CI: 0.07, 0.65) and 75% (95% CI: 0.08, 0.74) respectively, lower odds of having osteopenia when compared with inactive college students. These associations were similar after adjustment for multiple risk factors. Highly active female students had 78% (95% CI: 0.07, 0.70) and moderately active individuals had 77% (95% CI: 0.07, 0.70) lower odds of having osteopenia as compared with inactive female students.An increased physical activity is inversely associated with reduced risk of developing osteopenia in female college students.