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Lee and Choi: The Relationship between Lifetime Sports Activity Measured with MET and Peak Strain Score and Bone Measurement in College-aged Women
Original Article
Journal of Korean Academy of Nursing

Journal of Korean Academy of Nursing 2008; 38(5): 667-675.

Published online: 30 October 2008

DOI: https://doi.org/10.4040/jkan.2008.38.5.667

The Relationship between Lifetime Sports Activity Measured with MET and Peak Strain Score and Bone Measurement in College-aged Women

Eun-Nam Lee1, Eun Jung Choi2

1Professor, Department of Nursing, Dong-A University, Busan, Korea.

2Part-time Instructor, Department of Nursing, Dong-A University, Busan, Korea.

Address reprint requests to: Lee, Eun Nam. Department of Nursing, Dong-A University, 1 Dongdaesin-dong 3 ga, Seo-gu, Busan 602-714, Korea. Tel: 82-51-240-2864, Fax: 82-51-240-2947, enlee@dau.ac.kr

Received 26 June 2008       Accepted 30 September 2008

Copyright © 2008 Korean Society of Nursing Science

Abstract

Purpose

The aim of this study was to compare the relation between differently measured sports activities (metabolic equivalent [MET] and peak strain score) and distal radius bone mineral density in college-aged women.

Methods

Lifetime sports activity was scored in two different ways: 1) a sports activity score by multiplying the intensity (METs) and duration and 2) a sports activity score by adding up physical strain scores based on the ground reaction force of each sports activities. Bone mineral density was measured using dual energy x-ray densitometry (DTX-200) in the distal radius site.

Results

In stepwise multiple regression analysis, body weight and sports activities during the college period were significant positive predictors for distal radius bone mineral density. The explained variance of sports activity measured with a peak strain score (8.8%) for distal radius bone mineral density was higher than one measured with the MET score (3.3%).

Conclusion

It can be concluded that sports activity scores based on MET and peak strain scores during college are very important for determining the bone mineral density in the distal radius site in women under 30.

Keywords: Sports, Bone density, Women

Figures and Tables

Table 1
Baseline Characteristics of the Subjects (N=194)
jkan-38-667-i001

BMD=bone mineral density.

Table 2
MET, PSS and Duration of Sports Activity according to Period (N=194)
jkan-38-667-i002

MET=metabolic equivalent; PSS=peak strain score.

Table 3
Correlation between Variables and Bone Mineral Density
jkan-38-667-i003

*p<.05; **p<.01.

META=activity level based on MET score; PSSA=activity level based on peak strain score; BMD=bone mineral density.

Table 4
Comparison of Variance in Bone Mineral Density explained by Physical Activity Measured with META and PSSA
jkan-38-667-i004

META=Activity level based on MET score; PSSA=Activity level based on peak strain score.

Notes

This Paper was supported by Dong-A University Research Fund in 2005.

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