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Osteoporosis International

, Volume 19, Issue 11, pp 1567–1577 | Cite as

The BPAQ: a bone-specific physical activity assessment instrument

  • B. K. Weeks
  • B. R. BeckEmail author
Original Article

Abstract

Summary

A newly developed bone-specific physical activity questionnaire (BPAQ) was compared with other common measures of physical activity for its ability to predict parameters of bone strength in healthy, young adults. The BPAQ predicted indices of bone strength at clinically relevant sites in both men and women, while other measures did not.

Introduction

Only certain types of physical activity (PA) are notably osteogenic. Most methods to quantify levels of PA fail to account for bone relevant loading. Our aim was to examine the ability of several methods of PA assessment and a new bone-specific measure to predict parameters of bone strength in healthy adults.

Methods

We recruited 40 men and women (mean age 24.5). Subjects completed the modifiable activity questionnaire, Bouchard 3-day activity record, a recently published bone loading history questionnaire (BLHQ), and wore a pedometer for 14 days. We also administered our bone-specific physical activity questionnaire (BPAQ). Calcaneal broadband ultrasound attenuation (BUA) (QUS-2, Quidel) and densitometric measures (XR-36, Norland) were examined. Multiple regression and correlation analyses were performed on the data.

Results

The current activity component of BPAQ was a significant predictor of variance in femoral neck bone mineral density (BMD), lumbar spine BMD, and whole body BMD (R2 = 0.36–0.68, p < 0.01) for men, while the past activity component of BPAQ predicted calcaneal BUA (R2 = 0.48, p = 0.001) for women.

Conclusions

The BPAQ predicted indices of bone strength at skeletal sites at risk of osteoporotic fracture while other PA measurement tools did not.

Keywords

Bone mass Exercise Ground reaction force Pedometer 

Notes

Acknowledgements

The authors would like to acknowledge the assistance of Dr Rod Barrett and Dr Justin Kavanagh in the data collection phase of the project. There were no external funding sources for this project.

Conflict of interest

None.

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Copyright information

© International Osteoporosis Foundation and National Osteoporosis Foundation 2008

Authors and Affiliations

  1. 1.School of Physiotherapy and Exercise ScienceGriffith University, Gold Coast CampusGold CoastAustralia

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