Application of dual energy X-ray absorptiometry

Hind, K.

Abstract

Dual energy x-ray absorptiometry (DXA) is a quantitative imaging procedure for the measurement of bone mineral density and the diagnosis of osteopenia and osteoporosis. In a sporting context, DXA is particularly useful for the evaluation of athletes at risk of relative energy deficiency in sports, a condition associated with overtraining and/or undernutrition. This chapter informs on the safe and effective practice of DXA scanning and provides informed guidelines to promote high-quality standards in DXA scan acquisition and interpretation in sport and exercise sciences research and practice. DXA uses two x-ray beams of different energies that are diversely attenuated by bone and soft tissue. DXA involves a small amount of ionising radiation. DXA has an integral place in sport and exercise sciences, given its unique ability to measure bone, lean and fat mass status concurrently with a high degree of precision.

Citation

Hind, K. (2022). Application of dual energy X-ray absorptiometry. In R. Davison, P. Smith, J. Hopker, M. Price, F. Hettinga, G. Tew, & L. Bottoms (Eds.), Sport and Exercise Physiology Testing Guidelines: Volume I - Sport Testing The British Association of Sport and Exercise Sciences Guide. (2nd ed.). Routledge. https://doi.org/10.4324/9781003045281

• Online Publication Date: Mar 23, 2022
• Publication Date: 2022
• Deposit Date: Feb 9, 2022
• Publicly Available Date: Mar 23, 2023
• Publisher: Routledge
• Series Number: 1
• Edition: 2nd ed.
• Book Title: Sport and Exercise Physiology Testing Guidelines: Volume I - Sport Testing The British Association of Sport and Exercise Sciences Guide
• Chapter Number: 3.14
• DOI: https://doi.org/10.4324/9781003045281
• Public URL: https://durham-repository.worktribe.com/output/1651523