The relationship between lower limb bone and muscle in military recruits, response to physical training, and influence of smoking status

Scientific Reports
Zudin PuthuchearyHugh E Montgomery

Abstract

The relationship between bone and skeletal muscle mass may be affected by physical training. No studies have prospectively examined the bone and skeletal muscle responses to a short controlled exercise-training programme. We hypothesised that a short exercise-training period would affect muscle and bone mass together. Femoral bone and Rectus femoris Volumes (RFVOL) were determined by magnetic resonance imaging in 215 healthy army recruits, and bone mineral density (BMD) by Dual X-Ray Absorptiometry (DXA) and repeated after 12 weeks of regulated physical training. Pre-training, RFVOL was smaller in smokers than non-smokers (100.9 ± 20.2 vs. 108.7 ± 24.5, p = 0.018; 96.2 ± 16.9 vs. 104.8 ± 21.3, p = 0.002 for dominant/non-dominant limbs), although increases in RFVOL with training (of 14.2 ± 14.5% and 13.2 ± 15.6%] respectively, p < 0.001) were independent of prior smoking status. Pre-training RFVOL was related to bone cortical volume (r(2) = 0.21 and 0.30, p < 0.001 for dominant and non-dominant legs), and specifically to periosteal (r(2) = 0.21 and 0.23, p < 0.001) volume. Pre-training dominant RFVOL was independently associated with Total Hip BMD (p < 0.001). Training-related increases in RFVOL and bone volumes were related. Wh...Continue Reading

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Citations

Aug 17, 2018·Journal of Environmental and Public Health·Ahmad M Al-BashairehSaunjoo Yoon
Oct 1, 2019·Archaeological and Anthropological Sciences·Emma PomeroyJonathan C K Wells
Mar 7, 2021·International Journal of Environmental Research and Public Health·Marcin LijewskiAleksandra Stachoń

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Software Mentioned

Statistical Package for the Social Sciences
OsiriX Imaging [UNK]
VERTEC

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