Pattern of physical activity can influence its efficacy on muscle and bone health in middle-aged men and women

Journal article


Luo, J, Ratcliffe, A, Chahal, J, Brennan, R and Lee, R (2018). Pattern of physical activity can influence its efficacy on muscle and bone health in middle-aged men and women. Sport Sciences for Health.
AuthorsLuo, J, Ratcliffe, A, Chahal, J, Brennan, R and Lee, R
Abstract

Purpose This study aimed at investigating whether association between physical activity, and bone density and muscle strength depends on daily activity pattern.Methods Loading dose of moderate-to-vigorous physical activity (MVPA) was measured using accelerometer on 54 men (Mage = 54.1 years) and 59 women (Mage = 52.1 years). Pattern of MVPA was quantiied as number and length of MVPA bouts, and the length of break bouts between MVPA bouts. Knee extension torque (KET) and broadband ultrasound attenu-ation (BUA) of the calcaneus were also measured. Regression analysis was employed to examine the moderation efect of MVPA pattern.Results Loading dose had a larger efect on BUA (b = .002, p = .035) and KET (b = .004, p = .01) with the increase of median length of MVPA bout, but had a smaller efect on KET with the increase of maximal length of break bout (b = − .015, p = .024).Conclusions This study suggests that pattern of physical activity can inluence its eicacy on muscle and bone health.

KeywordsAgeing; Accelerometry; Musculoskeletal health; Exercise prescription; 1106 Human Movement And Sports Science
Year2018
JournalSport Sciences for Health
PublisherSpringer Verlag
ISSN1824-7490
Digital Object Identifier (DOI)doi:https://doi.org/10.1007/s11332-018-0448-z
Publication dates
Print29 Mar 2018
Publication process dates
Deposited14 Apr 2018
Accepted24 Mar 2018
Accepted author manuscript
License
CC BY 4.0
Accepted author manuscript
License
CC BY 4.0
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