Type

Journal Article

Authors

Philip Jakeman
Mark Lyons
Emmet Kerin
Jean Saunders
Catherine Norton
Clodagh Toomey
William Mc Cormack
Peter Francis
William McCormack

Subjects

Physiotherapy & Sport

Topics
healthy aging body mass milk protein functional capability isometric contraction muscle strength x ray 50 years resistance training older women

Twelve weeks' progressive resistance training combined with protein supplementation beyond habitual intakes increases upper leg lean tissue mass, muscle strength and extended gait speed in healthy older women. (2016)

Abstract The age-related decline in functional capability is preceded by a reduction in muscle quality. The purpose of this study was to assess the combined effects of progressive resistance training (PRT) and protein supplementation beyond habitual intakes on upper leg lean tissue mass (LTM), muscle quality and functional capability in healthy 50-70 years women. In a single-blinded, randomized, controlled design, 57 healthy older women (age 61.1 ± 5.1 years, 1.61 ± 0.65 m, 65.3 ± 15.3 kg) consumed 0.33 g/kg body mass of a milk-based protein matrix (PRO) for 12 weeks. Of the 57 women, 29 also engaged in a PRT intervention (PRO + PRT). In comparison to the PRO group (n = 28), those in the PRO + PRT group had an increase in upper leg LTM [0.04 (95% CI -0.07 to 0.01) kg vs. 0.13 (95% CI 0.08-0.18) kg, P = 0.027], as measured by Dual-energy X-ray absorptiometry; an increase in knee extensor (KE) torque [-1.6 (95% CI -7.3 to 4.4 N m) vs. 10.2 (95% CI 4.3-15.8 N m), P = 0.007], as measured from a maximal voluntary isometric contraction (Con-Trex MJ; CMV AG); and an increase in extended gait speed [-0.01 (95% CI -0.52-0.04) m s(-1) vs. 0.10 (95% CI 0.05-0.22) m s(-1), P = 0.001] as measured from a maximal 900 m effort. There was no difference between groups in the time taken to complete 5 chair rises or the number of chair rises performed in 30 s (P > 0.05). PRT in healthy older women ingesting a dietary protein supplement is an effective strategy to improve upper leg LTM, KE torque and extended gait speed in healthy older women.
Collections Ireland -> University of Limerick -> Faculty of Education & Health Sciences
Ireland -> University of Limerick -> Departments Education & Health Sciences
Ireland -> University of Limerick -> PubMed
Ireland -> University of Limerick -> Physical Education and Sports Science

Full list of authors on original publication

Philip Jakeman, Mark Lyons, Emmet Kerin, Jean Saunders, Catherine Norton, Clodagh Toomey, William Mc Cormack, Peter Francis, William McCormack

Experts in our system

1
Philip M Jakeman
University of Limerick
Total Publications: 63
 
2
Mark Lyons
University of Limerick
Total Publications: 42
 
3
Jean Saunders
University of Limerick
Total Publications: 63
 
4
Catherine Norton
University of Limerick
Total Publications: 6
 
5
Clodagh Toomey
University of Limerick
Total Publications: 15
 
6
William Mc Cormack
University of Limerick
Total Publications: 3
 
7
Peter Francis
University of Limerick
Total Publications: 13
 
8
William McCormack
University of Limerick
Total Publications: 13