OBJECTIVES: To examine the possible influences of age and gender on muscle volume responses to strength training (ST). DESIGN: Prospective intervention study. SETTING: University of Maryland Exercise Science and Wellness Research Laboratories. PARTICIPANTS: Eight young men (age 20-30 years), six young women (age 20-30 years), nine older men (age 65-75 years), and ten older women (age 65-75 years). INTERVENTION: A 6-month whole-body ST program that exercised all major muscle groups of the upper and lower body 3 days/week. MEASUREMENTS: Thigh and quadriceps muscle volumes and mid-thigh muscle cross-sectional area (CSA) were assessed by magnetic resonance imaging before and after the ST program. RESULTS: Thigh and quadriceps muscle volume increased significantly in all age and gender groups as a result of ST (P < .001), with no significant differences between the groups. Modest correlations were observed between both the change in quadriceps versus the change in total thigh muscle volume (r = 0.65; P < .001) and the change in thigh muscle volume versus the change in mid-thigh CSA (r = 0.76, P < .001). CONCLUSIONS: The results indicate that neither age nor gender affects muscle volume response to whole-body ST. Muscle volume, rather than muscle CSA, is recommended for studying muscle mass responses to ST.
OBJECTIVES: To examine the possible influences of age and gender on muscle volume responses to strength training (ST). DESIGN: Prospective intervention study. SETTING: University of Maryland Exercise Science and Wellness Research Laboratories. PARTICIPANTS: Eight young men (age 20-30 years), six young women (age 20-30 years), nine older men (age 65-75 years), and ten older women (age 65-75 years). INTERVENTION: A 6-month whole-body ST program that exercised all major muscle groups of the upper and lower body 3 days/week. MEASUREMENTS: Thigh and quadriceps muscle volumes and mid-thigh muscle cross-sectional area (CSA) were assessed by magnetic resonance imaging before and after the ST program. RESULTS: Thigh and quadriceps muscle volume increased significantly in all age and gender groups as a result of ST (P < .001), with no significant differences between the groups. Modest correlations were observed between both the change in quadriceps versus the change in total thigh muscle volume (r = 0.65; P < .001) and the change in thigh muscle volume versus the change in mid-thigh CSA (r = 0.76, P < .001). CONCLUSIONS: The results indicate that neither age nor gender affects muscle volume response to whole-body ST. Muscle volume, rather than muscle CSA, is recommended for studying muscle mass responses to ST.
Authors: A A Mero; J J Hulmi; H Salmijärvi; M Katajavuori; M Haverinen; J Holviala; T Ridanpää; K Häkkinen; V Kovanen; J P Ahtiainen; H Selänne Journal: Eur J Appl Physiol Date: 2012-08-17 Impact factor: 3.078
Authors: Angela Chalé; Gregory J Cloutier; Cynthia Hau; Edward M Phillips; Gerard E Dallal; Roger A Fielding Journal: J Gerontol A Biol Sci Med Sci Date: 2012-10-31 Impact factor: 6.053
Authors: Stephen M Roth; Robert E Ferrell; David G Peters; E Jeffrey Metter; Ben F Hurley; Marc A Rogers Journal: Physiol Genomics Date: 2002-09-03 Impact factor: 3.107
Authors: Eija Pöllänen; Vidal Fey; Timo Törmäkangas; Paula H A Ronkainen; Dennis R Taaffe; Timo Takala; Satu Koskinen; Sulin Cheng; Jukka Puolakka; Urho M Kujala; Harri Suominen; Sarianna Sipilä; Vuokko Kovanen Journal: Age (Dordr) Date: 2010-04-13