- Association of the ACTN3 genotype and physical functioning with age in older adultsMatthew J Delmonico
Department of Epidemiology, University of Pittsburg, Pittsburg, PA, USA
J Gerontol A Biol Sci Med Sci 63:1227-34. 2008..The purpose of this study was to examine the association of the alpha-actinin-3 (ACTN3) R577X polymorphism on muscle function and physical performance in older adults...
- Longitudinal study of muscle strength, quality, and adipose tissue infiltrationMatthew J Delmonico
Department of Epidemiology and Medicine, University of Pittsburgh, Pittsburgh, PA, USA
Am J Clin Nutr 90:1579-85. 2009..Sarcopenia is thought to be accompanied by increased muscle fat infiltration. However, no longitudinal studies have examined concomitant changes in muscle mass, strength, or fat infiltration in older adults...
- Alternative definitions of sarcopenia, lower extremity performance, and functional impairment with aging in older men and womenMatthew J Delmonico
Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
J Am Geriatr Soc 55:769-74. 2007..To compare two methods for classifying an individual as sarcopenic for predicting decline in physical function in the Health, Aging and Body Composition Study...
- Effects of physical activity on strength and skeletal muscle fat infiltration in older adults: a randomized controlled trialBret H Goodpaster
Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
J Appl Physiol (1985) 105:1498-503. 2008..3 +/- 5.7%). In conclusion, regular physical activity prevents both the age-associated loss of muscle strength and increase in muscle fat infiltration in older adults with moderate functional limitations...