Background Authorities advocate that resistance and aerobic exercise are essential for
reducing risk factors for chronic disease and disability in older adults. However, the
incremental effects of combined resistance and aerobic exercise compared with either
modality alone on risk factors for disease and disability is generally unknown. Methods
Participants were 136 sedentary, abdominally obese older men and women recruited from
September 30, 2002, through November 15, 2006, at Queen's University. Participants were�…

Aims: Davidson et al. compared the individual and combined effects of aerobic and
resistance exercise on insulin resistance and functional limitations in abdominally obese
older adults. Methods: A total of 136 older (age 60–80 years) abdominally obese men (waist
circumference> 102 cm) and women (waist circumference> 88 cm) were randomized to one
of four groups: aerobic exercise (n= 37), resistance exercise (n= 36), combined aerobic and
resistance exercise (n= 35), or nonexercise (control; n= 28). Changes in insulin resistance�…