have greater influences on obesity reduction and promote
greater weight loss when compared to anaerobic activities
such as RT. Previous studies utilizing Tai Chi as an exercise
intervention have demonstrated significant improvements in
physical functionand facilitateweight loss [17–21]. Resistance
training and Tai Chi have also been found to have a very
high adherence rate in older adults due to the low risk of
injury associated when performed at a moderate intensity
[12, 13, 20–22]. Along with increasing physical activity, older
adults should improve their diet to augment the effects of
exercise [2].
Combining an exercise program with a behavioral-based
dietary intervention has been shown to significantly improve
function and body composition [6, 23–25]. Previous dietary
research has shown that the Dietary Approach to Stop
Hypertension (DASH) diet improves total diet quality, blood
pressure, and can facilitate weight loss [23, 26, 27].TheDASH
diet has been shown to be an effective and reliable intervention
tool in obese older adults [23, 25, 28]. Furthermore, the
modified DASH diet (<35% fat versus <27% fat) combined
with exercise results in significant decreases in fat mass and
results in significant weight loss in older adults [15, 25].
There have been numerous studies that show combining
exercise formswith a dietary intervention results in improved
physical function, muscle strength, and body composition
[6, 15, 24, 25, 29]. However, there is a lack of translational
research on Tai Chi and RT in combination with dietary
changes in an urban setting. In addition, a study combining
these individually demonstrated interventions has not been
evaluated in obese older women in an urban setting. We
hypothesized that physical function, muscular strength, and
body composition would significantly improve in the intervention
(EXD) group as a result of a 12-week intervention
compared to a control (CON) group. Thus, the purpose of
this study was to examine the effects of Tai Chi, diet, and RT
in obese older women on measures of physical and muscle
function and body composition.
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