Unknown

Dataset Information

0

Exercise volume and aerobic fitness in young adults: the Midwest Exercise Trial-2.


ABSTRACT: To examine the effect of exercise volume at a fixed intensity on changes in aerobic fitness. Ninety-two overweight/obese individuals (BMI 25-40 kg m(2)), age 18-30 years, 50 % women, completed a 10 mo, 5 d wk(-1) supervised exercise intervention at 2 levels of exercise energy expenditure (400 or 600 kcal session(-1)) at 70-80 % heart rate (HR) max. Exercise consisted primarily of walking/jogging on motor-driven treadmills. The duration and intensity of all exercise sessions were verified by a downloadable HR monitor set to collect HR in 1-min epochs. All participants were instructed to continue their typical patterns of non-exercise physical activity and dietary intake over the duration of the 10 mo intervention. Maximal aerobic capacity (indirect calorimetry) was assessed on a motor-driven treadmill using a modified Balke protocol at baseline, mid-point (5 mo), and following completion of the 10 mo intervention. VO2 max (L min(-1)) increased significantly in both the 400 (11.3 %) and 600 kcal session(-1) groups (14 %) compared to control (-2.0 %; p < 0.001); however, the differences between exercise groups were not significant. Similar results were noted for change in relative VO2 max (mL kg(-1) min(-1)); however, the magnitude of change was greater than for absolute VO2 max (L min(-1)) (400 group = 18.3 %; 600 group = 20.2 %) due to loss of body weight over the 10-mo intervention in both exercise groups. Our results indicate that exercise volume was not associated with change in aerobic fitness in a sample of previously sedentary, overweight and obese young adults.

SUBMITTER: Schubert MM 

PROVIDER: S-EPMC4767711 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

altmetric image

Publications

Exercise volume and aerobic fitness in young adults: the Midwest Exercise Trial-2.

Schubert Matthew M MM   Washburn Richard A RA   Honas Jeffery J JJ   Lee Jaehoon J   Donnelly Joseph E JE  

SpringerPlus 20160225


To examine the effect of exercise volume at a fixed intensity on changes in aerobic fitness. Ninety-two overweight/obese individuals (BMI 25-40 kg m(2)), age 18-30 years, 50 % women, completed a 10 mo, 5 d wk(-1) supervised exercise intervention at 2 levels of exercise energy expenditure (400 or 600 kcal session(-1)) at 70-80 % heart rate (HR) max. Exercise consisted primarily of walking/jogging on motor-driven treadmills. The duration and intensity of all exercise sessions were verified by a do  ...[more]

Similar Datasets

| S-EPMC9331115 | biostudies-literature
| S-EPMC3747141 | biostudies-literature
| S-EPMC6201415 | biostudies-literature
| S-EPMC5860435 | biostudies-literature
| S-EPMC3991014 | biostudies-literature
| S-EPMC5624291 | biostudies-literature
| S-EPMC5538117 | biostudies-literature
| S-EPMC9231419 | biostudies-literature
| S-EPMC4640322 | biostudies-literature
| S-EPMC8288486 | biostudies-literature