Do Overweight and Obese Individuals Select a 'Moderate Intensity' Workload When Asked to Do So?

Autor: Jay Koloseus, Cameron W. Hall, Jill A. Kanaley, Daniel Anderson, Michael E. Holmstrup
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Journal of Obesity
Journal of Obesity, Vol 2012 (2012)
ISSN: 2090-0708
DOI: 10.1155/2012/919051
Popis: The purpose of this study was (1) to determine if overweight/obese individuals (age 26–50 y) would self-select moderate exercise intensity when asked to do so and (2) to determine how this self-selected workload compared to exercising at a workload (60% peak aerobic capacity) that is known to provide cardioprotective health benefits. Oxygen consumption (VO 2) and energy expenditure were measured in 33 men/women ( B M I ≥ 2 7 kg/m 2) who completed two 30 min walking bouts: (1) self-selected walking pace on an indoor track and (2) prescribed exercise pace (60% VO 2 peak) on a treadmill. The data revealed that (1) the prescribed intensity was 6% higher than the self-selected pace and elicited a higher energy expenditure ( 𝑃 0 . 0 5 ) than the self-selected pace (+83 kJ); (2) overweight subjects walked at a slightly lower percentage of VO 2 peak than the obese subjects ( 𝑃 0 . 0 5 ); (3) men walked at a lower percentage of VO 2 peak than the women ( 𝑃 0 . 0 5 ). In conclusion when asked to walk at a moderate intensity, overweight/obese individuals tended to select a lower workload in the “moderate intensity” range which could be maintained for 30 min; however, a higher intensity which would be more cardioprotective could not be maintained for 30 min by most individuals.
Databáze: OpenAIRE