Exercise intensity, energy expenditure and enjoyment during variable high intensity exercise in healthy adults

Presentation Type

Event

Full Name of Faculty Mentor

Justin Guilkey

Major

Exercise and Sport Science

Minor

Biology

Presentation Abstract

Examine exercise intensity, energy expenditure (EE), and perceptual responses to work-matched moderate-intensity exercise (MIE) and variable-intensity exercise (VIE). On separate days, the exercise bouts were performed in a counterbalanced order. Oxygen consumption (VO2) and heart rate (HR) were averaged over the bout. OMNI ratings of perceived exertion (RPE) and affect, via Feelings Scale, were measured in-exercise and enjoyment was measured post-exercise using the physical activity enjoyment scale. During VIE and MIE, HR and percent of maximal HR were significantly different. Absolute VO2 during VIE and MIE were 1.42 ± 0.22 L∙min-1 and 1.27 ± 0.24 L∙min-1, respectively (p=0.13). The intensities relative to VO2max were similar between bouts. Total EE of VIE and MIE were 212.5 ± 32.3 kcals and 189.4 ± 36.3 kcals, respectively (p=0.12). In-exercise affect and post-exercise enjoyment were greater in VIE than MIE, but RPE was similar. VIE was perceived as more enjoyable, while eliciting a greater HR response and similar energy expenditure as MIE.

Course

EXSS 499

External Presentation

1

Location

Lib Jackson Student Union, Atrium

Start Date

17-4-2019 4:30 PM

End Date

17-4-2019 6:30 PM

Disciplines

Sports Sciences

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Apr 17th, 4:30 PM Apr 17th, 6:30 PM

Exercise intensity, energy expenditure and enjoyment during variable high intensity exercise in healthy adults

Lib Jackson Student Union, Atrium

Examine exercise intensity, energy expenditure (EE), and perceptual responses to work-matched moderate-intensity exercise (MIE) and variable-intensity exercise (VIE). On separate days, the exercise bouts were performed in a counterbalanced order. Oxygen consumption (VO2) and heart rate (HR) were averaged over the bout. OMNI ratings of perceived exertion (RPE) and affect, via Feelings Scale, were measured in-exercise and enjoyment was measured post-exercise using the physical activity enjoyment scale. During VIE and MIE, HR and percent of maximal HR were significantly different. Absolute VO2 during VIE and MIE were 1.42 ± 0.22 L∙min-1 and 1.27 ± 0.24 L∙min-1, respectively (p=0.13). The intensities relative to VO2max were similar between bouts. Total EE of VIE and MIE were 212.5 ± 32.3 kcals and 189.4 ± 36.3 kcals, respectively (p=0.12). In-exercise affect and post-exercise enjoyment were greater in VIE than MIE, but RPE was similar. VIE was perceived as more enjoyable, while eliciting a greater HR response and similar energy expenditure as MIE.