The purpose of this study is to investigate the suitability of intermittent exercise of long and short intervals at lower intensities than HIIE on energy expenditure during and post-exercise compared to MICE, as well as determine whether similar or greater effects can be achieved for glycemic control in recreationally active adults.
The same procedure will be repeated for all trials: Participants will be asked to perform 3 trials in a randomized-crossover design \[moderate-intensity continuous running (MICE: 60% V̇O2max), 5-minute interval running (5MIN; 50% and 70% V̇O2max), 2-minute interval running (2MIN; 50% and 70% V̇O2max)\]. All trials will be separated by at least 4 days wash-out and less than 14 days between trials to ensure complete rest. Sensors for measuring muscle oxygen (10 cm proximal to the mid-patella, and 2 cm lateral) will be placed on the rectus femoris muscle and 15 min resting metabolic rate was measured. After baseline measurements, participants warm-up for 3 minutes with fixed walking intensity (i.e., 5 km/h) followed by 40 minutes running. Immediately after the running, participants return to a seated position for 30 minutes post-exercise measurements (EPOC). During the EPOC and resting metabolic rate (RMR) measurement participants will sit in a comfortable position and need to limit fidgeting, thus allowed only to watch TV or videos on their phone. Participants will be wheeled to the bathroom if needed.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
16
Participants run continuously for 40 minutes at moderate intensity (60-65% V̇O2max)
Participants run for 40 minutes at average moderate intensity with 5-minutes slow and fast cycles where speed is increased and decreased by 20%.
Participants run for 40 minutes at average moderate intensity with 2-minutes slow and fast cycles where speed is increased and decreased by 20%.
National Taiwan Normal University
Taipei, Taiwan
RECRUITINGTotal energy expenditure
Changes in total energy expenditure during 40-minutes running and 30 minutes of EPOC
Time frame: 70 minutes
Substrate utilisation
Changes in substrate utilisation during 40-minutes running and 30 minutes of EPOC
Time frame: 70 minutes
Muscle oxygen saturation
Changes in muscle oxygen during 40 minutes running and 30 minutes EPOC
Time frame: 70 minutes
Subjective appetite sensation
Changes in subjective feeling of appetite using 0-100 mm scale (e.g., hunger and satisfaction) during trials
Time frame: 70 minutes
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