Effects of Intermittent Running on Metabolic Health

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.