treadmill sprints with 20 seconds of rest in between each sprint, done three times per week for four weeks up - regulated molecular signaling associated with mitochondrial biogenesis. (marksdailyapple.com)
Then complete 8 sets of 20 - second intervals for one of the following exercises: burpees, jumping jacks, mountain climbers, kettlebell swings, body - weight squats, treadmill sprint, bike sprint, rowing machine. (onnit.com)
There is strength in numbers and we created a quick circuit of medicine ball lunges and squat presses, burpees, treadmill sprints and Spiderman planks. (taylorwalkerfit.com)