13:24

James Steele's High Intensity Training Workout | HITuni

4:54

Doug McGuff, MD on The Best Routine, Frequency of Training and Recovery for the Over-40s | HITuni

36:06

ARX | Dr. Doug McGuff - Full Workout on ARX

5:46

Keys to strength training: frequency, failure, eccentric overload and advanced techniques | HITuni

8:36

Doug McGuff, MD on The Difference of Training in your 20s and 40s | HITuni

13:49

Workout 10/16/18

5:29

The Story Behind Body By Science | HITuni

5:11

$7 Infimetric Bar