5/3/1 program explained | the most popular strength program? | professional powerlifter reviews Published 1 year ago • 378K plays • Length 12:44 Download video MP4 Download video MP3 Similar videos 1:51 steven purugganan speed stacking champ 8:44 stackfast - part 6 - the cycle (how to stack) 0:54 what is sport stacking? 0:54 50 years in the fast lane. here’s to 50 more! 0:33 unlock the power of 'can' in english 0:31 stop training like powerlifters! #shorts