Share: Title:The Reason You Can't Build Your BACK.! Start Doing PULL UPS #pullups #calisthenics #bodybuilding Duration: 0:20 Plays: 259 views Published: 1 year ago Download MP3 Download MP4 Simillar Videos ▶️ 0:20 Jack Lee-daily Video 259 views • 1 year ago ▶️ 0:16 Jack Lee Kicking Bag 540cheat 259 views • 7 years ago ▶️ 0:13 Jack Lee Tricks 259 views • 4 years ago ▶️ 0:14 Jack Lee 53 Yold Stay Focus 259 views • 1 year ago ▶️ 0:19 Targeting 🎯 Muscles:(i)rectus Abdominis(ii)hip Flexors(iii) Quadratus Lumborum #absworkout #abs 259 views • 2 months ago