How to build up to a 12-minute plank | by Brett A. Hurt | Medium
Dr. Subhasree Ray on Twitter: "5-minute plank. In addition to the core, this exercise helps in strengthening the muscles in your back, chest, arms, thighs, and shoulders. Implement in phases. https://t.co/qURugpGAvT" /
30 Days to a 5 Minute Plank & Rock-Hard Abs | Physical Living | Health-First Fitness
5-Minute Daily Plank Workout
SOLUTION: 5 Minute Workout That Will Transform Your Body in 30 Days Summary - Studypool