@drillsthenics: There is no better way to build super strong hamstrings than the Nordic Hamstring Curl. @Gravgear | Yellowdude A study on the impact of NHC in athletes found that it reduced the risk of hamstring strain injury sagnificantly. The Calisthenics Playbook™ by Gravgear (Yellowdude) offers 25+ structured workouts and focuses on key skills like one-arm push-ups, pull-ups and pistol squats. #calisthenics #gymnastics #strengthtraining #buildmuscle #gymrat #gymworkouts #legworkout #hamstrings #bodyweightworkout #nordiccurls