John M. Zajac

Decreased Shoulder External Rotation and Flexion Are Greater Predictors of Injury Than Internal Rotation Deficits: Analysis of 132 Pitcher‐Seasons in Professional Baseball

Christopher L. Camp, John M. Zajac, D. B. Pearson et al. · Arthroscopy The Journal of Arthroscopic and Related Surgery · 2017 · 86 citations

Medicine, Orthopaedic Surgery, Sports Medicine +8

Decreased Hip Internal Rotation Increases the Risk of Back and Abdominal Muscle Injuries in Professional Baseball Players: Analysis of 258 Player-seasons

Christopher L. Camp, Andrea M. Spiker, John M. Zajac et al. · Journal of the American Academy of Orthopaedic Surgeons · 2018 · 32 citations

Medicine, Kinesiology, Sports Medicine +17

The Impact of Workload on the Evolution of Hip Internal and External Rotation in Professional Baseball Players Over the Course of the Season

Christopher L. Camp, John M. Zajac, D. Pearson et al. · Orthopaedic Journal of Sports Medicine · 2018 · 27 citations · Full text

Medicine, Kinesiology, Sports Medicine +13

Upper Extremity and Hip Range of Motion Changes Throughout a Season in Professional Baseball Players

Justin M. Chan, John M. Zajac, Brandon J. Erickson et al. · The American Journal of Sports Medicine · 2019 · 21 citations

Medicine, Kinesiology, Sports Medicine +16

Do Professional Baseball Players With a Higher Valgus Carrying Angle Have an Increased Risk of Shoulder and Elbow Injuries?

Brandon J. Erickson, Peter N. Chalmers, John M. Zajac et al. · Orthopaedic Journal of Sports Medicine · 2019 · 17 citations · Full text

Medicine, Orthopaedic Surgery, Sports Medicine +14