Skip to main content Skip to main navigation menu Skip to site footer
Published: 2019-10-29

Assessment of throwing arm biomechanics with a motusBASEBALLTM pitching sleeve during long-toss throws and pitching in college baseball pitchers

Brooks Rehabilitation College of Healthcare Sciences, Jacksonville University, 2800 University Blvd North, Jacksonville, FL 32211 USA.
Motus Global, 200 Sunrise Hwy, Rockville Centre, NY, 11570 USA
Brooks Rehabilitation College of Healthcare Sciences, Jacksonville University, 2800 University Blvd North, Jacksonville, FL 32211 USA.
Throwing shoulder Elbow varus torque Overhand athlete Throwing kinematics
Downloads

Abstract

In baseball, long-toss throws are commonly used in return-to-throw programs and for general conditioning; however, the majority of these programs are based on conventional wisdom. Few studies have examined the biomechanics of long-toss throwing and the impact of throw distance. The purpose of this study was to determine if significant differences exist among commonly-used sub-maximal distance long-toss throws and mound pitching. Nineteen college baseball pitchers (19 ± 1.3 years; 88.3 ± 8.4 kg; and 73.9 ± 18.6 cm) wore a motusBASEBALL™ sleeve and sensor which measured peak elbow varus torque (VT), peak forearm angular velocity (Vmax), and peak arm-cocking angle (ACA). Each player completed five long-toss throws at distances of 27 m, 37 m, 46 m, 55 m and five pitches from a mound at regulation (18.4 m). There were no significant differences among throwing conditions for both VT and Vmax (p<0.05). For ACA, there was a significant increase (approximately 12°) as the long-toss distance increased. Coaches and trainers should be aware that sub-maximal distance long-toss throws (27 - 55 m+) generate high-magnitude throwing arm biomechanics (kinetics, velocities, range of motion) that approach or even exceed those generated during pitching; precaution needs to be used when implementing long-tosses into throwing and rehabilitation programs.

Downloads

Download data is not yet available.

How to Cite

Jeff T. Wight, Brittany Dowling, & Jaclyn O’Loughlin. (2019). Assessment of throwing arm biomechanics with a motusBASEBALLTM pitching sleeve during long-toss throws and pitching in college baseball pitchers . International Journal of Physical Education, Fitness and Sports, 8(4), 36-44. https://doi.org/10.26524/ijpefs1944


Abstract Views 28