Katherine E Reuther1, Ryan Larsen2, Pamela D Kuhn3, John D Kelly4, Stephen J Thomas5. 1. Department of Biomedical Engineering, Columbia University, New York, NY, USA. 2. Stevens Institute of Technology, Hoboken, NJ, USA. 3. Toms River High School North, Toms River, NJ, USA. 4. Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA. 5. Department of Kinesiology, Temple University, Philadelphia, PA, USA. Electronic address: sjthomasatc@temple.edu.
Abstract
BACKGROUND: The natural time course for recovery of glenohumeral internal rotation (IR) loss after a throwing episode is unknown. In addition, the effect of the sleeper stretch on the time course for recovery of motion after a throwing episode has never been investigated. Therefore, the objectives of this study were to (1) to determine the natural time course for spontaneous recovery of IR after a throwing episode and (2) to evaluate the effect of the sleeper stretch on the time course for recovery of IR after a throwing episode. METHODS: The study participants were 17 male high school baseball pitchers (aged 17.7 ± 0.9 years). A crossover designed was used over a 2-week period. For week 1, glenohumeral IR and external rotation (ER) were evaluated in the dominant shoulder 1 day before a throwing episode and at 2 hours, 1 day, 2 days, 3 days, 4 days, and 5 days after pitching. During week 2, participants completed a sleeper stretch protocol before measurements. RESULTS: The natural time course of spontaneous recovery for IR after a throwing episode was 4 days. Stretching reduced the time course of recovery for IR to 2 days. CONCLUSION: A sleeper stretch program for high school baseball pitchers can accelerate the recovery of commonly observed IR loss and also may mitigate the cumulative effects observed over the course of a season.
BACKGROUND: The natural time course for recovery of glenohumeral internal rotation (IR) loss after a throwing episode is unknown. In addition, the effect of the sleeper stretch on the time course for recovery of motion after a throwing episode has never been investigated. Therefore, the objectives of this study were to (1) to determine the natural time course for spontaneous recovery of IR after a throwing episode and (2) to evaluate the effect of the sleeper stretch on the time course for recovery of IR after a throwing episode. METHODS: The study participants were 17 male high school baseball pitchers (aged 17.7 ± 0.9 years). A crossover designed was used over a 2-week period. For week 1, glenohumeral IR and external rotation (ER) were evaluated in the dominant shoulder 1 day before a throwing episode and at 2 hours, 1 day, 2 days, 3 days, 4 days, and 5 days after pitching. During week 2, participants completed a sleeper stretch protocol before measurements. RESULTS: The natural time course of spontaneous recovery for IR after a throwing episode was 4 days. Stretching reduced the time course of recovery for IR to 2 days. CONCLUSION: A sleeper stretch program for high school baseball pitchers can accelerate the recovery of commonly observed IR loss and also may mitigate the cumulative effects observed over the course of a season.
Authors: Garrett S Bullock; Mallory S Faherty; Leila Ledbetter; Charles A Thigpen; Timothy C Sell Journal: J Athl Train Date: 2018-12-07 Impact factor: 2.860
Authors: Amr Tawfik; Gregory R Toci; Francis Sirch; Brian Gibbs; Evan Conte; Daniel Fletcher; Joshua Hornstein; Christopher Aland Journal: Cureus Date: 2022-02-25