Grip Strength Measurement in Baseball Pitchers: A Clinical Examination to Indicate Stride Length Inefficiency

# Background Ulnar collateral ligament injuries are rampant in the sport of baseball where kinetic chain impacts, stemming from misappropriation of stride length or changes that occur in competition due to fatigue, have not been evaluated for dynamic elbow stability effects. # Hypothesis/Purpose...

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Autores principales:	Ryan Crotin, Dan Ramsey
Formato:	article
Lenguaje:	EN
Publicado:	North American Sports Medicine Institute 2021
Materias:	Sports medicine RC1200-1245
Acceso en línea:	https://doaj.org/article/a2a442d07a9149df80645ca436a4aa0c
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spelling	oai:doaj.org-article:a2a442d07a9149df80645ca436a4aa0c2021-12-02T15:33:58ZGrip Strength Measurement in Baseball Pitchers: A Clinical Examination to Indicate Stride Length Inefficiency2159-2896https://doaj.org/article/a2a442d07a9149df80645ca436a4aa0c2021-10-01T00:00:00Zhttps://ijspt.scholasticahq.com/article/28086-grip-strength-measurement-in-baseball-pitchers-a-clinical-examination-to-indicate-stride-length-inefficiency.pdfhttps://doaj.org/toc/2159-2896# Background Ulnar collateral ligament injuries are rampant in the sport of baseball where kinetic chain impacts, stemming from misappropriation of stride length or changes that occur in competition due to fatigue, have not been evaluated for dynamic elbow stability effects. # Hypothesis/Purpose To examine the relationship between clinical measures of grip strength and altered stride length in baseball pitchers. It is believed that shorter stride lengths would reduce grip strength in baseball pitchers. # Study Design Crossover Study Design # Methods A total of 19 uninjured pitchers (15 collegiate and 4 high school) (age 18.63 ± 1.67 years, height 1.84 ± 0.054 m, mass 82.14 ± 0.054 kg) threw two simulated 80-pitch games at ±25% of their desired stride length recorded by motion capture with two force plates and a radar gun to track each throw. A handheld grip dynamometer was used to record the mean change in grip strength after games from baseline measures. Pairwise comparisons at baseline and post-game denoted grip strength changes and dominant grip strength offsets for stride length conditions. # Results Subjects with shorter stride lengths revealed a significant decline in grip strength in the dominant arm from baseline (pre-game; 45.1 kg vs. post-game; 43.2 kg, p=0.017, ES=0.28), however all other tests involving dominant grip strength changes and offset analyses were not statistically different for under-stride and over-stride length conditions. # Conclusions Clinical evaluation of grip strength has the potential to identify altered lower body mechanics and may be considered as a safe and effective monitoring strategy to integrate with motion capture in determining optimal stride lengths for baseball pitchers. # Level of Evidence Level 3Ryan CrotinDan RamseyNorth American Sports Medicine InstitutearticleSports medicineRC1200-1245ENInternational Journal of Sports Physical Therapy, Vol 16, Iss 5 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Sports medicine RC1200-1245
spellingShingle	Sports medicine RC1200-1245 Ryan Crotin Dan Ramsey Grip Strength Measurement in Baseball Pitchers: A Clinical Examination to Indicate Stride Length Inefficiency
description	# Background Ulnar collateral ligament injuries are rampant in the sport of baseball where kinetic chain impacts, stemming from misappropriation of stride length or changes that occur in competition due to fatigue, have not been evaluated for dynamic elbow stability effects. # Hypothesis/Purpose To examine the relationship between clinical measures of grip strength and altered stride length in baseball pitchers. It is believed that shorter stride lengths would reduce grip strength in baseball pitchers. # Study Design Crossover Study Design # Methods A total of 19 uninjured pitchers (15 collegiate and 4 high school) (age 18.63 ± 1.67 years, height 1.84 ± 0.054 m, mass 82.14 ± 0.054 kg) threw two simulated 80-pitch games at ±25% of their desired stride length recorded by motion capture with two force plates and a radar gun to track each throw. A handheld grip dynamometer was used to record the mean change in grip strength after games from baseline measures. Pairwise comparisons at baseline and post-game denoted grip strength changes and dominant grip strength offsets for stride length conditions. # Results Subjects with shorter stride lengths revealed a significant decline in grip strength in the dominant arm from baseline (pre-game; 45.1 kg vs. post-game; 43.2 kg, p=0.017, ES=0.28), however all other tests involving dominant grip strength changes and offset analyses were not statistically different for under-stride and over-stride length conditions. # Conclusions Clinical evaluation of grip strength has the potential to identify altered lower body mechanics and may be considered as a safe and effective monitoring strategy to integrate with motion capture in determining optimal stride lengths for baseball pitchers. # Level of Evidence Level 3
format	article
author	Ryan Crotin Dan Ramsey
author_facet	Ryan Crotin Dan Ramsey
author_sort	Ryan Crotin
title	Grip Strength Measurement in Baseball Pitchers: A Clinical Examination to Indicate Stride Length Inefficiency
title_short	Grip Strength Measurement in Baseball Pitchers: A Clinical Examination to Indicate Stride Length Inefficiency
title_full	Grip Strength Measurement in Baseball Pitchers: A Clinical Examination to Indicate Stride Length Inefficiency
title_fullStr	Grip Strength Measurement in Baseball Pitchers: A Clinical Examination to Indicate Stride Length Inefficiency
title_full_unstemmed	Grip Strength Measurement in Baseball Pitchers: A Clinical Examination to Indicate Stride Length Inefficiency
title_sort	grip strength measurement in baseball pitchers: a clinical examination to indicate stride length inefficiency
publisher	North American Sports Medicine Institute
publishDate	2021
url	https://doaj.org/article/a2a442d07a9149df80645ca436a4aa0c
work_keys_str_mv	AT ryancrotin gripstrengthmeasurementinbaseballpitchersaclinicalexaminationtoindicatestridelengthinefficiency AT danramsey gripstrengthmeasurementinbaseballpitchersaclinicalexaminationtoindicatestridelengthinefficiency
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Grip Strength Measurement in Baseball Pitchers: A Clinical Examination to Indicate Stride Length Inefficiency

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