Document Detail


High school and college baseball pitchers response and glove movements to line drives.
MedLine Citation:
PMID:  16760564     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The timing of glove movements used by baseball pitchers to catch fast approaching balls (i.e., line drives) was examined in two tests to determine the responses and temporal characteristics of glove movements in high school and college baseball pitchers. Balls were projected toward the head of participants at 34.8 m.s-1 (78 mph) on average in an indoor test and at speeds approaching 58.1 m.s-1 (130 mph) in a field test. Pitchers caught over 80% and 15% of the projected balls in the indoor and field tests, respectively. Analyses of glove responses indicated that all pitchers could track the line drives and produce coordinated glove movements, which were initiated 160 ms (+/-47.8), on average, after the ball was launched. College pitchers made initial glove movements sooner than high school pitchers in the field test (p=0.012). In contrast, average glove velocity for pitchers increased from 1.33 (+/-0.61) to 3.45 (+/-0.86) m.s-1 across the tests, but did not differ between experience levels. Glove movement initiation and speed were unrelated, and pitchers utilized visual information throughout the ball's flight to catch balls that approached at speeds exceeding the estimated speeds in competitive situations.
Authors:
Douglas E Young; Doris Trachtman; Irving S Scher; Richard A Schmidt
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of applied biomechanics     Volume:  22     ISSN:  1065-8483     ISO Abbreviation:  J Appl Biomech     Publication Date:  2006 Feb 
Date Detail:
Created Date:  2006-06-08     Completed Date:  2006-07-13     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9315240     Medline TA:  J Appl Biomech     Country:  United States    
Other Details:
Languages:  eng     Pagination:  25-32     Citation Subset:  IM    
Affiliation:
Exponent, Los Angeles, CA, USA.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Arm / physiology
Baseball / physiology*
Biomechanics*
Gloves, Protective
Hand / physiology
Humans
Male
Movement / physiology*
Reaction Time / physiology*
Schools*
Sports Equipment*
Universities*
Vision, Ocular / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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