Document Detail


Physiological responses and bowling performance during repeated spells of medium-fast bowling.
MedLine Citation:
PMID:  18979337     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of the present study was to investigate the relationship between physiological and performance responses during repeated 6-over fast-bowling spells. Six, first-class, medium-fast bowlers performed 2x6-over spells separated by 45 min of light activity. The 6-over spells were based on the Cricket Australia fast bowling skills test that is a set order of deliveries at a grid-based target. Ball speed, accuracy and full and final 5-m run-up speed were measured on each ball. Nude mass, heart rate, core temperature, capillary blood lactate, pH and glucose, perceptual measures of RPE and muscle soreness (MS) and repeated vertical jump efforts were measured prior to, during and following each spell. Results indicated no decrement (P=0.41) and small effect sizes (d<0.2) in bowling speed (125.7+/-5.1 and 125.4+/-4.5 km.h(-1)) or accuracy (40.4+/-16.1 and 41.6+/-18.0 AU) between spells 1 and 2. No differences (P=0.6-0.8) were present between spells for heart rate, core temperature, lactate, pH, glucose, RPE, MS or vertical jump. Only final 5-m run-up speed showed a large correlation with ball speed (r=0.70), while accuracy and speed were not correlated (r=0.05). In conclusion, repeated 6-over spells in well-trained bowlers results in minimal performance decrement in mild conditions (22 degrees C). As faster bowlers had faster final 5-m run-up speeds, the maintenance of high final 5-m run-up speeds might be important to maintaining bowling speed. Future research should also include a third bowling spell and warmer environmental conditions.
Authors:
Rob Duffield; Mitchell Carney; Stuart Karppinen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of sports sciences     Volume:  27     ISSN:  0264-0414     ISO Abbreviation:  J Sports Sci     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2008-12-26     Completed Date:  2009-03-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8405364     Medline TA:  J Sports Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  27-35     Citation Subset:  IM    
Affiliation:
Charles Sturt University, School of Human Movement, Bathurst, Australia. rduffield@csu.edu.au
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MeSH Terms
Descriptor/Qualifier:
Adult
Athletic Performance*
Australia
Biophysics
Blood Glucose / metabolism
Body Temperature / physiology
Body Weight / physiology
Heart Rate / physiology
Humans
Hydrogen-Ion Concentration
Lactic Acid / blood
Male
Muscle, Skeletal
Pain
Physical Exertion / physiology
Sports / physiology*,  psychology
Young Adult
Chemical
Reg. No./Substance:
0/Blood Glucose; 50-21-5/Lactic Acid

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


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