Document Detail


The impact of cold-water immersion on power production in the vertical jump and the benefits of a dynamic exercise warm-up.
MedLine Citation:
PMID:  21068679     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The purpose of this study was to examine the influence of a cold treatment and a dynamic warm-up on lower body power in the form of a countermovement vertical jump (CMVJ). Nine physically active men, who were either current or ex-National Collegiate Athletic Association (NCAA) Division 1 athletes, consented to participate in the study. Using a balanced, randomized presentation and a within-subject design, each subject performed 4 environmental and warm-up protocols (i.e., ambient temperature without warm-up, ambient temperature with warm-up, cold without warm-up, or cold with warm-up). Two sets of 3 maximal effort CMVJs were performed on a force plate at each testing time point. For each protocol, the subjects completed a pretest set of CMVJ (pretreatment [PRE]), were then exposed to 1 of the 2 temperature treatments, completed another set of CMVJ (initial [IT]), then either went through a 15-minute warm-up, or were asked to sit in place. Then a final set of CMVJs was completed (posttreatment [PT]). The primary finding in this study was that warm-up was effective in offsetting the negative effects of cold exposure on CMVJ power. There was a significant main effect for Time (PRE > PT > IT), and there was a significant (p ≤ 0.05) main effect for Trial (AMB = AMBWU > COLDWU > COLD). Because athletic competitions happen in various colder climates, it is important to make sure that a proper warm-up be completed to maximize the athlete's power output. The results of this study demonstrate that when athletes are exposed to cold conditions, it is recommended that before practice or play, a dynamic warm-up be employed to optimize performance.
Authors:
Patrick G Dixon; William J Kraemer; Jeff S Volek; Robert L Howard; Ana L Gomez; Brett A Comstock; Courtenay Dunn-Lewis; Maren S Fragala; David R Hooper; Keijo Häkkinen; Carl M Maresh
Related Documents :
12767289 - Simultaneous effects of environmental factors on motile aeromonas dynamics in an urban ...
2568419 - Topical application of penetration enhancers to the skin of nude mice: a histopathologi...
9628229 - Ventilatory response to asphyxia in conscious rats: effect of ambient and body temperat...
12872329 - Paramyotonia congenita due to a de novo mutation: a case report.
16892629 - Enhanced cold and desiccation tolerance in diapausing adults of culex pipiens, and a ro...
2847369 - Skin irritancy of commercially available alkyl ether sulphate surfactants: is there a d...
23790819 - Considerations for initiating and progressing running programs in obese individuals.
14603549 - Facilitating exercise adherence for patients with multiple myeloma.
12804369 - Cenozoic bolide impacts and biotic change in north american mammals.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  24     ISSN:  1533-4287     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3313-7     Citation Subset:  IM    
Affiliation:
Human Performance Laboratory, Department of Kinesiology, University of Connecticut, Storrs, Connecticut, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

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


Previous Document:  Validity of a squash-specific test of multiple-sprint ability.
Next Document:  Surface electromyographic activation patterns and elbow joint motion during a pull-up, chin-up, or p...