 |
| Research article summary (published 29 Apr 2002): |
Fitness levels of firefighter recruits before and after a supervised exercise training program.
Full Abstract
Federal law prohibits pre-employment physical examination of firefighter recruits, but these workers must perform intense exercise in arduous environments. Components of physical fitness of rookie firefighters (n = 115; 104 men, mean +/-
SD:
age = 28.3 +/- 4.3 years; height = 1.76 +/- 0.07 m; weight = 83.2 +/- 13.9 kg; percent body fat = 17 +/- 8%) were measured upon being hired and following a 16-week exercise training program (1 h.d(-1), 3 d.wk(-1)) designed to improve physical fitness. Maximum aerobic capacity (VO2max) was estimated from submaximal cycle ergometry, body composition from skinfold tests, flexibility from a sit and reach test, strength by hand grip dynamometry, and muscle endurance by a push-up test. The results are as follows (*, p <or= 0.007 vs. pretraining):
VO2max increased by 28% (35 +/- 7 to 45 +/- 6* ml.kg(-1).min(-1), 88 +/- 20 to 113 +/- 17%* of predicted increase); muscle endurance increased (41 +/- 13 to 51 +/- 14* push-ups); flexibility increased (0.34 +/- 0.07 to 0.35 +/- 0.07* m); muscle strength tended to increase (102.9 +/- 18.7 to 105.4 +/- 18.7 kg, p = 0.06); body weight tended to decrease (83.2 +/- 13.9 to 82.7 +/- 13.2 kg, p = 0.06); lean tissue weight increased (68.8 +/- 9.9 to 69.9 +/- 9.5* kg); and fat weight decreased (14.6 +/- 8.0 to 13.0 +/- 7.1* kg). We concluded that aerobic capacity was 20% lower before training than that deemed sufficient for safe performance of fire suppression duties; that training improved aerobic capacity by 28%, decreased fat and increased lean tissue weight, and increased/tended to increase other components of physical fitness. Prior to initiation of this training program, aerobic capacity of these firefighters was below that deemed appropriate for performing fire suppression duties. Training resulted in a large increase in aerobic capacity, so that the trainees ended the program with an aerobic capacity considered appropriate for fighting fires. It is hoped that the results of this study will encourage those who oversee workers who are responsible for the public's safety to mandate assessment of physical fitness of new hires, with mandatory participation in exercise training for those new hires who are found to possess less than appropriate aerobic capacity.
Learn Faster Today Improve your study skills
Author information
Author/s: Roberts, Melanie A (MA); O'Dea, John (J); Boyce, Anthony (A); Mannix, Edward T (ET);
Affiliation: The National Institute for Fitness and Sport, Indianapolis, Indiana 46202, USA.
Journal and publication information
Publication Type: Clinical Trial; Comparative Study; Journal Article
Journal: Journal of strength and conditioning research / National Strength & Conditioning Association (J Strength Cond Res), published in United States. (Language: eng)
Reference: 2002-May; vol 16 (issue 2) : pp 271-7
Dates: Created 2002/05/06; Completed 2002/07/17; Revised 2006/11/15;
PMID: 11991781, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
External Links for this article (including full text providers, if available):
Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.
This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.
MeSH headings (categories)
This article was linked to the MESH Headings shown below.
|
|
Related articles
This article has not been indexed for related articles as yet, however you can still use the live related article search links below.
See a large map of 100+ related articles.