Document Detail

Effect of short-term training cessation on performance measures in distance runners.
MedLine Citation:
PMID:  1487339     Owner:  NLM     Status:  MEDLINE    
This study examined if measures associated with distance running performance were affected by short-term (14 d) training cessation in 12 distance runners. VO2max decreased by approximately 3 (mean +/- SE, 61.6 +/- 2.0 vs 58.7 +/- 1.8, p < 0.05) with training cessation. Time to exhaustion (TTE) during the incremental VO2max test decreased by 1.2 min (13.0 +/- 0.5 vs 11.8 +/- 0.5 min, p < 0.001) and maximal heart rate increased (p < 0.001) by 9 beats per minute (BPM). No changes in running economy (75 and 90% VO2max) were evident, although submaximal heart rate increased by 11 BPM (p < 0.001) at both running speeds. Other evidence for detraining were decreases in estimated resting plasma volume (-5.1 +/- 1.9%) and muscle citrate synthase activity (-25.3 +/- 2.6%, p < 0.05). Muscular atrophy (muscle fiber cross-sectional area) was not evident. TTE and submaximal heart rate exhibited relatively large percent changes (-9 and +6%, respectively) compared to VO2max (-4%). These findings indicate that the reduction in VO2max with short-term training cessation is relatively small. TTE and submaximal heart rate may be easily measured, yet more sensitive indicators of decrements in distance running performance.
J A Houmard; T Hortobágyi; R A Johns; N J Bruno; C C Nute; M H Shinebarger; J W Welborn
Related Documents :
10914319 - Role of base plate rotational speed in controlling spheroid size distribution and minim...
3115419 - Faecal blood loss in response to exercise.
8804659 - Tests of running performance do not predict subsequent spontaneous running in rats.
8081319 - Cardiovascular adaptations in 8- to 12-year-old boys following a 14-week running program.
14767399 - Maximal but not submaximal performance is reduced by constant-speed 10-km run.
12741869 - Physiological cost of running while wearing spring-boots.
22692119 - Physiological and performance responses to intermittent uchi-komi in judo.
12270029 - Semen analysis and external quality control schemes for semen analysis need global stan...
2145749 - Simultaneous measurement of myocardial perfusion and ventricular function during exerci...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of sports medicine     Volume:  13     ISSN:  0172-4622     ISO Abbreviation:  Int J Sports Med     Publication Date:  1992 Nov 
Date Detail:
Created Date:  1993-02-19     Completed Date:  1993-02-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  572-6     Citation Subset:  IM    
Human Performance Laboratory, East Carolina University, Greenville, North Carolina 27858.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Body Composition
Heart Rate
Oxygen Consumption
Physical Education and Training*
Physical Endurance*
Running / physiology*
Task Performance and Analysis*
Time Factors

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

Previous Document:  Reliability of the rating of perceived exertion at ventilatory threshold in children.
Next Document:  The effect of exercise training on salivary immunoglobulin A and cortisol responses to maximal exerc...