Document Detail


Ventilatory responses and entrainment of breathing during rowing.
MedLine Citation:
PMID:  2017014     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this investigation was to investigate the hypothesis that respiration was coupled with the mechanics of the rowing stroke. In the first part of the study, physiologic responses during incremental exercise on the variable-resistance rowing ergometer were compared in 16 untrained female subjects (U), 17 collegiate female rowers (C), and 21 elite oarswomen (E). Minute ventilation (VE) and frequency of respiration (fR) were examined on a log scale as their relationship with oxygen consumption (VO2) was exponential. The slopes for log VE/VO2 were similar for collegiate (0.65 +/- 0.02) and elite (0.59 +/- 0.01) rowers, but the slope was significantly higher for the untrained (0.87 +/- 0.01) subjects (P less than 0.001). Elite rowers utilized a higher tidal volume (VT) response per VO2 (0.68 +/- 0.04 vs 0.30 +/- 0.05; P = 0.01) and lower log fR response per VO2 (0.27 +/- 0.02 vs 0.50 +/- 0.03; P = 0.01) compared with collegiate rowers. The ratio of fR/strokes per minute (SPM) averaged 1.5 in E athletes but varied in the U and C groups. In the second part of the study, pattern and timing of respiration were recording using an inspiratory pneumotachygraph, analyzed, and compared with specific phases of the rowing stroke in ten untrained subjects and nine elite rowers. The ratio of inspiratory time (T1)/total respiratory time (TTOT) decreased during the drive phase and increased during the recovery phase in both untrained subjects and elite rowers.(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
D A Mahler; C R Shuhart; E Brew; T A Stukel
Related Documents :
3549674 - Influence of inspiratory assistance on ventilatory control during moderate exercise.
24580674 - Blood lactate loads of redthroat emperor lethrinus miniatus associated with angling str...
5033464 - On the regulation of depth and rate of breathing.
9648174 - Breathing patterns and heart rate during simulated occupational upper limb tasks in nor...
3549674 - Influence of inspiratory assistance on ventilatory control during moderate exercise.
9853334 - Cardiac sympathetic nervous disintegrity is related to exercise intolerance in patients...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  23     ISSN:  0195-9131     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  1991 Feb 
Date Detail:
Created Date:  1991-05-23     Completed Date:  1991-05-23     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  186-92     Citation Subset:  IM; S    
Affiliation:
Department of Medicine, Dartmouth Medical School, Hanover, NH 03756.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Analysis of Variance
Anthropometry
Exercise / physiology*
Female
Humans
Oxygen Consumption
Respiration / physiology*
Respiratory Function Tests
Sports*
Grant Support
ID/Acronym/Agency:
HL 01217/HL/NHLBI NIH HHS

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


Previous Document:  Effect of ultrasound therapy on the repair of Achilles tendon injuries in rats.
Next Document:  Acute effects of resistance exercise on parameters of lipoprotein metabolism.