Document Detail


Lower extremity blood flow and responses to occlusion ischemia differ in exercise-trained and sedentary tetraplegic persons.
MedLine Citation:
PMID:  8976309     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To test whether lower extremity blood flow and hyperemic responses to vascular occlusion differ among electrically stimulated exercise trained and sedentary tetraplegic persons and subjects without tetraplegia (control). DESIGN: Blinded cross-sectional comparison, control group. SETTING: Academic medical center. PARTICIPANTS: Ten sedentary tetraplegic men, 10 tetraplegic persons previously habituated to electrically stimulated cycling exercise for 0.4 to 7 years, and 10 nondisabled controls. OUTCOME MEASURES: Subjects underwent quantitative Doppler ultrasound examination of the common femoral artery (CFA). End-diastolic arterial images and arterial flow-velocity profiles obtained at rest and following five minutes of suprasystolic thigh occlusion were computer digitized for analysis of heart rate (HR), CFA peak systolic velocity (PSV), CFA cross-sectional area (CSA), flow velocity integral (FVI), and computed CFA inflow volume (IV). RESULTS: No group main effects were observed for resting HR or FVI. At rest, trained tetraplegic men had 14.9% greater PSV, 29.8% larger CSA, and 51.3% greater IV (p values < .05) than sedentary tetraplegic subjects. Resting PSV and IV of the trained subjects did not differ from controls, although CSA was smaller than controls (p < .05). Following occlusion, PSV, CSA, and IV averaged 16.5%, 33.4%, and 65.1% greater for trained tetraplegics persons, respectively, than sedentary tetraplegic subjects (p values < .05). Only CSA differed between the control and the trained groups (p < .05). CONCLUSION: Tetraplegic persons conditioned by electrically stimulated cycling have greater lower extremity blood flow and hyperemic responses to occlusion than do their sedentary counterparts.
Authors:
M S Nash; B M Montalvo; B Applegate
Related Documents :
17045979 - Beneficial effects of endurance training on cardiac and skeletal muscle energy metaboli...
18813189 - Exercise training in prevention and rehabilitation: which training mode is best?
2745349 - Peripheral effects of endurance training in young and old subjects.
922079 - Instrumental conditioning of human heart rate during free and controlled respiration.
12003279 - The menstrual cycle and its effect on the immune status of female endurance runners.
22629249 - Effects of physical activity and inactivity on muscle fatigue.
18054709 - Influence of the trp64arg polymorphism in the beta 3 adrenoreceptor gene on insulin res...
22407329 - Exercise thermoregulatory responses following a 28-day sleep-high train-low regimen.
8847299 - Effect of dichloroacetate on paco2 responses to hypoxia in awake goats.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Archives of physical medicine and rehabilitation     Volume:  77     ISSN:  0003-9993     ISO Abbreviation:  Arch Phys Med Rehabil     Publication Date:  1996 Dec 
Date Detail:
Created Date:  1997-01-16     Completed Date:  1997-01-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985158R     Medline TA:  Arch Phys Med Rehabil     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1260-5     Citation Subset:  AIM; IM    
Affiliation:
Department of Orthopedics and Rehabilitation, University of Miami School of Medicine, FL, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Blood Flow Velocity
Cross-Sectional Studies
Electric Stimulation Therapy
Exercise*
Femoral Artery / physiopathology,  ultrasonography
Humans
Hyperemia / physiopathology*
Leg / blood supply*
Male
Quadriplegia / physiopathology*,  rehabilitation
Regional Blood Flow
Signal Processing, Computer-Assisted

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


Previous Document:  Acute effects of acupuncture on physiological and psychological responses to cycle ergometry.
Next Document:  Wheelchair safety: effect of locking or grasping the rear wheels during a rear tip.