EurekaMag.com logo
+ Site Statistics
References:
53,869,633
Abstracts:
29,686,251
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

The effect of an anti-G suit on cardiovascular responses to exercise in persons with paraplegia



The effect of an anti-G suit on cardiovascular responses to exercise in persons with paraplegia



Medicine and Science in Sports and Exercise 24(9): 984-990



The purpose of this study was to determine whether external pressure on legs and abdomen could prevent venous blood pooling in persons with paraplegia and thus positively affect their cardiovascular responses to arm exercise. To investigate this, five male subjects with paraplegia (P), with complete lesions between T6 and T12, and five male control subjects who were wheelchair bound (C) (due to a chronic lower extremity disability), performed submaximal arm-cranking exercise at 20%, 40%, and 60% of their maximal power output (Wmax), with and without an antigravity (anti-G) suit inflated to 52 mm Hg (1 psi). For P, higher preexercise systolic pressure (127 vs 117 mm Hg) was seen with the anti-G suit. At 40 and 60% Wmax, significantly lower heart rates (at 40% = 5.7%; at 60% = 10.6%) at similar cardiac outputs were seen for P with an anti-G suit. Although not significant, P also demonstrated higher stroke volumes at 40% (4.8%) and 60% (5.0%) Wmax with external pressure. For C, no differences in preexercise blood pressure or cardiovascular responses at all three exercise levels were seen with or without the anti-G suit. These data suggest that an inflated anti-G suit is able to prevent venous blood pooling and offers hemodynamic benefits in persons with paraplegia during submaximal arm-cranking exercise. In addition, this study reports a possible alternative to hosiery or functional neuromuscular stimulation that could be applied to all subjects with spinal cord injuries regardless of type or duration of the lesion or of muscle-atrophy.

(PDF emailed within 0-6 h: $19.90)

Accession: 041617956

Download citation: RISBibTeXText

PMID: 1406199

DOI: 10.1249/00005768-199209000-00006



Related references

Cardiovascular responses in persons with paraplegia to prolonged arm exercise and thermal stress. Medicine and Science in Sports and Exercise 25(5): 577-583, 1993

The effect of lower body positive pressure on the cardiovascular response to exercise in sedentary and endurance-trained persons with paraplegia. European Journal of Applied Physiology and Occupational Physiology 78(2): 141-147, 1998

The effect of training on endurance and the cardiovascular responses of individuals with paraplegia during dynamic exercise induced by functional electrical stimulation. European Journal of Applied Physiology & Occupational Physiology 64(6): 487-492, 1992

The effect of an anti-G suit on the maximal performance of individuals with paraplegia. International Journal of Sports Medicine 14(7): 357-361, 1993

Cardiovascular responses during arm exercise and orthostatic challenge in individuals with paraplegia. European Journal of Applied Physiology 85(1-2): 89-95, 2001

A comparison of 2 circuit exercise training techniques for eliciting matched metabolic responses in persons with paraplegia. Archives of Physical Medicine and Rehabilitation 83(2): 201-209, 2002

Influence of posture on arm exercise tolerance and physiologic responses in persons with spinal cord injured paraplegia. European Journal Of Applied Physiology & Occupational Physiology. 67(6): 563-566, 1993

The effects of an anti g suit on the exercise responses of spinal cord injured individuals. Medicine & Science in Sports & Exercise 24(5 SUPPL): S18, 1992

The effects of an anti-G-suit on wheelchair exercise responses of spinal cord injured individuals. Medicine & Science in Sports & Exercise 25(5 SUPPL ): S104, 1993

Feasibility for developing cardiovascular exercise recommendations for persons with motor-complete paraplegia based on manual wheelchair propulsion; A protocol and preliminary data. Journal of Spinal Cord Medicine 39(1): 45-49, 2016

Effects of graduated compression stockings on cardiovascular and metabolic responses to exercise and exercise recovery in persons with spinal cord injury. Archives of Physical Medicine and Rehabilitation 88(6): 703-709, 2007

Exercise and gait training in persons with paraplegia and its effect on muscle properties. Journal of Back and Musculoskeletal Rehabilitation 28(4): 739-747, 2016

Anti-G suit effect of cardiovascular dynamic changes due to +GZ stress. Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology 43(5): 765-769, 1977

Effect of antigravity suit inflation on cardiovascular, PRA, and PVP responses in humans. Journal of Applied Physiology 61(2): 766-774, 1986

Effect of extending G-suit coverage on cardiovascular responses to positive pressure breathing. Aviation, Space, and Environmental Medicine 64(12): 1101-1107, 1993