NDLI: Hemodynamic responses of quadriplegics to maximal arm-cranking and FNS leg cycling exercise

Content Provider	IEEE Xplore Digital Library
Author	Figoni, S.F. Glaser, R.M. Hendershot, D.M. Gupta, S.C. Suryaprasad, A.G. Rodgers, M.M. Ezenwa, B.N.
Copyright Year	1992
Description	Author affiliation: Sch. of Med., Wright State Univ., Dayton, OH, USA (Figoni, S.F.; Glaser, R.M.; Hendershot, D.M.; Gupta, S.C.; Suryaprasad, A.G.; Rodgers, M.M.; Ezenwa, B.N.)
Abstract	The purpose of this study was to compare maximal central hemodynamic responses of spinal-cord-injured quadriplegic subjects to voluntary arm-crank exercise (ACE) and to electrically induced leg cycling exercise. Six C6-C7 quadriplegic men performed graded exercises to maximum with both an arm-crank ergometer and a leg-cycle ergometer, utilizing functional neuromuscular stimulation (FNS) of paralyzed leg musculature. Both exercise modes produced a V-dot O/sub 2/ peak of approximately 1 l/min, with peak power outputs for the arm and leg exercises of 38 and 11 W, respectively. Compared with voluntary ACE, FNS cycling elicited a significantly higher mean cardiac output, stroke volume, and mean arterial blood pressure, and significantly lower mean heart rate and rate-pressure product. While maximal FNS cycling is mechanically less efficient than ACE, it appears to produce a more desirable hemodynamic response pattern, i.e. greater venous return and cardiac volume-load with less myocardial stress. Thus, FNS leg cycling may be more effective than ACE for aerobic cardiovascular training of quadriplegics.<>
Starting Page	1636
Ending Page	1637
File Size	394232
Page Count	2
File Format	PDF
ISBN	0780307852
DOI	10.1109/IEMBS.1988.94819
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1988-11-04
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hemodynamics Leg Cardiology Heart rate Spinal cord Performance evaluation Neuromuscular stimulation Impedance Arterial blood pressure Muscles
Content Type	Text
Resource Type	Article

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