Arm crank ergometry improves cardiovascular disease risk factors and community mobility independent of body composition in high motor complete spinal cord injury

James J. Bresnahan, Gary J. Farkas, Jody L. Clasey, James W. Yates, David R. Gater

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Objective: Evaluate the effect of aerobic exercise using arm crank ergometry (ACE) in high motor complete (ISNCSCI A/B) spinal cord injury (SCI) as primarily related to cardiovascular disease (CVD) risk factors and functional mobility and secondarily to body composition and metabolic profiles. Design: Longitudinal interventional study at an academic medical center. Methods: Ten previously untrained participants (M8/F2, Age 36.7 y ± 10.1, BMI 24.5 ± 6.0) with high motor complete SCI (C7-T5) underwent ACE exercise training 30 minutes/day × 3 days/week for 10 weeks at 70% VO 2Peak . Outcome Measures: Primary outcome measures were pre- and post-intervention changes in markers of cardiovascular fitness (graded exercise testing (GXT): VO 2 , VO 2Peak , respiratory quotient [RQ], GXT time, peak power, and energy expenditure [EE]) and community mobility (time to traverse a 100ft-5° ramp, and 12-minute WC propulsion test). Secondary outcome measures were changes in body composition and metabolic profiles (fasting and area under the curve for glucose and insulin, homeostasis model assessment [HOMA] for %β-cell activity [%β], %insulin sensitivity [%S], and insulin resistance [IR], and Matsuda Index [ISI Matsuda ]). Results: Resting VO 2 , relative VO 2Peak , absolute VO 2Peak , peak power, RQ, 12-minute WC propulsion, fasting insulin, fasting G:I ratio, HOMA-%S, and HOMA-IR all significantly improved following intervention (P < 0.05). There were no changes in body composition (P>0.05). Conclusions: Ten weeks of ACE at 70% VO 2Peak in high motor complete SCI improves aerobic capacity, community mobility, and metabolic profiles independent of changes in body composition.

Original languageEnglish (US)
Pages (from-to)272-280
Number of pages9
JournalJournal of Spinal Cord Medicine
Volume42
Issue number3
DOIs
StatePublished - May 4 2019

All Science Journal Classification (ASJC) codes

  • Clinical Neurology

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