Journal
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION
Volume 95, Issue 2, Pages 297-302Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.apmr.2013.08.246
Keywords
Exercise; Rehabilitation; Spinal cord injuries
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Objective: To ascertain the effect of arm cranking exercise on improving plasma levels of inflammatory cytokines and adipokines in untrained adults with chronic spinal cord injury (SCI). Design: Longitudinal study. Setting: Community-based supervised intervention. Participants: Men (N=17) with complete SCI at or below T5 volunteered for this study. Participants were randomly allocated to the intervention (n=9) or control group (n=8) using a concealed method. Intervention: A 12-week aim cranking exercise program of 3 sessions per week consisted of warm-up (10-15min), arm crank (20-30min; increasing 2min and 30s every 3wk) at a moderate work intensity of 50% to 65% of heart rate reserve (starting at 50% and increasing 5% every 3wk), and cool-down (5-10min). Main Outcome Measures: Plasma levels of leptin, adiponectin, plasminogen activator inhibitor-1, tumor necrosis factor-alpha, and interleukin-6 were determined. Furthermore, physical fitness (maximum oxygen consumption [(V) over dotO(2)max]) and body composition (anthropometric index, waist circumference, and body mass index) were also assessed. Results: Plasma levels of leptin, tumor necrosis factor-alpha, and interleukin-6 were significantly decreased after the completion of the training program. Similarly, the anthropometric index and waist circumference were diminished too. A moderate correlation was found between leptin and the anthropometric index. Finally, (V) over dotO(2)max was significantly increased, suggesting an improvement of physical fitness in the intervention group. No changes were found in the control group. Conclusions: Ann cranking exercise improved low-grade systemic inflammation by decreasing plasma levels of inflammatory cytokines. Furthermore, it also reduced plasma leptin levels. Long-term, well-conducted studies are still required to determine whether these changes may improve clinical outcomes of adults with chronic SCI. (C) 2014 by the American Congress of Rehabilitation Medicine
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