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ABSTRACT
The authors investigated the effects of chronic low back pain (LBP) and walking speed (WS) on metabolic power and cost of transport (CT). Subjects with chronic nonspecific LBP (LBP group [LG]; n = 9) and healthy (control group [CG]; n = 9) were included. The test battery was divided into 3 blocks according to WS as follows: preferred self-selected speed (PS), and lower and higher than the PS. In each block, the volunteers walked 5 min, during which oxygen consumption was measured. Although without differences between groups, the LG had CT lower in slower speeds than in faster speeds. Walking speed affected CT only in the LG, which the group had the greatest walking economy at slower speeds.
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ACKNOWLEDGMENTS
This study would not have been possible without the assistance of CNPq. The authors are grateful to the Locomotion Group of UFRGS for their insights in the discussions and their comments. They also thank the Unioeste Physical Rehabilitation Center (Centro de Reabilitação Física da Unioeste) and Biological and Health Sciences Center (Centro de Ciências Biológicas e da Saúde [CCBS])/UNIOESTE, - Cascavel, PR, Brazil.