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This study aimed to compare exercise intensity between robot-assisted Lokomat therapy and traditional overground walking in nonambulatory stroke patients. Results showed that Lokomat walking in stroke patients did not reach the recommended aerobic training heart rate reserve, indicating lower intensity compared to overground walking. Nondisabled subjects displayed minimal differences in exercise intensity with various Lokomat settings. The study concluded that Lokomat walking provides light exercise intensity, falling below ACSM-recommended levels for improving aerobic fitness.
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Exercise intensity of robot-assisted walking versus overground walking in nonambulatory stroke patients Michiel P. M. van Nunen, MSc; Karin H. L. Gerrits, PhD; Arnold de Haan, PhD; Thomas W. J. Janssen, PhD
Aim • Investigate whether exercise intensity during Lokomat therapy elicits a training effect. • Determine how assistance while walking with Lokomat affects this exercise intensity. • Relevance • Robot-assisted treadmill exercise (using Lokomat device) could increase duration of walking therapy relative to conventional overground walking.
Methods • 20 Participants: • 10 patients with stroke walked on Lokomat and in hallway. • 10 nondisabled subjects walked on Lokomat at various settings and on treadmill at various speeds. • Oxygen and heart rate were monitored.
Results • Patients with stroke: • Exercise intensity during Lokomat walking: • Didn’t reach recommended 30% heart rate reserve (HRR) for aerobic training. • Lower than during overground walking. • Nondisabled subjects: • Different Lokomat settings had only small effects on exercise intensity. (a) Oxygen consumption (VO2). (b) HRR.
Conclusion • Exercise intensity during Lokomat walking is light and below American College of Sports Medicine-recommended values to improve aerobic fitness.