Presentation
Metabolic Cost of Transport in Walking in Middle-Aged Adults Using an Ankle Exoskeleton
DescriptionThis study evaluated energy expenditure in middle-aged adults while walking with a powered exoskeleton. Participants wore a bilateral ankle exoskeleton that provided torque. Metabolic cost was measured via indirect calorimetry. Participants walked on a treadmill without the exoskeleton and with the exoskeleton unpowered, powered, and unpowered again. Net metabolic cost of transport (MCOT) was calculated. Some participants showed a decrease in MCOT when walking with the exoskeleton, while others exhibited an increase. Other participants demonstrated minimal changes or initial changes that diminished over time. Participants had differing responses when the exoskeleton was powered off. This variability may be explained by differences in adaptation times, which may be more pronounced among middle-aged adults due to age-related changes in gait and declines in neuromuscular and sensory function. Additional time for adaptation may be necessary to achieve steady-state in MCOT. These results highlight the importance of integrating age-related considerations into training protocols, recognizing that middle-aged adults may require longer or more structured training than young adults to achieve effective exoskeleton use. Understanding the requirements needed for adaptation is essential, as insufficient adaptation may prevent users from experiencing the metabolic improvements that can contribute to reduced injury risk and lower rates of musculoskeletal disorders.
Event Type
Lecture
TimeThursday, October 22nd4:30pm - 4:50pm PDT
Location
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