Journal CME June 2024, A comparison of energy expenditure and perceived exertion between standard axillary crutches, knee scooters, and a hands-free crutch-PM R - 2023 - Canter - A comparison of energy expenditure and perceived exertion between standard axillary crutches knee

PM R - 2023 - Canter - A comparison of energy expenditure and perceived exertion between standard axillary crutches knee

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This study compared energy expenditure (EE) and perceived exertion between standard axillary crutches (SACs), knee scooters, and a hands-free crutch (HFC). The study involved a randomized crossover-controlled trial with 20 healthy college students. Results showed that unassisted ambulation (UA) resulted in lower EE, heart rate (HR), and perceived exertion compared to all assistive devices. For activities of daily living (ADLs) course and stair climbing, HFC had lower HR and perceived exertion than SACs and knee scooters, although EE was similar across all devices. During the 6-minute walk test (6MWT), each device significantly differed from the others for EE, HR, and perceived exertion, with knee scooters showing the lowest values, followed by HFC. Participants expressed a preference for the HFC over the other devices. The study suggests that using a HFC may offer an easier and more preferred alternative to SACs and knee scooters for individuals with weight-bearing restrictions during ambulation, stair climbing, and other ADLs. Future studies should further evaluate the benefits of using HFC specifically in populations with lower limb injuries or surgical procedures.

Keywords

energy expenditure

perceived exertion

axillary crutches

knee scooters

hands-free crutch

heart rate

activities of daily living

stair climbing

6-minute walk test

weight-bearing restrictions