Comparison of muscular activity and metabolic response between a novel handle-based and a push-rim wheelchair in a simulated daily mobility circuit.
Georgios Aronis, Sebastian Pfau, Marvin Abass and 2 others
PMID 41537499WHAT IT FOUND
In healthy men, a new handle-crank wheelchair lowered heart rate and oxygen use compared with standard push-rim chairs.
It shifted muscle work away from the triceps and chest but increased biceps activity. This suggests less shoulder strain, but the study did not test people with disabilities.
Key findings
01Heart rate and oxygen consumption were significantly lower when using the KURT handle-crank wheelchair compared with large-wheel push-rim configurations.
02Push-rim propulsion required significantly more triceps and pectoralis major activity than the KURT system, while the KURT system required significantly more biceps activity.
03The study participants were all healthy, able-bodied men with no prior wheelchair experience, limiting generalizability to actual wheelchair users.
STILL TO COME
How it was doneWhat they found
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What it does not show
Participants were all healthy, able-bodied men with no disabilities, so findings may not apply to actual wheelchair users. The KURT prototype was mounted on a specific frame, which may not reflect commercial availability or fit. EMG data were missing for some muscles, particularly the left flexor carpi radialis, due to sensor interference. Participants self-selected their pace, and the KURT circuit took longer to complete, which may have influenced metabolic comparisons.
Declared interests
The authors declare no conflicts of interest. The work was supported by the Austrian Science Fund (FWF).
The easy way to misread this
Do not assume this handle-crank wheelchair reduces pain or injury risk in people with disabilities. The study only measured acute muscle and metabolic responses in healthy men; it did not test patients with shoulder pathology or long-term disability, nor did it assess pain or functional outcomes.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →