Effects of an Exercise-Assisting Mobile App (Osteoarthritis-Rehabilitation Assistant [O-RA]) on Rehabilitation Outcomes in Older Adults: Randomized Controlled Parallel Clinical Trial.
Pajaree Sornmayura, Sintip Pattanakuhar, Napaschol Intapan and 6 others
PMID 41985075WHAT IT FOUND
Older adults using the O-RA motion-analysis app completed significantly fewer knee exercises than those given standard instructions.
The app acted as a barrier, not a facilitator, due to instability, WiFi requirements, and difficulty using the interface.
Key findings
01Participants using the O-RA app had significantly lower compliance with the exercise program (75% observed/prescribed) compared to the standard teaching group (94%).
02There was no significant difference in the correctness of exercise performance between the app group and the standard teaching group.
03Forty percent of app users reported it was too difficult to use the O-RA app as a routine exercise assistant, citing instability and WiFi requirements.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
The study population consisted of older adults without knee osteoarthritis or knee pain, so results may not generalize to the target patient group. The trial was a phase 1 safety and feasibility study with a small sample size (n=40), limiting the precision of effect estimates. Participants were not blinded to their group assignment, which may have introduced performance bias (e.g., the Hawthorne effect in the control group). The app required a continuous WiFi connection, a specific technical barrier that may not apply to all digital health tools. The exercises tested were relatively simple, which may have made the motion analysis feature redundant and burdensome rather than helpful.
Declared interests
Funded by the Faculty of Medicine Chiang Mai University Research Fund. The funder had no role in the study design, data collection, analysis, or interpretation. No other conflicts of interest were declared.
The easy way to misread this
Do not conclude that all motion-analysis apps are ineffective or that technology hinders rehab. This specific app failed due to usability issues like instability and WiFi requirements. However, do not assume that adding complex feedback to simple exercises improves adherence; for this population, it actively decreased it.
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 →