Moderated Poster Australian and New Zealand Stroke Organisation Conference 2025

Criterion and construct validity of the pocket-worn RISE device to assess movement behaviour in community-dwelling people with stroke (123129)

Camille F.M. Biemans 1 2 3 , Laura van der Heiden 1 , Cindy Veenhof 1 4 , Olaf W. Verschuren 2 5 , Johanna M.A. Visser-Meily 1 5 , Martijn F. Pisters 1 2 3 , Yvonne A.W. Hartman 1 2 3
  1. Department of Rehabilitation, Physiotherapy Science & Sport, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
  2. Research Group Empowering Healthy Behaviour, department of Health Innovations and Technology, Fontys University of Applied Sciences, Eindhoven, The Netherlands
  3. Center for Physiotherapy Research and Innovation in Primary Care, Julius Health Care Centers, Utrecht, The Netherlands
  4. Research Group Innovation of Human Movement Care, HU University of Applied Sciences Utrecht, Utrecht, The Netherlands
  5. Center of Excellence for Rehabilitation Medicine, Brain Center, University Medical Center Utrecht and De Hoogstraat Rehabilitation, Utrecht, The Netherlands

Background/Aims:

Practical and accurate activity monitors are essential for assessing sedentary behaviour (SB) and physical activity (PA) in interventions targeting movement behaviour. Most consumer-grade device are not able to accurately capture SB, and their practical applicability in interventions is limited. Given that SB and PA are risk factors for recurrent cardiovascular events or mortality (MACE), accurate monitoring is critical for effective interventions. This study evaluated the construct and criterion validity of the RISE device for measuring movement behaviour in community-dwelling people with stroke.

Methods:

Criterion validity was assessed in laboratory setting using video recordings. Construct validity was assessed in free-living setting using the thigh-affixed ActivPAL.

Results:

In laboratory-setting (25 participants, 66±11.8 years), the RISE device showed good criterion validity for SB and PA. In free-living setting (19 participants, 73±10.2 years), the RISE device showed good construct validity for SB and PA, though further improvements could enhance accuracy of individual-level measurements of moderate-vigorous PA (MVPA) and prolonged sedentary bouts. Mean Absolute Percentage Error and Mean Percentage Error were below predefined 20% threshold for SB and PA. Intraclass correlation coefficients (ICC) for SB and PA showed good reliability, but ICC ranges for prolonged sedentary bouts and MVPA were too broad to draw conclusions.

Conclusion:

Overall, the RISE device appears well-suited for measuring SB and PA in free-living conditions. With its real-time feedback capability, app compatibility, and the practical advantage of being worn in the pocket, the RISE device shows potential for use in interventions focusing on movement behaviour in people with stroke.