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Peer-Reviewed Publication
JMIR Res Protoc2026;15e98213.August 21, 2026Journal Article

The Effects of AI-Guided Exercise and a Smart Ring on Arterial Stiffness: Protocol for a Randomized Controlled Trial.

Heikki Pentikäinen1, Sofia Strömmer2, Drake Caraker3, Julia Kosonen2, Aleksi Rantanen2, Saila Hiltunen1, Pirjo Komulainen1, Heidi Similä2, Massimiliano de Zambotti3, Kai Savonen1,4, Pauli Ohukainen2
1Kuopio Research Institute of Exercise Medicine, Yliopistonrinne 3, Kuopio, 70210, Finland.
2Oura Science, Oura Health Oy, Elektroniikkatie 10, Oulu, 90590, Finland, 358 407193660.
3Oura Science, Ouraring Inc, San Francisco, CA, United States.
4Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio, Finland.

Abstract

BACKGROUND: Cardiovascular disease (CVD) prevention is limited by the major challenge of low long-term adherence to effective lifestyle regimens. Arterial stiffness (measured by carotid-femoral pulse wave velocity [cfPWV]) and maximal cardiorespiratory fitness (measured by VO2max) are modifiable risk factors for CVD but require sustained lifestyle change. Wearable technology provides continuous me…

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