Doppler Ultrasound-Based Leg Blood Flow Assessment During Single-Leg Knee-Extensor Exercise in an Uncontrolled SettingJacob Peter Hartmann 1,2,3, Rikke Krabek 1, Stine B. Nymand 1,3, Helene Hartmeyer 1, Lasse Gliemann 4, Ronan M. G. Berg 1,2,3,5, Ulrik Winning Iepsen 1,6
1Centre for Physical Activity Research, Copenhagen University Hospital, 2Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, 3Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 4Department of Nutrition, Exercise and Sports, Integrated Physiology Group, 5Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, 6Department of Anaesthesiology and Intensive Care, Copenhagen University Hospital, Hvidovre Hospital
This test-retest study evaluated leg blood flow measured by the Doppler ultrasound technique during single-leg knee-extensor exercise. The within-day, between-day, and inter-rater reliability of the method was investigated. The approach demonstrated high within-day and acceptable between-day reliability. However, the inter-rater reliability was unacceptably low during rest and at low workloads.
