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Validation of a Novel Incremental Step Test for Assessment of Cardiopulmonary Fitness and Ventilatory Thresholds in Adults
Sponsor: Heriot-Watt University
Summary
The purpose of this single-group diagnostic validation and test-retest reliability study is to determine whether a novel Incremental Step Test (IST) can accurately assess cardiorespiratory fitness and ventilatory thresholds in healthy adults compared with an established laboratory-based cycle ergometer Cardiopulmonary Exercise Test (CPET). The main questions are whether the step test can elicit reliable physiological responses sufficient to identify the anaerobic threshold and respiratory compensation point, and whether it produces reproducible results when repeated under standardised conditions. The study will compare the incremental step test (IST) with CPET to assess whether the IST provides similar peak and submaximal physiological measures and agreement with CPET comparator. Participants will complete three laboratory exercise tests across separate visits: one maximal CPET on a cycle ergometer, followed by two repeated ISTs performed on a 25 cm step board following the audio metronome.
Key Details
Gender
All
Age Range
18 Years - 55 Years
Study Type
INTERVENTIONAL
Enrollment
30
Start Date
2026-07-20
Completion Date
2026-10-30
Last Updated
2026-09-18
Healthy Volunteers
Yes
Interventions
Cardiopulmonary Exercise Test
A maximal incremental exercise test performed on a cycle ergometer with continuous breath-by-breath gas exchange and heart rate monitoring to assess cardiorespiratory fitness and physiological response
Incremental Step Test
A progressive step test using a standardised 25 cm step platform. Participants will complete a 3-minute warm-up at 20 beats per minute before cadence increases by 4 beats per minute every 20 seconds until volitional exhaustion or predefined termination criteria are reached.
Locations (1)
Oriam Scotlant Performance Centre
Edinburgh, United Kingdom