The intermittent graded exercise test (INT) increase treadmill speed incrementally using three minute stage duration on a motorised treadmill. However, the speed within each three minute exercise bout will vary every 30 s between the target speed, and a complete pause for 30 s. The acceleration of the treadmill belt will be set to its maximum capability.

The continuous graded exercise test (CONT) will increase treadmill speed incrementally using three minute stage duration on a motorised treadmill

Qt Interval, Variation in

Participants will run on a treadmill until volitional exhaustion. The speed of the treadmill belt will increase incrementally every 3 minutes. Within each 3 minute stage the speed will vary between the target speed and a complete pause (e.g target speed = 8 km/hr)

Intermittent graded exercise test

Sunderland University

Exercise Induced QT Interval Changes in Response to Intermittent and Continuous Graded Exercise Tests

Exercise Induced Inter-individual Responses in QT Interval Duration and Dispersion During and Following Intermittent and Continuous Graded Exercise Tests in Young Male Football Players

Duration of the QT interval calculated in each 3 minute stage using various algorithms

Maximum or peak value of oxygen (L/ min) consumed

Point during exercise at which ventilation starts to increase at a faster rate than Oxygen consumed

Will Evans

Principle Investigator

University of Sunderland

Sheffield Hallam University

Newcastle University

Teesside University

The investigators will use a replicated randomised repeated measures crossover design in which the participants will be randomised to different sequences of four experimental conditions

channelopathies/crise epiléptica

Exercise Induced QT Interval Changes in Response to Intermittent and Continuous Graded Exercise Tests

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