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PSCJ

Impact of Different Sprint Pedal Resistances Within Heat-Based Sprint Interval Training on Repeated Sprint Ability, Time Trial Exercise and Recovery

16/10/2026

Lead author:
Callum McGregor, Division of Sport and Exercise Science, Abertay University, Dundee
Co-authors:
Dr Andrew Marley, Division of Sport and Exercise Science, Abertay University, Dundee
Dr John Babraj, Division of Sport and Exercise Science, Abertay University, Dundee
 

ABSTRACT

Sprint interval training (SIT) performed in hot environments is a time efficient method for improving performance. While most SIT protocols use a pedal resistance of 7.5% bodyweight, there is little evidence on whether a heavier resistance (8.5% bodyweight) provides greater improvements. Therefore, this study compared two sprint pedal resistances during a 3-week heat-based SIT programme which investigated the training effects during a repeated sprint protocol and a 15-minute cycle time trial in heat (38°C, 30% relative humidity).

View PDF: McGregor.pdf
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