Impact of time and work:rest ratio matched sprint interval training programmes on performance: A randomised...

Area of Science:

• Exercise Physiology
• Sports Science
• Training Methodology

Background:

• Repeated sprint ability is crucial for performance in many sports.
• Optimal training protocols for repeated sprint exercise are not fully established.
• Understanding the impact of different sprint durations on performance adaptations is important.

Purpose of the Study:

• To compare the effects of two repeated sprint protocols (6s vs. 30s) on athletic performance.
• To investigate adaptations in VO2max and 10km time trial performance.
• To examine changes in peak power output following the training interventions.

Main Methods:

• A randomized-controlled trial involving 30 physically active males.
• Participants were allocated to a 6s sprint group, a 30s sprint group, or a control group.
• Training involved 6 sessions over 2 weeks, matched for total sprint time and work:rest ratio, with pre- and post-intervention VO2max and 10km time trials.

Main Results:

• Significant improvements in 10km time trial performance were observed in both the 6s (5.1%) and 30s (6.2%) groups.
• Peak power output increased significantly more in the 30s group (20.0%) compared to the 6s group (9.0%).
• No significant changes in performance were noted in the control group.

Conclusions:

• Both 6-second and 30-second repeated sprint protocols, when matched for total sprint duration and work:rest ratio, can enhance athletic performance.
• The 30-second protocol may lead to greater increases in peak power output compared to the 6-second protocol.
• These findings provide valuable insights for designing effective sprint training programs.