Different Training Modalities Improve Energy Cost and Performance in Master Runners

Area of Science:

• Exercise Physiology
• Sports Science
• Running Performance

Background:

• Master runners represent a growing demographic in recreational and competitive running.
• Optimizing training strategies is crucial for maintaining and improving running performance in this age group.
• Understanding the comparative effects of different training intensities and structures is essential for effective training prescription.

Purpose of the Study:

• To compare the effectiveness of continuous moderate-intensity training (CMIT) and discontinuous high-intensity training (DHIT) on running performance in master runners.
• To evaluate the impact of these training regimens on physiological parameters including peak oxygen consumption, gas exchange threshold, and energy cost of running.
• To assess changes in 5-km time-trial performance and peak running speed following an 8-week training intervention.

Main Methods:

• Thirty-four male master runners were divided into CMIT, DHIT, and control groups.
• CMIT and DHIT groups underwent 8 weeks of supervised training (3 sessions/week, ~35 km/week).
• Key performance indicators including [Formula: see text]O2peak, vpeak, GET, Cr, and 5-km time-trial were measured pre- and post-intervention.

Main Results:

• Both CMIT and DHIT significantly reduced energy cost of running (Cr) and increased speed at the gas exchange threshold (GET).
• 5-km time-trial performance improved in both CMIT and DHIT groups.
• Peak running speed (vpeak) improved significantly only in the DHIT group, while peak oxygen consumption ([Formula: see text]O2peak) and GET remained unchanged.

Conclusions:

• Both CMIT and DHIT are effective training strategies for enhancing running performance in master runners.
• Improvements in running economy and speed at GET were observed despite a reduction in overall training volume.
• DHIT may offer additional benefits for peak running speed compared to CMIT in this population.