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Emily Infeld's Double Threshold Workouts Boost Endurance

10/10/2025

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Summary

Story summary

Emily Infeld, national champion in the women's 10,000 meters, discusses double threshold workouts and aerobic benefits.
Coach Jon Green says these workouts help sustain faster paces over longer distances.
A typical session includes a warm-up, threshold intervals, and a cool-down.
The sessions are spaced eight to ten hours apart.
Green advises beginners to start with shorter intervals and gradually increase volume.

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Story summary

Emily Infeld, national champion in the women's 10,000 meters, discusses double threshold workouts and aerobic benefits.
Coach Jon Green says these workouts help sustain faster paces over longer distances.
A typical session includes a warm-up, threshold intervals, and a cool-down.
The sessions are spaced eight to ten hours apart.
Green advises beginners to start with shorter intervals and gradually increase volume.