runs of 5 to 20 minutes at a pace just a little slower than your 10k racing pace. Threshold pace is roughly equivalent to what exercise physiologists call “lactate threshold”, or the point at which muscles start fatiguing at a rapid rate. Running at or near lactate threshold is believed to raise lactate threshold, which should allow to race faster in the future.
Take on one of the toughest cycling challenges in the world! Can you get to Vegas in 24 hours?