the point at which your muscle efficiency falls off significantly (your lactate threshold, or LT); and you can improve your endurance, or running economy (RE).It follows that the most effective training takes direct aim at one or more of these three factors
competitor switches from the swimming stage to the cycling stageT2Second transition, where a competitor switches from the cycling stage to the running stageTempo training Working just below your lactate threshold for an extended period (rather than a short