How big a factor is that 3000 meters of tempo a week in terms of recovery for the athlete? Would performing this tempo on the track be detrimental versus grass.
Pavel T. with kettlebell training talks about greasing the groove with using half the workload of intensive days for active recovery for the muscles and CNS, and i would guess tempo would work this way, i know how it works for muslces but how does this work for the CNS and why?