By this point, I think we’re beyond prescribing tennis players to run long and slow (at least I hope we are). If you want to understand why this is the case, I urge you to read through this post, as I outline how the energy systems work and interact with one another.
Yet we still need players to be able to endure tough points, tight sets and long matches. No question about it. So how do we do this?
Based on some of my previous posts, many believe I’m not a fan of running. That, however, is not true at all! I’m a huge believer in running activities - but not the ones that have traditionally been prescribed in tennis books and in many tennis related research papers. A typical ‘old school’ prescription is to get players running long slow distances (LSD) in the off-season or during preparatory periods. The rationale is - ‘let’s build an aerobic base’. Hmm. I’ve mentioned this before, but I’ll do it again - energy system development is not that simple. You can NEVER truly isolate one energy system and completely disregard the others. You can bias one over the other, but there’s an interplay between the 3 (anaerobic, anaerobic-Lactic, aerobic).