Is Aerobic Base Training For Mountain Biking Dead?

A couple of years ago I proposed some radical ideas on cardio training for mountain bikers. Ever since then I've had a lot of people doubt my sanity. Aerobic base training has been a staple of training programs for decades and many an off season program for mountain bikers has included an extended period of time reeling off boring miles on a trainer. While some people embraced my concepts (and proceeded to achieve better "aerobic endurance" despite doing little to no aerobic training) many others have questioned why this concept is so different that the "scientific" one. Let me explain why this is - people in the strength training trenches figure out what works in the real world (which is MUCH different than a controlled lab setting) and then implement it. Sometimes what we do flies in the face of the traditional "science" of training. Sports scientists pick up on what we are doing, study it and then tell us why it works. This process usually takes about 5-10 years or more to go from the cutting edge in the trenches to being taught in the classroom. So, this meant that there was not a ton of scientific studies to confirm what I knew - aerobic base training simply does not work on a consistent basis in the real world. But, now there are two landmark studies that suggest that anaerobic interval training is vastly superior to the out dated models still being promoted by the mainstream fitness media. The main reason that mountain bikers felt compelled to include aerobic base training in their program was to increase their aerobic capacity. The scientifically accepted method to determine aerobic capacity is VO2Max (Maximum Volume of Oxygen Consumed), which is an indicator of how well your body can utilize oxygen. Aerobic training had been shown to increase your VO2Max, so therefore was considered necessary for overall cardiovascular development. However, strength coaches on the cutting edge realize that the best way to raise your VO2Max, and therefore your aerobic capacity, is through interval training, not aerobic training! While this may not make a lot of sense, it is true. Several recent studies on anaerobic intervals produced some of the largest increases in VO2Max ever seen, including studies done on aerobic training. One study in particular was done on what is popularly known as the Tabata Protocol. This method calls for 20 seconds of sprinting followed by 10 seconds rest and these mini-intervals are repeated 6-8 times per round. A workout may involve 1-3 rounds (complete recovery is allowed between rounds). Researchers found massive increases in the subjects VO2Max in addition to the anticipated increases in anaerobic endurance markers. The increases in VO2Max were some of the largest ever seen in a study and showed that aerobic training is not the only (nor the best) way to increase aerobic capacity. Another landmark study that came out in the September 2006 Journal of Physiology studied the effects of 20 minutes of interval training (30 second sprints followed by 4 minutes of rest) vs. 90-120 minutes of traditional aerobic heart rate zone training. They found that the interval group which did only 1 hour of exercise per week had the same improvements in aerobic capacity as the aerobic group. Did I mention the aerobic group spent 4-6 hours per week exercising? 4 to 6 times as much exercise to get the same results in aerobic capacity? This isn't even taking into account that the interval group improved their anaerobic capacity, something the aerobic group did not. This finding is astounding and shows just how much time you can waste with aerobic training. I've mentioned this before and here is the proof - anaerobic intervals will increase your aerobic capacity as well as your anaerobic capacity but aerobic training does not increase your anaerobic capacity. All of this means that if you have limited training time (and who doesn't) you may be wasting your time with aerobic training. Anaerobic intervals are the only way to maximize the effectiveness of limited training time. Also, there is no evidence at all that you will burn out or get injured by training with intervals year round. This is simply a myth that has been told so many times that it has been taken as the truth. I challenge anyone to find me a single study that backs this claim. What has been found is that going straight into hard training (either strength or intervals or aerobic) without a preparatory period will increase the likelihood of injury. So, like everything else, you must work into full blown hard core intervals and cycle their intensity and duration but there is no reason you can not do intervals year round. Now, just to balance this out, there are 2 times when aerobic training has a place in your program. First, if you are so out of shape you can not tolerate even the easiest intervals then you should spend some time doing aerobic training to build your work capacity up a bit. But once you can do intervals you should make the switch. Second, aerobic exercise is great for active recovery (something I have also mentioned before). Going out for a light 20 minute jog or ride will help to flush blood into the muscles and help you recover from your strength training and interval sessions faster. Outside of these 2 things, though, aerobic base training may be dead. My mission in life is to bring our sport into the 21st century. You can get better results in aerobic capacity in less time while also increasing anaerobic capacity. This should be something that mountain bikers everywhere rejoice at because aerobic training is some of the most tedious and boring stuff around.The MTB Strength Training System is the world's only strength and conditioning program for the unique demands of mountain biking. Riders from around the world have discovered how they can climb faster, descend with more confidence and have more fun by upgrading the engine that drives their bike - their own body!