Now that summer is fast approaching ( I hope) I get a lot of questions about crossfit and running. A lot of people drop out of crossfit because the weather is warmer and they want to increase their running volume. So I want to try and explain how your body works with aerobic (running) and anaerobic (crossfit) training.
Aerobic training benefits cardiovascular function and decreases body fat. This is certainly of significant benefit. Aerobic conditioning allows us to engage in moderate/low power output for extended period of time. This is valuable for many sports. Athletes engaging in excessive aerobic training witness decreases in muscle mass, strength, speed, and power. Aerobic activity has a pronounced tendency to decrease anaerobic capacity. This does not bode well for athletes or the individual interested in total conditioning or optimal health.
Anaerobic activity also benefits cardiovascular function and decreases body fat. Anaerobic activity is unique in its capacity to dramatically improve power, speed, strength and muscle mass. Anaerobic conditioning allows us to exert tremendous forces over a brief time. The greatest aspect of anaerobic conditioning it will not adversely affect aerobic capacity! In fact, properly structured (crossfit) anaerobic activity can be used to develop a very high level of aerobic fitness without the muscle wasting consistant with high volume aerobic exercise!
From what I have learned over the years is that there are so many more benefits in training in the anaerobic energy system. That is why we have so many crossfitter’s never running long distances and entering 1/2 or full marathons and setting great times. Be smart about your training. The old saying is true “work smarter, not harder”.
3 Rounds for time of:
465 meter Run (3 laps)
15 Squat Snatch- 75m/55w