Time for some definitions…
Aerobic - when oxygen is used to meet energy demands - examples of aerobic exercise include anything longer than 2 or 3 minutes - running 18 miles, sleeping, a 2km row, watching TV, etc… Anaerobic - when energy is produced without oxygen - examples of anaerobic exercise include anything under 3 minutes - a 100m sprint, 1 rep max deadlift, amateur boxing, the workouts we did yesterday --> Aerobic stuff [jogging and the like] can benefit your cardiovascular system and can initially help decrease some body fat - it is a moderate, low power activity... Those that do this type of thing regularly will see a drop in muscle mass, strength, power and speed, and an increase in stress hormones… In fact it’s not uncommon to find marathon runners with a vertical leap of only a few inches… Anaerobic stuff [Crossfit, weightlifting, sprinting, etc] will also benefit your cardiovascular system and help decrease body fat, only those that engage in this activity will see an increase in muscle mass, strength, power and speed… Still not convinced, compare pictures of a marathon runner to a sprinter… |