They are two different types of training: Anaerobic exercise (weight training) and aerobic exercise (biking walking). One uses glycogen as its main source of fuel and the other uses oxygen.
Variety
For the best results, don’t get stuck in a routine. You could change the type of exercises you do, the equipment you use, the number of sets or repetitions you do, how much you lift, the days you work out and even the supplements you take.
Change is good
Generally, you should change your routines every 2 to 6 weeks. Of course, this depends on your fitness level. Someone that exercises a lot should change his or her routine sooner. A beginner should wait until they are comfortable to make it harder.
:: Overtraining tips ::
Over training consequences
Over training might give you the feeling of more muscle growth, but what is really happening is just your muscles being over trained and not allowing your muscles to fully develop.
Listen to your body
When exercising, watch out for clues that your body is transmitting. Don’t over work your muscles and do everything in moderation for best results.
