Counterbalance
As you are well aware, rigorous weight training will cause micro-lacerations in your muscles and the connective tissue.
When you are not training (resting), the body is preparing itself for the next training session. To be able to cope with the next session the body will restore balance by repairing and at the same time reinforcing the micro-lacerations caused by the workout.
Vitamin C and the proteins consumed from your diet are the most important stimulants of this process. After the recovery, the repaired and reinforced muscles will be able to cope with a new workout load comparable to the previous session. Fitness, weight training, and body-shaping are in fact based on this counterbalancing process.
Muscular Pain
Feeling sore a few days after that hard work out? Simply put, that pain is caused by a buildup of lactic acid and other free radicals in the body which are being removed from the body in the days following the work out.
The pain felt while the micro-lacerations are healing ensures that you are not able work out and use the muscle as intensively as before. In order for muscles to grow, time is needed for healing and recovery. Muscular pain is generally a good indicator of when the body is ready to have the next training session.
Muscle Fibers:
Muscle fibers react differently to sets of four to six repetitions as compared to sets of 8 to 12 repetitions. Without getting too specific, the following rule of thumb can be applied:
- Completing sets of 4 to 6 repetitions will help strengthen your muscle fibers and connective tissue. This means that you can increasingly lift more weight.
- Completing sets of 6 to 8 repetitions generally make your muscle fibers larger. This means that the muscle fibers increase in size. This is how you get the big guns.
- Working out with sets consisting of more repetitions help provide the muscles with neurological stimulation. In plain English, it means that there is an improved signal transfer from the brain to the muscles. By occasionally exercising with a higher number of repetitions you lay the basis for a more effective training session with fewer repetitions (4 to 6 and 6 to 8 repetitions).
