The answer is : increased resistance need to be added to the muscles.
Muscle conditioning refer to muscle strength and endurance. In order to improve it, you need to put your muscle in a harsher condition in a harsher condition than it used to be, so your muscle could adjust to it. That's why you should keep increasing the resistance
Exercise to get your muscles loosened up
Answer:
Yes you could srain your body
Explanation:
Over exercise could effect your body in a bad way because you could strain a muscle.
