Answer:
Skeletal muscles are affected by use, so that those muscles that are forcefully contracted become larger. This is called muscle hypertrophy.
How does muscular hypertrophy work?
The word "hypertrophy" derives from the Greek for "more nutrition." Making your muscles larger refers to their overall size.
You often need to workout your muscles regularly to see hypertrophy.
Strength training is a complex beast about which we continue to learn more. Strength training trains more than just your muscles. Your central nervous system is trained extensively. Many nerve systems are trained to use and activate different muscle groups, and your brain is trained to believe that you can lift that much weight—and much more.
You are capable of far more lifting than you may believe. There have been instances of hysterical strength, most of which are anecdotal and involve individuals responding to emergencies with extraordinary, unrepeatable strength. It is technically feasible to lift so much, but on a regular basis, your mind and body are aware of this, and using tremendous force will be beyond the capacity of your muscles and skeletal structure.
Your muscle fibers are also harmed when you lift weights. Within the tissues that are healed, tiny microtears appear. Your body will rebuild them larger as a result of the stimulation you've provided and the increased fuel.
A decent starting program is one like StrongLifts 5x5. You will become stronger as a result. As previously said, strengthening your neural system is the main focus, however you will also experience some hypertrophy as a result of your muscles recovering. Heavy weights are used in these lifts, which are performed for 5 sets with few reps (where 5 is the number of near failure).
Greater volume and frequency are needed to truly engorge your muscles, according to more extensive research into the factors that actually cause your muscles to expand. According to these research, volume spread out over the course of a week can be better for development than volume on a particular day. You may efficiently increase your muscle mass if you perform 1-2 sets of 10 repetitions on your entire body every other day. Additionally, it encourages eccentric exercises with heavy weight: Specific Training for Hypertrophy.
Thanks,
Eddie