I hope this post is of interest to many people as well as the clients who have asked my this question and have therefore persuaded my to go about writing these paragraphs.
This post involves a question that is on the tip of many clients tongue:
How do we develop mass?
Hypertrophy is when a skeletal muscle grows. This is not to be confused with the increase in the number of muscle fibres which is called hyperplasia. There are two ways in which the diameter of skeletal muscles can safely increase. The first is called myofibrilla hypertrophy. Myofibrilla hypertrophy is the increase in myofibril (muscle fibre) size. The second way is known as sarcoplasmic hypertrophy which involves the increased storage of glycogen. Neither one of these forms of hypertrophy happens solo. This explains why people with similar dimensions can differ so vastly is strength. Myofibrilla hypertrophy is what correlates to strength development.
When a resistance is applied the myofibrils will be placed under a high level of stress. This stress causes micro tears. With a correct training intervention these tears will not be substantial enough to cause an injury but your muscles will need to rest for at least a day. After all, they don't grow in the gym. Your muscles grow during recovery. They grow to manage the resistance that you have forced upon it.
Here's a pic from Instagram. This is my brother Aled with physique competitor Sergio Constance.
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