More on sarcoplasmic hypertrophy since it plays a major role in
GVT.
Quote:
Sarcoplasmic hypertrophy (common in bodybuilding) involves the growth of the sarcoplasm (fluid like substance) and non contractile proteins that do not directly contribute to muscular force production. Filament area density decreases while cross-sectional area increases, without a significant increase in strength. Myofibrillar hypertrophy occurs due to an increase in myosin-actin filaments. Contractile proteins are synthesized and filament density increases (Zatsiorsky 1995). This type of hypertrophy leads to increased strength production. Sarcoplasmic Hypertrophy Muscle fibers adapt to high volume training by increasing the number of mitochondria ( organelles in the cell that are involved in ATP production) in the cell. This type of training also leads to the elevation of enzymes that are involved in glycolytic and oxidative pathways. The volume of sarcoplasmic fluid inside the cell and between the cells are increased with high volume training. This type of training contributes little to maximal strength while it does increase strength endurance due to mitochondria hypertrophy. Growth of connective tissue is also present with sarcoplasmic hypertrophy.
References:
The weight trainer(2001)
Muscle Growth part 1811: Why, And How Does A Muscle Grow and Get stronger?
Zatsiorsky,V.(1995) Science and Practice of Strength Training. Human Kinetics. Copyright 2001 Jamie Hale
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