Hypertrophy of muscles involves more:-
A. Myofibrils
B. Actin and myosin filaments
C. Sarcoplasm
D. Tendon
E. Lipids
Choose the correct answer from the options given below:

Correct option is B

Muscle hypertrophy refers to the increase in the size of muscle fibers, primarily as a result of strength training or resistance exercises. The primary components involved in muscle hypertrophy are:
Myofibrils (A): Myofibrils are the contractile elements of muscle fibers, consisting of repeating units called sarcomeres. During hypertrophy, the number of myofibrils in each muscle fiber increases, leading to muscle growth and an increase in strength.
Actin and Myosin Filaments (B): These are the proteins responsible for muscle contraction. Hypertrophy results in an increase in the amount of actin and myosin filaments within the muscle fibers, contributing to the muscle's ability to generate more force.
Sarcoplasm (C): The sarcoplasm is the cytoplasm of muscle fibers, and its volume increases during hypertrophy. This includes the increase in the fluid and energy substrates (such as glycogen) within the muscle cells, which supports muscle function and performance.
The other options are less involved in the direct process of hypertrophy:
Tendon (D): Tendons connect muscles to bones and do not undergo hypertrophy in the same way muscle fibers do. While tendon strength can increase with training, it is not a direct result of hypertrophy.
Lipids (E): While fat stores in the body may increase with a sedentary lifestyle, lipids are not directly involved in the hypertrophy of muscles. Hypertrophy is more about increasing muscle fiber components like myofibrils and actin/myosin filaments, not fat.
Information Booster:
Myofibrils are the primary units of muscle contraction and their increase during hypertrophy contributes significantly to muscle size.
Actin and myosin filaments increase in number and size, allowing the muscle to generate more force and endure higher loads.
Sarcoplasm expansion includes more energy stores and fluid, which supports muscle endurance and strength.
Hypertrophy increases muscle volume through both structural changes (myofibrils, actin/myosin) and metabolic adaptations (sarcoplasm).
Tendons do increase in strength over time with training, but they do not undergo hypertrophy in the same manner as muscle fibers.
Additional Information:
Lipids may increase with weight gain or excessive fat storage but are unrelated to muscle hypertrophy.
Tendon adaptation to strength training occurs gradually over time but is not the focus in the hypertrophic process.