Final answer:
The size of muscle cells (fibers) directly affects the force produced by the muscle.
Muscle strength is determined by the amount of myofibrils and sarcomeres within each muscle fiber, which can increase through hypertrophy or decrease through atrophy.
Step-by-step explanation:
The size of muscle cells (fibers) directly affects the force produced by the muscle. When more muscle fibers contract at the same time, the force generated is greater.
Muscle strength is determined by the amount of myofibrils and sarcomeres within each muscle fiber, which can increase through hypertrophy or decrease through atrophy.