Force of Muscle Contraction

What does the force of muscle contraction depend on

The number of myosin cross bridges that are attached to actin

How does frequency of stimulation impact force of muscle contraction

When a muscle is contracted more frequently, the contractions are summed. The higher the frequency, the higher the force

How does the number of muscle fibers impact the force of muscles

The more motor units recruited, the greater the force

How does the size of muscle fibers impact force

The bulkier the muscle fibers, the more tension it can develop. More tension equals more force. The large fibers of large motor units produce the most force

What is muscle hypertrophy

Regular resistance exercise increases muscles force by causes muscle cells to enlarge

How does the degree of the muscle stretch impact force

Each muscle has an optimal degree of stretch to produce the most force. A muscle ternate maximum forces between 80-120% of its optimal resting length

What is the length-tension relationship

The force of a muscle contraction depends on the length of the sarcomeres prior to the contraction

What prevents muscles from stretching beyond their normal length

The joints of bones