Notes

Biomechanics is the study of the movement of a living body, including how muscles, bones, tendons, and ligaments work together to produce movement.

Which data-gathering activity would be useful for a biomechanical analysis?
he strength of leg muscles can be measured and is a quantifiable attribute. This information would be useful for biomechanical analysis.

Biomechanics is useful for tasks such as measuring running dynamics to make changes that will improve the runner's performance.

External forces come from outside the body.
Internal forces can occur inside the body between muscles, tendons, bones, and ligaments. Internal forces between the skeletal and muscular systems create movement.

Force and leverage are concepts that explain how the muscles and the skeleton work to create movement.

Rotation occurs when an object moves around a fixed point, resulting in a circular or semicircular movement.
Extension occurs when the inside angle of a joint increases.
Flexion, the opposite of extension, occurs when the inside angle of a joint decreases.
a hand rotating at the wrist (top), a man extending his leg 90 degrees (center), and an arm flexing at the elbow (bottom)

Balance is the ability to maintain equilibrium so as not to fall. For example, gymnasts must be able to keep their balance on a four-inch-wide beam while performing routines.
Agility is a person's ability to move the body quickly and easily. It also includes the ability to quickly and easily change direction while maintaining one's balance. Agility is essential to sports such as soccer, boxing, and basketball.
Speed is the ability to move fast. Sprinters use many types of training methods to improve their speed.
Power is the ability to move the body parts quickly while applying the maximum force of the muscles. It is a combination of both speed and muscular strength. When we perform a task as quickly and as forcefully as we can, the result is powerful. In track and field, power is an essential element of a sprint start, shot-put, high-jump, and long-jump.
Coordination is the skillful and effective interaction of movements. Controlling a hockey puck requires good hand-eye coordination.

When a stress is repeatedly placed on a part of the body, it causes tiny tears in muscle tissue. Over the next 24 to 48 hours, the tears begin to heal and additional tissue is made, strengthening that particular muscle
Overuse injury is the accumulation of many small injuries.

Microtrauma stimulates muscle growth, which indicates that the injury is healing.
When a person's activity level increases, the internal forces in the body also increase, placing stress on the body.
An overuse injury is the accumulation of many small injuries that have not healed properly over time, leading to noticeable pain.