NASM-CPT (7th Edition) Chapter 19

Speed

The ability to move the body in one intended direction as fast as possible.

Agility

The ability to start (or accelerate), stop (or decelerate and stabilize), and change direction in response to a signal or stimulus quickly while maintaining postural control.

Quickness

The ability to react and change body position with maximal rate of force production, in all planes of motion and from all body positions, during dynamic activities.

Stride Rate

The number of strides taken in a given amount of time (or distance).

Stride Length

The distance covered with each stride during the gait cycle.

Frontside Mechanics

Proper alignment of the lead leg and pelvis during sprinting, which includes ankle dorsiflexion, knee flexion, hip flexion, and a neutral pelvis.

Backside Mechanics

Proper alignment of the rear leg and pelvis during sprinting, which includes ankle plantarflexion, knee extension, hip extension, and a neutral pelvis.

Proprioception

The body's ability to naturally sense its general orientation and relative position of its parts.

Bone Density

The amount of mineral content, such as calcium and phosphorus, in a segment of bone.

Osteopenia

Lower than normal bone density and a precursor to osteoporosis.

Osteoporosis

A condition of reduced bone mineral density, which increases risk of bone fracture.

Sarcopenia

An age-related loss of muscle mass resulting in weakness and frailty in older adults.