Knowra Exercise ball Exercise ball An exercise ball is a large, inflatable, resilient ball used for exercise, balance training, stretching, and physical therapy. Its yielding, unstable surface challenges balance while supporting body weight.
Core stability : The ability to control the trunk and pelvis against movement or external forces. Exercises on the ball challenge trunk control as the body counters its rolling surface.
Proprioception : The sense of the body's position and movement, arising from signals in muscles, joints, and other tissues. Maintaining position on a moving ball requires continuous awareness of body alignment.
Exercise equipment : Tools and devices designed to support physical training and exercise. The exercise ball is a simple, portable piece of equipment within this broader group.
Balance board : A platform designed to tilt or rock, challenging balance while a person stands or sits on it. Both challenge balance, but a balance board offers a rigid platform rather than a yielding ball.
Physical therapy : Rehabilitation practice that uses movement and other interventions to restore or improve physical function. Therapists use exercise balls for supported movement, balance practice, and graded rehabilitation tasks.
Postural control : The regulation of body position and balance during stillness and movement. Small shifts in the ball prompt corrective movements that train postural responses.
Balloon : A flexible bag inflated with gas, usually for decoration, signaling, or play. Like a balloon, the exercise ball holds air, but it is built for repeated body-weight loading.
BOSU : A half-dome exercise device with a rigid base and an inflatable, flexible dome. It provides an unstable surface with a fixed base, unlike the freely rolling exercise ball.
Pilates : A system of exercise emphasizing controlled movement, posture, flexibility, and trunk strength. Pilates classes use the ball to add support, instability, or resistance to mat exercises.
Center of mass : The point representing the average position of an object's mass. Keeping the body's center of mass over the ball's support requires active adjustment.
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