Physical Therapy
& Wellness Center, Inc.
7800 Red Road. Suite 105. South Miami, FL 33143
THREE POINTS OF STABILITY
What is the stability of the body?
Stability is the resistance to a change in the body's acceleration, or the resistance to a disturbance of the body's equilibrium. Balance within muscle groups and alignment of the skeletal system affect body equilibrium and balance. Stability of the body is achieved by combining alignment of the skeleton, activation of muscles at the appropriate time, and sequence to perform any desired movement. The body has a center of stability (referred to the center of gravity) located slightly in front of your L2-L3 level. When the center of the gravity is maintained within the body's base of support, then the body is in equilibrium.
What is stability of objects?
Stability is a measure of how likely it is for an object to topple over when pushed or moved. Stable objects are very difficult to topple over, while unstable objects topple over very easily. An object will topple over if its center of gravity is 'outside' the base, or edge, on which it balances.
The core is the center of our body and it functions to stabilize the trunk, while the arms and legs move during functional movements.
How do the Three Points of Stability
(AKA. The Triangle of Stability) work?
For example, in a fork lift, the three points are the two front wheels and the pivot point of the rear axle. Connect these three points (creating a triangle) and you have what's called the 'Triangle of Stability'. One major difference between a forklift and a car is stability. Almost all counterbalanced powered industrial trucks have a three-point suspension system.
The body suspension system works in the same way to create forces and tension that counterbalance, generate power, and promote healthy movement.