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Equipment Modalities
Types of Resistance
Exercise | Description |
---|---|
Isometric | Can product strength gains up to a point, when maximum force is being produced. Effective in exercising injured joints. Little muscular endurance, must be performed at all angles to increase strength. |
Dynamic Constant Resistance | Resistance force determines the muscle force. Resistance occures through both concentric/eccentric phase. Weight load does not change. |
Dynamic Variable Resistance | Strength training using weight stack machines have variable resistance. Weight load changes automatically during the movement. Less resistance in weaker phase, more resistance in the stronger phase. |
Strength Curve | Most difficult point in muscle contraction is called the sticking point. Maximum amount of weight a person can lift in a dynamic exercise is equal to the maximum weight that can be lifted through the sticking point. |
Isokinetic | Cannot adjust speed. Maximum resistance can occur through full ROM regarless of speed of contraction. |
Computer Controlled | Example: Lifecircuit. Popular with beginners, seniors and disabilities. Dynamic resistance. My be intimidating, requires more in-depth instruction. |
Space & Equipment Layout | Space required is 100 sq. ft. per person. Machines require 20 sq. ft. per person. |