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| NEERAJ MEHTA |
A muscle can contract up to 70% or stretched to 130% of its normal resting length in the body, .
A muscle contracts with its greatest force at its normal resting length.
4% Extension of a tension in a joint can causes irreversible damage.
more than 6% stretch of ligament of its normal length, can tears. Attempting to stretch the ligaments is ineffective and can often be dangerous.
To much stretching of ligaments destabilizes joints and can lead to osteoarthritis.
There are two components of muscular tension: 1) the tension generated by the contractile elements (muscle fibers) and, 2) the tension present even in an inactive, denervated muscle, exerted by the connective tissues.
At approximately 120% of a muscle’s resting length, the two components of muscle tension contribute equally to total tension.
The relative length of your muscles, by influencing the contractile element (muscle fibers), because of the nervous system tension regulates . The greatest and fastest gains in flexibility are achieved by resetting the nervous control of muscle tension and length.
When the motor neurons of one set of muscles are stimulated, the motor neurons of the opposing muscles are inhibited. This “reciprocal tension” or” reciprocal inhibition” is what allows you to move.
Muscle fibres are very elastic. In the muscle they are connected with the less elastic a loss of flexibility.
The shortening of connective tissue in and around the muscle is part of the explanation for a loss of flexibility.
Muscles are usually long enough to allow a full range of motion in the joints. However, nervous control of muscle tension has to be re-set for the muscles to show their full length.
There are two kinds of stretch receptors. One kind detects the magnitude and speed of stretching. Thus, flexibility training is speed-specific. The other kind detects magnitude only.
The first type of stretch receptor is called a MUSCLE SPINDLE CELL. Located within the muscle bellies, it senses changes in muscle length and the speed of those changes. When a muscle lengthens too quickly, the spindle cell is stimulated and reflexively causes the muscle to contract, resisting the lengthening and thereby preventing overstretching of the joint.
The second type of stretch receptor is called a GOLGI TENDON ORGAN [GTO]. Located in the muscle tendon, it monitors the amount of strain on the tendon. When a muscle contracts OR stretches maximally, the GTO senses it and “orders” the muscle to relax.
Suggested By:
NEERAJ MEHTA, (Fitness
Professional, Nutritionist and Inventor of BMXStrength ® Technique of exercise,
Director of GFFI Fitness Academy)
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