Elastic Limit

The smallest amount of stress (stretching force) necessary to produce permanent or non-recoverable lengthening of a soft tissue. Once a tissue’s elastic limit is exceeded, a return to its original length it not possible, even after the stretching force is removed.


A measure of a tissue’s resistance to stretch. Ligaments and tendons have a high resistance to stretch and are characterized as having a high degree of elasticity. Muscle fascia, on the other hand, has a low degree of elasticity, but is distensible and easily stretched. A tissue that has a high elasticity has a high … Read more

Endurance Strength

The ability to maintain muscle force production over a given period of time.

Essential Amino Acids

The building blocks that make up proteins which must be obtained from foods. Humans need 20 different amino acids to function properly.