1 Collagen is most commonly found within the body in the skin, bones and connective tissues. 2  The word collagen is derived from the Greek kolla, meaning glue. 3  Collagen gives the skin its strength and structure, and also plays a role in the replacement of dead skin cells. Collagen is most commonly found within the body in the skin, bones and connective tissues. 2  The word collagen is derived from the Greek kolla, meaning glue. 3  Collagen gives the skin its strength and structure, and also plays a role in the replacement of dead skin cells.
Healing time depends on the severity of the strain. Mild muscle strains usually heal within two weeks. Moderate muscle strains may take six to eight weeks to heal. Prevention of Recurring Back Strain. Many people who experience recurring back pain have weak core muscles - the muscles that support the back.
Confidence votes 506. The time changes for everyone, depending on age, health conditions before the break, and how bad the break is. On average, the break takes about 1-3 months to fully heal. If the hip has been operated on it usually takes longer to heal than one without operation.That being said, a healthy younger person heals faster and much better than a sick elderly person, even if they were both operated on or not. For the first month it's best not to walk. ANSWER   It depends on the degree of injury made. Strong injuries might heal totally after â¦ few months, while simple one might heal in a month. In any case these are the periods for full recovery. Usually an injure person can go back to his usual activities after 1-2 weeks (except sports and physical work).