strain

Examples of strain in the following topics:

• Sprain and Strain

  • A strain is an injury to a muscle or tendon in which the muscle fibers tear as a result of overstretching.
  • A strain is also colloquially known as a pulled muscle.
  • Typical symptoms of a strain include: localized pain, stiffness, discoloration, and bruising around the strained muscle.
  • Strains can happen while doing everyday tasks and are not restricted to athletes.
  • Compression: Wrap the strained area to reduce swelling with an ACE soft-wrapped bandage.

• Pulled Hamstring and Charley Horse

  • A strained hamstring, also known as a pulled hamstring, is defined as an excessive stretch or tear of muscle fibers and related tissue.
  • Grade 3 - Bruising due to strained hamstring, horizontal lines show where bandage was.
  • A grade three hamstring strain is a severe injury.
  • Lower grade strains can easily become worse if the hamstring is not rested properly.
  • Initial treatment of the injury, regardless of the severity of the strain, is the same.

• Pulled Groin

  • A pulled groin muscle usually refers to a painful injury sustained by straining the hip adductor muscles.
  • A pulled groin muscle usually refers to a painful injury sustained by straining the hip adductor muscles.

• Cancer Immunology

  • Various strains of Human Papilloma Virus (HPV) have recently been found to play an important role in the development of cervical cancer.
  • Although these strains of HPV have not been found in all cervical cancers, they have been found to be the cause in roughly 70% of cases.
  • The study of these viruses and their role in the development of various cancers is still continuing; however, a vaccine has been developed that can prevent infection of certain HPV strains, and thus prevent those HPV strains from causing cervical cancer, and possibly other cancers as well.

• Coryza and Influenza

  • The most common human vaccine is the trivalent influenza vaccine (TIV) that contains purified and inactivated antigens against three viral strains.
  • Typically, this vaccine includes material from two influenza A virus subtypes and one influenza B virus strain.
  • A vaccine formulated for one year may be ineffective in the following year, since the influenza virus evolves rapidly, and new strains quickly replace the older ones.
  • Antiviral medication can be effective, but some strains of influenza can show resistance to the standard antiviral drugs.

• Exhaustion

  • Although the body begins to try to adapt to the strains or demands of the environment, the body cannot keep this up indefinitely, so its resources are gradually depleted.

• Tuberculosis

  • Tuberculosis (TB; short for tubercle bacillus) is a common, and in many cases lethal, infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis .
  • Many strains of tuberculosis have already become resistant to previous treatments, including a strain that is resistant to all antibiotics.

• Varicose Veins

  • Other related factors are pregnancy, obesity, menopause, aging, prolonged standing, leg injury, abdominal straining, and crossing legs at the knees or ankles.

• Defecation Reflex

  • The abdominal muscles contract (straining), causing the intra-abdominal pressure to increase.

• Abnormal Contractions of Skeletal Muscle

  • A spasm may lead to muscle strains or tears of tendons and ligaments, if the force of the spasm exceeds the tensile strength of the underlying connective tissues, such as with a particularly forceful spasm, or in the case of weakened connective tissues.