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Deconditioning is adaptation of an organism to a less demanding environment, or, alternatively, the decrease of physiological adaptation to normal conditions. Deconditioning can result from decreased physical activity , prescribed bed rest , orthopedic casting , paralysis , aging .
After such exercise, the muscle adapts rapidly to prevent muscle damage, and thereby soreness, if the exercise is repeated. [1] [2]: 76 Delayed onset muscle soreness is one symptom of exercise-induced muscle damage. The other is acute muscle soreness, which appears during and immediately after exercise.
Tension myositis syndrome (TMS), also known as tension myoneural syndrome or mindbody syndrome, is a name given by John E. Sarno to what he claimed was a condition of psychogenic musculoskeletal and nerve symptoms, most notably back pain.
The muscles of the face are usually spared, but in rare cases, the eye muscles may be weakened, leading to ophthalmoplegia. [ 8 ] Respiratory difficulties can be caused by atrophy of the muscles between the ribs (intercostals), atrophy of the diaphragm muscle , and degeneration of the nerve that stimulates the diaphragm ( phrenic nerve ). [ 8 ]
There is a growing consensus that psychosocial factors are another cause of some MSDs. [11] Some theories for this causal relationship found by many researchers include increased muscle tension, increased blood and fluid pressure, reduction of growth functions, pain sensitivity reduction, pupil dilation, body remaining at heightened state of sensitivity.
Exercise in this context means physical activity, not specifically exercise in a fitness program.For example, a person with exercise intolerance after a heart attack may not be able to sustain the amount of physical activity needed to walk through a grocery store or to cook a meal.
Progress on treating stiff-person syndrome has been slow, Claudette noted, being that it is rare. "The vocal cords are muscles, and the heart is also a muscle," said Claudette.
Muscle fatigue is when muscles that were initially generating a normal amount of force, then experience a declining ability to generate force. It can be a result of vigorous exercise , but abnormal fatigue may be caused by barriers to or interference with the different stages of muscle contraction .