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Muscle fatigue is not the same as muscle weakness, though weakness is an initial symptom. Despite a normal amount of force being generated at the start of activity, once muscle fatigue has set in and progressively worsens, if the individual persists in the exercise they will eventually lose their hand grip, or become unable to lift or push with ...
This meaning implies that the primary defect is within the muscle, as opposed to the nerves ("neuropathies" or "neurogenic" disorders) or elsewhere (e.g., the brain). This muscular defect typically results in myalgia (muscle pain), muscle weakness (reduced muscle force), or premature muscle fatigue (initially normal, but declining muscle force).
With delayed onset muscle soreness (DOMS) caused by eccentric exercise (muscle lengthening), it was observed that light concentric exercise (muscle shortening) during DOMS can cause initially more pain but was followed by a temporary alleviation of soreness with no adverse effects on muscle function or recovery being observed.
Abnormal muscle fatigue (premature fatigue and/or inability to get into second wind), muscle pain (myalgia), cramping or muscle stiffness during and/or after exercise, [citation needed] Shortness of breath ( dyspnea ), or rapid breathing ( tachypnea ), or heavy breathing ( hyperpnea ), or both (exercise hyperventilation ) [ citation needed ]
Cramp fasciculation syndrome (CFS) is a rare [1] peripheral nerve hyperexcitability disorder. It is more severe than the related (and common) disorder known as benign fasciculation syndrome; it causes fasciculations, cramps, pain, fatigue, and muscle stiffness similar to those seen in neuromyotonia (another related condition). [2]
Spinal and bulbar muscular atrophy (SBMA), popularly known as Kennedy's disease, is a rare, adult-onset, X-linked recessive lower motor neuron disease caused by trinucleotide CAG repeat expansions in exon 1 of the androgen receptor (AR) gene, which results in both loss of AR function and toxic gain of function.
Many names, including muscular rheumatism, fibrositis, psychogenic rheumatism, and neurasthenia were applied historically to symptoms resembling those of fibromyalgia. [272] The term fibromyalgia was coined by researcher Mohammed Yunus as a synonym for fibrositis. and was first used in a scientific publication in 1981. [ 273 ]
Like the nervous system proposal increased muscle contractions eventually evoke muscle fiber fatigue, weakness, and finally degradation, which are characteristic symptoms of TM. There is evidence to support both theories; it has been suggested that toxic levels of thyroxine may ultimately attack muscle fibers directly and indirectly by the ...