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  2. Sporadic late-onset nemaline myopathy - Wikipedia

    en.wikipedia.org/wiki/Sporadic_late-onset...

    It was first identified in 1966 at the Mayo Clinic, by A.G. Engel, [2] and that same year W.K. Engel and J.S. Resnick noted another case that they elaborated in 1975. [ 3 ] [ 4 ] The diagnosis of the disease rests on subacutely evolving weakness after age 40, normal to low CK level , a myopathic EMG with fibrillations , and often a monoclonal ...

  3. Nemaline myopathy - Wikipedia

    en.wikipedia.org/wiki/Nemaline_myopathy

    Nemaline myopathy (also called rod myopathy or nemaline rod myopathy) is a congenital, often hereditary neuromuscular disorder with many symptoms that can occur such as muscle weakness, hypoventilation, swallowing dysfunction, and impaired speech ability. The severity of these symptoms varies and can change throughout one's life to some extent.

  4. Hydrolock - Wikipedia

    en.wikipedia.org/wiki/Hydrolock

    Bent connecting rod after hydrolock Same connecting rod, turned 90°. Hydrolock (a shorthand notation for hydrostatic lock or hydraulic lock) is an abnormal condition of any device which is designed to compress a gas by mechanically restraining it; most commonly the reciprocating internal combustion engine, the case this article refers to unless otherwise noted.

  5. Myofascial pain syndrome - Wikipedia

    en.wikipedia.org/wiki/Myofascial_pain_syndrome

    Primary symptoms include: [3] Localized muscle pain; Trigger points that activate the pain (MTrPs) Generally speaking, the muscular pain is steady, aching, and deep. Depending on the case and location the intensity can range from mild discomfort to excruciating and "lightning-like". Knots may be visible or felt beneath the skin.

  6. Engine balance - Wikipedia

    en.wikipedia.org/wiki/Engine_balance

    Connecting rods (rotating around the piston end as required by the varying horizontal offset between the piston and the crank throw) The imbalances can be caused by either the static mass of individual components or the cylinder layout of the engine, as detailed in the following sections.

  7. Neurogenic claudication - Wikipedia

    en.wikipedia.org/wiki/Neurogenic_claudication

    Neurogenic claudication commonly describes pain, weakness, fatigue, tingling, heaviness and paresthesias that extend into the lower extremities. [9] These symptoms may involve only one leg, but they usually involve both. Leg pain is usually more significant than back pain in individuals who have both. [12]

  8. Slider-crank linkage - Wikipedia

    en.wikipedia.org/wiki/Slider-crank_linkage

    Then, using the triangle sine law, it is found that the crank to connecting rod angle is 88.21738° and the connecting rod angle is 18.60647° from vertical (see Piston motion equations#Example). When the crank is driven by the connecting rod, a problem arises when the crank is at top dead centre (0°) or bottom dead centre (180°).

  9. Connecting rod - Wikipedia

    en.wikipedia.org/wiki/Connecting_rod

    A connecting rod, also called a 'con rod', [1] [2] [3] is the part of a piston engine which connects the piston to the crankshaft. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the crankshaft. [4] The connecting rod is required to transmit the compressive and tensile forces from ...