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M. H. Hoffman (March 21, 1881 – March 6, 1944) was an American motion picture studio owner and producer. From 1910 to 1917, Hoffman was general manager of the Universal Film Company, a film exchange in New England. [3]
Hoffmann reflex (H-reflex) and muscle response (M-wave) pathways. When a short-duration, low-intensity electric stimulus is delivered to the tibial nerve, action potentials are elicited selectively in sensory Ia afferents due to their large axon diameter (response 2).
- Riann M. Palmieri, Christopher D. Ingersoll, Mark A. Hoffman
- J Athl Train. 2004 Jul-Sep; 39(3): 268-277.
- 2004
- Jul-Sep 2004
Hoffmann's reflex ( Hoffmann's sign, sometimes simply " Hoffmann's ", also finger flexor reflex) [1] is a neurological examination finding elicited by a reflex test which can help verify the presence or absence of issues arising from the corticospinal tract. It is named after neurologist Johann Hoffmann. [2] .
M.H. Hoffman. Producer: West of Singapore. M. H. (Maurice Henry) Hoffman Sr. M.H. Hoffman is associated with numerous companies. There is a bio on Hoffman in the 1929 and 1937-38 "Motion Picture Almanac." He studied painting, singing, and taught languages yet he is best remembered as a producer, director, and studio owner.
- Producer, Additional Crew
- March 21, 1881
- M.H. Hoffman
- March 8, 1944
Jan 1, 2024 · An H-reflex (also called a “Hoffmann reflex”) is the earliest response of a muscle to stimulation of large afferent fibers in the muscle nerve. If the nerve stimulation also excites large efferent fibers, the H-reflex is typically preceded by an M wave (or M response), which reflects excitation of the muscle by these efferents.
Dec 26, 2022 · First described by Paul Hoffmann over a century ago, when an electrical stimulus is applied to a peripheral nerve, this causes action potentials in afferent axons, primarily the Ia afferents of the muscle spindles, which recruit homonymous motor neurons, thereby causing an electromyographic response known as the Hoffmann ( H) reflex.
The H/M ratio is enhanced in spasticity but not in rigidity or in dystonia. Furthermore, in spasticity, H reflexes may appear in muscles in which they are not seen ordinarily (e.g., the small hand muscles).
