Henneman's principle
The Henneman principle (after Elwood Henneman ) describes the process in the body during which information from the neuron in the brain reaches the respective fiber ends.
The small motor units of the slow-twitch type are recruited when there is little effort required, the large, strong motor units of the fast-twitch type when the effort is highest.
Henneman described the experimental basis of the size principle in 18 logically related publications in the Journal of Neurophysiology over a period of 25 years.
literature
- Elwood Henneman: Relation between size of neurons and their susceptibility to discharge . In: Science . 126, 1957, pp. 1345-1347.
- Elwood Henneman et al .: Rank order of motoneurons within a pool: law of combination . In: J. Neurophysiol. 37, 1974, pp. 1338-1349.
- Elwood Henneman: The size principle: a deterministic output emerges from a set of probabilistic connections . In: Journal exp. Biology . 115, 1985, pp. 105-112.
- Joel A. Vilensky, Sid Gilman: Renaming the "Henneman Size Principle" . In: Science . Vol. 280, ed. 5372, 1998, p. 2027.
- Hans Peter Clamann: Elwood Henneman and the Size Principle . In: Journal of the history of the neurosciences . Vol. 11, No. 4, 2002, pp. 420-421.
- Lorne M. Mendell: The size principle: a rule describing the recruitment of motoneurons . In: Journal Neurophysiol . 93, 2005, pp. 3024-3026.