Search results
Results From The WOW.Com Content Network
Recently, ultradian rhythms of arousal lasting approximately 4 hours were attributed to the dopaminergic system in mammals. [5] When the dopaminergic system is perturbed either by use of drugs or by genetic disruption, these 4-hour rhythms can lengthen significantly into the infradian (> 24 h) range, sometimes even lasting for days (> 110 h ...
Ultradian rhythms, which are cycles shorter than 24 hours, such as the 90-minute REM cycle, the 4-hour nasal cycle, or the 3-hour cycle of growth hormone production. [citation needed] Tidal rhythms, commonly observed in marine life, which follow the roughly 12.4-hour transition from high to low tide and back.
Empirically, it is an ultradian rhythm of approximately 90 minutes (80–120 minutes [2]) characterized by different levels of excitement and rest. The cycle is mediated by the human biological clock. It is most readily observed in stages of sleep, for example, rapid eye movement sleep (REM) and the delta activity cycle.
So, siestas and afternoon naps take advantage of this normal rhythm by allowing a person to take a daytime rest when the body is most receptive to its benefits. The current culture of siestas.
Ice dance, a discipline of figure skating, has required elements that make up a well-balanced rhythm dance program and free dance program, which must be performed during competitions. They include: the dance lift , the dance spin , the step sequence , turn sequences (which include twizzles and one-foot turns sequences), and choreographic elements.
Entrainment in the biomusicological sense refers to the synchronization (e.g., foot tapping) of organisms to an external perceived rhythm such as human music and dance. Humans are the only species for which all individuals experience entrainment, although there are documented examples of entrained nonhuman individuals.
A courante rhythm [1]. The courante, corrente, coranto and corant are some of the names given to a family of triple metre dances from the late Renaissance and the Baroque era.In a Baroque dance suite an Italian or French courante is typically paired with a preceding allemande, making it the second movement of the suite or the third if there is a prelude.
Quickstep "Quick Step" dance rhythm figure. [1] The quickstep is a light-hearted dance of the standard ballroom dances. The movement of the dance is fast and powerfully flowing and sprinkled with syncopations. The upbeat melodies that quickstep is danced to make it suitable for both formal and informal events.