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Keywords: mechanical powerClose
In collection:Comparative biomechanics of movement
J Exp Biol (2018) 221 (24): jeb191171.
Published: 10 December 2018
... by folding their wings over the body to adopt a ballistic posture. Calypte anna Maximal lift Mechanical power Vertical climbing Ascending flight is commonly used by volant taxa in a diversity of biological contexts, including chases, escapes and mating behavior. Climbing animals must exert...
Includes: Supplementary data
J Exp Biol (2010) 213 (2): 318–330.
Published: 15 January 2010
...E. F. Hodson-Tole; J. M. Wakeling SUMMARY The ankle extensor muscles of the rat have different mechanical and physiological properties, providing a means of studying how changes in locomotor demands influence muscle fascicle behaviour, force and mechanical power output in different populations...
J Exp Biol (2007) 210 (19): 3422–3429.
Published: 1 October 2007
..., constituting half of the total pectoral girdle muscle mass,was measured in vitro and used to estimate the muscle mechanical power output during maximal labriform swimming ( P mech ;0.15–0.21 W kg –1 body mass). Respirometry was used to estimate the total metabolic power input ( P total ; 0.95 W kg –1 body mass...
J Exp Biol (2004) 207 (11): 1925–1939.
Published: 1 May 2004
... fluid dynamics energetics blade-element analysis circulatory force acceleration reaction mechanical power mechanical efficiency Pectoral fin motions for propulsion and maneuvering are highly variable among fishes, but at least some of this variation can be summarized by an axis in which...
J Exp Biol (2002) 205 (2): 189–200.
Published: 15 January 2002
...Douglas A. Syme; Robert E. Shadwick SUMMARY The mechanical power output of deep, red muscle from skipjack tuna ( Katsuwonus pelamis ) was studied to investigate (i) whether this muscle generates maximum power during cruise swimming, (ii) how the differences in strain experienced by red muscle...
J Exp Biol (2001) 204 (19): 3311–3322.
Published: 1 October 2001
... dioxide production and calculated the mechanical power ( P mech ) from two aerodynamic models using wingbeat kinematics measured by high-speed cinematography. P met increased from 10.4 to 14.9 W as flight speed was increased from 6.3 to 14.4 m s –1 and was compatible with the U -shaped power/speed curve...
J Exp Biol (1991) 159 (1): 335–357.
Published: 1 September 1991
... or negative vertical force. Estimated effective angles of incidence (α T of the wings averaged 39° during the downstroke and −22° during the upstroke; spanwise variation in α T was greater than the average difference between half-strokes. Total mechanical power requirements of forward flight averaged 12.5 W...
J Exp Biol (1990) 149 (1): 61–78.
Published: 1 March 1990
... and then decreased. It was always possible to find a frequency that maximized work output. There also always existed a higher frequency (termed the ‘optimal’ frequency in this paper) that maximized the mechanical power output, which is the product of the cycle frequency (s −1 ) and the work per cycle (J). 3...
J Exp Biol (1985) 117 (1): 357–368.
Published: 1 July 1985
.... Activating the muscles with brief, tetanizing bursts increases the duration of muscle activity and the mechanical power output per wing cycle above that obtainable with single twitch contractions of the muscle. 3. The mechanical power output was determined for mesothoracic Tcxl muscles undergoing sinusoidal...