Quantification of intersegmental reactions during rapid swing motion

Phillips, Sally; Roberts, Elizabeth M.; Huang, T. C.

doi:10.1016/0021-9290(83)90073-8

Cited by 45 publications

(15 citation statements)

References 3 publications

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“…To conduct a dynamics analysis, one can find the mathematical derivations of rigidbody equations of motion detailed in several reports (Bresler & Frankel, 1950;Hoy, Zernicke, & Smith, 1985;Winter, 1990;Wisleder et al,, 1990;Zajac & Gordon, 1989). These approaches use inverse dynamics to quantify movement kinetics, and inverse dynamics has provided a window for examining the mechanisms by which intersegmental torques influence limb trajectories during pointing and reaching tasks (Atkeson & Hollerbach, 1985;Lacquaniti & Soechting, 1982), the swing phase of human walking (Mena, Mansour, & Simon, 1981;Putnam, 1991;Zernicke, Schneider, & Buford, 1991), running (Phillips, Roberts, & Huang, 1983;Putnam, 1991;Zernicke et al, 1991) and kicking (Putnam, 1983), the swing phase of cat locomotion Wisleder et al, 1990), and the cat paw-shake (Hoy & Zernicke, 1986;.…”

Section: Dynamics Methodsmentioning

confidence: 99%

Biomechanics and Developmental Neuromotor Control

Zernicke

Schneider²

1993

Child Development

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By applying the principles and methods of mechanics to the musculoskeletal system, new insights can be discovered about control of human limb dynamics both in adults and infants. Here, we first provide a basic primer about biomechanics--its historical context, terminology, and analytical techniques. Next we review research with animals and human adults that illustrates how limb dynamics provides a window for examining the physical mechanisms underlying neuromotor control. Finally, we elaborate on how our research group has adapted dynamics techniques to investigate how infants gain control of their limbs and learn to reach in the first year of life.

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Section: Dynamics Methodsmentioning

confidence: 99%

Biomechanics and Developmental Neuromotor Control

Zernicke

Schneider²

1993

Child Development

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“…Some researchers, e.g. Mochon and McMahon (1980) and Phillips et al (1983), have constructed detailed biomechanical models for human gait. These involve calculations of Newtonian mechanics applied to a simplified model of the various joints involved and apply to data scaled relative to body size.…”

Section: Gait Datamentioning

confidence: 99%

Canonical Correlation Analysis When the Data are Curves

Leurgans¹,

Moyeed

Silverman

1993

Journal of the Royal Statistical Society Series B: Statistical Methodology

247

194

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It is not immediately straightforward to extend canonical correlation analysis to the context of functional data analysis, where the data are themselves curves or functions. The obvious approach breaks down, and it is necessary to use a method involving smoothing in some way. Such a method is introduced and discussed with reference to a data set on human gait. The breakdown of the unsmoothed method is illustrated in a practical context and is demonstrated theoretically. A consistency theorem for the smoothed method is proved.

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“…rigid segm ents and hinge joints) previously de® ned by, for instance, Gordon (1989), W inter (1990) and N igg and H erzog (1994), were not considered to impose serious lim itations on the m odel. Furtherm ore, the com bination of the lower leg and the foot as a single segm ent, sim plifyin g the m odelling and com putations, has previously been applied to m odels used for kicking studies (Philips et al, 1983;D unn and Putnam , 1988;Putnam , 1993). In studies where three-segm ent m odels have been used (i.e.…”

Section: Odellin Gmentioning

confidence: 99%

Dynamics of the martial arts high front kick

Sorensen¹

1996

Journal of Sports Sciences

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Fast unloaded m ovements (i.e. striking, throwing and kicking) are typically performed in a proximo-distal sequence, where initially high proximal segments accelerate while distal segments lag behind, after which proximal segments decelerate while distal segments accelerate. The aims of this study were to examine whether proximal segment deceleration is performed actively by antagonist muscles or is a passive consequence of distal segment movement, and whether distal segment acceleration is enhanced by proximal segment deceleration. Seventeen skilled taekwon-do practitioners were ® lmed using a high-speed camera while performing a high front kick. During kicking, EMG recordings were obtained from ® ve major lower extremity muscles. Based on the kinematic data, inverse dynamics computations were performed yielding muscle moments and motiondependent m oments. The results indicated that thigh deceleration was caused by m otion-dependent moments arising from lower leg motion and not by active deceleration. This was supported by the EMG recordings. Lower leg acceleration was caused partly by a knee extensor muscle moment and partly by a motion-dependent moment arising from thigh angular velocity. Thus, lower leg acceleration was not enhanced by thigh deceleration. On the contrary, thigh deceleration, although not desirable, is unavoidable because of lower leg acceleration.

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Quantification of intersegmental reactions during rapid swing motion

Cited by 45 publications

References 3 publications

Biomechanics and Developmental Neuromotor Control

Biomechanics and Developmental Neuromotor Control

Canonical Correlation Analysis When the Data are Curves

Dynamics of the martial arts high front kick

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