1991
DOI: 10.1007/bf00231161
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Differential control of in-phase and anti-phase coupling of rhythmic movements of ipsilateral hand and foot

Abstract: Rhythmic flexion-extensions of ipsilateral hand and foot are easily performed ("easy" association) when the two segments are moved in phase (isodirectionally), whereas great care and attention are required ("difficult" association) to move them in phase opposition. We searched for features distinguishing the two types of coupling by analyzing, on ten subjects: 1) the frequency limit in each association; and, 2) if coupling is modified by inertial or elastic loading of the hand. 1) Subjects were asked to oscill… Show more

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Cited by 153 publications
(96 citation statements)
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“…Brain activations in young and older adults were compared during the per-formance of isolated rhythmical hand/foot movements as well as during their coordination, whereby both limbs moved either in the same direction (isodirectional) or in opposite directions (nonisodirectional). Previous behavioral work has shown convincingly that nonisodirectional patterns are more difficult and are produced with lower accuracy and stability than isodirectional patterns in normal subjects (Baldissera et al, 1982(Baldissera et al, , 1991Kelso and Jeka, 1992;Carson et al, 1995;Serrien et al, 2000) and in Parkinson and stroke patients (Swinnen et al, 1997;Debaere et al, 2001b). Accordingly, the aforementioned conditions represented a gradient of complexity, ranging from isolated to coordinated limb movements of different difficulty levels.…”
Section: Introductionmentioning
confidence: 94%
“…Brain activations in young and older adults were compared during the per-formance of isolated rhythmical hand/foot movements as well as during their coordination, whereby both limbs moved either in the same direction (isodirectional) or in opposite directions (nonisodirectional). Previous behavioral work has shown convincingly that nonisodirectional patterns are more difficult and are produced with lower accuracy and stability than isodirectional patterns in normal subjects (Baldissera et al, 1982(Baldissera et al, , 1991Kelso and Jeka, 1992;Carson et al, 1995;Serrien et al, 2000) and in Parkinson and stroke patients (Swinnen et al, 1997;Debaere et al, 2001b). Accordingly, the aforementioned conditions represented a gradient of complexity, ranging from isolated to coordinated limb movements of different difficulty levels.…”
Section: Introductionmentioning
confidence: 94%
“…A cycle began from a position of maximal leg flexion (feet at the butt) and ended at the return to this position. The curves of elbow and knee angles during an entire cycle were smoothed by Fourier analysis using a Butterworth low-pass filter (cut-off frequency 6 Hz) by OriginPro 7.5714 ® software (1991( -2003 Corporation, Northampton, MA, USA). In accordance with Hamill et al (2000), the data on angular displacements and angular velocities were normalized in the interval [-1, +1] as follows:…”
Section: Arm To Leg Coordinationmentioning
confidence: 99%
“…(i) The superposition of contradictory actions can be characterized as an "accordion-like" coordination and results in in-phase muscle contraction (i.e., simultaneous arm and leg flexion or arm and leg extension corresponding to an iso-contraction; Baldissera, Cavalleri, & Civaschi, 1982;Baldissera, Cavalleri, Marini, & Tassone, 1991;Swinnen, Jardin, Meulenbroek, Douskaia, & Hofkens-Van Den Brandt, 1997). This superposition coordination is ineffective because each propulsive action is thwarted by a recovery action.…”
Section: Introductionmentioning
confidence: 99%
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“…For instance, several coplanar movements of the upper and lower limbs of one side (e.g., axial rotation of arm and leg, flexionextension of hand and foot) are easily performed when the segments rotate in the same direction (in-phase), whereas coupling is difficult when they move in opposite directions (antiphase) (Baldissera et al 1982(Baldissera et al , 1991(Baldissera et al , 2000Carson et al 1995;Jeka and Kelso 1995;Kelso and Jeka 1992;Serrien and Swinnen 1998;Swinnen et al 1995).…”
Section: Introductionmentioning
confidence: 99%