Journal of Electromyography and Kinesiology Vol. 3, No. 4, pp 251- 33 © 1993 Butterworth-Heinemann Ltd 1050-641 1/93/040251-03 Reviewer acknowledgement The Editors and Publishers are most grateful to the following people who kindly reviewed articles submitted to Journal of Electromyography and Kinesiology in 1992-1993. Without their expertise and generosity, we would be unable to maintain the high standards for which we strive: G Agarwal D Popovic Denis Gravel G Anderson J P Roll M Gregoric R Baratta J B J Smeets M Harris H J Biedermann D Stashuk A L Hof F Bosman M Stokes B Jonsson M Broekhuysen W Troni M Knaflitz Naoichi Chino PH Veltink T Oberg B Day J D van Willigen J Perry C J Erkelens S Wolf M Pope R Glaser Kai-nan An P Rabischong G Gottlieb S Andreassen T Sinkjaer R Gregor C T M Baten C J Snijders G Hagg R A Binkhorst R N Stiles K Hayes L J Bour R Triolo G F Inbar E Chao B K van Veen R F M Kleissen D Corcos J T Viitasalo M Naeije J E J Duysens D Winter B Otten R H Geuze P Pinelli J J van der Gon Index: Volume 3 1993 Subject index adaptation extracellular potential power spectrum, finite torque, muscle, impulse response, motor feedback, kinematics, shape invariance, length muscle fibre, electrode longitudinal units, 67 electromyography, 112 position, intracellular action potential power spectrum, masseter, isometric aerobic metabolism duration, 195 contraction, 205 motor unit, ischaemia, tendon reflex, needle dynamic contractions fatigue, polarity correlation, electrode array, electrode, 183 muscle fatigue, isometric contractions, 231 amplitude normalization techniques median power frequency, 214 amplitude normalization techniques, EMG, maximum voluntary isometric dynamic exercise maximum voluntary isometric contractions, contractions, stretch-shortening cycle, 236 muscle performance testing, stretch-shortening cycle, 236 assistive technology electromyography, motor control, 78 EMG signal tremor, orthotics, motor control, electrode array innervation zone, fatigue, neuromuscular rehabilitation engineering, 131 EMG, fatigue, polarity correlation, 231 disorders, 174 biceps brachii electrode longitudinal position extracellular action potential ' stretch reflex, variability, human, 24 extracellular potential power spectrum, finite intracellular action potential, isolated frog biomechanical models length muscle fibre, depolarization muscle fibre, radial distance, muscle fibre joint modelling, human joint mechanics, car propagation velocity, intracellular action conduction velocity, 95 crash, passenger simulation, 221 potential duration, 195 extracellular potential power spectrum biomechanics electromyogram finite length muscle fibre, electrode muscle coordination, locomotion, coactivation, motor units, recruitment, 33 longitudinal position, depolarization electromyography, statistics, 51 electromyographic signal simulation, 157 propagation velocity, intracellular action car crash electromyography potential duration, 195 joint modelling, biomechanical models, human muscle, partition, lateral fatigue human joint mechanics, passenger gastrocnemius, 87 innervation zone, EMG signal, simulation, 221 dynamic exercise, muscle performance neuromuscular disorders, 174 cat gastrocnemius testing, motor control, 78 EMG, polarity correlation, electrode array, high-frequency antidromic stimulation, feedback, adaptation, kinematics, shape 231 spindle afferents, 41 invariance, 112 feedback coactivation muscle activation patterns, posture and adaptation, kinematics, shape invariance, electromyogram, motor units, recruitment, movement, impulse-momentum principle, electromyography, 112 33 human stance, 149 finite length muscle fibre cortical mapping kinematics, scaling, shape invariance, extracellular potential power spectrum, single motor unit potentials, magnetic shoulder, 13 electrode longitudinal position, stimulation, motor neuron disease, motor muscle coordination, biomechanics, depolarization propagation velocity, evoked potential, 245 locomotion, statistics, 51 intracellular action potential duration, 195 depolarization propagation velocity EMG functional electrical stimulation 252 SUBJECT INDEX quadriceps muscles, paraplegia, isokinetics, magnetic stimulation passenger simulation muscle fatigue, 3 single motor unit potentials, motor neuron joint modelling, biomechanical models, head disease, motor evoked potential, cortical human joint mechanics, car crash, 221 jaw, tracking, visual feedback, motor mapping, 245 polarity correlation control, 103 masseter EMG, fatigue, electrode array, 231 high-frequency antidromic stimulation spindle EMG, power spectrum, isometric posture and movement afferents, cat gastrocnemius, 41 contraction, 205 electromyography, muscle activation human maximum voluntary isometric contractions patterns, impulse-momentum principle, biceps brachii, stretch reflex, variability, 24 EMG, amplitude normalization human stance, 149 human joint mechanics techniques, stretch-shortening cycle, 236 power spectrum joint modelling, biomechanical models, car median power frequency EMG, masseter, isometric contraction, 205 crash, passenger simulation, 221 muscle fatique, isometric contractions, quadriceps muscles human muscle dynamic contractions, 214 functional electrical stimulation, paraplegia, partition, lateral gastrocnemius, motor control isokinetics, muscle fatigue, 3 electromyography, 87 dynamic exercise, muscle performance radial distance human stance testing, electromyography, 78 intracellular action potential, extracellular electromyography, muscle activation jaw, head, tracking, visual feedback, 103 action potential, isolated frog muscle fibre, patterns, posture and movement, impulse- tremor, orthotics, assistive technology, muscle fibre conduction velocity, 95 momentum principle, 149 rehabilitation engineering, 131 recruitment impulse response motor evoked potential electromyogram, coactivation, motor units, EMG, torque, muscle, motor units, 67 single motor unit potentials, magnetic 33 impulse-momentum principle stimulation, motor neuron disease, cortical rehabilitation engineering electromyography, muscle activation mapping, 245 tremor, orthotics, motor control, assistive patterns, posture and movement, human motor neuron disease technology, 131 stance, 149 single motor unit potentials, magnetic scaling innervation zone stimulation, motor evoked potential, kinematics, shape invariance, EMG signal, fatigue, neuromuscular cortical mapping, 245 electromyography, shoulder, 13 disorders, 174 motor unit shape invariance intracellular action potential ischaemia, tendon reflex, needle electrode, feedback, adaptation, kinematics, extracellular action potential, isolated frog aerobic metabolism, 183 electromyography, 112 muscle fibre, radial distance, muscle fibre motor units kinematics, scaling, electromyography, conduction velocity, 95 EMG, torque, muscle, impulse response, 67 shoulder, 13 intracellular action potential duration electromyogram, coactivation, recruitment, shoulder extracellular potential power spectrum, finite 33 kinematics, scaling, shape invariance, length muscle fibre, electrode longitudinal muscle electromyography, 13 position, depolarization propagation EMG, torque, impulse response, motor single motor unit potentials velocity, 195 units, 67 magnetic stimulation, motor neuron disease, ischaemia muscle activation patterns motor evoked potential, cortical mapping, motor unit, tendon reflex, needle electrode, electromyography, posture and movement, 45 aerobic metabolism, 183 impulse-momentum principle, human spindle afferents isokinetics stance, 149 high-frequency antidromic stimulation, cat quadriceps muscles, functional electrical muscle coordination gastrocnemius, 41 stimulation, paraplegia, muscle fatigue, 3 biomechanics, locomotion, Statistics isolated frog muscle fibre electromyography, statistics, 51 muscle coordination, biomechanics, intracellular action potential, extracellular muscle fatigue locomotion, electromyography, 51 action potential, radial distance, muscle isometric contractions, dynamic contractions, stretch reflex fibre conduction velocity, 95 median power frequency, 214 bicep brachii, variability, human, 24 isometric contraction quadriceps muscles, functional electrical stretch-shortening cycle EMG, power spectrum, masseter, 205 stimulation, paraplegia, isokinetics, 3 EMG, amplitude normalization techniques, isometric contractions muscle fibre conduction velocity maximum voluntary isometric contractions, muscle fatigue, dynamic contractions, intracellular action potential, extracellular 236 median power frequency, 214 action potential, isolated frog muscie fibre, tendon reflex jaw radial distance, 95 motor unit, ischaemia, needle electrode, head, tracking, visual feedback, motor muscle performance testing aerobic metabolism, 183 control, 103 dynamic exercise, electromyography, motor torque joint modelling control, 78 EMG, muscle, impulse response, motor biomechanical models, human joint needle electrode “units, 67 mechanics, car crash, passenger motor unit, ischaemia, tendon reflex, aerobic tracking simulation, 221 metabolism, 183 jaw, head, visual feedback, motor control, kinematics neuromuscular disorders 103 feedback, adaptation, shape invariance, innervation zone, EMG signal, fatigue, 174 tremor electromyography, 112 orthotics orthotics, motor control, assistive scaling, shape invariance, electromyography, tremor, motor control, assistive technology, technology, rehabilitation engineering, 131 shoulder, 13 rehabilitation engineering, 131 variability lateral gastrocnemius paraplegia biceps brachii, stretch reflex, human, 24 human muscle, partition, electromyography, quadriceps muscles, functional electrical 87 stimulation, isokinetics, muscle fatigue, 3 locomotion partition muscle coordination, biomechanics, human muscle, lateral gastrocnemius, electromyography, statistics, 51 electromyography, 87 Journal of Electromyography & Kinesiology Vol. 3, No. 4, 1993 AUTHOR INDEX Author index Aisen M L, see Arnold A S, 131 Happee R, transitions in stance during rapid leg flexion, Allison G T, Marshall R N and Singer K P, Goal-directed arm movements. III: Feedback 149 EMG signal amplitude normalization and adaptation in response to inertia Rosen M J, see Arnold A S, 131 technique in stretch-shortening cycle perturbations, 112 Sanchez J H, Solomonow M, Baratta R V and movements, 236 Hof A, see Ament W, 214 D’Ambrosia R, Ament W, Bonga G, Hof A and Verkerke B, Jacobs R, and van Steenberghe D, Control strategies of the elbow antagonist EMG median power frequency in an Jaw, head and finger tracking behaviour muscle pair during two types of increasing exhausting exercise, 214 with delayed visual feedback, 103 isometric contractions, 33 Anderson J E, see Snow C J, 78 Kolev V B, see Radicheva N, 95 Segal R L and Wolf S L, Andreassen S, see Sinkjaer T, 67 Larsen K, see Sinkjaer T, 67 Variability of human biceps brachii spinal Arnold A S, Rosen M J and Aisen M L, Lateva Z C, Dimitrova N A and Dimitrov G V, stretch reflexes: control conditions, 24 Evaluation of a controlled-energy-dissipation Effect of recording electrode position along Segal R L, see Wolf S L, 87 orthosis for tremor suppression, 131 a muscle fibre on surface potential power Seliktar R, see Batman M, 221 Arsenault A B, see Nadeau S, 205 spectrum, 195 Singer K P, see Allison G T, 236 Baratta R V, see Sanchez J H, 33 Lebedev M A, Sinkjaer T, Toft E, Larsen K and Andreassen Batman M and Seliktar R, Further observations on ischaemic S, Characterization of human joint impedance suppression of motor units in human soleus EMG-torque dynamics at different during impulsive motion, 221 muscle: A single case study Technical Note, contraction levels in human ankle muscles, Bilodeau M, see Nadeau S, 205 183 67 Bonga G, see Ament W, 214 Mano Y, Morita Y, Tamura R, Morimoto S, Snow C J, Cooper J, Quanbury A O and Boom H B K, see Franken H M, 3 Takayanagi T and Mayer R F, Anderson J E, Chmielewski W, see Nadeau S, 205 The site of action of magnetic stimulation of Antagonist cocontraction of knee flexors Cooper J, see Snow C J, 78 human motor cortex in a patient with motor during constant velocity muscle shortening D’Ambrosia R, see Sanchez J H, 33 neuron disease, 245 and lengthening, 78 Davies, B L and Vaughan C L, Marshall R N, see Allison G T, 236 Solomonow M, see Sanchez J H, 33 Phasic behaviour of EMG signals during Mayer R F, see Mano Y, 245 Stashuk D W, gait: use of multivariate statistics, 51 Morimoto S, see Mano Y, 245 Simulation of electromyographic signals, 157 Delisle A, see Nadeau S, 205 Morita Y, see Mano Y, 245 Takayanagi T, see Mano Y, 245 Dimitrov G V, see Lateva Z C, 195 Nadeau S, Bilodeau M, Delisle A, Chmielewski Tamura R, see Mano Y, 245 Dimitrova N A, see Lateva, Z C, 195 W, Arsenault A B and Gravel D, Toft E, see Sinkjaer T, 67 Eldred E, see Perlmutter S I, 41 The influence of the type of contraction on Vaughan C L, see Davies B L, 51 English A W, see Wolf S L, 87 the masseter muscle EMG power spectrum, Veltink P H, see Franken H M, 3 Fidder M, see Franken H M, 3 205 Verkerke B, see Ament W, 214 Franken H M, Veltink P H, Fidder M and Pai Y-C, see Rogers M W, 149 Wolf S L, see Segal R L, 24 Boom H B K, Peneva N E, see Radicheva N, 95 Wolf S L, Segal R L and English A W, Fatigue of intermittently stimulated Perlmutter S I and Eldred E, Task-oriented EMG activity recorded from paralyzed human quadriceps during imposed Effects of high-frequency (500-600 Hz) partitions in human lateral gastrocnemius cyclical lower leg movements, 3 antidromic stimulation on primary and muscle, 87 Gravel D, see Nadeau S, 205 secondary spindle afferents, 41 Yaar I, Hagg G M, Quanbury A O, see Snow C J, 78 An EMG index: its values in health and Action potential velocity measurements in Radicheva N, Kolev, V B and Peneva N E,,. disease and its changes with fatigue, 174 the upper trapezius muscle, 231 Influence of intracellular potential and van Steenberghe D, see Jacobs R, 103 Happee R, conduction velocity on extracellular muscle Goal-directed arm movements. II: A fibre potential, 95 kinematic model and its relation to EMG Rogers M W and Pai Y-C, records, 13 Patterns of muscle activation accompanying Journal of Electromyography & Kinesiology Vol. 3, No. 4, 1993