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Featured researches published by P. Mela.


Journal of Electromyography and Kinesiology | 2001

The influence of stimulation frequency and ankle joint angle on the moment exerted by human dorsiflexor muscles

P. Mela; Petrus H. Veltink; P.A.J.B.M. Huijing

The purpose of this study was to investigate the force-frequency relationships and the post-tetanic twitch potentiation as a function of joint angle (i.e. muscle length) in human skeletal muscles under isometric conditions. The dorsiflexor muscles of healthy subjects were stimulated at different ankle joint angles by means of constant frequency bursts at seven submaximal frequencies (50, 33, 25, 20, 16, 12, 8 Hz) with a duration of two seconds. Particular attention has been focused on the stability of recruitment in the range of joint angles examined. The results show that moment-frequency curves of human dorsiflexors change as a function of ankle angle: especially for the lower stimulation frequency range (8, 12, 16, 20 Hz), the normalized moment increases from dorsiflexion to plantar flexion (i.e. with increasing muscle length) resulting in a leftward shift of the normalized moment-frequency curves. Post-tetanic twitch potentiation is shown to be ankle joint dependent as well.


Proceedings of the 6th Annual Conference of the International Functional Electrical Stimulation Society, Cleveland, USA | 2001

Muscle length dependence of optimal stimulation patterns

P. Mela; Petrus H. Veltink; P.A.J.B.M. Huijing; Stanley Salmons; J.C. Jarvis; R.J. Triolo


7th Annual Conference of the International Functional Electrical Stimulation Society, IFESS 2002 | 2002

Reflex activity triggered by electrical stimulation in spinal cord injured persons

P. Mela; P.A.J.B.M. Huijing; Petrus H. Veltink; T. Karcnik; P.H. Veltink; R. Jaeger


Proceedings of the XVIIIth Congress of The International Society of Biomechanics | 2001

Dynamics of sustained contractionsof skeletal muscle: muscle length and stimulation frequency dependence (2)

P. Mela; H. Gerber; R. Müller; E. Pasterkamp; Petrus H. Veltink; A. Stacoff; P.A.J.B.M. Huijing


Proceedings of the Dutch Annual Conference on BioMedical Engineering | 2000

Optimization of stimulation patterns: are the patterns muscle length dependent?

P. Mela; J.C. Jarvis; Petrus H. Veltink; P.A.J.B.M. Huijing; Stanley Salmons


Proceedings of the 5th Annual Conference of the International Functional Electrical Stimulation Society | 2000

The influence of stimulation history on muscle performance: within burst potentiation in human tibialis anterior muscle

P. Mela; Petrus H. Veltink; P.A.J.B.M. Huijing


Proceedings of the International Biomechatronics Workshop | 1999

Length dependency of force frequency characteristics of human tibialis anterior muscle

P. Mela; Petrus H. Veltink; P.A.J.B.M. Huijing


Proceedings of the Dutch Annual Conference on BioMedical Engineering | 1999

Influence of muscle length on potentiation: a study on human tibialis anterior muscle

P. Mela; Petrus H. Veltink; P.A.J.B.M. Huijing


Proceedings of the Dutch Annual Conference on BioMedical Engineering | 1998

Recruitment stability of electrically stimulated human muscles

P. Mela; Petrus H. Veltink; P.A.J.B.M. Huijing


The Dutch Annual Conference on Biomedical Engineering | 1997

The effects of short term history of stimulation frequency on length force charecteristics in human skeletal muscles

P. Mela; Petrus H. Veltink; P.A.J.B.M. Huijing

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