Searched for: subject%3A%22Muscle%255C+weakness%22
(1 - 6 of 6)
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Waterval, N.F.J. (author), Brehm, M. A. (author), Harlaar, J. (author), Nollet, F. (author)
Background: In individuals with unilateral plantar flexor weakness, the second peak of the vertical ground reaction force (GRF) is decreased. This leads to a higher ground reaction force, e.g. impact, of the contralateral leg, potentially explaining quadriceps muscle and/or knee joint pain. Energy cost optimized dorsal leaf ankle-foot...
journal article 2022
document
Kiss, Bernadett (author)
Various neuromuscular disorders such as spinal cord injury, Charcot-Marie-Tooth disease and poliomyelitis lead to calf muscle weakness, which limits the patient's ability to propel their body forward during gait. Their abnormal gait pattern is characterized by increased ankle dorsiflexion, excessive knee flexion during stance and reduced ankle...
master thesis 2021
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Waterval, N. F.J. (author), Veerkamp, K. (author), Geijtenbeek, T. (author), Harlaar, J. (author), Nollet, F. (author), Brehm, M. A. (author), van der Krogt, M. M. (author)
Background: Bilateral plantarflexor muscle weakness is a common impairment in many neuromuscular diseases. However, the way in which severity of plantarflexor weakness affects gait in terms of walking energy cost and speed is not fully understood. Predictive simulations are an attractive alternative to human experiments as simulations allow...
journal article 2021
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Waterval, Niels F.J. (author), Brehm, Merel Anne (author), Harlaar, J. (author), Nollet, Frans (author)
Objective: To describe the orthotic properties and evaluate the effects of ankle-foot orthoses for calf muscle weakness in persons with non-spastic neuromuscular disorders compared with shoes-only. Design: Cross-sectional study. Subjects: Thirty-four persons who used ankle-foot orthoses for non-spastic calf muscle weakness. Methods: The...
journal article 2020
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Waterval, Niels F.J. (author), Nollet, Frans (author), Harlaar, J. (author), Brehm, Merel Anne (author)
BACKGROUND: To improve gait, persons with calf muscle weakness can be provided with a dorsal leaf spring ankle foot orthosis (DLS-AFO). These AFOs can store energy during stance and return this energy during push-off, which, in turn, reduces walking energy cost. Simulations indicate that the effect of the DLS-AFO on walking energy cost and...
journal article 2019
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Waterval, Niels F.J. (author), Brehm, Merel Anne (author), Ploeger, Hilde E. (author), Nollet, Frans (author), Harlaar, J. (author)
Background: Patients with calf muscle weakness due to neuromuscular disorders have a reduced ankle push-off work, which leads to increased energy dissipation at contralateral heel-strike. Consequently, compensatory positive work needs to be generated, which is mechanically less efficient. It is unknown whether neuromuscular disorder patients...
journal article 2018
Searched for: subject%3A%22Muscle%255C+weakness%22
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