V. Gritsenko

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It is known that the springlike properties of muscles provide automatic load compensation during weight bearing. How crucial is sensory control of the motor output given these basic properties of the locomotor system? To address this question, a neuromuscular model was used to test two hypotheses. (1) Stretch reflexes are too weak and too delayed to(More)
In the absence of sensory input, the central nervous system can generate a rhythmical pattern of coordinated activation of limb muscles. Contracting muscles have spring-like properties. If synergistic muscles are co-activated in the right way, sustained locomotion can occur. What is the role of sensory input in this scheme? In this chapter we first discuss(More)
OBJECTIVE To test a functional electric stimulation (FES)-assisted exercise therapy system for improvement of motor function of the hemiplegic upper extremity. DESIGN A before-after trial, with 2-month follow-up. SETTING A university research laboratory. PARTICIPANTS A convenience sample of 6 subjects (3 men, 3 women). Main inclusion criteria were(More)
OBJECTIVE To test the efficacy of functional electric stimulation (FES)-assisted exercise therapy (FES-ET) on a workstation in the subacute phase of recovery from a stroke. DESIGN Single-blind, randomly controlled comparison of high- and low-intensity treatment. SETTING Laboratory in a rehabilitation hospital. PARTICIPANTS Nineteen stroke survivors(More)
This report concerns a test of the hypothesis that gain in the stretch reflex pathway of cat medial gastrocnemius (MG) muscle during locomotion increases after denervation of its synergists, lateral gastrocnemius (LG), soleus (SOL) and plantaris (PL) muscles. In four cats, MG, tibialis anterior (TA) and vastus lateralis (VL) muscles were implanted with(More)
Current diagnosis and treatment of movement impairment post-stroke is based on the subjective assessment of select movements by a trained clinical specialist. However, modern low-cost motion capture technology allows for the development of automated quantitative assessment of motor impairment. Such outcome measures are crucial for advancing post-stroke(More)
OBJECTIVE To determine if a low-cost, automated motion analysis system using Microsoft Kinect could accurately measure shoulder motion and detect motion impairments in women following breast cancer surgery. DESIGN Descriptive study of motion measured via 2 methods. SETTING Academic cancer center oncology clinic. PARTICIPANTS 20 women (mean age = 60(More)
Due to an increasing attention to questions of adequate protection of the myocardium and widely spread use of the method of blood cardioplegia the authors have made a comparative analysis of effectiveness of using 2 methods of cardioplegia--pharmacocrystalloid and cool blood antegrade cardioplegia: 34 patients were operated upon under conditions of(More)
Neural control of movement can only be realized though the interaction between the mechanical properties of the limb and the environment. Thus, a fundamental question is whether anatomy has evolved to simplify neural control by shaping these interactions in a beneficial way. This inductive data-driven study analyzed the patterns of muscle actions across(More)