BACKGROUND The extent to which muscle length affects force production in paretic lower limb muscles after stroke in comparison to controls has not been established. OBJECTIVES To investigate knee flexor strength deficits dependent on hip joint position in adults with hemiparesis and compare with healthy controls. METHOD a cross-sectional study with ten subjects with chronic (63±40 months) h...

In hemiplegic gait the paretic lower limb provides less muscle power and shows a briefer stance compared with the unaffected limb. Yet, a longer stance and a higher power can be obtained from the paretic lower limb if gait speed is increased. This supports the existence of a 'learned non-use' phenomenon, similar to that underlying some asymmetric impairments of the motion of the eyes and of the...

Background: A dynamic balance assessment of stroke patients is a very important factor in their rehabilitation process. The aim this study was to investigate the test–retest reproducibility and smallest real differences tests chronic survivors. Methods: This methodological that fifty-three survivors participated in. Dynamic were performed using figure eight walk test, four square step test. The...

Reduced knee flexion is a leading feature of post-stroke gait, but the causes have not been well understood. The purpose of this study was to investigate the relationship between the knee flexion and the lower-limb muscle activation within the stance-to-swing phases of gait cycle in the post-stroke hemiplegic patients. Ten stroke patients and 10 age- and gender-matched healthy subjects particip...

The robotic rehabilitation devices can undertake the difficult physical therapy tasks and provide improved treatment procedures for post stroke patients. During passive working mode, the speed of the exercise needs to be controlled continuously by the robot to avoid excessive injurious torques. We designed a fuzzy controller for a hand rehabilitation robot to adjust the exercise speed by consid...

We monitored brain activation after chronic stroke by combining functional magnetic resonance imaging (fMRI) with a novel MR-compatible, hand-induced, robotic device (MR_CHIROD). We evaluated 60 fMRI datasets on a 3 T MR system from five right-handed patients with left-sided stroke >/=6 months prior and mild to moderate hemiparesis. Patients trained the paretic right hand at approximately 75% o...

25 The purpose of this study was to quantify how volitional control of hip torque relates to 26 walking function post-stroke. Volitional phasing of hip flexion and extension torques was 27 assessed using a load-cell-instrumented servomotor drive system in 11 chronic stroke subjects 28 and 5 age-matched controls. Hips were oscillated from approximately 40 degrees of hip flexion 29 to 10 degrees ...

BACKGROUND The aim of the proposed study is to perform a comparative analysis of functional training effects for the paretic upper limb with and without transcranial direct current stimulation over the primary motor cortex in children with spastic hemiparetic cerebral palsy. METHODS The sample will comprise 34 individuals with spastic hemiparetic cerebral palsy, 6 to 16 years old, classified ...

Objectives: The purpose of this study was to assess the effect a single session cerebellar anodal transcranial direct current stimulation (tDCS) on timed up and go test (TUG) with foot placement in patients chronic stroke. Methods: Twenty stroke participated clinical trial. TUG carried out four different positions, 1- spontaneous positions (SP), 2- symmetrical (SYP), 3- asymmetrical (PBNP), par...