Recovery of submaximal upper limb force production is correlated with better arm position control and motor impairment early after a stroke

Turner, Duncan L.; Tang, Xiaojun; Winterbotham, Will; Kmetova, Miriam

doi:10.1016/j.clinph.2011.06.009

Cited by 12 publications

(15 citation statements)

References 38 publications

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“…Motor impairment was comparable at the beginning of treatment in the childhood stroke patient to a recent comparator adult stroke group [9]. Motor impairment was reduced to a similar level during, and maintained at follow-up after, robotassisted therapy when compared to the adult acute stroke group.…”

Section: Discussionmentioning

confidence: 57%

“…The increase in total F-M score was slower (in terms of time) in the childhood stroke patient compared to a group of adult stroke patients early in robot-assisted recovery, but did eventually reach a similar stable level of motor impairment at the end of robotassisted therapy and at one month follow-up (Fig. 2B) [9]. However, the rate of development of total F-M score dur- ing robot-assisted therapy was similar in adult and childhood patients when expressed in terms of the number of robot sessions (Fig.…”

Section: Resultsmentioning

confidence: 97%

“…Each therapy session consisted of 80 robot-assisted right-sided hand grasp extension/flexions and 160 -240 robot-assisted rightsided reach-grasp-reach-releases using a shoulder/upper arm robot device fitted with a hand module (models IMT2 plus IMT5; InMotion Technologies Inc., Boston, MA, USA; Fig. 1) [6,9]. The robot-assisted therapy finished at 299 days post-stroke and 59 sessions were completed.…”

Section: Robot-assisted Therapymentioning

confidence: 99%

“…This outcome measure was used during therapy to track changes in impairment with time and the number of robot sessions undertaken. The evaluations were performed by an experienced therapist following a standardised protocol adapted for robot-assisted therapy in acute and chronic adult stroke patients [6,9]. Follow-up measures of motor impairment were taken 4 weeks after the end of robot-assisted therapy and compared to similar follow-up measures in adult stroke patients in early recovery [9].…”

Section: Evaluation Of Motor Impairmentmentioning

confidence: 99%

“…Robot-assisted therapy was introduced within the first 3 months as early treatment elicits greater reductions in motor impairment compared to its use in the chronic stage in adults (> 6 months post-stroke) [6,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Using Assistive Robotic Technology in Motor Neurorehabilitation After Childhood Stroke

Turner

2012

J Neurol Res

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An intracranial haemorrhage resulted in severe motor impairment in the right upper limb in a previously physically-active young adolescent. Robot-assisted therapy was implemented over the course of 9 months to reduce motor impairment in the affected right upper limb. Robot-assisted therapy consisted of twice weekly sessions containing repetitive and progressively intense practice of hand grasping and arm reaching. The amount of assistance offered by the robot during grasping and reaching was adaptive such that as impairment reduced, the robot offered less assistance. Motor impairment was evaluated with the Fugl-Meyer assessment score for the upper limb. The robot-assisted therapy was associated with an increase in a clinical outcome measure of motor impairment following childhood stroke. The increase was distributed across both upper and lower arm segments. The final, stable reduction in motor impairment in the patient matched that demonstrated in a group of adult unilateral stroke survivors receiving similar treatment with robotics early in their recovery process. We conclude that robotassisted therapy offers a promising treatment option in childhood stroke involving severe upper limb motor impairment. Robot-assisted therapy could be implemented safely in an acute in-patient hospital unit and be continued after discharge to the community setting.

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Section: Discussionmentioning

confidence: 57%

Section: Resultsmentioning

confidence: 97%

Section: Robot-assisted Therapymentioning

confidence: 99%

Section: Evaluation Of Motor Impairmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Using Assistive Robotic Technology in Motor Neurorehabilitation After Childhood Stroke

Turner

2012

J Neurol Res

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Compensatory neuromuscular junction adaptations of forelimb muscles in focal cortical ischemia in rats

et al. 2020

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Introduction Upper limb movements are affected frequently by brain ischemia (BI). Mechanisms involved in recovery and compensatory movements have developed several studies. However, less attention is given to skeletal muscles, where neuromuscular junction (NMJ) has an important role on muscle tropism and functional performance. Methods Animals were divided into two groups: control (C) and BI. Then, animals were skilled to perform single‐pellet retrieval task, following these procedures: habituation, shaping, and single‐pellet retrieval task. BI was induced using stereotaxic surgery in order to apply endothelin‐1 in motor cortex, representative of movements of dominant paw. Reaching task performance was evaluated by single‐pellet retrieval task 1 day before BI induction, 4 and 15 days after BI induction. After that, biceps, triceps, fingers flexor, and extensor muscles were extracted. NMJ was assessed in morphometric characteristics (total area, total perimeter, and feret). Muscle fiber cross‐sectional area and connective tissue percentage were also evaluated for characterization. Student's t test was used for comparisons between C and BI groups. Tau Kendall's correlation was applied among variables from BI group. Results An increase in all NMJ morphometric parameters, as well as increase of atrophy and fibrosis in BI group compared with C. There was a high level of direct correlation between mean values of NMJ morphometry with percentage of success in reaching task in BI group. Conclusion Brain ischemia‐induced NMJ compensatory expansion, muscle atrophy, and fibrosis in forelimb muscles that are related to reaching performance.

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Torque steadiness and muscle activation are bilaterally impaired during shoulder abduction and flexion in chronic post-stroke subjects

Santos

García-Salazar

Souza

et al. 2016

Journal of Electromyography and Kinesiology

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Recovery of submaximal upper limb force production is correlated with better arm position control and motor impairment early after a stroke

Cited by 12 publications

References 38 publications

Using Assistive Robotic Technology in Motor Neurorehabilitation After Childhood Stroke

Using Assistive Robotic Technology in Motor Neurorehabilitation After Childhood Stroke

Compensatory neuromuscular junction adaptations of forelimb muscles in focal cortical ischemia in rats

Torque steadiness and muscle activation are bilaterally impaired during shoulder abduction and flexion in chronic post-stroke subjects

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