scholarly journals Ipsilateral Motor Pathways and Transcallosal Inhibition During Lower Limb Movement After Stroke

2021 ◽  
pp. 154596832199904
Author(s):  
Brice T. Cleland ◽  
Sangeetha Madhavan

Background Stroke rehabilitation may be improved with a better understanding of the contribution of ipsilateral motor pathways to the paretic limb and alterations in transcallosal inhibition. Few studies have evaluated these factors during dynamic, bilateral lower limb movements, and it is unclear whether they relate to functional outcomes. Objective Determine if lower limb ipsilateral excitability and transcallosal inhibition after stroke depend on target limb, task, or number of limbs involved, and whether these factors are related to clinical measures. Methods In 29 individuals with stroke, ipsilateral and contralateral responses to transcranial magnetic stimulation were measured in the paretic and nonparetic tibialis anterior during dynamic (unilateral or bilateral ankle dorsiflexion/plantarflexion) and isometric (unilateral dorsiflexion) conditions. Relative ipsilateral excitability and transcallosal inhibition were assessed. Fugl-Meyer, ankle movement accuracy, and walking characteristics were assessed. Results Relative ipsilateral excitability was greater during dynamic than isometric conditions in the paretic limb ( P ≤ .02) and greater in the paretic than the nonparetic limb during dynamic conditions ( P ≤ .004). Transcallosal inhibition was greater in the ipsilesional than contralesional hemisphere ( P = .002) and during dynamic than isometric conditions ( P = .03). Greater ipsilesional transcallosal inhibition was correlated with better ankle movement accuracy ( R2 = 0.18, P = .04). Greater contralateral excitability to the nonparetic limb was correlated with improved walking symmetry ( R2 = 0.19, P = .03). Conclusions Ipsilateral pathways have increased excitability to the paretic limb, particularly during dynamic tasks. Transcallosal inhibition is greater in the ipsilesional than contralesional hemisphere and during dynamic than isometric tasks. Ipsilateral pathways and transcallosal inhibition may influence walking asymmetry and ankle movement accuracy.

VASA ◽  
2013 ◽  
Vol 42 (5) ◽  
pp. 375-378 ◽  
Author(s):  
Magdalena Chudala ◽  
Katarzyna Drozdz ◽  
Pawel Gac ◽  
Tomasz Kuniej ◽  
Bozena Sapian-Raczkowska ◽  
...  

2013 ◽  
Vol 22 (3) ◽  
pp. 161-169 ◽  
Author(s):  
Ruth L. Chimenti ◽  
Sara A. Scholtes ◽  
Linda R. Van Dillen

Many risk factors have been identified as contributing to the development or persistence of low back pain (LBP). However, the juxtaposition of both high and low levels of physical activity being associated with LBP reflects the complexity of the relationship between a risk factor and LBP. Moreover, not everyone with an identified risk factor, such as a movement pattern of increased lumbopelvic rotation, has LBP.Objective:The purpose of this study was to examine differences in activity level and movement patterns between people with and people without chronic or recurrent LBP who participate in rotation-related sports.Design Case:Case-control study.Setting:University laboratory environment.Participants:52 people with chronic or recurrent LBP and 25 people without LBP who all play a rotation-related sport.Main Outcome Measures:Participants completed self-report measures including the Baecke Habitual Activity Questionnaire and a questionnaire on rotation-related sports. A 3-dimensional motion-capture system was used to collect movement-pattern variables during 2 lower-limb-movement tests.Results:Compared with people without LBP, people with LBP reported a greater difference between the sport subscore and an average work and leisure composite subscore on the Baecke Habitual Activity Questionnaire (F = 6.55, P = .01). There were no differences between groups in either rotation-related-sport participation or movement-pattern variables demonstrated during 2 lower-limb-movement tests (P > .05 for all comparisons).Conclusions:People with and people without LBP who regularly play a rotation-related sport differed in the amount and nature of activity participation but not in movement-pattern variables. An imbalance between level of activity during sport and daily functions may contribute to the development or persistence of LBP in people who play a rotation-related sport.


2016 ◽  
Vol 26 (2) ◽  
Author(s):  
Deepesh Kumar ◽  
Sunny Verma ◽  
Sutapa Bhattacharya ◽  
Uttama Lahiri

Neurological disorders often manifest themselves in the form of movement deficit on the part of the patient. Conventional rehabilitation often used to address these deficits, though powerful are often monotonous in nature. Adequate audio-visual stimulation can prove to be motivational. In the research presented here we indicate the applicability of audio-visual stimulation to rehabilitation exercises to address at least some of the movement deficits for upper and lower limbs. Added to the audio-visual stimulation, we also use Functional Electrical Stimulation (FES). In our presented research we also show the applicability of FES in conjunction with audio-visual stimulation delivered through VR-based platform for grasping skills of patients with movement disorder.


2014 ◽  
Vol 48 (4) ◽  
pp. 190-196 ◽  
Author(s):  
Himmat S Dhillon

ABSTRACT Osteoarthritis is an irreversible, progressive, degenerative joint disorder of multifactorial etiology that commonly affects weight-bearing joints and leads to pain, loss of movement and functional limitation. Exercise therapy has been shown to be beneficial in osteoarthritis, in terms of decreased pain, improved motion and improved functional outcomes. This review aims to look at some of the common as well as newer modalities of exercise therapy for osteoarthritis (OA), such as strength, training, stretching, agility training, aquatic exercises, Tai Chi and combinations of these modalities. How to cite this article Dhillon HS, Sharma M, Sharma S. Effectiveness of Exercise Therapy and its Variations in Lower Limb Osteoarthritis: A Literature Review. J Postgrad Med Edu Res 2014;48(4):190-196.


2002 ◽  
Vol 17 (2) ◽  
pp. 131-140 ◽  
Author(s):  
Andreas R. Luft ◽  
Gerald V. Smith ◽  
Larry Forrester ◽  
Jill Whitall ◽  
Richard F. Macko ◽  
...  

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