Right in Comparison to Left Cerebral Hemisphere Damage by Stroke Induces Poorer Muscular Responses to Stance Perturbation Regardless of Visual Information

Coelho, Daniel Boari; Fernandes, Corina Aparecida; Martinelli, Alessandra Rezende; Teixeira, Luís Augusto

doi:10.1016/j.jstrokecerebrovasdis.2018.12.021

Cited by 18 publications

(13 citation statements)

References 45 publications

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“…Our results for gait analysis agree with different studies, supporting their findings: a lesion in the left hemisphere is more correlated with poor intersegmental coordination, direction and linearity of movement [ 7 , 9 , 13 ], while a lesion in the right hemisphere affects the body’s vertical orientation, the stance control, the body sway, and the ability to shift the body weight between the legs [ 7 , 13 ]. Moreover, our results also agree with the findings by Kim et al [ 14 ] where patients with left hemiplegia improved faster for the functional ambulation profile and the velocity compared to patients with right hemiplegia.…”

Section: Discussionsupporting

confidence: 91%

“…Important information to improve recovery may be found in the brain asymmetry (i.e., the specialization of the two hemispheres); in fact, looking at the role of the hemispheres and gait, the right hemisphere is related with impedance, spatial orientation, the static part of the movement and the position control, while the left hemisphere is related with the movement dynamics, motor control and trajectory [ 7 , 8 , 9 ]. This lateralization connected with motor performance has been highlighted in recent studies with stroke survivors, which showed that poor intersegmental coordination, direction and linearity of reaching movements are associated with a lesion in the left hemisphere [ 10 , 11 , 12 ], while a reduced capacity to shift the body weight between the legs, and poor body vertical orientation, body sway and stance control are associated with a lesion in the right hemisphere [ 7 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

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Brain Asymmetry and Its Effects on Gait Strategies in Hemiplegic Patients: New Rehabilitative Conceptions

et al. 2022

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Brain asymmetry is connected with motor performance, suggesting that hemiparetic patients have different gait patterns depending on the side of the lesion. This retrospective cohort study aims to further investigate the difference between right and left hemiplegia in order to assess whether the injured side can influence the patient’s clinical characteristics concerning gait, thus providing insights for new personalized rehabilitation strategies. The data from 33 stroke patients (17 with left and 16 with right hemiplegia) were retrospectively compared with each other and with a control group composed of 20 unaffected age-matched individuals. The 3D gait analysis was used to assess kinematic data and spatio-temporal parameters. Compared to left hemiplegic patients, right hemiplegic patients showed worse spatio-temporal parameters (p < 0.05) and better kinematic parameters (p < 0.05). Both pathological groups were characterized by abnormal gait parameters in comparison with the control group (p < 0.05). These findings show an association between the side of the lesion—right or left—and the different stroke patients’ gait patterns: left hemiplegic patients show better spatio-temporal parameters, whereas right hemiplegic patients show better segmentary motor performances. Therefore, further studies may develop and assess new personalized rehabilitation strategies considering the injured hemisphere and brain asymmetry.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Brain Asymmetry and Its Effects on Gait Strategies in Hemiplegic Patients: New Rehabilitative Conceptions

et al. 2022

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“…higher in the right-to-left direction than vice versa) [ 28 ], indicating a potential asymmetry in balance control. Evidence from studies on stroke patients suggest that right cerebral hemisphere has a more prominent role in balance control [ 29 , 30 ]. Considering the asymmetries observed in the upper limb and the prominent role of right hemisphere in balance, one would expect the non-dominant/non-preferred leg to exhibit a better static balance compared to the dominant/preferred leg.…”

Section: Discussionmentioning

confidence: 99%

The effects of leg preference and leg dominance on static and dynamic balance performance in highly-trained tennis players

Kozinc

Šarabon

2021

PLoS ONE

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In this study, 90 (51 males, 39 females) tennis players performed single-leg quiet stance and single-leg landing tasks. For the static standing task, center-of pressure (CoP) velocities, amplitudes, frequency and area were calculated. For the landing tasks, time to stabilization as well as dynamic postural stability index were considered. The analysis of differences between the legs was done based on two methods for a priori determination of leg preference, one based on the preference of kicking a ball and one based on the preference for single-leg jumping. An additional analysis was done based on the leg dominance (determined post hoc), based on the observed performance of the tasks. In case of the classification based on kicking a ball, there was a statistically significantly lower CoP anterior-posterior velocity and anterior-posterior amplitude in static balance task (p ≤ 0.017; 0.17 ≤ d ≤ 0.28) for the preferred leg. The CoP frequency was higher in the preferred leg for both directions (p ≤ 0.002; 0.10 ≤ d ≤ 0.22). For the landing task, CoP medial-lateral time to stabilization was statistically significantly shorter for the preferred leg (0.28 ± 0.38 s) compared to the non-preferred leg (0.47 ± 0.60 s) (p = 0.012; d = 0.38). There were no differences between the legs for the landing task. Moreover, there were no differences between the legs when we used the preference based on jumping for either of the tasks (d ≤ 0.14). The differences between legs in terms of observed dominance were larger than the differences based on the preference, which stresses the need for clear distinction of limb preference and limb dominance in research and practice. Regarding the effect of leg preference, small differences in static balance may exist between the legs (when the preference is based on kicking a ball).

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“…In right-handed individuals, the contralesional deficits are more severe after right hemisphere damage. Right hemisphere damage by stroke induces poorer muscular responses to stance perturbation and leads to poorer postural responses both in quiet and perturbed balance relative to left cerebral damage (Fernandes et al 2018 ; Coelho et al 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Unilateral traumatic brain injury of the left and right hemisphere produces the left hindlimb response in rats

et al. 2021

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Traumatic brain injury and stroke result in hemiplegia, hemiparesis, and asymmetry in posture. The effects are mostly contralateral; however, ipsilesional deficits may also develop. We here examined whether ablation brain injury and controlled cortical impact (CCI), a rat model of clinical focal traumatic brain injury, both centered over the left or right sensorimotor cortex, induced hindlimb postural asymmetry (HL-PA) with contralesional or ipsilesional limb flexion. The contralesional hindlimb was flexed after left or right side ablation injury. In contrast, both the left and right CCI unexpectedly produced HL-PA with flexion on left side. The flexion persisted after complete spinal cord transection suggesting that CCI triggered neuroplastic processes in lumbar neural circuits enabling asymmetric muscle contraction. Left limb flexion was exhibited under pentobarbital anesthesia. However, under ketamine anesthesia, the body of the left and right CCI rats bent laterally in the coronal plane to the ipsilesional side suggesting that the left and right injury engaged mirror-symmetrical motor pathways. Thus, the effects of the left and right CCI on HL-PA were not mirror-symmetrical in contrast to those of the ablation brain injury, and to the left and right CCI produced body bending. Ipsilateral effects of the left CCI on HL-PA may be mediated by a lateralized motor pathway that is not affected by the left ablation injury. Alternatively, the left-side-specific neurohormonal mechanism that signals from injured brain to spinal cord may be activated by both the left and right CCI but not by ablation injury.

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Right in Comparison to Left Cerebral Hemisphere Damage by Stroke Induces Poorer Muscular Responses to Stance Perturbation Regardless of Visual Information

Cited by 18 publications

References 45 publications

Brain Asymmetry and Its Effects on Gait Strategies in Hemiplegic Patients: New Rehabilitative Conceptions

Brain Asymmetry and Its Effects on Gait Strategies in Hemiplegic Patients: New Rehabilitative Conceptions

The effects of leg preference and leg dominance on static and dynamic balance performance in highly-trained tennis players

Unilateral traumatic brain injury of the left and right hemisphere produces the left hindlimb response in rats

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