Does motor lateralization have implications for stroke rehabilitation?

Sainburg, Robert L.; Duff, Susan V.

doi:10.1682/jrrd.2005.01.0013

Cited by 60 publications

(38 citation statements)

References 118 publications

(220 reference statements)

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“…The direction of transfer, however, varies across studies, in that some studies have shown greater transfer after initial practice with the dominant hand [13, 32], while others have shown greater transfer after initial practice with the nondominant hand [15, 17, 33]. The precise reason for this asymmetric transfer is currently not clear, although scientists have linked this observation to the idea of hemispheric specialization for certain movement variables (e.g., kinematic vs. dynamic) [16, 18, 20]. Unlike upper-extremity studies, the evidence for asymmetric transfer effects is not consistent in lower-extremity studies.…”

Section: Discussionmentioning

confidence: 99%

“…One specific finding is that the amount of interlimb transfer of motor learning appears to be asymmetric or side-specific, with one limb showing greater ability to learn from practice on the other limb [3, 5, 15–17]. Whether it is the dominant or non-dominant limb that shows greater transfer seems to be a function of the task, and this asymmetry has been linked to the idea of hand/hemispheric dominance [16, 18–20]. However, while there is strong evidence for this asymmetry in the upper limb, the evidence for inter-limb transfer in the lower-limb has been mixed.…”

Section: Introductionmentioning

confidence: 99%

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Interlimb transfer of motor skill learning during walking: No evidence for asymmetric transfer

2017

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Several studies have shown that learning a motor skill in one limb can transfer to the opposite limb–a phenomenon called as interlimb transfer. The transfer of motor skills between limbs, however, has shown to be asymmetric, where one side benefits to a greater extent than the other. While this phenomenon has been well-documented in the upper-extremity, evidence for interlimb transfer in the lower-extremity is limited and mixed. This study investigated the extent of interlimb transfer during walking, and tested whether this transfer was asymmetric using a foot trajectory-tracking paradigm that has been specifically used for gait rehabilitation. The paradigm involved learning a new gait pattern which required greater hip and knee flexion during the swing phase of the gait while walking on a treadmill. Twenty young adults were randomized into two equal groups, where one group (right-to-left: RL) practiced the task initially with the dominant right leg and the other group (left-to-right: LR) practiced the task initially with their non-dominant left leg. After training, both groups practiced the task with their opposite leg to test the transfer effects. The changes in tracking error on each leg were computed to quantify learning and transfer effects. The results indicated that practice with one leg improved the motor performance of the other leg; however, the amount of transfer was similar across groups, indicating that there was no asymmetry in transfer. This finding is contradictory to most upper-extremity studies (where asymmetric transfer has been reported) and points out that both differences in neural processes and types of tasks may mediate interlimb transfer.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interlimb transfer of motor skill learning during walking: No evidence for asymmetric transfer

2017

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“…Studies on patients with stroke have demonstrated deficiencies that reflect these distinctions (78), data that may help to explain why patients with stroke may have some difficulties also with the hand corresponding to the intact hemisphere. The subspecialization and function of the ipsilateral hand may be of importance particularly for patients with severe motor dysfunction that must relay on the ipsilateral intact hand for some activities of daily living (79).…”

Section: Hemispheric Subspecialization In Motor Activitiesmentioning

confidence: 99%

Current trends in stroke rehabilitation. A review with focus on brain plasticity

Johansson

2010

Acta Neurologica Scandinavica

245

157

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“…This role is easy to explain with regard to bimanual functional tasks such as cutting bread (Guiard 1987). The left hand must stabilize the bread despite forces put on it by the right (cutting) hand (Sainburg and Duff 2006).…”

Section: Discussionmentioning

confidence: 99%

“…In addition, there is a paucity of literature regarding the capacity of the previously non-dominant limb to learn its new role (Peters, 2004). It appears that the ipsilesional non-dominant limb does not become a truly dominant limb since the kinematic and dynamic features characterizing the right and left sides may persist in the less affected limb of stroke patients, after many years (Sainburg and Duff, 2006). Differences in the functional neuroanatomy due to brain lateralization may persist despite years of practice as shown by Siebner et al (2002) who observed that left-handed healthy adults forced to write with their right hands since childhood had differences in cortical activation, despite having similar handwriting kinematics as right-handed subjects.…”

Section: Discussionmentioning

confidence: 99%

Influence of the side of brain damage on postural upper-limb control including the scapula in stroke patients

2012

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Following stroke, control of both the contralesional (paretic) and ipsilesional (less affected) arms is altered. The purpose of this study was to analyse the consequences of stroke on joint rotations of both shoulder girdles, that is, glenohumeral (GH) and scapula motion. Because of hemispheric specialization, we hypothesized that changes would relate to the side of hemisphere damage. Nine stroke patients with left, and 9 with right hemisphere damage (LHD and RHD) and 9 healthy subjects were included. Reaching movements to targets positioned close, far and high in three directions were recorded using an electromagnetic system. Initial and final postures of the scapula, GH and elbow joint were evaluated. Inter-joint rotations throughout the movements were analysed using principal component analysis (PCA). The main finding was that initial and final postures of the contralesional and ipsilesional shoulders differed depending on the side of brain lesion. On the contralesional side, there was less scapula protraction and GH lateral rotation for both groups. Scapula tilt was less anterior in LHD patients, and GH elevation was greater in RHD patients. On the ipsilesional side, GH lateral rotation was reduced in both groups, and scapula protraction was reduced only for LHD patients. PCA confirmed that postures of both shoulders of the LHD group were substantially different to the healthy subjects, while only the contralesional arm of the RHD subjects differed. These results add to existing knowledge of hemispheric specialization, suggesting that the left hemisphere plays a greater role in bilateral joint postures than the right hemisphere.

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Does motor lateralization have implications for stroke rehabilitation?

Cited by 60 publications

References 118 publications

Interlimb transfer of motor skill learning during walking: No evidence for asymmetric transfer

Interlimb transfer of motor skill learning during walking: No evidence for asymmetric transfer

Current trends in stroke rehabilitation. A review with focus on brain plasticity

Influence of the side of brain damage on postural upper-limb control including the scapula in stroke patients

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