1
|
Guder S, Pasternak O, Gerloff C, Schulz R. Strengthened structure-function relationships of the corticospinal tract by free water correction after stroke. Brain Commun 2021; 3:fcab034. [PMID: 33959708 PMCID: PMC8088790 DOI: 10.1093/braincomms/fcab034] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/23/2020] [Accepted: 01/27/2021] [Indexed: 11/23/2022] Open
Abstract
The corticospinal tract is the most intensively investigated tract of the human motor system in stroke rehabilitative research. Diffusion-tensor-imaging gives insights into its microstructure, and transcranial magnetic stimulation assesses its excitability. Previous data on the interrelationship between both measures are contradictory. Correlative or predictive models which associate them with motor outcome are incomplete. Free water correction has been developed to enhance diffusion-tensor-imaging by eliminating partial volume with extracellular water, which could improve capturing stroke-related microstructural alterations, thereby also improving structure-function relationships in clinical cohorts. In the present cross-sectional study, data of 18 chronic stroke patients and 17 healthy controls, taken from a previous study on cortico-cerebellar motor tracts, were re-analysed: The data included diffusion-tensor-imaging data quantifying corticospinal tract microstructure with and without free water correction, transcranial magnetic stimulation data assessing recruitment curve properties of motor evoked potentials and detailed clinical data. Linear regression modelling was used to interrelate corticospinal tract microstructure, recruitment curves properties and clinical scores. The main finding of the present study was that free water correction substantially strengthens structure-function associations in stroke patients: Specifically, our data evidenced a significant association between fractional anisotropy of the ipsilesional corticospinal tract and its excitability (P = 0.001, adj. R2 = 0.54), with free water correction explaining additional 20% in recruitment curve variability. For clinical scores, only free water correction leads to the reliable detection of significant correlations between ipsilesional corticospinal tract fractional anisotropy and residual grip (P = 0.001, adj. R2 = 0.70) and pinch force (P < 0.001, adj. R2 = 0.72). Finally, multimodal models can be improved by free water correction as well. This study evidences that corticospinal tract microstructure directly relates to its excitability in stroke patients. It also shows that unexplained variance in motor outcome is considerably reduced by free water correction arguing that it might serve as a powerful tool to improve existing models of structure-function associations and potentially also outcome prediction after stroke.
Collapse
Affiliation(s)
- Stephanie Guder
- Department of Neurology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Ofer Pasternak
- Departments of Psychiatry and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Christian Gerloff
- Department of Neurology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Robert Schulz
- Department of Neurology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| |
Collapse
|
2
|
Huang Y, Jiao J, Hu J, Hsing C, Lai Z, Yang Y, Hu X. Measurement of sensory deficiency in fine touch after stroke during textile fabric stimulation by electroencephalography (EEG). J Neural Eng 2020; 17:045007. [PMID: 32613946 DOI: 10.1088/1741-2552/aba160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Objective Sensory deficiency of fine touch limits the restoration of motor functions after stroke, and its evaluation was seldom investigated from a neurological perspective. In this study, we investigated the cortical response measured by electroencephalography (EEG) on the fine touch sensory impairment during textile fabric stimulation after stroke. Approach Both participants with chronic stroke (n = 12, stroke group) and those unimpaired (n = 15, control group) were recruited. To investigate fine touch during textile fabric stimulations, full brain EEG recordings (64-channel) were used, as well as the touch sensation questionnaires based on the American Association of Textile Chemists and Colorists (AATCC) Evaluation Procedure 5. During the EEG measurement, relative spectral power (RSP) and EEG topography were used to evaluate the neural responses toward the fabric stimuli. In the subjective questionnaire, the fine touch for fabric stimuli was rated and represented by 13 different sensation parameters. The correlation between the fine touch evaluated by the EEG and the questionnaire was also investigated. Main results The neural responses of individuals with fine touch impairments after stroke were characterized by a shifted power spectrum to a higher frequency band, enlarged sensory cortical areas and higher RSP intensity (P < 0.05). Asymmetric neural responses were obtained when stimulating different upper limbs for both unimpaired participants and stroke participants (P < 0.05). The fine touch sensation of the stroke participants was impaired even in the unaffected limb. However, as a result of different neural processes, the correlation between the EEG and the questionnaire was weak (r < 0.2). Significance EEG RSP was able to capture the varied cortical responses induced by textile fabric fine touch stimulations related to the fine touch sensory impairment after stroke.
Collapse
Affiliation(s)
- Yanhuan Huang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
3
|
Støve MP, Larsen BT. Self-monitoring – usability evaluation of heart rate monitoring using wearable devices in patients with acquired brain injury. EUROPEAN JOURNAL OF PHYSIOTHERAPY 2019. [DOI: 10.1080/21679169.2019.1628300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Morten P. Støve
- Department of Physiotherapy, University College of Northern Denmark (UCN), Aalborg, Denmark
| | - Birgit T. Larsen
- Department of Physiotherapy, University College of Northern Denmark (UCN), Aalborg, Denmark
| |
Collapse
|
4
|
Zhang L, Zhao Y, Shen C, Lei L, Dong J, Zou D, Zou J, Wang M. Can Long-Term Regular Practice of Physical Exercises Including Taichi Improve Finger Tapping of Patients Presenting With Mild Cognitive Impairment? Front Physiol 2018; 9:1396. [PMID: 30323772 PMCID: PMC6172313 DOI: 10.3389/fphys.2018.01396] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 09/13/2018] [Indexed: 12/14/2022] Open
Abstract
Background: Mild cognitive impairment (MCI) is a brain disease with both anatomical and functional alterations. There is clear evidence that individuals that are diagnosed with MCI have a high risk to develop dementia in the next 2–5 years compared to an age-matched population with a non-MCI diagnosis. The present study aimed to investigate whether the finger tapping frequency of patients with MCI was different from that of healthy individuals without MCI, and whether Tai Chi, a traditional Chinese movement discipline, could improve the finger tapping frequency of MCI patients. Methods: The study population consisted of subjects of ≥50 years of age. Group one included 40 subjects without exercise habits from communities of Yangpu District in Shanghai, and group two included 60 subjects from a Tai Chi class in Shanghai Elderly University of Huangpu District. The Montreal Cognitive Assessment (MoCA) and a finger tapping test were conducted to assess the finger tapping frequency of all subjects. Results: The MoCA score of MCI subjects was significantly lower compared to subjects without MCI (P < 0.01), and was not influenced by age, weight, or height. The finger tapping frequency of MCI subjects’ left hands was significantly lower compared to that of healthy subjects without MCI (P < 0.01), and a similar trend was observed for the subjects’ right hand. The MoCA score of MCI subjects in the Tai Chi class was significantly lower than that of healthy subjects without MCI (P < 0.01), which was not influenced by age, weight or height. The finger tapping frequency of MCI subjects’ right hands was lower compared to that of healthy subjects in the Tai Chi class without MCI (P < 0.05), but no significant difference regarding the finger tapping frequency of the left hand was observed. Conclusion: These findings suggested that finger tapping frequency of MCI subjects was significantly lower compared to normal subjects without MCI, and long-term Tai Chi exercise could reduce this significant difference. Moreover, there was no significant difference between groups for the subjects’ non-dominant (left) hand.
Collapse
Affiliation(s)
- Lingli Zhang
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yilong Zhao
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Chao Shen
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Le Lei
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Junjie Dong
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Dongchen Zou
- Shanghai Foreign Language School, Shanghai, China
| | - Jun Zou
- Development and Planning Office, Shanghai University of Sport, Shanghai, China
| | - Miao Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| |
Collapse
|
5
|
Zhang L, Lei L, Zhao Y, Wang R, Zhu Y, Yu Z, Zhang X. Finger Tapping Outperforms the Traditional Scale in Patients With Peripheral Nerve Damage. Front Physiol 2018; 9:1361. [PMID: 30327614 PMCID: PMC6174539 DOI: 10.3389/fphys.2018.01361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 09/07/2018] [Indexed: 11/13/2022] Open
Abstract
Objective: This study aimed to investigate whether there exist the limits of finger tapping frequency in the peripheral nerve injury detection in upper limb, and the effects of rehabilitation treatment on upper limb with peripheral nerve injury through finger tapping. Methods: Here, 54 patients with peripheral nerve injury in upper limb were selected. We conducted finger tapping frequency test and Lind-mark hand function assessment score on the 54 subjects, and recorded the data 2-week before and after rehabilitation treatment. Results: Finger tapping frequency and Lind-mark hand function assessment score have a high positive correlation regardless of the side of upper limb with peripheral nerve injury before and after the rehabilitation treatment. Finger tapping frequency of the right affected hand after treatment is significantly higher than that of before treatment (male: P < 0.05; female: P < 0.01), while finger tapping frequency of the left affected hand after treatment shows no significant difference compared to before treatment. Meanwhile, finger tapping frequency of the female subjects' unaffected hand after treatment is significantly higher than before treatment (left: P < 0.01; right: P < 0.05), however, this was not observed in male subjects. Based on data analysis, there is a high-correlation between finger tapping frequency and Lind-mark score of the patients' affected hand with brachial plexus nerve injury. A trend of the patients' affected hand with radial nerve injury is similar with brachial plexus nerve injury. Conclusion: Compared with Lind-mark score, finger tapping frequency outperformed in the aspect of speed of neural impulse conduction in patients with peripheral nerve damage.
Collapse
Affiliation(s)
- Lingli Zhang
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Le Lei
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yilong Zhao
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Rong Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yulian Zhu
- Shanghai Fudan University Affiliated Huashan Hospital, Shanghai, China
| | - Zhusheng Yu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Xiaojing Zhang
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Xiaojing Zhang
| |
Collapse
|
6
|
Ambron E, Jax S, Schettino LF, Coslett HB. Magnifying vision improves motor performance in individuals with stroke. Neuropsychologia 2018; 119:373-381. [PMID: 30172830 DOI: 10.1016/j.neuropsychologia.2018.08.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/25/2018] [Accepted: 08/29/2018] [Indexed: 10/28/2022]
Abstract
Increasing perceived hand size using magnifying lenses improves tactile discrimination and motor performance in neurologically-intact individuals. We tested whether magnification of the hand can improve motor function in individuals with chronic stroke. Twenty-five individuals with a history of stroke more than 6 months prior to testing underwent a series of tasks exploring different aspects of motor performance (grip force, finger tapping, reaching and grasping, and finger matching) under two visual conditions: magnified or normal vision. Performance was also assessed shortly after visual manipulation to test if these effects persisted. Twenty-eight percent of individuals showed an immediate significant improvement averaged across all tasks with magnification; similar beneficial responses were also observed in 32% of individuals after a short delay. These results suggest that magnification of the image of the hand may be of utility in rehabilitation of individuals with stroke.
Collapse
Affiliation(s)
- Elisabetta Ambron
- Laboratory for Cognition and Neural Stimulation, Dept. of Neurology, Perelman School of Medicine at the University of Pennsylvania, United States.
| | - Steven Jax
- Perceptual-Motor Control Laboratory, Moss Rehabilitation Research Institute (MRRI), United States
| | | | - H Branch Coslett
- Laboratory for Cognition and Neural Stimulation, Dept. of Neurology, Perelman School of Medicine at the University of Pennsylvania, United States.
| |
Collapse
|
7
|
Trinh T, Shiner CT, Thompson-Butel AG, McNulty PA. Targeted upper-limb Wii-based Movement Therapy also improves lower-limb muscle activation and functional movement in chronic stroke. Disabil Rehabil 2016; 39:1939-1949. [DOI: 10.1080/09638288.2016.1213892] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Terry Trinh
- Neuroscience Research Australia, Sydney, NSW, Australia
- Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Christine T. Shiner
- Neuroscience Research Australia, Sydney, NSW, Australia
- Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Angelica G. Thompson-Butel
- Neuroscience Research Australia, Sydney, NSW, Australia
- Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Penelope A. McNulty
- Neuroscience Research Australia, Sydney, NSW, Australia
- Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, Australia
| |
Collapse
|
8
|
Balcı NC, Dogru E, Aytar A, Gokmen O, Depreli O. Comparison of upper extremity function, pain, and tactile sense between the uneffected side of hemiparetic patients and healthy subjects. J Phys Ther Sci 2016; 28:1998-2001. [PMID: 27512250 PMCID: PMC4968492 DOI: 10.1589/jpts.28.1998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 04/07/2016] [Indexed: 11/24/2022] Open
Abstract
[Purpose] The aim of this study was to compare the unaffected upper extremity of patients with hemiparesis with that of healthy subjects in terms of function, pain, and tactile sense. [Subjects and Methods] Upper extremity evaluation parameters of 20 patients with hemiparesis were compared with an age-matched control group of 20 healthy subjects. A shorter version of the Disability of Arm and Shoulder Questionnaire, Upper Extremity Functional Index, and Simple Shoulder Test were used to evaluate the upper extremity functionality. The Visual Analog Scale was used to measure pain severity at rest, at night, and during activity. Tactile sensation levels were assessed by Semmes-Weinstein monofilaments at four palmar areas. [Results] A statistically significant difference was found in the upper extremity functionality between the groups. Pain severity at rest was significantly higher in the hemiparetic group. There was no significant difference in night and activity pain severities or tactile sensation levels between the groups. [Conclusion] According to our results, the unaffected side of patients with hemiparesis differs in functionality and pain at rest compared with that of healthy persons. Studies with larger sample size and various evaluation tests are needed to further investigate the unaffected side of patients with hemiparesis.
Collapse
Affiliation(s)
- Nilay Comuk Balcı
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Baskent University: Eskisehir Road 20.Km. Baglica, Ankara, Turkey
| | - Esra Dogru
- School of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Mustafa Kemal University, Turkey
| | - Aydan Aytar
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Baskent University: Eskisehir Road 20.Km. Baglica, Ankara, Turkey
| | - Ozge Gokmen
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Baskent University: Eskisehir Road 20.Km. Baglica, Ankara, Turkey
| | - Ozde Depreli
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Eastern Mediterranean University, Turkey
| |
Collapse
|
9
|
Zhang L, Han X, Li P, Liu Y, Zhu Y, Zou J, Yu Z. A study of tapping by the unaffected finger of patients presenting with central and peripheral nerve damage. Front Hum Neurosci 2015; 9:260. [PMID: 26029080 PMCID: PMC4429569 DOI: 10.3389/fnhum.2015.00260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 04/21/2015] [Indexed: 11/13/2022] Open
Abstract
AIM Whether the unaffected function of the hand of patients presenting with nerve injury is affected remains inconclusive. We aimed to evaluate whether there are differences in finger tapping following central or peripheral nerve injury compared with the unaffected hand and the ipsilateral hand of a healthy subject. METHODS Thirty right brain stroke patients with hemiplegia, 30 left arm peripheral nerve injury cases, and 60 healthy people were selected. We tested finger tapping of the right hands, and each subject performed the test twice. RESULTS Finger tapping following peripheral nerve injury as compared with the unaffected hand and the dominant hand of a healthy person was markedly higher than was found for central nerve injury (P < 0.05). Finger tapping of the male peripheral group's unaffected hand and the control group's dominant hand was significantly higher than the central group (P < 0.001). However, finger tapping of the female control group's dominant hand was significantly higher than the central group's unaffected hand (P < 0.01, P = 0.002), the peripheral group's unaffected hand (P < 0.05, P = 0.034). CONCLUSION The unaffected function of the hand of patients with central and peripheral nerve injury was different as compared with the ipsilateral hand of healthy individuals. The rehabilitation therapist should intensify the practice of normal upper limb fine activities and coordination of the patient.
Collapse
Affiliation(s)
| | - Xiuying Han
- Shandong University of Finance and Economics , Jinan , China
| | - Peihong Li
- Shanghai University of Sport , Shanghai , China
| | - Yang Liu
- School of Physical Education and Coaching, Shanghai University of Sport , Shanghai , China
| | - Yulian Zhu
- Shanghai Fudan University Affiliated Huashan Hospital , Shanghai , China
| | - Jun Zou
- Shanghai University of Sport , Shanghai , China
| | - Zhusheng Yu
- Shanghai University of Sport , Shanghai , China
| |
Collapse
|