共查询到20条相似文献,搜索用时 15 毫秒
1.
Chung Reen Kim Jong Yoon Yoo Sang Hoon Lee Dong Ho Lee Seung Chul Rhim 《Archives of physical medicine and rehabilitation》2010,91(10):1587-1592
Kim CR, Yoo JY, Lee SH, Lee DH, Rhim SC. Gait analysis for evaluating the relationship between increased signal intensity on T2-weighted magnetic resonance imaging and gait function in cervical spondylotic myelopathy.
Objective
To determine relationships between increased signal intensity (ISI) on T2-weighted cervical spine magnetic resonance imaging (MRI) and parameters of gait analysis in patients with cervical spondylotic myelopathy (CSM).Design
Retrospective comparative study.Setting
Gait analysis laboratory.Participants
Patients (N=36) who undertook cervical laminectomy or laminoplasty because of CSM.Interventions
Not applicable.Main Outcome Measures
Subjects were evaluated by using the modified Japanese Orthopaedic Association (JOA) scale, the Nurick scale, cervical spine MRI, and gait analysis. Two radiologists classified patients into 3 groups: intense, faint, and no ISI.Results
Relative to patients without ISI, those with ISI showed significantly slower gait speed, longer step time, decreased single-limb support time, increased double-limb support time, and limited range of motion of knee and ankle (P<.05). Increased intensity tended to correlate with poor gait function including slower gait speed, longer step time, decreased single-limb support time, and increased double-limb support time. The modified JOA and Nurick scale did not correlate with ISI.Conclusions
In patients with CSM who received surgical treatment, more intense ISI on T2-weighted MRI correlated preoperatively with increased difficulties in gait function. Gait analysis may be a useful tool for evaluating gait functions in cervical myelopathy. 相似文献2.
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O'Leary S Cagnie B Reeve A Jull G Elliott JM 《Archives of physical medicine and rehabilitation》2011,92(6):929-934
O'Leary S, Cagnie B, Reeve A, Jull G, Elliott JM. Is there altered activity of the extensor muscles in chronic mechanical neck pain? A functional magnetic resonance imaging study.
Objective
To compare the pattern of neck extensor muscle use in participants with chronic mechanical neck pain to that of healthy controls during 2 different extension exercises by use of muscle functional magnetic resonance imaging (mfMRI).Design
Cross-sectional.Setting
University laboratory.Participants
Data recorded from subjects with chronic mechanical neck pain (n=12; 10 women, 2 men) were compared with previously recorded data from healthy subjects (n=11; 7 men, 4 women).Interventions
Not applicable.Main Outcome Measures
mfMRI measures of shifts in T2 relaxation were made for the multifidus, semispinalis cervicis, semispinalis capitis, and splenius capitis muscles, at C2-3, C5-6, and C7-T1 levels, prior and immediately after 2 different exercises: cervical extension in craniocervical neutral (CCN) and cervical extension in craniocervical extension. T2 shift values (difference between pre- and postexercise T2 relaxation values) for each muscle and exercise condition were used for analysis.Results
While there were observed differences in differential activation of the extensor muscles in participants with mechanical neck pain compared with controls, these differences were only evident for the CCN exercise condition and were only observed for 3 out of the 7 muscle regions of interest during this exercise.Conclusions
Results of this study suggest some alteration in the differential activation of the cervical extensors in patients with mechanical neck pain and indicate that further investigation of this muscle group in mechanical neck pain disorders is warranted. 相似文献4.
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Strangman GE O'Neil-Pirozzi TM Goldstein R Kelkar K Katz DI Burke D Rauch SL Savage CR Glenn MB 《Archives of physical medicine and rehabilitation》2008,89(5):974-981
Strangman GE, O'Neil-Pirozzi TM, Goldstein R, Kelkar K, Katz DI, Burke D, Rauch SL, Savage CR, Glenn MB. Prediction of memory rehabilitation outcomes in traumatic brain injury by using functional magnetic resonance imaging.
Objective
To evaluate the ability of functional magnetic resonance imaging (fMRI) measures collected from people with traumatic brain injury (TBI) to provide predictive value for rehabilitation outcomes over and above standard predictors.Design
Prospective study.Setting
Academic medical center.Participants
Persons (N=54) with TBI greater than 1 year postinjury.Intervention
A novel 12-session group rehabilitation program focusing on internal strategies to improve memory.Main Outcome Measure
The Hopkins Verbal Learning Test−Revised (HVLT-R) delayed recall score.Results
fMRI measures were collected while participants performed a strategically directed word memorization task. Prediction models were multiple linear regressions with the following primary predictors of outcome: age, education, injury severity, preintervention HVLT-R, and task-related fMRI activation of the left dorsolateral and left ventrolateral prefrontal cortex (VLPFC). Baseline HVLT-R was a significant predictor of outcome (P=.007), as was injury severity (for severe vs mild, P=.049). We also found a significant quadratic (inverted-U) effect of fMRI in the VLPFC (P=.007).Conclusions
This study supports previous evidence that left prefrontal activity is related to strategic verbal learning, and the magnitude of this activation predicted success in response to cognitive memory rehabilitation strategies. Extreme under- or overactivation of VLPFC was associated with less successful learning after rehabilitation. Further study is necessary to clarify this relationship and to expand and optimize the possible uses of functional imaging to guide rehabilitation therapies. 相似文献8.
Sunita Mathur Donovan J. Lott Claudia Senesac Sean A. Germain Ravneet S. Vohra H. Lee Sweeney Glenn A. Walter Krista Vandenborne 《Archives of physical medicine and rehabilitation》2010,91(7):1051-1058
Mathur S, Lott DJ, Senesac C, Germain SA, Vohra RS, Sweeney HL, Walter GA, Vandenborne K. Age-related differences in lower-limb muscle cross-sectional area and torque production in boys with Duchenne muscular dystrophy.
Objective
To examine the relationship between lower-extremity muscle cross-sectional area, muscle strength, specific torque, and age in ambulatory boys with Duchenne muscular dystrophy (DMD) compared with controls.Design
Observational cross-sectional study.Setting
University research setting.Participants
Volunteer sample of boys with DMD (n=22) and healthy control boys (n=10), ages 5 through 14 years.Interventions
Not applicable.Main Outcome Measures
Maximal muscle cross-sectional area (CSAmax) assessed by magnetic resonance imaging of quadriceps, plantarflexors (PFs) and dorsiflexors (DFs), peak isometric torque from dynamometry, and timed functional tests.Results
The average CSAmax of the triceps surae muscle group was approximately 60% higher in boys with DMD compared with controls (39.1±13.6 cm2 vs 24.5±9.3 cm2; P=.002), while the tibialis anterior muscle showed age-appropriate increases in CSAmax. The increase in quadriceps CSAmax was also distinctly different in boys with DMD compared with controls. Specific torque (ie, peak torque/CSAmax) was impaired in all 3 muscles groups, with the knee extensor (KE) and PF muscles showing 4-fold, and the DF muscles 2-fold, higher values in controls compared with boys with DMD. Large age-related gains in specific torque were observed in all 3 muscle groups of control subjects, which were absent in ambulatory boys with DMD. Correlations were observed between performance on functional tasks and quadriceps and PF torque production (r=−.45 to −.57, P<.05), but not with DF strength.Conclusions
Age-related changes in muscle cross-sectional area and specific torque production in lower-extremity muscles showed distinctly different patterns in the KE, PF, and DF muscles of boys with DMD compared with controls. 相似文献9.
Arjen Bergsma Alessio Murgia Edith H. Cup Paul P. Verstegen Kenneth Meijer Imelda J. de Groot 《Archives of physical medicine and rehabilitation》2014
Objective
To compare the kinematics and muscle activity of subjects with facioscapulohumeral dystrophy (FSHD) and healthy control subjects during the performance of standardized upper extremity tasks.Design
Exploratory case-control study.Setting
A movement laboratory.Participants
Subjects (N=19) with FSHD (n=11) and healthy control subjects (n=8) were measured.Interventions
Not applicable.Main Outcome Measures
Kinematic data were recorded using a 3-dimensional motion capturing system. Muscle activities, recorded using electromyography, were obtained from 6 superficial muscles around the glenohumeral joint. Shoulder elevation and elbow flexion angles, and maximum electromyographic activity during the movements as a percentage of maximum voluntary contraction (MVC) were calculated.Results
Kinematic differences between the FSHD group and the healthy control group were found in the shoulder elevation angle during single shoulder movements and both reaching tasks. In general, subjects with FSHD had higher percentages of muscle activation. The median activity of the trapezius was close to the MVC activity during the single shoulder movements. Moreover, deltoid and pectoralis muscles were also highly active.Conclusions
Higher activation of the trapezius in subjects with FSHD indicates a mechanism that could help relieve impaired shoulder muscles during arm elevation around shoulder height. Compared with healthy subjects, persons with FSHD activated their shoulder muscles to a greater extent during movements that required arm elevation. 相似文献10.
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目的:了解脊髓变性期颈椎病的MRI表现。方法:研究分析41例脊髓变性期颈椎病患者的MRI图像及临床资料。结果:41例患者的MRI主要表现为椎间盘变性、膨出、脱出、黄韧带肥厚、椎体后缘骨刺形成、后纵韧带钙化、椎体滑脱及脊髓受压、水肿、软化、囊变、出血。结论:MRI扫描可为脊髓变性期颈椎病提供可靠的影像学根据,对该期颈椎病的诊断和治疗有重要意义 相似文献
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Ivye L.R. Pereira Bergson Queiroz Jefferson Loss César Amorim Isabel C.N. Sacco 《Journal of manipulative and physiological therapeutics》2017,40(5):350-357
Objective
The purpose of this study was to compare the electromyographic pattern of core muscles during intermediate Pilates mat exercises between healthy people and those with low back pain.Methods
We evaluated healthy participants (n = 19; mean ± standard deviation [SD]: age 28 ± 8 years, body mass 65 ± 10 kg, height 160.0 ± 9.1 cm) and a low back pain group (n = 13; mean ± SD: age 30 ± 9 years, body mass 67 ± 12 kg, height 170.0 ± 6.6 cm). Electromyographic analysis assessed the multifidus, external oblique, internal oblique, and rectus abdominis muscles during classical Pilates exercises (single leg stretch, criss-cross, and dead bug). We calculated the root mean square normalized by maximum voluntary contraction, and the time of peak activation was provided by a linear envelope and normalized by the total movement cycle.Results
The criss-cross exercise presented the highest values of root mean square for trunk flexors (rectus abdominis and oblique) compared with the other exercises, followed by the single leg stretch and the dead bug, which had similar muscle activation. The single leg stretch presented more activation of the rectus abdominis and oblique, whereas the criss-cross and dead bug created more activation of the oblique compared with the multifidus and rectus.Conclusions
The Pilates exercises presented different muscle recruitment patterns, and allowed the activation of the lumbopelvic stabilizing muscles even in the first session for healthy individuals and those with chronic low back pain. 相似文献15.
OBJECTIVES: To determine the distribution of leg muscle activity during heel raises using magnetic resonance imaging (MRI) with special emphasis on quantifying activity across multiple axial sections and to determine if there are differences among portions of active muscles. DESIGN: Pre- and postexercise (heel raise) T2-weighted time measurements were assessed by using repeated-measures analysis of variance (ANOVA) and t tests. SETTING: Laboratory and MRI suites. PARTICIPANTS: Eight healthy volunteers. INTERVENTION: Unilateral heel raises every 2 seconds for at least 60 seconds. MAIN OUTCOME MEASURES: Percentage changes from T2-weighted magnetic resonance images of the lateral gastrocnemius, medial gastrocnemius, peroneus longus, soleus, and tibialis anterior muscles, across 10 axial sections, exercise bouts, and a pre-exercise condition. RESULTS: The lateral gastrocnemius, medial gastrocnemius, peroneus longus, and soleus had significantly larger changes in T2 time from pre-exercise times than did the tibialis anterior for whole muscles as determined by using repeated-measures ANOVA and post hoc analyses. The medial gastrocnemius had a significantly greater change in T2 time than the lateral gastrocnemius. Proximal axial sections of the lateral gastrocnemius, medial gastrocnemius, and soleus had significantly larger changes in T2 time from pre-exercise than did distal sections. CONCLUSIONS: This work reconfirms that multiple muscles contribute to plantarflexor forces and additionally shows an apparent proximal versus subvolume organization of activity within the gastrocnemius, medial gastrocnemius, and soleus but not the peroneus longus. This proximal versus distal organization of muscle activity needs further investigation. There may be clinical implications for therapeutic interventions that require accurate placement of electrodes such as biofeedback. 相似文献
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磁共振成像在小儿脑瘫康复治疗中的应用价值 总被引:2,自引:0,他引:2
目的:探讨MRI在儿童脑瘫康复中的应用价值。材料与方法:对88例脑瘫患儿的临床和MRI资料进行回顾性分析,其中痉挛型脑瘫51例,肌张力低下型脑瘫7例,强直型脑瘫4例,共济失调型脑瘫7例,手足徐动型脑瘫4例,混合型脑瘫15例;在脑瘫治疗过程中27例病人进行了MRI随访。结果:MRI显示脑软化灶14例,大脑脑萎缩改变36例,小脑萎缩6例,脑室周围白质软化症17例,脑先天畸形11例。有15例患儿伴有大脑白质的髓鞘发育延迟。MRI显示脑瘫病灶的敏感性为95%。经过综合性康复治疗,患儿脑内的鞘发育延迟和脑萎缩病灶的改善及病人的肢体功能的康复程度之间存在显著性关联(x^2=6.31,P<0.05)。结论:MRI对儿童脑瘫的康复治疗具有重要的指导价值。 相似文献
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[Purpose] The purpose of the present study was to examine the amount of change in the
thicknesses of the deep cervical flexor (DCF) and sternocleidomastoid (SCM) muscles in
subjects with neck pain and subjects without neck pain during craniocervical flexion
exercise (CCFE). [Subjects] The total number of subjects was 40, comprising 20 in the
no-pain group (males 11, females 9) and 20 in the pain group (males 8, females 12).
[Methods] Muscle images were obtained using ultrasound, and the thicknesses of the
individual muscles were measured using the NIH ImageJ software. [Results] During CCFE, as
pressure increased, the no-pain group recruited the DCF more than the pain group, while
the pain group recruited the SCM more. [Conclusion] Selective DCF contraction exercises
are considered very useful in the treatment of patients with neck pain.Key words: Craniocervical flexion exercise, Deep cervical flexor, Sternocleidomastoid 相似文献
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Karin H. Gerrits Marijke J. Beltman Peter A. Koppe Hermanna Konijnenbelt Peter D. Elich Arnold de Haan Thomas W. Janssen 《Archives of physical medicine and rehabilitation》2009,90(3):480-487
Gerrits KH, Beltman MJ, Koppe PA, Konijnenbelt H, Elich PD, de Haan A, Janssen TW. Isometric muscle function of knee extensors and the relation with functional performance in patients with stroke.