American journal of physical medicine最新文献_第2页

Relationship between plasma somatomedin C and muscle performance in a geriatric male population. 血浆生长激素C与老年男性肌肉表现的关系。

American journal of physical medicine Pub Date : 1988-12-01 DOI: 10.1097/00002060-198812000-00005

D. Capuano-Pucci, W. Rheault, D. Rudman

引用次数: 2

Neuropsycho-social rehabilitation of head injury. 颅脑损伤的神经心理社会康复。

American journal of physical medicine Pub Date : 1988-12-01 DOI: 10.1097/00002060-198812000-00001

J. Askenasy, L. Rahmani

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引用次数: 27

Two-muscle coordination versus natural treadmill locomotion. 双肌肉协调与自然跑步机运动。

American journal of physical medicine Pub Date : 1988-12-01 DOI: 10.1097/00002060-198812000-00006

M. Wetzel, D. L. Pierce

{"title":"Two-muscle coordination versus natural treadmill locomotion.","authors":"M. Wetzel, D. L. Pierce","doi":"10.1097/00002060-198812000-00006","DOIUrl":"https://doi.org/10.1097/00002060-198812000-00006","url":null,"abstract":"When a single-muscle learned behavior was superimposed upon natural human treadmill locomotion, in previous work, it operated as a self-contained behavioral unit. The new behavior altered some features, however, of ongoing stepping patterns. These findings prompted broader consideration of how individual muscle actions combine to form large, patterned ensembles. Accordingly, the present experiment constructed a larger, double-muscle learned behavior to see if it would compete with natural treadmill locomotion or combine with it harmoniously. A demanding requirement was made for in-phase bilateral EMG and contraction by rectus femoris (RF), in opposition to its natural out-of-phase interlimb pattern. EMG bursts were controlled, through computer-assisted operant conditioning, by a flash shortly after left heel strike. The new, double ensemble was conditioned rapidly, within 1-6 days, for all four adults. Harmonious stepping continued, for the most part, with little alteration in step cycle timings. Leg positioning was modified appreciably, however, pointing to complex neural mechanisms. The evidence argued that operant conditioning can construct fine-grained behaviors and also participate powerfully across the full range of single- and interlimb coordination.","PeriodicalId":75477,"journal":{"name":"American journal of physical medicine","volume":"66 6 1","pages":"371-85"},"PeriodicalIF":0.0,"publicationDate":"1988-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00002060-198812000-00006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61801146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Relationship between plasma somatomedin C and muscle performance in a geriatric male population. 血浆生长激素C与老年男性肌肉表现的关系。

American journal of physical medicine Pub Date : 1987-12-01

D Capuano-Pucci, W Rheault, D Rudman

引用次数: 0

Two-muscle coordination versus natural treadmill locomotion. 双肌肉协调与自然跑步机运动。

American journal of physical medicine Pub Date : 1987-12-01

M C Wetzel, D L Pierce

{"title":"Two-muscle coordination versus natural treadmill locomotion.","authors":"M C Wetzel, D L Pierce","doi":"","DOIUrl":"","url":null,"abstract":"When a single-muscle learned behavior was superimposed upon natural human treadmill locomotion, in previous work, it operated as a self-contained behavioral unit. The new behavior altered some features, however, of ongoing stepping patterns. These findings prompted broader consideration of how individual muscle actions combine to form large, patterned ensembles. Accordingly, the present experiment constructed a larger, double-muscle learned behavior to see if it would compete with natural treadmill locomotion or combine with it harmoniously. A demanding requirement was made for in-phase bilateral EMG and contraction by rectus femoris (RF), in opposition to its natural out-of-phase interlimb pattern. EMG bursts were controlled, through computer-assisted operant conditioning, by a flash shortly after left heel strike. The new, double ensemble was conditioned rapidly, within 1-6 days, for all four adults. Harmonious stepping continued, for the most part, with little alteration in step cycle timings. Leg positioning was modified appreciably, however, pointing to complex neural mechanisms. The evidence argued that operant conditioning can construct fine-grained behaviors and also participate powerfully across the full range of single- and interlimb coordination.","PeriodicalId":75477,"journal":{"name":"American journal of physical medicine","volume":"66 6","pages":"371-85"},"PeriodicalIF":0.0,"publicationDate":"1987-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14559018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Poliomyelitis: late and unusual sequelae. 脊髓灰质炎:晚期和不寻常的后遗症。

American journal of physical medicine Pub Date : 1987-12-01

S J Frustace

{"title":"Poliomyelitis: late and unusual sequelae.","authors":"S J Frustace","doi":"","DOIUrl":"","url":null,"abstract":"The purpose of this study is to provide a thorough and comprehensive description of the late onset manifestations of poliomyelitis (PM). In addition, unusual findings, seen in the post-poliomyelitis period, have been presented to further increase awareness of the potential diversity of the problem. The scope of PM sequelae is broad. Following a description of acute PM, the various sequelae are addressed categorically. These include neurologic, vascular, orthopedic, respiratory, sleep and psychologic problems; as well as less commonly recognized maladies. Different theories for PM sequelae have been proposed. Thorough electrodiagnostic testing can frequently confirm or negate the clinical impression. The pathophysiology of vascular problems, as well as the correlation between respiratory involvement, sleep disorders, and hypertension, is reviewed. Orthopedic problems and spinal deformities are discussed. Since overuse weakness is frequently present in these patients, the role of slowly progressive non-fatiguing exercise in their rehabilitation is emphasized. Of significance are the emotional concerns demonstrated by this group of patients. Further considerations include those sequelae not readily recognized in relation to PM. A brief overview of present epidemiologic trends in the United States, and the immunologic effects of vaccination, is presented.","PeriodicalId":75477,"journal":{"name":"American journal of physical medicine","volume":"66 6","pages":"328-37"},"PeriodicalIF":0.0,"publicationDate":"1987-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14450112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Activity of motor units during concentric and eccentric contractions. 同心和偏心收缩时运动单元的活动。

American journal of physical medicine Pub Date : 1987-12-01

T Moritani, S Muramatsu, M Muro

{"title":"Activity of motor units during concentric and eccentric contractions.","authors":"T Moritani, S Muramatsu, M Muro","doi":"","DOIUrl":"","url":null,"abstract":"Motor unit activity was investigated in the biceps brachii of twelve men during concentric (CC) and eccentric (EC) contractions by means of computer aided intramuscular spike amplitude-frequency (ISAF) histograms and surface EMG frequency power spectral analyses. Simultaneous recordings of the intramuscular and surface EMG signals were made during both types of contractions with the elbow joint angle varying from 30 to 150 degrees in reference to a fully extended position. Results demonstrated that r.m.s. amplitude and mean power frequency of the surface EMG were significantly higher during CC, particularly at shorter muscle length; e.g., 259 vs. 131 microV (p less than 0.01) and 102 vs. 91 Hz (p less than 0.05). The intramuscular spike recordings made at 45, 90 and 135 degrees showed greater motor unit (MU) activities during CC along with the presence of MUs with relatively large spike amplitude. The pooled data on the ISAF histograms revealed significantly greater mean MU spike amplitude and frequency during CC as compared to EC; e.g., 439 vs. 108 microV and 16.1 vs. 13.0 Hz at 135 degrees, respectively. These data suggest that EC is associated with much less pronounced MU recruitment and rate modulation due to economical tension development which might be a result of better utilization of elastic energy, particularly those inherent in the actin-myosin cross bridges and also a favorable length-tension relationship under the present experimental conditions.","PeriodicalId":75477,"journal":{"name":"American journal of physical medicine","volume":"66 6","pages":"338-50"},"PeriodicalIF":0.0,"publicationDate":"1987-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14450113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Neuropsycho-social rehabilitation of head injury. 颅脑损伤的神经心理社会康复。

American journal of physical medicine Pub Date : 1987-12-01

J J Askenasy, L Rahmani

{"title":"Neuropsycho-social rehabilitation of head injury.","authors":"J J Askenasy, L Rahmani","doi":"","DOIUrl":"","url":null,"abstract":"The present article summarizes 10 years of experience in head injury rehabilitation at Loewenstein Rehabilitation Center. The goal of rehabilitation in head injured patients consists of returning to work and adaptation to: interpersonal consequences of disability; new affective needs; and capacity to attend to financial, legal and bureaucratic matters. The achievement of these goals goes far beyond neurological boundaries in the ordinary narrow sense and needs a neuropsycho-social approach. Neuropsycho-social rehabilitation in head injury has multidimensional clinical aspects. Two problems should be emphasised: a) gross neurological disability (mono, hemi, para and triplegia) found in the presence of good cognitive function (patients easy to rehabilitate) and b) minor neurological disability found in the presence of gross cognitive impairment (patients not easy to rehabilitate). Posttraumatic epilepsy needs general criteria for its management. It is preferable to wait for the first seizure in order to start anticonvulsant treatment, except for 3 at risk conditions: 1) diffuse bilateral injury 2) prolonged coma, and 3) intracerebral hematoma. The first 3 years is the maximum at risk period. The traumatic syndrome consisting of impaired insight and behaviour disturbances is underdiagnosed owing to the absence of neurological signs. The sleep disturbances accompanying head injury are usually underestimated.","PeriodicalId":75477,"journal":{"name":"American journal of physical medicine","volume":"66 6","pages":"315-27"},"PeriodicalIF":0.0,"publicationDate":"1987-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14255031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Neurogenic heterotopic ossification. 神经源性异位骨化。

American journal of physical medicine Pub Date : 1987-12-01

L L Jensen, E Halar, J W Little, M M Brooke

引用次数: 0

Effect of negative air ionization on hyperactive and autistic children. 负空气电离对多动症和自闭症儿童的影响。

American journal of physical medicine Pub Date : 1987-10-01

A Yates, F Gray, L E Beutler, D E Sherman, E M Segerstrom

引用次数: 0