PubMed Health⌕ Search

Biomedical subjects

S Thorn

Publications and source records attributed to S Thorn.

10 recordsLinked to original sources
PubMed2006

Trapezius muscle rest time during standardised computer work--a comparison of female computer users with and without self-reported neck/shoulder complaints.

Work related musculoskeletal disorders (WMSDs) in the shoulder/neck area are a common and increasing problem among European computer workers, especially women. Long-term low-level workloads with low degree of muscle rest are a potential risk factor for developing WMSDs. The purpose of the present study of female computer users (age 45-65 years) in Denmark and Sweden was to investigate if subjects with self-reported neck/shoulder complaints (cases, N=35) show less trapezius muscle relative rest time (RRT) than controls (N=44) when performing standardised short-term computer work tasks in controlled laboratory conditions. Surface electromyography (EMG) signals were recorded bilaterally from the upper trapezius muscles during a type, edit, precision and colour word stress task. Besides RRT, 10th percentile RMS values were calculated. On the average, 15 of the cases and 18 of the controls showed analysable EMG files per task. For the colour word stress task, the results showed lower RRT values and higher 10th percentile RMS amplitude levels among cases compared to controls. No such signs could be found for the other tasks performed. The present results indicate an increased motor response to a psychological stressor among subjects with self-reported neck/shoulder complaints.

Aged↗
PubMed2005

Neuromuscular assessment in elderly workers with and without work related shoulder/neck trouble: the NEW-study design and physiological findings.

Musculoskeletal disorders in the neck and shoulder area are a major occupational concern in the European countries especially among elderly females. The aim was to assess these disorders based on quantitative EMG indicators and functional tests. 252 female computer users (45-68 years) were recruited from four European countries in two contrast groups: (1) 88 neck/shoulder (NS) cases reporting trouble in the neck and/or shoulder region for more than 30 days during the last year, and (2) 164 NS-controls reporting such trouble for no more than 7 days. Questionnaires, functional/clinical tests, and physiological recordings were performed in workplace related field studies. The results showed no differences in anthropometrics but NS-cases reported more strained head positions and more eye problems than controls. The psychosocial working factors were similar, although, NS-controls had slightly better scores on working conditions, general health, and vitality compared to cases. The NS-cases had lower maximal voluntary contraction (MVC) during shoulder elevation (mean (SD) 310 (122) N) compared to the controls (364 (122) N). During 30% MVC electromyography (EMGrms) in the trapezius muscle was lower in NS-cases (194 (105) muV) than in controls (256 (169) muV), while no differences were found regarding endurance time. Estimated conduction velocity was not different between NS-cases and -controls. Four functional computer tests were performed equally well by NS-cases and -controls, and the corresponding EMG variables also did not differ. A major finding in this large-scale epidemiological study is the significantly lower MVC in NS-cases compared with NS-controls together with lower EMGrms value at 30% MVC, while computer tasks were performed at similar relative muscle activation. The study was unable to reveal quantitative EMG indicators and functional tests that could objectively assess disorders in NS-cases.

Adult↗
PubMed2000

Neurological rehabilitation nursing: a review of the research.

Neurological rehabilitation is increasingly seen as a specialist form of rehabilitation requiring specialist nursing knowledge. However, as in many areas of nursing, nurses in this field recognize that there is a need to increase their knowledge base to ensure that they provide the best and most up-to-date quality care for their patients and their families. To achieve high levels of competence, neurological rehabilitation nurses need to be aware of the existing body of research in this field so that they can make sound decisions regarding their practice and future research endeavours. This review aims to validate the existing knowledge base in this area by identifying and critically analysing research conducted in the area of neurological rehabilitation nursing during the decade 1988-1998 and by identifying any gaps and weaknesses that may be addressed by future research. Studies were included in the review if they examined an aspect of rehabilitation nursing, were concerned predominately with the neurological patient and were conducted in an in-patient setting. Research with a medical focus was not included and only research published in English was reviewed. Relevant research located examined the following areas: (1) the role of the rehabilitation nurse; (2) specific problems concerning the neurological rehabilitation patient; (3) specific nursing interventions; (4) rehabilitation nursing practice; (5) the delivery of rehabilitation programmes and team working; and (6) the family of the rehabilitation patient. The review concludes that research in this speciality remains limited both in quantity and quality. Most of the studies lack rigour and, because they were conducted at a single site, their generalizability to other clinical sites may be limited.

Brain Diseases↗
PubMed1997

Medical evidence concerning the suitability to succeed to the tenancy of a farm: the case of 'toad of toad hall'.

A hill farmer applied to succeed to the tenancy of his farm on the death of his mother who had leased the farm from his maternal aunt. As landlord, she opposed the application which was heard at an Agricultural Land Tribunal (ALT) convened under the provisions of the Agricultural Holdings Act, 1986. The ALT is a court of first instance. The applicant had to prove his eligibility and his suitability. His eligibility was not disputed. Both parties called medical evidence having a bearing on his physical health which was a matter relevant to the issue of suitability. It was in question because there were allegations of excessive drinking and alcohol-related offending. Finding no evidence that the applicant's drinking affected his farming ability, the Tribunal found in his favour and his application to succeed to the tenancy was granted.

Journal Article↗
PubMed1996

Television captions for hearing-impaired people: a study of key factors that affect reading performance.

Closed captions are broadcast with television programs for special-needs viewers such as hearing-impaired people. We examined how caption presentation rate, small amounts of induced dioptric blur, and English learned as a second language affect the reading performance of good readers. Thirty-two college graduates with normal hearing and vision, half of whom learned English as a second language, read television captions that consisted of white capital letters equivalent in size to 20/92 Snellen letters on a black background. Text was presented at rates of 55, 120, and 216 words/min. Lenses of 0, 0.5, 1.0, or 1.5 diopters (D) were worn over the person's best refractive correction. The fastest text rate and small amounts of blur significantly disrupted reading performance. People who learned English as a second language were hindered more by presentation rate than by dioptric blur. Surprisingly, people with refractive errors (even though they were optically corrected) were hindered less by induced blur than were people with normally clear vision.

Adult↗
PubMed1989

Television and vision: reading captions when vision is blurred.

Closed captions for television have become an important means of communication for hearing-impaired people. Yet, previous studies show that hearing-impaired people are very likely to have visual problems that may interfere with caption reading. In this study, the effect of reduced vision on caption reading is examined. Six hearing-impaired and 14 hearing subjects viewed segments of captioned movies on a 19-inch television screen at a distance of three meters. All of the subjects had normal vision. Their vision was blurred with plus lenses of five different strengths. The data show that caption reading is affected by relatively small amounts of blur. If a person has even a slight visual problem, the caption letters under normal television viewing conditions are too small for maximum reading performance.

Adult↗
PubMed1989

Speechreading with reduced vision: a problem of aging.

Presbycusis, a progressive loss of hearing in the elderly, causes people to become dependent on vision for understanding spoken language at the same time that visual disorders of aging compromise their vision. This combination of sensory losses disrupts the lives of millions of elderly Americans but remains virtually unstudied. We tested the ability of hearing and hearing-impaired adults to understand sentences spoken by an actress without sound. She was seen through various amounts of dioptric blur. Both young and elderly adults were relatively unaffected by as much as 4 D of blur. They quickly adjusted to new levels of blur, showing improved performance within a few minutes. Ocular pathologies altered the effect of blur on speechreading.

Adult↗