Abstract:
:To determine the magnitude and distribution of the forces, moments, and accelerations acting on an individual sitting in a wheelchair during three possible accidents occurring while negotiating a sidewalk curb, experimental trials were performed in a bioengineering laboratory using a 50th percentile Hybrid III dummy seated in a standard wheelchair. A ramp was designed with an adjustable incline to allow the wheelchair to reach the edge of a sidewalk height platform at the desired forward speed of 2.5 miles per hour (comfortable walking speed). The wheelchair velocity was monitored via an optical pickup. Three types of accidents were simulated: (1) a wheelchair hitting straight into a curb; (2) a wheelchair falling forward straight off a curb; (3) a wheelchair falling diagonally off a curb. Each experiment was repeated three times. Each run was photographed using high-speed cameras and videotaped from three perspectives: frontal, lateral, and overhead. The results were averaged and compared with published injury Assessment Values (IAV) and Head Injury Criteria (HIC). Of significance were the following results. In the straight into a curb experiments, the wheelchair remained upright and the dummy seated. Low magnitude forces (23-73 N), moments (1-12 Nm), and accelerations (0.2-1 G) were recorded at the neck and head. The HIC was low at 0.3. These results were of no clinical significance. In the straight off a curb experiments, properly attached footrests prevented the wheelchair from toppling over but did not prevent the dummy from falling off the wheelchair. Forces (187-4,176 N), moments (3-178 Nm), and accelerations (131-206 G) of great magnitude were recorded at the head and neck when the dummy fell off the wheelchair. These values were above IAV. The HIC was 960. In the diagonally off a curb experiments, both the wheelchair and the dummy fell sideways. High-magnitude forces (274-2,313 N), moments (4-110 Nm), and acceleration (140-236 G) were recorded in the head and neck regions. The HIC was 975. These values were close to IAV and may signify potential serious injuries.
journal_name
Am J Phys Med Rehabiljournal_title
American journal of physical medicine & rehabilitationauthors
Sosner J,Fast A,Begeman P,Sheu R,Kahan Bdoi
10.1097/00002060-199707000-00009subject
Has Abstractpub_date
1997-07-01 00:00:00pages
304-10issue
4eissn
0894-9115issn
1537-7385journal_volume
76pub_type
杂志文章abstract:OBJECTIVE:To determine whether individuals who have a spinal cord injury have neuromuscular and physiologic responses to a personalized exercise program during dynamic weight bearing (DWB). DESIGN:Four subjects with spinal cord injuries (T6, T5-6, C2-5, and C5) completed a 12-wk exercise program that included DWB. Sur...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0b013e31805b764b
更新日期:2007-06-01 00:00:00
abstract::Cognitive dysfunction among cancer survivors, commonly referred to as "chemobrain," has gained increased attention in the last decade. Cognitive dysfunction is now well recognized among patients with non-central nervous system cancers. It may be a consequence of the cancer, its treatment, or both. Other common problem...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章,评审
doi:10.1097/PHM.0b013e31820be463
更新日期:2011-05-01 00:00:00
abstract::A 17-item questionnaire was designed to assess the relative importance of various factors to physical medicine and rehabilitation (PM&R) training directors when ranking PM&R resident applicants during the National Resident Match. The questionnaire was sent to all PM&R residency training directors. The recipients were ...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-199406000-00002
更新日期:1994-06-01 00:00:00
abstract:OBJECTIVE:The study aimed to investigate the effect of an 8-wk structured strength training program on pain and sleep quality in patients with fibromyalgia. DESIGN:Fifty-two patients with fibromyalgia were evaluated; 31 submitted to strength training and 21 comprised the control group. The instruments used were the Fi...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0000000000000782
更新日期:2017-12-01 00:00:00
abstract::This study examined whether inability to perform adaptive locomotor tests predicts self-reported incident mobility disability. InCHIANTI study participants (N = 611; age, 50-85 yrs) who could walk 7 m at self-selected speed and who had no self-reported mobility disability at baseline were included. The ability to comp...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0b013e31827d634e
更新日期:2013-08-01 00:00:00
abstract::Visual deficits after cerebral injury are common. The variability in the types of injury sustained as well as their impact on function in the environment have produced multiple approaches at corrective intervention. To assess the effectiveness of these vision interventions, an extensive literature search was completed...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章,评审
doi:10.1097/PHM.0b013e318151f907
更新日期:2007-10-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to compare the effects of ethyl chloride and placebo sprays for reducing pain induced by needle electromyography and changes in parameters of the motor unit action potential during needle electromyography of the upper extremity. DESIGN:Sixty patients were randomized into the ethyl c...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1097/PHM.0000000000000106
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVE:To investigate the pathologic changes with a time sequence among patients with injured ligaments after complete mechanical unloading, based on a human anterior cruciate ligament (ACL) model. DESIGN:Pathologic examinations were done on remnants of completely ruptured ACLs at various times up to 14 wks after i...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0b013e31803215dc
更新日期:2007-04-01 00:00:00
abstract::The effect of the occupational environment on fibromyalgic patients has not been well studied. Individuals (321) from across the United States completed a questionnaire regarding effects of their current and past occupations on their fibromyalgia. Occupations with a high percentage of responders were general office wo...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-199404000-00007
更新日期:1994-04-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0b013e3182876197
更新日期:2013-08-01 00:00:00
abstract:OBJECTIVE:The so-called bone-derived growth factor, beta2-microglobulin, has a regulatory function in bone metabolism by stimulating osteoclast activity. We undertook this study because osteoclast activity is known to be enhanced in patients with immobilized stroke, suggesting that their beta2-microglobulin concentrati...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章,收录出版
doi:10.1097/00002060-200101000-00005
更新日期:2001-01-01 00:00:00
abstract::A hemiplegic patient with severe upper extremity spasticity 2 years after a cerebrovascular accident received a diagnostic median nerve block below the elbow with bupivacaine. He had been placed on Coumadin as prophylaxis for cerebrovascular arteriosclerotic disease, and prothrombin time was kept at twice the control ...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-198804000-00009
更新日期:1988-04-01 00:00:00
abstract:OBJECTIVE:In a large, population-based cohort of patients with spinal cord dysfunction, we assessed the relationship between self-reported physical function and hours of care received. DESIGN:Data were obtained by a cross-sectional, self-administered survey used to help establish a national registry of veterans with s...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-200109000-00007
更新日期:2001-09-01 00:00:00
abstract:OBJECTIVE:Poststroke depression (PSD) is an important complication that affects stroke rehabilitation. Abnormal cortical-subcortical connectivity may be associated with the development of PSD. However, few studies have focused on the emotional network of PSD in the temporal lobe lesions. The aim of is study was to inve...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0000000000001081
更新日期:2019-04-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1097/PHM.0000000000000100
更新日期:2014-09-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0000000000000008
更新日期:2014-02-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0000000000000991
更新日期:2018-12-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 临床试验,杂志文章
doi:10.1097/01.phm.0000228677.46845.b2
更新日期:2006-08-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
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更新日期:2004-03-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1097/PHM.0b013e31828cd5d3
更新日期:2013-05-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-199304000-00007
更新日期:1993-04-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0b013e31829232db
更新日期:2013-06-01 00:00:00
abstract::The ulnar antidromic sensory conduction study to the fifth digit is commonly performed in clinical electrodiagnosis. Several authors have published normal ranges for this study, but these published reports have been limited by generally small sample sizes. The purpose of this article is to present a large database of ...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-199911001-00012
更新日期:1999-11-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1097/01.phm.0000133435.61610.55
更新日期:2004-08-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-199601000-00014
更新日期:1996-01-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
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更新日期:2020-02-01 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/PHM.0000000000001439
更新日期:2020-04-03 00:00:00
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journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-200210000-00013
更新日期:2002-10-01 00:00:00
abstract::Niebuhr and Marion (Am J Phys Med Rehab 1990;69:96-101) recently presented a study that utilized healthy subjects who were able to control the amount of force exerted during submaximal grip strength efforts. Stokes (J Occup Med 1983;25:683-684) proposed that a true weakness of grip can be distinguished in the injured ...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:
更新日期:1991-12-01 00:00:00
abstract::The objective of this study was to determine the effect of two types of restraining belts (lap belt and a four-point belt) on an instrumented dummy during three situations: wheelchair hitting straight into curb (SIC); wheelchair falling straight off a curb (SOC); wheelchair falling diagonally off a curb (DOC). A fully...
journal_title:American journal of physical medicine & rehabilitation
pub_type: 杂志文章
doi:10.1097/00002060-199709000-00004
更新日期:1997-09-01 00:00:00