ISSN:1040-8800    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

ABSTRACTThe purpose of this study was to evaluate changes in floor reaction forces over the prosthesis during stance and gait throughout prosthetic training. Fifteen transfemoral amputation patients (mean age: 62 ± 13 years) were evaluated during prosthetic training. As the patients were standing and walking in parallel bars at free speed, ground reaction forces were measured with a force plate and gait velocity was measured using two photocells. Pretraining and posttraining changes of average peak forces were evaluated by pairedt‐tests (p < 0.05). In the training period, weightbearing over the prosthesis during standing increased (p < 0.05) and significant decreases (p < 0.05) were observed in the nonamputated limb. From initial to discharge evaluation, gait velocity and vertical ground reaction forces increased significantly. Changes in vertical forces were minimal (< 5%) for three subjects, and four subjects had lower values at the end of training. No significant changes could be detected in the anteroposterior and mediolateral ground reaction forces.

ISSN:1040-8800    

出版商:OVID    

年代:2000

数据来源: OVID

ISSN:1040-8800    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

ABSTRACTCardiovascular disease, which remains the number one cause of death in the United States, is particularly prevalent in amputees and in other groups such as men, the elderly, and African Americans. The objective of this study was to identify the underlying risk factors of cardiovascular disease in an amputee population and to determine if those risk factors differ between the vascular and nonvascular amputee groups. In addition, the amputee risk profile was compared with the general population. A survey consisting of previously validated cardiovascular disease risk factor questions was sent to 39 support groups across the United States. From the data of 170 respondents, four highly prevalent risk factors were identified in the amputee profile; these factors included high cholesterol, hypertension, diabetes, and inactivity. The vascular amputees were significantly older than the nonvascular amputees and had an increased occurrence of diabetes (71% versus 13%; p = 0.001), an increased overweight prevalence (71% versus 29%; p = 0.019), and a decreased number of days per week of alcohol consumption (0.64 versus 1.24; p = 0.018). Additionally, it appeared that three risk factors were elevated above the United States population norms for the following categories; these factors included cholesterol, hypertension, and diabetes. The results of this study indicate that special attention should be focused on the modification of risk factors emphasizing high cholesterol, hypertension, diabetes, and inactivity. The high occurrence of reported risk factors could explain the increased rate of death as a result of cardiovascular disease in the amputee population.

ISSN:1040-8800    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

ABSTRACTThis article describes six transhumeral and seven transradial prostheses that were successfully fit to patients using electrodes installed in roll‐on suspension sleeves. This design maintained consistent electrode contact for all patients, especially those who had volume changes or who experienced difficulty with the traditional suspension methods. To provide improved suspension and electrode contact, metal electrodes and modified wiring systems were developed and tested along with techniques for installing electrodes in roll‐on sleeves. This series of patients demonstrated that a roll‐on sleeve is an excellent way to achieve superior suspension and greater range of motion.

ISSN:1040-8800    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

ABSTRACTThe purpose of this study was to determine the effect of four different prosthetic foot designs on the pattern of plantar pressure in the sound limb of unilateral transtibial diabetic amputees during walking. Twelve male community ambulators with a mean age of 56.3 years and a history of diabetes served as subjects. Pressure data were collected using the EMED Pedar in‐shoe measurement system as subjects walked with the following four prosthetic feet: 1) Seattle Lite, 2) molded solid ankle, cushioned heel (SACH), 3) Sure‐Flex III, and 4) multi‐axial Greissinger. The measured results indicated that, except for the heel region, the type of prosthetic foot used did not significantly affect the peak pressures acting on the plantar surface of the intact limb. None of the prosthetic feet tested had a significant effect on reducing the pressuretime integrals for any of the seven plantar regions studied.

ISSN:1040-8800    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

ABSTRACTThe primary goal of this study was to test the feasibility of using selective laser sintering (SLS) to fabricate a functional transtibial prosthetic socket. Prosthetic socket computer‐assisted design and computer‐assisted manufacturing techniques were combined with SLS technology to produce a sophisticated, monolithic, transtibial prosthetic socket. The socket combined a rigid outer shell with a variably compliant inner shell and incorporated a fitting for a pylon directly into it. The socket was manufactured for a 65‐year‐old transtibial amputee using a socket shape identical to his current definitive socket. A prosthesis was then assembled using the same foot as the subject's definitive prosthesis. A comparison of socket performance suggested improved comfort, greater step symmetry, and similar lower extremity joint function.

ISSN:1040-8800    

出版商:OVID    

年代:2000

数据来源: OVID