Performance Evaluation of BK Amputees Through Graded Load Carrying Tests
TL;DR: A method of performance evaluation through graded load carrying tests which makes it possible to set up regression equations which can be used in routine clinical practice for prediction of the performance of below-knee amputees.
Abstract: The ergonomic approach to performance evaluation in orthopaedic rehabilitation presents problems because of the cumbersome and time-consuming measurement and test procedures involved. This paper describes a method of performance evaluation through graded load carrying tests which makes it possible to set up regression equations which can be used in routine clinical practice for prediction of the performance of below-knee amputees.
Citations
More filters
01 Jan 1994
TL;DR: This chapter discusses the energy expenditure during ambulation, which is in controlling forward movement during deceleration toward the end of swing phase and for shock absorption at heel strike.
Abstract: Publisher Summary This chapter discusses the energy expenditure during ambulation During gait, two main events occur in which energy is consumed: one is in controlling forward movement during deceleration toward the end of swing phase and for shock absorption at heel strike, and the other is in propulsion during push off when the center of gravity is propelled up and forward Ironically, more energy is expended to control forward movement than to propel forward The fine articulations characteristic of the intact human leg result in a normal gait pattern If movement occurs only at either end, as in a stick, then compass gait results, which is marked by abrupt acceleration and deceleration, and unnecessary vertical excursion of the center of gravity by about 3 inches During activity, there is interplay between aerobic and anaerobic mechanisms In aerobic oxidation—Krebs' citric acid cycle—carbohydrates and fats provide the primary fuels These substrates are oxidized through a series of reactions leading to the production of adenosine triphosphate Oxygen is the final hydrogen acceptor, and water is formed
29 citations
TL;DR: An attempt was made to combine both the techniques in relation to a mixed handicapped population composed of 10 test subjects as well as a matching control group to indicate how the biomechanical measurements alone can throw sufficient light on the subject's locomotor status.
Abstract: The existing locomotion evaluation techniques are based either on bioenergetic measurements or on biomechanical principles and procedures. While the former basis has been preferred by a few, published literature in this field has contained more information on the latter. No significant work combining both the approaches in a single measurement system is known so far. This paper reports an investigation where an attempt was made to combine both the techniques in relation to a mixed handicapped population composed of 10 test subjects as well as a matching control group. It has been found from the present investigation that the combined application of the above two types of measurements might lead to more useful information about the performance level of the subjects in locomotion. Further, the statistical analysis of the experimental data revealed the existance of a linear correlationship among the parameters used for such performance evaluation. Finally, the study findings have been discussed to indicate how the biomechanical measurements alone can throw sufficient light on the subject's locomotor status.
1 citations
References
More filters
TL;DR: It was concluded that although the degree of rehabilitation was satisfactory in the amputees, there is a definite necessity for further studies on patellar tendon-bearing prostheses.
Abstract: A study was undertaken to evaluate the performance of an amputee-prosthesis system in a group of ten below-knee amputees fitted with patellar tendon-bearing prostheses. The subjects had fulfilled the necessary clinical and prosthetic criteria for their discharge from the care of the Rehabilitation Centre to resume their domestic and occupational activities. Pulmonary ventilation, oxygen consumption, energy expenditure and peak heart rate were measured during the rehabilitees' performance of four types of standard physical activities and one standard exercise tolerance test. Similar data were collected from a group of sixteen normal subjects while performing the same series of tests. Statistical tests for difference between the two groups of subjects showed significant differences in the above parameters for the walking on the level and stair climbing activities. From the data it was concluded that although the degree of rehabilitation was satisfactory in the amputees, there is a definite necessity for inc...
24 citations
TL;DR: It has been shown that the amputees fitted with PTB prostheses can take up, without any undue extra effort and metabolic cost, industrial occupations of the moderately heavy kind.
Abstract: A below-knee amputee is generally known to achieve a close-to-normal performance level, with the patellar-tendon-bearing method of stump fitting. This was confirmed by an ergonomic investigation on ten below-knee amputees, fitted with PTB prostheses. The test group subjects were given two static tests, two dynamic tests and one exercise tolerance test, during which their oxygen consumptions, pulmonary ventilations, energy expenditures and peak heart rates were measured. The performance of the test subjects were compared with that of a control group consisting of sixteen normal, healthy, individuals. The percentage increases in the values of the biomechanical parameters of the test subjects, over those of the control group, were found to be justified and thus natural to the below-knee amputee-PTB prosthesis system. The ergonomic study has not yielded information regarding the biomechanical efficacy of the PTB prosthesis, but it has also shown that the amputees fitted with such prostheses can take up, without any undue extra effort and metabolic cost, industrial occupations of the moderately heavy kind.
9 citations