PubMed Health⌕ Search

Biomedical subjects

D N Tibarewala

Publications and source records attributed to D N Tibarewala.

12 recordsLinked to original sources
PubMed1982

Pattern recognition in tachographic gait records of normal and lower extremity handicapped human subjects.

The electromechanical behaviour of the tachographic gait recording system developed by earlier research scientists was analysed. Some alterations were incorporated and the resulting modified system was used to record the gait of 25 normal, healthy, able-bodied adult males with sedentary habits, and 67 subjects having different types of lower extremity handicap. Some of the findings obtained from analysis of these gait records are reported in this paper. Basic differences in the pattern associated with different types of subjects have been explored through analysis of basic gait characteristics e.g. cadence, consistency etc., whereas the existence of specific patterns for each group of subjects has been recognised by applying the multi-variate statistical tool of discriminant analysis.

Adolescent↗
PubMed1982

Static weight-bearing patterns of below-knee amputees using patellar-tendon-bearing prostheses.

While the weight-bearing patterns under human feet during dynamic conditions (i.e. walking or running) have been investigated by many scientists, only a few studies have been reported on such patterns during erect standing posture. This paper describes an investigation where a system composed of strain gauge load cells has been employed to study the static weight-bearing patterns of a group fo below-knee amputees using patellar-tendon-bearing prostheses, and of a matching group of normal persons. Experimental data were analysed to recognize the static weight-bearing patterns; it has been found that specific patterns exist for normal person as well as for healthy and affected sides of the amputees. It has been indicated how these findings could be used to define a performance index proportional to stance disability.

Adult↗
PubMed1980

An improved approach for performance evaluation in lower extremity involvement.

An investigation has been carried out to confirm the relationship between heart rate and energy expenditure in case of normal and lower extremity handicapped persons and, to explore the difference, if any, between both the relationships. Studies have been made on 8 below-knee amputees fitted with patellar-tendon-bearing (PTB) prostheses and 10 normal subjects, taken as two separate groups and also, on 1 below-knee amputee and 1 control subject as individuals. It has been found that a significant difference exists between both the relationships and hence, separate heart rate-energy expenditure relationship is needed to evaluate the performance of lower extremity handicapped in clinics and in industry without going into the cumbersome, clumsy and time consuming methods of estimating physiological cost.

Amputees↗
PubMed1980

An integrated biomechanical-bioenergetic technique for evaluation of human locomotion.

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.

Adult↗
PubMed1979

Use of a gait abnormality index for locomotion efficiency evaluation.

A number of gait curves obtained from 16 healthy, able-bodied adult males were selected as "normal" gait curves and thereafter analysed with a view to defining a "Gait Abnormality Index", which may be used as quantitative measure of human performance in locomotion. Similar studies on five groups of handicapped subjects, each group having 8 to 10 subjects with a particular type of handicap, indicate the suitability of this index for application in locomotion efficiency evaluation.

Adult↗