Journal of Clinical and Diagnostic Research, ISSN - 0973 - 709X

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Original article / research
Year : 2017 | Month : March | Volume : 11 | Issue : 3 | Page : CC05 - CC09

Nerve Conduction Study on Sural Nerve among Nepalese Tailors Using Mechanical Sewing Machine

Prakash Kumar Yadav, Ram Lochan Yadav, Deepak Sharma, Dev Kumar Shah, Dilip Thakur, Nirmala Limbu, Md. Nazrul Islam

1. Assistant Professor, Department of Physiology, Chitwan Medical College, Nepal, Bharatpur, Chitwan, Nepal. 2. Assistant Professor, Department of Physiology, Chitwan Medical College, Nepal, Bharatpur, Chitwan, Nepal. 3. Assistant Professor, Department of Physiology, Chitwan Medical College, Nepal, Bharatpur, Chitwan, Nepal. 4. Assistant Professor, Department of Physiology, Chitwan Medical College, Nepal, Bharatpur, Chitwan, Nepal. 5. Additional Professor, Department of Physiology, BP Koirala Institute of Health Sciences, Dharan, Sunsari, Nepal. 6. Additional Professor, Department of Physiology, BP Koirala Institute of Health Sciences, Dharan, Sunsari, Nepal. 7. Professor, Department of Physiology, Chitwan Medical College, Nepal, Bharatpur, Chitwan, Nepal.

Correspondence Address :
Dr. Prakash Kumar Yadav,
Assistant Professor, Department of Physiology, Chitwan Medical College, Bharatpur-44200, Chitwan, Nepal.
E-mail: prakashyadav364@yahoo.com

Abstract

Introduction: The use of new technologies and innovations are out of access for people living in a developing country like Nepal. The mechanical sewing machine is still in existence at a large scale and dominant all over the country. Tailoring is one of the major occupations adopted by skilled people with lower socioeconomic status and education level. Sural nerves of both right and left legs are exposed to strenuous and chronic stress exerted by chronic paddling of mechanical sewing machine with legs.

Aim: To evaluate the influence of chronic and strenuous paddling on right and left sural nerves.

Materials and Methods: The study recruited 30 healthy male tailors with median age {34(31-37.25)} years (study group), and, 30 healthy male volunteers with age {34(32-36.25)} years (control group). Anthropometric measurements (age, height, weight, BMI and length of both right and left legs) as well as cardio respiratory measurements [Systolic Blood Pressure (SBP), Dystolic Blood Pressure (DBP), Pules Rate (PR) and Respiratory Rate (RR)] were recorded for each subject. Standard nerve conduction techniques using constant measured distances were applied to evaluate sural nerve (sensory) in both legs of each individual. The differences in variables between the study and control groups were tested using Student’s t-test for parametric variables and Mann-Whitney U test for nonparametric variables. A p-value of = 0.05 was considered significant.

Results: Age, height, weight, body mass index and leg length were not significantly different between tailors and control groups. Cardio respiratory measurements (SBP, DBP, PR and RR) were also not significantly altered between both the groups. The sensory nerve conduction velocities (m/s) of the right {44.23(42.72-47.83) vs 50(46- 54)} and left sural nerves {45.97±5.86 vs 50.67±6.59} m/s were found significantly reduced in tailors in comparison to control group. Similarly amplitudes (µv) of right sural (20.75±5.42 vs 24.10±5.45) and left sural nerves {18.2(12.43-21.8) vs 32.0(26.5-35.25)} were significantly less in tailors in comparison to control group whereas, latencies (ms) of right sural {2.6(2.2-2.7) vs 2.0(2.0-2.250} and left sural nerve {2.4(2.07-2.72) vs 2.0(2.0-2.0)} were found significantly high in tailors as compared with control group.

Conclusion: Operating mechanical sewing machine by paddling chronically and arduously could have attributed to abnormal nerve conduction study parameters due to vibration effect of the machine on right and left sural nerves. The results of present study follow the trend towards presymptomatic or asymptomatic neuropathy similar to subclinical neuropathy.

Keywords

Chronic paddling, Subclinical neuropathy, Tailouring profession

How to cite this article :

Prakash Kumar Yadav, Ram Lochan Yadav, Deepak Sharma, Dev Kumar Shah, Dilip Thakur, Nirmala Limbu, et al.. NERVE CONDUCTION STUDY ON SURAL NERVE AMONG NEPALESE TAILORS USING MECHANICAL SEWING MACHINE. Journal of Clinical and Diagnostic Research [serial online] 2017 March [cited: 2017 Mar 24 ]; 11:CC05-CC09. Available from
http://www.jcdr.net/back_issues.asp?issn=0973-709x&year=2017&month=March&volume=11&issue=3&page=CC05-CC09&id=9399

DOI and Others

DOI: 10.7860/JCDR/2017/22814.9399

Date of Submission: Jul 17, 2016
Date of Peer Review: Aug 01, 2016
Date of Acceptance: Sep 17, 2016
Date of Publishing: Mar 01, 2017

Financial OR OTHER COMPETING INTERESTS: None.

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