A sample of 301 full time farmers aged between 20 and 70 years and able to read and understand the local dialect Hindi, were included in the present study [9,10].
Part-time farmers who were also involved in jobs other than farming were excluded from the study.
Farmers who were diabetic or had any known neurological, psychiatric or cardiovascular problems were also excluded.
Care was also taken not to include in the study those farmers who were known to have spinal fracture resulting from tumors, infection, or any major trauma to the spine