As most farmers already have a history of LBP,the main risk factor is recurrence and chronic pain.5
For example 40% of farmers have experienced LBP every day for a week or more in the past year and LBP is a common recurrent condition among patients.Therefore, in an effort to stop the progression of disease oriented-deterioration a secondary prevention
program, is likely to be appropriate for LBP prevention among farmers. Programs on occupational safety and
health in agriculture should include working posture and environmental modification. Moreover, the World Health Organization (WHO) suggests including in guidelines of working posture modification, the proper lifting of heavy objects. This is standing close
to the object, bending at the knees, keeping the back straight during lifting, lifting the load with leg muscles,
and with the object close to the body.Laboratory studies have shown that this lifting object guideline
could decrease prevalence of LBP in workers. Educational intervention, comprised of modification of working posture and SBE based on behavioral theory, could improve LBP prevention behaviors and
back muscle capacity among workers. Regarding factors associated with LBP prevention
behaviors among Thai farmers, it was found that time barrier was an important variable for SBE.3 However,
SBE with a stretching technique and holding the back in a straight position for seconds during exercise
significantly promotes BME and protects the back from injury during exercise.Also, recent systematic
reviews concluded that an average SBE of 10 minutes
per day has contributed to a significant improvement in primary outcome measures. Furthermore, SBE of
6 minutes once daily, three and four times a week for 6 weeks, could improve BME by week 3.16, 29 Moreover,
LBP prevention program in workers could strengthen back muscles at week 12.8However, there is no study
investigating the effect of LBP prevention program on BME among informal workers. Thus, it is interesting
to examine whether short-time SBE interventions can