This study is an experimental research group. Compare before and after treatment The purpose is to study the effects of exercise programs with the promptings. To increase the strength of the back muscles and reduce muscle pain in the lower back. The sample group consisted of employees laundry.The University Phitsanulok female sample size of 40 set by the formula test the hypothesis proportion. Segmentation by way of private placement to the experimental group and the control group of 20, which groups will get the program to exercise after a period of eight weeks, with the prompting week one time and knowledge about pain. Lower Back The control group received about lower back pain alone. Comparing the average scores between groups by using Mann-Whitney U test and a group by using Wilcoxon test.