The study is a semi experimental research groups to compare before and after an experiment. To study the effect of the muscles after the alert. To increase muscle strength and decrease muscle pain lower back. A sample is a group of professionals get independent laundry cycle, naresuan University. Female, 40 people are scaling the test sample by using the formula sommutithan up proportions. Grouped by specific experimental group and the control group is the Group of people who are 20 experimental group received the muscles after a period of 8 weeks to once a week and encourage knowledge about lower back pain. The control group received knowledge about lower back pain alone. Compare average score among the group using the Mann-Whitney U test and statistics within the group using the Wilcoxon test statistic.
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