The topic of this work – „The physical therapy management of a patient with low back pain in sanatorium „Lietuva“. The study was caried out in sanatorium „Lietuva“ Druskininkai from 2003 to 2004. 60 participants took part in the study. The age of participants from 18 to 74. First group (9 men and 21 women) with low back pain to continue exercing after treatment at home and second control group (5 men and 25 women) noexercing at home. The course of treatment consisted 14 day 30 – 45 min two time by day 6 day by weak. The purpose of study carried out by us was determine the change of the pain and the functioal state of the back muscles in the course of these procedures. Pain intensity (visual analog skale) in the active rehabilitation group (p<0,05) than in the passive control treatmen group after treatment was 3,07 ± 0,14 points. The abdominal muscle strangeht and abdominal and lumbar muscle endurance change the exercise time in both groups but in the active exercise group significanty more (p<0,05) after 14 day treatment. The spine muscle flexibility was still greater in both groups after programmed exercise. The study show that the patient must to do actine exercise at home because the pain did not disappear after therapy.