The purpose of the study is to investigate the effectiveness of Fustra® exercise program in relieving recurrent pain in the neck or/and back, and thus improve quality of life in female and male office workers. The hypothesis is that neuromuscular exercise will improve control of posture and movement, neck shoulder and trunk flexibility, trunk muscular endurance and leg strength, and thus decrease intensity of pain by 30% compared to non-exercise group. In addition, financial feasibility of the exercise program and effects of training on quality of life and perceived work ability are studied.