Objective: To evaluate the effects which Back of School (BS) has on labour performance perception, physical condition and rachidial health of some workers from the University of Almer\u00eda when attending the programme. Methodology: A three months physical exercise programme was developed with 56 workers from the University of Almer\u00eda (n=56), most of them with rachis pains, forming the BS group. This programme consisted of some stretching (active and passive), strength and posture awareness exercises practised during 30 minutes 2 days a week. When this period finished, the results were evaluated by answering to a given questionnaire. Results: It has been proved that those who participated in the Back of School study from the University of Almer\u00eda during these three months have improved: Their perception in the general physical condition (81%), their muscular invigoration (81%), their autonomy doing the exercises (95%). It has also influenced them positively in their posture hygiene habits (76%), their physical aptitudes when doing their work (81%), their labour performance (76%) and psychologically, when facing the working day (81%). Workers comment to their partners that it has been a great and a very useful experience for them and they even remark that they would come back (100%). Conclusions: The Back of School from the University of Almer\u00eda has contributed to the improvement of the labour performance perception and physical condition of the workers who participated in this programme and, definitely, it has also been beneficial to them in a healthy way.<\/p>\n\n