The whole of trading enterprises with many average/big saling-centres forms what is today commonly known as Large Organized Distribution (LOD). The main risks regarding the people working in the LOD are: MM, repetitive motion of upper limbs, fixed postures, unfavourable microclimatic conditions and, moreover, the probability of labour accidents. In order to analyse the risks due to MM and false postures, we have used the ergonomic software "Classic Jack" distributed by EAI-UGS, which has been very helpful to find out the most dangerous labour operations (e.g. charging and discharging of goods, fragmentation and reassembling of manufactures, goods-shelving, branding and labelling). We have, then, suggested a programme of health surveillance that includes a medical examination, eventual x-ray exams, specialized examination and a posturologic visit. This posturologic visit has got an olistic diagnostics approach, whose research after the causes that could be responsible for the checked diseases concerns not only the damaged area, but also other parts of the body (ocular system, auditive system, podalic system, masticatory apparatus).