[Somatical performance and environment in the elderly (author's transl)].

The arrangement with the envirement requires somatical performance of men. We developed a mathematical model by recording data of performance. This model shows a decreasing capacity of performance correlated with age. The real meassured data are vastly different to theoretical conception. In difference to the assumption equal increasing load in elder and younger people leads to equal acceleration of pulse rate we are able to demonstrate decreasing physical strength is clutched to shortage of weight. The loss of performance in elderly men requires a restriction either of social contacts or of supply and consumption. For preserve of physical strength there is required to treat malnutrition and especially to promote vigour, substance an strength of muscles.