TICK BITES

In interpreting these results, Benestad states that though the maximal oxygen uptake remained unaffected by the training programme, this does not necessarily mean that the trainability of old men is completely lost. The duration and intensity of training were as much as was considered advisable by their medical supervisor, but this did not necessarily represent the upper limit of muscular activity at this age, or mean that they could not have tolerated a greater training load. Further, it has been shown that in young men a period of five to six weeks' hard muscular work has only a small elIect on the oxygen uptake capacity. Benestad concludes that this result indicates that one cannot expect to increase the aerobic capacity of old men by undertaking physical training.