1. The elderly and endurance training;Pollack,1992
2. Endurance training and body composition in the elderly;Sidney;Am J Clin Nutr,1977
3. Influences of biological age and selection;Astrand,1992
4. Bortz WM IV Bortz WM II Aging and the disuse syndrome - effect of lifetime exercise Harris S Harris R Harris WS Optimization of human performance. Physical Activity, Aging and Sports, Vol. H.- P, Program and Policy Albany (NY) Center for the Study of Aging 44 50