1. Flexibility in the aging adult;Adrian,1981
2. Prevention of involutional bone loss by exercise;Aloia;Ann Intern Med,1978
3. Position statement on the recommended quantity and quality of exercise for developing and maintaining fitness in healthy adults;Med Sci Sports,1978
4. Aerobic work capacity in men and women;Åstrand;Acta Physiol Scand,1960
5. Reduction in maximal oxygen uptake with age;Åstrand;J Appl Physiol,1973