1. Barnes, K. R. and Kilding, A. E. (2015) Running economy: measurement, norms, and determining factors. Sports Med. Open, 1: 8.
2. Daniels, J., Oldridge, N., Nagle, F., and White, B. (1978) Differences and changes in VO2 among young runners 10 to 18 years of age. Med. Sci. Sports, 10: 200-203.
3. Daniels, J. T. (1985) A physiologist's view of running economy. Med. Sci. Sports Exerc., 17: 332-338.
4. Geithner, C. A., Thomis, M. A., Eynde, B. V., Maes, H. H., Loos, R. J., Peeters, M., Claessens A. L., Vlietinck, R., Malina, R. M., and Beunen, G. P. (2004). Growth in peak aerobic power during adolescence. Med. Sci. Sports Exerc., 36: 1616-1624.
5. Kobayashi, K., Kitamura, K., Miura, M., Sodeyama, H., Murase, Y., Miyashita, M., and Matsui, H. (1978) Aerobic power as related to body growth and training in Japanese boys: a longitudinal study. J. Appl. Physiol., 44: 666-672.