1. 1. 2. 3. 4. 5. 6. 7. 8. © Modelling Energy Expenditure During Cycling Al-Haboubi, MH TAYLOR FRANCIS LTD, ERGONOMICS; pp: 416-427; Vol: 42 King Fahd University of Petroleum & Minerals http://www.kfupm.edu.sa Summary Nowadays, there is a strong trend to use cycling as a means of weight control or weight reduction by many weight-conscious people. These people are interested in knowing their caloric consumption while pedalling at some speed. Accurate measurements are possible through a laborious process of measuring oxygen consumption and carbon dioxide volume exhaled by using expensive equipment which requires skilled operators. However, accurate values are not crucial to the knowledge or health of weight-concerned people and estimated values should suffice this purpose. The estimation methods available in the literature contain some shortcomings. This paper presents a systematic methodology to estimate the caloric consumption while riding at submaximal levels, since near maximal levels are practiced by competitive cyclists only. The paper starts by enumerating and discussing the possible factors influencing the caloric uptake through a literature review. The most influential factors are used to develop a mathematical model, based on experimental data, by using two approaches, i.e. multiple linear regression and linear programming. It is believed that the latter model fits the data better. Finally, an example is provided to show the utilization of the models. References: ADAMS WC, 1967, J APPL PHYSIOL, V22, P539 ALHABOUBI MH, 1986, THESIS OREGON STATE ALHABOUBI MH, 1997, INT J IND ERGONOM, V17, P379 ASTRAND I, 1960, ACTA PHYSIOLOGICA S, V49, P169 ASTRAND I, 1960, ACTA PHYSL SCAND, V50, P294 ASTRAND P, 1953, ARBEITSPHYSIOLOGIE, V15, P23 BANISTER EW, 1967, INT Z ANGEW PHYSL EI, V24, P284 BEVEGARD S, 1966, J APPL PHYSIOL, V21, P37 Copyright: King Fahd University of Petroleum & Minerals; http://www.kfupm.edu.sa

2. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. © BOBBERT AC, 1960, J APPL PHYSIOL, V15, P1007 BROUHA L, 1961, J APPL PHYSIOL, V16, P133 CONSOLAZIO CF, 1963, J APPL PHYSIOL, V18, P65 DAVIES CTM, 1971, ERGONOMICS, V14, P257 DAVIS RR, 1981, J BIOMECH, V14, P857 DEMPSEY JA, 1966, J APPL PHYSIOL, V21, P1815 DICKINSON S, 1929, J PHYSIOL-LONDON, V67, P242 FARIA I, 1982, J SPORT MED PHYS FIT, V22, P295 FARIA IE, 1984, SPORTS MED, V1, P187 FOX E, 1981, PHYSL BASIS PHYSICAL GAESSER GA, 1975, J APPL PHYSIOL, V38, P1132 GARRY RC, 1931, J PHYSL, V71, P425 HAGBERG J, 1989, BICYCLING, V5, P100 HINES WW, 1990, PROBABILITY STAT ENG HORI S, 1978, ENV STRESS INDIVIDUA, P39 KLAUSEN K, 1967, J APPL PHYSIOL, V22, P292 LAFORTUNE MA, 1983, BIOMECHANICS B, V8, P928 LUHTANEN P, 1987, ACTA PHYSIOL SCAND, V131, P331 MALHOTRA MS, 1962, J APPL PHYSIOL, V17, P433 MCCOLE SD, 1990, J APPL PHYSIOL, V68, P748 NORDEENSNYDER KS, 1977, MED SCI SPORTS, V9, P113 PANDOLF KB, 1973, MED SCI SPORTS, V5, P132 SENGUPTA J, 1977, ERGONOMICS, V20, P33 SLOANE EA, 1980, NEW COMPLETE BOOK BI STROMME SB, 1977, J APPL PHYSIOL, V42, P833 SWAIN DP, 1987, J APPL PHYSIOL, V62, P668 WITT FR, 1983, BICYCLING SCI For pre-prints please write to: abstracts@kfupm.edu.sa Copyright: King Fahd University of Petroleum & Minerals; http://www.kfupm.edu.sa