- Bar‑Or, O. Arm ergometry vs. treadmill running and bicycle riding in men with different conditioning levels. In: Hanson, G. and H. Mellerowicz (eds) 3rd Internationales Seminar fur Ergometrie. Berlin: Institut fur Leistungsmedizin, 1972, pp. 123‑128.
- Bar-Or, O. A comparison of responses to exercise and lung functions of Israeli Arab and Jewish 12-14 year-old boys. In: Proceedings 4th International Symposium on Pediatric Work Physiology. Natanya: Wingate Institute, 1973, pp. 59-68.
- Bar-Or, O. and L.D. Zwiren. Physiological effects of increased frequency of physical education classes and of endurance conditioning on 9-10 year old girls and boys. In: Proceedings 4th International Symposium on Pediatric Work Physiology. Natanya: Wingate Institute, 1973, pp. 183-193.
- Rode, A., O. Bar-Or, and R.J. Shephard. Cardiac output and oxygen conductance. A comparison of the Canadian Eskimo with the city dweller. In: Proceedings 4th International Symposium on Pediatric Work Physiology. Natanya: Wingate Institute, 1973, pp. 45-48.
- Ayalon, A., O. Inbar, and O. Bar‑Or. Relationships among measurements of explosive strength and anaerobic power. In: Nelson, R.C. and C.A. Morehouse (eds.) International Series on Sports Sciences. Vol.I, Biomechanics IV. Baltimore: University Park Press, 1974, pp. 527‑532.
- Weingarten, G. and O. Bar‑Or. The effect of frequency and content of physical education classes upon sociometric status in 9 and 10 year old girls and boys. (Rumanian). In: Epuran, M. (ed.) Phisiologia Si Sportal Contemporan. Bukarest: Stadiom, 1974, pp. 340‑346.
- Bar-Or, O. The physiological aspects of strenuous activity in old age. (Hebrew). In: Brand-Auraban, A. (ed.) Geriatrics-Gerontology. Jerusalem: The Israel Medical Association – Jerusalem Academy of Medicine, 1974, pp. 124-127.
- Bar-Or, O. Lesser known physiological and perceptual indices for endurance in advanced ages. In: Proceedings of a Satellite Seminar on Physical Exercise and Activity for the Aging. 10th International Congress of Gerontology. Natanya: Wingate Institute, 1975, pp. 175-184.
- Bar-Or, O., O. Inbar, and R. Dotan. Proficiency, speed and endurance test for the wheelchair-bound. In: Simri, U. (ed.) Motor Learning in Physical Education and Sports. Natanya: Wingate Institute, 1976, pp. 310-318.
- Bar‑Or, O. Age‑related changes in exercise perception. In: Borg, G. (ed.) Physical Work and Effort. Stockholm: Pergamon Press, 1977, pp. 255‑266.
- Bar‑Or, O. and O. Inbar. Relationships between perceptual and physiological changes during heat acclimization in 8‑10 year old boys. In: Shephard, R.J. and H. Lavallee (eds.) Frontiers of Activity and Child Health. Quebec: Pelican, 1977, pp. 205‑214.
- Inbar, O. and O. Bar‑Or. Relationship of anaerobic and aerobic arm and leg capacities to swimming performance of 8‑12 year old children. In: Shephard, R.J. and H. Lavallee (eds.) Frontiers of Activity and Child Health. Quebec: Pelican, 1977, pp. 283‑292.
- Ben‑Ari, E., O. Inbar, and O. Bar‑Or. The anaerobic capacity and maximal anaerobic power of 30‑40 year old men and women. In: Proceedings of the 5th International Symposium of Kinanthropometry and Ergometry. Quebec: 1978, pp. 427‑433.
- Bar‑Or, O., L.D. Zwiren, and R. Dotan. Correlations among aerobic fitness tests and VO max in men who vary in aerobic capacity. In: Shephard, R.J., (ed.) Physical Fitness Assessment ‑ Practice and Application. Springfield: Charles C. Thomas, 1978, pp. 356‑362.
- Bar‑Or, O. and O. Inbar. Relationships among anaerobic capacity, sprint and middle distance running of school children. In: Shephard, R.J. and H. Lavallee (eds) Physical Fitness Assessment. Springfield, Ill.: Charles C. Thomas, 1978, pp. 142‑147.
- Inbar, O. and O. Bar-Or. Changes in arm and leg anaerobic performance in laboratory and field tests, following physical training. In: Simri, U. (ed.) Proceedings of the International Seminar on Art and Science in Coaching. Natanya: Wingate Institute, 1979, pp. 38-48.
- Dotan, R., U. Goldbourt, and O. Bar‑Or. Kinanthropometric parameters as predictors for the success of young female and male gymnasts. In: Ostyn, M., G. Beunen, and J. Simons (eds.) Kinanthropometry ll, Int’l Series on Sport Sciences, Vol 9. Baltimore: University Park Press, 1980, pp. 212 ‑213.
- Grodjinovsky, A., O. Bar‑Or, R. Dotan, and O. Inbar. Training effect in children on the anaerobic performance as measured by the Wingate Anaerobic Test. In: Berg, K. and B.O. Eriksson (eds.) Children and Exercise lX. Baltimore: University Park Press, 1980, pp. 139‑145.
- Bar‑Or, O. Physiologische Gesetzmassigkeiten sportlicher Aktivitat beim Kind. In: Howald, H. and E. Hahn (eds.) Kinder im Leistungssport. Basel: Birkhauser Verlag, 1982, pp. 18‑30.
- Bar‑Or, O. Climatic conditions and their effect on exercise‑induced asthma ‑ a review. In: Oseid, S., and A.M. Edwards (eds.) The Asthmatic Child in Play and Sports. London: Pitman, 1983, pp. 61‑73.
- Jacobs, I., O. Bar‑Or, R. Dotan, J.K. Karlsson, and P. Tesch. Changes in muscle ATP, CP, glycogen and lactate after performance of the Wingate Anaerobic Test. In: Knuttgen, H.G., J.A. Vogel, and J. Poortmans (eds.) Biochemistry of Exercise. Champaign, Illinois: Human Kinetics Publishers, 1983, pp. 234‑238.
- Bar‑Or, O. The growth and development of children’s response to exercise. In: Ilmarinen, J. & I. Valimaki (eds.) Children and Sport. Berlin: Springer Verlag, 1984, pp. 3-17.
- Grodjinovsky, A. and O. Bar‑Or. Influence of added physical education hours upon anaerobic capacity, adiposity, and grip strength in 12‑13‑year‑old children enrolled in a sports class. In: Ilmarinen, J., and I. Valimaki (eds.) Children and Sport. Berlin: Springer Verlag, 1984, pp. 162‑169.
- Bar‑Or, O. Some notes on physiological and medical considerations for exercise and training of children. In: Binkhorst, R.A., H.C.G. Kemper, and W.H.M. Saris (eds.) Children and Exercise Xl. Champaign, Illinois: Human Kinetics, 1985, pp. 346‑353.
- Bar-Or, O. The oxygen cost of children’s movement in health and disease. In: Russo, P. and L.G. Gass (eds.). Exercise, Nutrition and Performance. 1985, pp. 97-104.
- Inbar, O., R. Dotan, O. Bar-Or, and B. Gutin. Passive versus active exposures to dry heat as methods of heat acclimatization in young children. In: Binkhorst, R.A., H.C.G. Kemper, and W.H.M. Saris (eds.) Children and Exercise XI. Champaign, Ill.: Human Kinetics, 1985, pp. 319-340.
- Bar‑Or, O. Special Considerations of Exercise in Children and Adolescents. Chapter 7. In: Winnick, M. (ed.) Nutrition and Exercise. New York: John Wiley & Sons, 1986, pp. 105‑116.
- Blimkie, C.J.R., P. Roche, and O. Bar‑Or. Concept of anaerobic to aerobic power ratio in pediatric health and disease. In: Rutenfranz, J. (ed.) Children and Exercise XII. Champaign, Illinois: Human Kinetics, 1986, pp. 31-37.
- Bar‑Or, O. The O2 cost of child’s movement in health and disease. In: Russo, P. and G. Gass (eds.) Exercise and Nutrition. Sydney: Cumberland College, 1987, pp 97-104.
- Bar‑Or, O. Methodologic considerations in pediatric exercise physiology. In: Russo, P. and G. Gass (eds.) Exercise and Nutrition. Sydney: Cumberland College, 1987, pp 105-115.
- Bar-Or, O. Factors that limit the maximal aerobic power of children with a chronic disease. In: Kaneko, M. (ed.) Fitness for the Aged, Disabled, and Industrial Worker. Champaign, Ill.: Human Kinetics, 1989, pp. 135-142.
- Bar-Or, O. Non-routine testing in the pediatric exercise laboratory. In: Coudert, J. and E. Van Praagh (eds) Pediatric Work Physiology. Paris, France, Masson, 1992, pp. 168-173.
- Bar-Or, O. Childhood and adolescent physical activity and fitness and adult risk factor. In: Bouchard C., Shephard, R.J., and Stephens, T. (eds.) Physical Activity, Fitness and Health. Champaign, Illinois: Human Kinetics, 1994, pp.931-942.
- Bar-Or, O. Beneficial and deleterious effects of training on the health of the child with a chronic disease. Chapter 8. In: H.A. Quinney, Gauvin, L., Wall, A.E.T., (eds.) Toward Active Living. Champaign, Illinois: Human Kinetics, 1994, pp. 55-60.
- Bar-Or, O. Developing the prepubertal athlete: physiological principles. In: Troup, J.P., A.P. Hollander, D. Strasse et al. (ed) Biomechanics and Medicine in Swimming. London, England: Chapman and Hall, 1996, pp. 135-139.
- Bar-Or, O., and B. Wilk. Fluid and electrolyte replenishment in the exercising child. In: Itala, South African Proceedings. In press.
- Smolander, J., J. Oksa, M. Tervo, K. Savonen, H. Pekkarinen, and O. Bar-Or. Thermal responses to cross-country skiing in prepubescent boys and in young men. In: Johannsen, B.N., and R. Nielsen (eds.) Thermal Physiology. Copenhagen,Denmark: The August Krogh Institute, 1997, pp. 339-342.
- Bar-Or, O. The young athlete with chronic disease. In: Chan, K-M., and L.J. Micheli (eds) Sports and Children. Williams & Wilkins, Hong Kong, 1998, pp. 219-228.
- Bar-Or, O. Physical performance of children with physical disabilities. In: Casagrande G. and F. Viviani (Eds.) Physical Activity and Health: Physiological, Epidemiological and Behavioural Aspects. Unipress, Italy, 1998, pp. 49-54.
- Bar-Or, O. Fluid balance and physiologic and behavioral control of fluid intake in physically active children. In: Arnaud, M.J. (ed). Hydration Throughout Life. John Libbey Eurotext, Italy, 1998, pp. 175-181.
- Bar-Or, O. Young swimmers: Physiologic considerations. In: Fu, F.H., E.P. Chien, and P-K. Chung (eds) Aquatic Sports Medicine for the New Century. Peacock Press, Hong Kong, 1999, pp 99-108.
- Bar-Or, O. Development of physiological responses to exercise. In: Joint Meeting Osaka 2000, Osaka University of Health and Sports Sciences, 2000, pp. 56-61.
- Bar-Or, O. Recreational vs. regimented activities in pediatric exercise medicine. In: Fu, F.H. and H. Ruskin (eds) Physical Fitness and Activity in the Context of Leisure Education. Glory Printing and Productions Co. Ltd., Hong Kong 2001, pp 37-44.
- Bar-Or, O. Nutritional considerations for the child athlete. In: Canadian Journal of Applied Physiology 26: S186-S191, 2001.
- Bar-Or, O. Dehydration and rehydration in the exercising child and adolescent. In: Malina, R.M. and M.A. Clark (eds) Youth Sports – Perspectives For a New Century. Coaches Choice, Monterey, CA 2003, pp 69-75.
- Wilk, B., D. Pascale, O. Bar-Or, L. Tremblay, S. Dominic, and D. Elliott. Cognitive and perceptual-motor responses to exercise-induced dehydration in boys. In: Van Praagh, E., J. Coudert, N. Fellmann, and P. Duche (eds) Book of Abstracts. Annual Congress, European College of Sport Science, Clermont-Ferrand, France, 2004, pp 145.