Bante, S., Bogdanis, G.C., Chairpoulou, C. and Maridaki, M. (2007) Cardiorespiratory and metabolic responses to a simulated synchronized swimming routine in senior (>18 years) and comen (13-15 years) national level athletes. Journal of Sports Medicine and Physical Fitness 47, 291-299.

Dall Ava-Santucci, J., Dessanges, J.F., Dinh Xuan, A.T. and Lockhart, A. (1996) Is arterialized earlobe blood PO2 an acceptable substitute for arterial blood PO2? European Respiratory Journal 9, 1329-1330.

Dicker, S. G., Lofthus, G. K., Thornton, N. W. and Brooks, G. A. (1980) Respiratory and heart rate responses to tethered controlled frequency breathing swimming. Medicine and Science in Sport and Exercise 12, 20-23.

Fajac, I., Texereau, J., Rivoal, V., Dessanges, J.F., Dihn-xuan, A.T. and Dall Ava-Santucci, J. (1998) Blood gas measurement during exercise: a comparative study between arterialized earlobe sampling and direct arterial puncture in adults. European Respiratory Journal 11, 712 - 715.

Holmér, I. and Gullstrand, L. (1980) Physiological responses to swimming with a controlled frequency of breathing. Scandinavian Journal of Sports Science 2, 1-6.

Jones, N.L., Robertson, D.G. and Kane, J.W. (1979) Difference between end-tidal and arterial Pco2 in exercise. Journal of Applied Physiology 47, 954-960.

Kapus, J., Ušaj, A., Kapus, V. and Štrumbelj, B. (2002) The influence of reduced breathing during swimming on some respiratory and metabolic values in blood. Kinesiologia Slovenica 8, 14-18.

Kapus, J., Ušaj, A., Kapus, V. and Štrumbelj, B. (2003) The influence of reduced breathing during intense front crawl swimming on some respiratory and metabolic values in blood. Kinesiologia Slovenica 9, 12-17.

Kapus, J., Ušaj, A., Kapus, V. and Štrumbelj, B. (2007) The influence of reduced breathing during incremental bicycle exercise on some ventilatory and gas exchange parameters. In: Proceedings of 11th Mediterranean Conference on Medical and Biological Engineering and Computing. Eds: Jarm, T., Kramar, P. and Zupanic, A. New York: Springer.

Lee, C., Cordain, L., Sockler, J. and Tucker, A. (1990) Metabolic consequences of reduced frequency breathing during submaximal exercise at moderate altitude. European Journal of Applied Physiology 61, 289-293.

Martin, D., Powers, S., Cicale, M., Collop, N., Huang, D. and Criswell, D. (1992) Validity of pulse oximetry during exercise in elite endurance athletes. Journal of Applied Physiology 72, 455-458.

McEvoy, J.D.S., Jones, N.L. (1975) Arterialized capillary blood gases in exercise studies. Medicine and Science in Sports 7, 312-315.

Mengelkoch, L.J., Martin, D. and Lawler, J. (1994) A review of the principles of pulse oximetry and accuracy of pulse oximeter estimates during exercise. Physical Therapy 74, 40-49.

Peyrebrune, M., Robinson, J., Lakomy, H. and Nevill, M. (2002) Effects of controlled frequency breathing on maximal tethered swimming performance. In: Biomechanics and Medicine in Swimming 9. Ed: Chatard, J.C. Saint-Etienne: Laboratoire de Physiologie and Service de Exploration Fonctionnelle Cardio-respiratorie et de Medecine du Sport. 289-294.

Powers, S.K., Dodd, S., Freeman, J., Ayers, G.D., Samson, H. and McKnight, T. (1989) Accuracy of pulse oximetry to estimate HbO2 fraction of total Hb during exercise. Journal of Applied Physiology 67, 300-304.

Robbins, P.A., Conway, J., Cunningham, D.A., Khamnei, S. and Paterson, D.J. (1990) A comparison of indirect methods for continuous estimation of arterial Pco2 in men. Journal of Applied Physiology 68, 1727-1731.

Rodriguez, F., Keskinen, K., Malvela, M. and Keskinen, O. (2002) Oxygen uptake kinetics during free swimming: A pilot study. In: Biomechanics and Medicine in Swimming 9. Ed: Chatard, J.C. Saint-Etienne: Laboratoire de Physiologie and Service de Exploration Fonctionnelle Cardio-respiratorie et de Medecine du Sport. 379-384.

Sharp, R.L., Williams, D.J. and Bevan, L. (1991) Effects of controlled frequency breathing during exercise on blood gases and acid-base balance. International Journal of Sports Medicine 12, 62-65.

Smyth, R.J., D`Urzo, A.D., Slutsky, A.S., Galko, B.M. and Rebuck, A.S. (1986) Ear oximetry during combined hypoxia and exercise. Journal of Applied Physiology 60, 716-719.

Štrumbelj, B., Ušaj, A., Kapus, J. and Bednarik, J. (2006) Evidence of insufficient pulmonary ventilation during crawl swimming with maximal and supramaximal intensities. In: Biomechanics and Medicine in Swimming 10. Eds: Vilas-Boas, J.P., Alves, F., Marques, A. 1 th edition. Porto: Portuguese Journal of Sport Sciences. 175-177.

Town, G. P. and Vanness, J. M. (1990) Metabolic responses to controlled frequency breathing in competitive swimmers. Medicine and Science in Sport and Exercise 22, 112-116.

Yamamoto, Y., Mutoh, Y., Kobayashi, H. and Miyashita, M. (1987) Effects of reduced frequency breathing on arterial hypoxemia during exercise. European Journal of Applied Physiology 56, 522-527.

West, S.A, Drummond, M.J., VanNess, J.M. and Ciccolella, M.E. (2005) Blood lactate and metabolic responses to controlled frequency breathing during graded swimming. Journal of Strength and Conditioning Research 19, 772-776.

Williams, J.S. and Babb, T.G. (1997) Differences between estimates and measured Paco2 during rest and exercise in older subjects. Journal of Applied Physiology 83, 312-316.