• Aucun résultat trouvé

III. Synthèse

5. Perspectives et conclusion

Cette thèse regroupant trois études représente une tentative d’identifier l’effet de la cadence de pédalage sur le profil de l’oxygénation musculaire et cérébrale lors de l’exercice. Plusieurs perspectives peuvent être envisagées suite à ce travail expérimental. En effet, nos résultats au niveau musculaire sont limités au muscle vastus lateralis de la jambe droite, il serait appréciable d’utiliser plusieurs optodes afin de comparer les réponses de deux jambes ainsi que des autres muscles impliqués dans le pédalage. Par ailleurs, nous avons suggéré, dans les différentes études, que l’augmentation de la cadence de pédalage augmenterait le recrutement de fibres à contraction rapide, toutefois, nous n’avons pas les moyens de vérifier cette hypothèse. Il donc important d’envisager l’utilisation de l’EMG dans les recherches futures afin d’avoir des éléments concrets de discussion. De même, il sera nécessaire de confirmer ces résultats par une mesure du débit sanguin musculaire lors d’exercices à différentes fréquences de contraction musculaire à l’aide d’une technique non-invasive (Échographie Doppler).

Pour conclure, ce travail nous a permis de mieux comprendre l’effet de la cadence de pédalage sur le profil de l’oxygénation musculaire et cérébrale lors de l’exercice d’intensité élevée mené jusqu’à l’épuisement. D’autre part, il nous a permis de mettre en évidence des différences liées à l’aptitude aérobie des sujets et à l’intensité de l’exercice dans les réponses cardiovasculaires, métaboliques, de l’oxygénation cérébrale et musculaire et de la performance lors d’exercices effectués à différentes cadences. Toutefois, il demeure des zones d’ombre liées à l’implication du niveau d’oxygénation cérébrale et musculaire dans la performance suite à un changement de la cadence de pédalage.

Références bibliographiques

Abbate, F., De Ruiter, C. J., Offringa, C., Sargeant, A. J., De Haan, A. (2002). In situ rat fast

skeletal muscle is more efficient at submaximal than at maximal activation levels. J Appl

Physiol, 92(5), 2089-96.

Adams, R. P., Welch, H. G. (1980). Oxygen uptake, acid-base status, and performance with

varied inspired oxygen fractions. J Appl Physiol, 49(5), 863-8.

Ahlquist, L. E., Bassett, D. R., Jr., Sufit, R., Nagle, F. J., Thomas, D. P. (1992). The effect of

pedaling frequency on glycogen depletion rates in type I and type II quadriceps muscle fibers during submaximal cycling exercise. Eur J Appl Physiol Occup Physiol, 65(4), 360-4.

Ainslie, P. N., Cotter, J. D., George, K. P., Lucas, S., Murrell, C., Shave, R., Thomas, K. N.,

Williams, M. J., Atkinson, G. (2008). Elevation in cerebral blood flow velocity with aerobic fitness throughout healthy human ageing. J Physiol, 586(16), 4005-10.

Amann, M., Calbet, J. A. (2008). Convective oxygen transport and fatigue. J Appl Physiol,

104(3), 861-70.

Amann, M., Proctor, L. T., Sebranek, J. J., Eldridge, M. W., Pegelow, D. F., Dempsey, J. A.

(2008). Somatosensory feedback from the limbs exerts inhibitory influences on central neural drive during whole body endurance exercise. J Appl Physiol, 105(6), 1714-24.

Amann, M., Romer, L. M., Subudhi, A. W., Pegelow, D. F., Dempsey, J. A. (2007). Severity

of arterial hypoxaemia affects the relative contributions of peripheral muscle fatigue to exercise performance in healthy humans. J Physiol, 581(Pt 1), 389-403.

Andersen, P., Saltin, B. (1985). Maximal perfusion of skeletal muscle in man. J Physiol, 366,

233-49.

Ando, S., Kokubu, M., Yamada, Y., Kimura, M. (2011). Does cerebral oxygenation affect

cognitive function during exercise? Eur J Appl Physiol, 111(9), 1973-82.

Armstrong, R. B., Laughlin, M. H. (1983). Blood flows within and among rat muscles as a

function of time during high speed treadmill exercise. J Physiol, 344, 189-208.

Atkins, E. R., Brodie, F. G., Rafelt, S. E., Panerai, R. B., Robinson, T. G. (2010). Dynamic

cerebral autoregulation is compromised acutely following mild ischaemic stroke but not transient ischaemic attack. Cerebrovasc Dis, 29(3), 228-35.

Barstow, T. J., Jones, A. M., Nguyen, P. H., Casaburi, R. (1996). Influence of muscle fiber

type and pedal frequency on oxygen uptake kinetics of heavy exercise. J Appl Physiol, 81(4), 1642-50.

Beelen, A., Sargeant, A. J. (1993). Effect of prior exercise at different pedalling frequencies

Beer, A. (1851). Versuch der Absorptions-Verhältnisse des Cordierites für rothes Licht zu

bestimmen. Ann Physik Chem, 84, 37-52.

Belardinelli, R., Barstow, T. J., Porszasz, J., Wasserman, K. (1995). Changes in skeletal

muscle oxygenation during incremental exercise measured with near infrared spectroscopy. Eur J Appl Physiol Occup Physiol, 70(6), 487-92.

Bellemare, F., Wight, D., Lavigne, C. M., Grassino, A. (1983). Effect of tension and timing

of contraction on the blood flow of the diaphragm. J Appl Physiol, 54(6), 1597-606.

Bhambhani, Y., Fan, J. L., Place, N., Rodriguez-Falces, J., Kayser, B. (2014).

Electromyographic, cerebral, and muscle hemodynamic responses during intermittent, isometric contractions of the biceps brachii at three submaximal intensities. Front

Physiol, 5(190).

Bhambhani, Y., Malik, R., Mookerjee, S. (2007). Cerebral oxygenation declines at exercise

intensities above the respiratory compensation threshold. Respir Physiol Neurobiol, 156(2), 196-202.

Bhambhani, Y. N., Buckley, S. M., Susaki, T. (1997). Detection of ventilatory threshold

using near infrared spectroscopy in men and women. Med Sci Sports Exerc, 29(3), 402-9.

Billat, L. V., Koralsztein, J. P. (1996). Significance of the velocity at VO2max and time to

exhaustion at this velocity. Sports Med, 22(2), 90-108.

Billat, V. L., Mille-Hamard, L., Petit, B., Koralsztein, J. P. (1999). The role of cadence on the

VO2 slow component in cycling and running in triathletes. Int J Sports Med, 20(7), 429-37.

Boning, D., Gonen, Y., Maassen, N. (1984). Relationship between work load, pedal

frequency, and physical fitness. Int J Sports Med, 5(2), 92-7.

Boone, J., Koppo, K., Barstow, T. J., Bouckaert, J. (2010). Effect of exercise protocol on

deoxy[Hb + Mb]: incremental step versus ramp exercise. Med Sci Sports Exerc, 42(5), 935-42.

Borg, G. (1970). Perceived exertion as an indicator of somatic stress. Scand J Rehabil Med,

2(2), 92-8.

Boushel, R., Saltin, B. (2013). Ex vivo measures of muscle mitochondrial capacity reveal

quantitative limits of oxygen delivery by the circulation during exercise. Int J Biochem

Cell Biol, 45(1), 68-75.

Bouzier-Sore, A. K., Voisin, P., Canioni, P., Magistretti, P. J., Pellerin, L. (2003). Lactate is a

preferential oxidative energy substrate over glucose for neurons in culture. J Cereb Blood

Flow Metab, 23(11), 1298-306.

Brisswalter, J., Hausswirth, C., Smith, D., Vercruyssen, F., Vallier, J. M. (2000).

Energetically optimal cadence vs. freely-chosen cadence during cycling: effect of exercise duration. Int J Sports Med, 21(1), 60-4.

Bruder, N., Velly, L., Cantais, E. (2011). Métabolisme et fonctions cérébrales. In: Désordres

métaboliques et réanimation. Springer Paris, pp. 287-304. (Le point sur ...).

Buchler, B., Magder, S., Roussos, C. (1985). Effects of contraction frequency and duty cycle

on diaphragmatic blood flow. J Appl Physiol, 58(1), 265-73.

Calbet, J. A., Gonzalez-Alonso, J., Helge, J. W., Sondergaard, H., Munch-Andersen, T.,

Boushel, R., Saltin, B. (2007). Cardiac output and leg and arm blood flow during incremental exercise to exhaustion on the cycle ergometer. J Appl Physiol, 103(3), 969-78.

Calbet, J. A., Lundby, C., Sander, M., Robach, P., Saltin, B., Boushel, R. (2006). Effects of

ATP-induced leg vasodilation on VO2 peak and leg O2 extraction during maximal exercise in humans. Am J Physiol Regul Integr Comp Physiol, 291(2), 16.

Cettolo, V., Ferrari, M., Biasini, V., Quaresima, V. (2007). Vastus lateralis O2 desaturation

in response to fast and short maximal contraction. Med Sci Sports Exerc, 39(11), 1949-59.

Chance, B., Nioka, S., Kent, J., McCully, K., Fountain, M., Greenfeld, R., Holtom, G.

(1988). Time-resolved spectroscopy of hemoglobin and myoglobin in resting and ischemic muscle. Anal Biochem, 174(2), 698-707.

Chavarren, J., Calbet, J. A. (1999). Cycling efficiency and pedalling frequency in road

cyclists. Eur J Appl Physiol Occup Physiol, 80(6), 555-63.

Chin, L. M., Kowalchuk, J. M., Barstow, T. J., Kondo, N., Amano, T., Shiojiri, T., Koga, S.

(2011). The relationship between muscle deoxygenation and activation in different muscles of the quadriceps during cycle ramp exercise. J Appl Physiol, 111(5), 1259-65.

Clifford, P. S. (2011). Local control of blood flow. Adv Physiol Educ, 35(1), 5-15.

Coast, J. R., Rasmussen, S. A., Krause, K. M., O'Kroy, J. A., Loy, R. A., Rhodes, J. (1993).

Ventilatory work and oxygen consumption during exercise and hyperventilation. J Appl

Physiol, 74(2), 793-8.

Coast, J. R., Welch, H. G. (1985). Linear increase in optimal pedal rate with increased power

output in cycle ergometry. Eur J Appl Physiol Occup Physiol, 53(4), 339-42.

Coyle, E. F., Sidossis, L. S., Horowitz, J. F., Beltz, J. D. (1992). Cycling efficiency is related

to the percentage of type I muscle fibers. Med Sci Sports Exerc, 24(7), 782-8.

Dahmane, R., Djordjevic, S., Simunic, B., Valencic, V. (2005). Spatial fiber type distribution

in normal human muscle Histochemical and tensiomyographical evaluation. J Biomech, 38(12), 2451-9.

DeLorey, D. S., Kowalchuk, J. M., Paterson, D. H. (2003). Relationship between pulmonary

O2 uptake kinetics and muscle deoxygenation during moderate-intensity exercise. J Appl

Delp, M. D., Laughlin, M. H. (1998). Regulation of skeletal muscle perfusion during

exercise. Acta Physiol Scand, 162(3), 411-9.

Delpy, D. T., Cope, M. (1997). Quantification in tissue near–infrared spectroscopy. Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 352(1354), 649-659.

Delpy, D. T., Cope, M., van der Zee, P., Arridge, S., Wray, S., Wyatt, J. (1988). Estimation

of optical pathlength through tissue from direct time of flight measurement. Phys Med

Biol, 33(12), 1433-42.

Denadai, B. S., Ruas, V. D., Figueira, T. R. (2006). Maximal lactate steady state

concentration independent of pedal cadence in active individuals. Eur J Appl Physiol, 96(4), 477-80.

Dickinson, S. (1929). The efficiency of bicycle-pedalling, as affected by speed and load. J Physiol, 67(3), 242-55.

duManoir, G. R., DeLorey, D. S., Kowalchuk, J. M., Paterson, D. H. (2010). Kinetics of VO2

limb blood flow and regional muscle deoxygenation in young adults during moderate intensity, knee-extension exercise. Eur J Appl Physiol, 108(3), 607-17.

Duncan, A., Meek, J. H., Clemence, M., Elwell, C. E., Tyszczuk, L., Cope, M., Delpy, D. T.

(1995). Optical pathlength measurements on adult head, calf and forearm and the head of the newborn infant using phase resolved optical spectroscopy. Phys Med Biol, 40(2), 295-304.

Ekblom, B., Huot, R., Stein, E. M., Thorstensson, A. T. (1975). Effect of changes in arterial

oxygen content on circulation and physical performance. J Appl Physiol, 39(1), 71-5.

Ekkekakis, P. (2009). Illuminating the black box: investigating prefrontal cortical

hemodynamics during exercise with near-infrared spectroscopy. J Sport Exerc Psychol, 31(4), 505-53.

Enoka, R. M., Duchateau, J. (2008). Muscle fatigue: what, why and how it influences muscle

function. J Physiol, 586(1), 11-23.

Ericson, M. (1986). On the biomechanics of cycling. A study of joint and muscle load during

exercise on the bicycle ergometer. Scand J Rehabil Med Suppl, 16, 1-43.

Esaki, K., Hamaoka, T., Radegran, G., Boushel, R., Hansen, J., Katsumura, T., Haga, S.,

Mizuno, M. (2005). Association between regional quadriceps oxygenation and blood oxygen saturation during normoxic one-legged dynamic knee extension. Eur J Appl

Physiol, 95(4), 361-70.

Ferguson, R. A., Ball, D., Krustrup, P., Aagaard, P., Kjaer, M., Sargeant, A. J., Hellsten, Y.,

Bangsbo, J. (2001). Muscle oxygen uptake and energy turnover during dynamic exercise at different contraction frequencies in humans. J Physiol, 536(Pt 1), 261-71.

Ferrari, M., Binzoni, T., Quaresima, V. (1997). Oxidative metabolism in muscle. Philos Trans R Soc Lond B Biol Sci, 352(1354), 677-83.

Ferrari, M., Mottola, L., Quaresima, V. (2004). Principles, techniques, and limitations of near

infrared spectroscopy. Can J Appl Physiol, 29(4), 463-87.

Ferrari, M., Muthalib, M., Quaresima, V. (2011). The use of near-infrared spectroscopy in

understanding skeletal muscle physiology: recent developments. Philos Trans A Math

Phys Eng Sci, 369(1955), 4577-90.

Ferrari, M., Quaresima, V. (2012). A brief review on the history of human functional

near-infrared spectroscopy (fNIRS) development and fields of application. Neuroimage, 63(2), 921-35.

Ferrari, M., Quaresima, V. (2012). Review: Near infrared brain and muscle oximetry: from

the discovery to current applications. Journal of Near Infrared Spectroscopy, 20(1), 1-14.

Ferreira, L. F., Koga, S., Barstow, T. J. (2007). Dynamics of noninvasively estimated

microvascular O2 extraction during ramp exercise. J Appl Physiol, 103(6), 1999-2004.

Ferreira, L. F., Lutjemeier, B. J., Townsend, D. K., Barstow, T. J. (2006). Effects of pedal

frequency on estimated muscle microvascular O2 extraction. Eur J Appl Physiol, 96(5), 558-63.

Fitts, R. H. (1994). Cellular mechanisms of muscle fatigue. Physiol Rev, 74(1), 49-94.

Foss, O., Hallen, J. (2004). The most economical cadence increases with increasing

workload. Eur J Appl Physiol, 92(4-5), 443-51.

Foss, O., Hallen, J. (2005). Cadence and performance in elite cyclists. Eur J Appl Physiol,

93(4), 453-62.

Francescato, M. P., Girardis, M., di Prampero, P. E. (1995). Oxygen cost of internal work

during cycling. Eur J Appl Physiol Occup Physiol, 72(1-2), 51-7.

Gaesser, G. A., Brooks, G. A. (1975). Muscular efficiency during steady-rate exercise:

effects of speed and work rate. J Appl Physiol, 38(6), 1132-9.

Gandevia, S. C. (2001). Spinal and supraspinal factors in human muscle fatigue. Physiol Rev,

81(4), 1725-89.

Geraskin, D., Boeth, H., Kohl-Bareis, M. (2009). Optical measurement of adipose tissue

thickness and comparison with ultrasound, magnetic resonance imging, and callipers.

Journal of Biomedical Optics, 14(4), 044017-044017-12.

Geraskin, D., Platen, P., Franke, J., Kohl-Bareis, M. (2007). Algorithms for muscle

oxygenation monitoring corrected for adipose tissue thickness. pp. 66290P-66290P-4.6629).

Globus, M., Melamed, E., Keren, A., Tzivoni, D., Granot, C., Lavy, S., Stern, S. (1983).

Effect of exercise on cerebral circulation. J Cereb Blood Flow Metab, 3(3), 287-90.

Gomes, P. S., Matsuura, C., Bhambhani, Y. N. (2013). Effects of hypoxia on cerebral and

muscle haemodynamics during knee extensions in healthy subjects. Eur J Appl Physiol, 113(1), 13-23.

Gonzalez-Alonso, J., Calbet, J. A. (2003). Reductions in systemic and skeletal muscle blood

flow and oxygen delivery limit maximal aerobic capacity in humans. Circulation, 107(6), 824-30.

Gonzalez-Alonso, J., Dalsgaard, M. K., Osada, T., Volianitis, S., Dawson, E. A., Yoshiga, C.

C., Secher, N. H. (2004). Brain and central haemodynamics and oxygenation during maximal exercise in humans. J Physiol, 557(Pt 1), 331-42.

Goodall, S., Gonzalez-Alonso, J., Ali, L., Ross, E. Z., Romer, L. M. (2012). Supraspinal

fatigue after normoxic and hypoxic exercise in humans. J Physiol, 590(Pt 11), 2767-82.

Gotshall, R. W., Bauer, T. A., Fahrner, S. L. (1996). Cycling cadence alters exercise

hemodynamics. Int J Sports Med, 17(1), 17-21.

Grassi, B., Pogliaghi, S., Rampichini, S., Quaresima, V., Ferrari, M., Marconi, C., Cerretelli,

P. (2003). Muscle oxygenation and pulmonary gas exchange kinetics during cycling exercise on-transitions in humans. J Appl Physiol, 95(1), 149-58.

Grassi, B., Quaresima, V., Marconi, C., Ferrari, M., Cerretelli, P. (1999). Blood lactate

accumulation and muscle deoxygenation during incremental exercise. J Appl Physiol, 87(1), 348-55.

Gratton, G., Maier, J. S., Fabiani, M., Mantulin, W. W., Gratton, E. (1994). Feasibility of

intracranial near-infrared optical scanning. Psychophysiology, 31(2), 211-5.

Hamann, J. J., Kluess, H. A., Buckwalter, J. B., Clifford, P. S. (2005). Blood flow response

to muscle contractions is more closely related to metabolic rate than contractile work. J

Appl Physiol, 98(6), 2096-100.

Hamaoka, T., McCully, K. K., Niwayama, M., Chance, B. (2011). The use of muscle

near-infrared spectroscopy in sport, health and medical sciences: recent developments. Philos

Trans A Math Phys Eng Sci, 369(1955), 4591-604.

Hansen, E. A., Andersen, J. L., Nielsen, J. S., Sjogaard, G. (2002). Muscle fibre type,

efficiency, and mechanical optima affect freely chosen pedal rate during cycling. Acta

Physiol Scand, 176(3), 185-94.

Hellstrom, G., Fischer-Colbrie, W., Wahlgren, N. G., Jogestrand, T. (1996). Carotid artery

blood flow and middle cerebral artery blood flow velocity during physical exercise. J

Appl Physiol, 81(1), 413-8.

Hermansen, L., Saltin, B. (1969). Oxygen uptake during maximal treadmill and bicycle

Hill, D. W., Vingren, J. L. (2012). The effect of pedalling cadence on maximal accumulated

oxygen deficit. Eur J Appl Physiol, 112(7), 2637-43.

Hintzy, F., Groslambert, A., Dugue, B., Rouillon, J. D., Belli, A. (2001). Does endurance or

sprint training influence the perception of the optimal pedalling rate during submaximal cycling exercise? Int J Sports Med, 22(7), 513-6.

Hoelting, B. D., Scheuermann, B. W., Barstow, T. J. (2001). Effect of contraction frequency

on leg blood flow during knee extension exercise in humans. J Appl Physiol, 91(2), 671-9.

Hogan, M. C., Richardson, R. S., Kurdak, S. S. (1994). Initial fall in skeletal muscle force

development during ischemia is related to oxygen availability. J Appl Physiol, 77(5), 2380-4.

Holloszy, J. O. (2008). Regulation by exercise of skeletal muscle content of mitochondria

and GLUT4. J Physiol Pharmacol, 7, 5-18.

Hoshi, Y. (2005). Functional near-infrared spectroscopy: potential and limitations in

neuroimaging studies. Int Rev Neurobiol, 66, 237-66.

Hussain, S. N., Roussos, C., Magder, S. (1989). Effects of tension, duty cycle, and arterial

pressure on diaphragmatic blood flow in dogs. J Appl Physiol, 66(2), 968-76.

Ide, K., Boushel, R., Sorensen, H. M., Fernandes, A., Cai, Y., Pott, F., Secher, N. H. (2000).

Middle cerebral artery blood velocity during exercise with beta-1 adrenergic and unilateral stellate ganglion blockade in humans. Acta Physiol Scand, 170(1), 33-8.

Ide, K., Horn, A., Secher, N. H. (1999). Cerebral metabolic response to submaximal exercise. J Appl Physiol, 87(5), 1604-8.

Ide, K., Pott, F., Van Lieshout, J. J., Secher, N. H. (1998). Middle cerebral artery blood

velocity depends on cardiac output during exercise with a large muscle mass. Acta

Physiol Scand, 162(1), 13-20.

Imray, C. H., Myers, S. D., Pattinson, K. T., Bradwell, A. R., Chan, C. W., Harris, S.,

Collins, P., Wright, A. D. (2005). Effect of exercise on cerebral perfusion in humans at high altitude. J Appl Physiol, 99(2), 699-706.

Ito, H., Kanno, I., Fukuda, H. (2005). Human cerebral circulation: positron emission

tomography studies. Ann Nucl Med, 19(2), 65-74.

Jacobs, D. R., Berg, E. K., Slivka, D. R., Noble, J. M. (2013). The effect of cadence on

cycling efficiency and local tissue oxygenation. J Strength Cond Res, 27(3), 637-42.

Jensen, G., Nielsen, H. B., Ide, K., Madsen, P. L., Svendsen, L. B., Svendsen, U. G., Secher,

N. H. (2002). Cerebral oxygenation during exercise in patients with terminal lung disease. Chest, 122(2), 445-50.

Jobsis, F. F. (1977). Noninvasive, infrared monitoring of cerebral and myocardial oxygen

sufficiency and circulatory parameters. Science, 198(4323), 1264-7.

Jorgensen, L. G., Perko, M., Hanel, B., Schroeder, T. V., Secher, N. H. (1992). Middle

cerebral artery flow velocity and blood flow during exercise and muscle ischemia in humans. J Appl Physiol, 72(3), 1123-32.

Kalliokoski, K. K., Oikonen, V., Takala, T. O., Sipila, H., Knuuti, J., Nuutila, P. (2001).

Enhanced oxygen extraction and reduced flow heterogeneity in exercising muscle in endurance-trained men. Am J Physiol Endocrinol Metab, 280(6), E1015-21.

Katayama, K., Amann, M., Pegelow, D. F., Jacques, A. J., Dempsey, J. A. (2007). Effect of

arterial oxygenation on quadriceps fatigability during isolated muscle exercise. Am J

Physiol Regul Integr Comp Physiol, 292(3), 22.

Kayser, B. (2003). Exercise starts and ends in the brain. Eur J Appl Physiol, 90(3-4), 411-9.

Kayser, B., Narici, M., Binzoni, T., Grassi, B., Cerretelli, P. (1994). Fatigue and exhaustion

in chronic hypobaric hypoxia: influence of exercising muscle mass. J Appl Physiol, 76(2), 634-40.

Keramidas, M. E., Kounalakis, S. N., Eiken, O., Mekjavic, I. B. (2011). Muscle and cerebral

oxygenation during exercise performance after short-term respiratory work. Respir

Physiol Neurobiol, 175(2), 247-54.

Kime, R., Im, J., Moser, D., Lin, Y., Nioka, S., Katsumura, T., Chance, B. (2005). Reduced

heterogeneity of muscle deoxygenation during heavy bicycle exercise. Med Sci Sports

Exerc, 37(3), 412-7.

Kime, R., Im, J., Moser, D., Nioka, S., Katsumura, T., Chance, B. (2009). Noninvasive

determination of exercise-induced vasodilation during bicycle exercise using near infrared spectroscopy. Med Sci Monit, 15(3), CR89-94.

Knight, D. R., Schaffartzik, W., Poole, D. C., Hogan, M. C., Bebout, D. E., Wagner, P. D.

(1993). Effects of hyperoxia on maximal leg O2 supply and utilization in men. J Appl

Physiol, 75(6), 2586-94.

Koga, S., Poole, D. C., Ferreira, L. F., Whipp, B. J., Kondo, N., Saitoh, T., Ohmae, E.,

Barstow, T. J. (2007). Spatial heterogeneity of quadriceps muscle deoxygenation kinetics during cycle exercise. J Appl Physiol, 103(6), 2049-56.

Koga, S., Poole, D. C., Fukuoka, Y., Ferreira, L. F., Kondo, N., Ohmae, E., Barstow, T. J.

(2011). Methodological validation of the dynamic heterogeneity of muscle deoxygenation within the quadriceps during cycle exercise. Am J Physiol Regul Integr

Comp Physiol, 301(2), 1.

Kounalakis, S. N., Geladas, N. D. (2012). Cardiovascular drift and cerebral and muscle tissue

oxygenation during prolonged cycling at different pedalling cadences. Appl Physiol Nutr

Laaksonen, M. S., Kalliokoski, K. K., Kyrolainen, H., Kemppainen, J., Teras, M., Sipila, H.,

Nuutila, P., Knuuti, J. (2003). Skeletal muscle blood flow and flow heterogeneity during dynamic and isometric exercise in humans. Am J Physiol Heart Circ Physiol, 284(3), 21.

Lassen, N. A. (1959). Cerebral blood flow and oxygen consumption in man. Physiol Rev,

39(2), 183-238.

Laughlin, M. H., Armstrong, R. B. (1982). Muscular blood flow distribution patterns as a

function of running speed in rats. Am J Physiol, 243(2), H296-306.

Laughlin, M. H., Roseguini, B. (2008). Mechanisms for exercise training-induced increases

in skeletal muscle blood flow capacity: differences with interval sprint training versus aerobic endurance training. J Physiol Pharmacol, 7, 71-88.

Leclair, E., Borel, B., Baquet, G., Berthoin, S., Mucci, P., Thevenet, D., Reguem, S. C.

(2010). Reproducibility of measurement of muscle deoxygenation in children during exercise. Pediatr Exerc Sci, 22(2), 183-94.

Leff, D. R., Orihuela-Espina, F., Elwell, C. E., Athanasiou, T., Delpy, D. T., Darzi, A. W.,

Yang, G. Z. (2011). Assessment of the cerebral cortex during motor task behaviours in adults: a systematic review of functional near infrared spectroscopy (fNIRS) studies.

Neuroimage, 54(4), 2922-36.

Legrand, R., Marles, A., Prieur, F., Lazzari, S., Blondel, N., Mucci, P. (2007). Related trends

in locomotor and respiratory muscle oxygenation during exercise. Med Sci Sports Exerc, 39(1), 91-100.

Lepers, R., Millet, G. Y., Maffiuletti, N. A., Hausswirth, C., Brisswalter, J. (2001). Effect of

pedalling rates on physiological response during endurance cycling. Eur J Appl Physiol, 85(3-4), 392-5.

Lexell, J., Henriksson-Larsen, K., Sjostrom, M. (1983). Distribution of different fibre types

in human skeletal muscles. 2. A study of cross-sections of whole m. vastus lateralis. Acta

Physiol Scand, 117(1), 115-22.

Lin, Y., Lech, G., Nioka, S., Intes, X., Chance, B. (2002). Noninvasive, low-noise, fast

imaging of blood volume and deoxygenation changes in muscles using light-emitting diode continuous-wave imager. Review of Scientific Instruments, 73(8), 3065-3074.

Linkis, P., Jorgensen, L. G., Olesen, H. L., Madsen, P. L., Lassen, N. A., Secher, N. H.

(1995). Dynamic exercise enhances regional cerebral artery mean flow velocity. J Appl

Physiol, 78(1), 12-6.

Linossier, M. T., Dormois, D., Arsac, L., Denis, C., Gay, J. P., Geyssant, A., Lacour, J. R.

(2000). Effect of hyperoxia on aerobic and anaerobic performances and muscle metabolism during maximal cycling exercise. Acta Physiol Scand, 168(3), 403-11.

Lloyd-Fox, S., Blasi, A., Elwell, C. E. (2010). Illuminating the developing brain: the past,

present and future of functional near infrared spectroscopy. Neurosci Biobehav Rev, 34(3), 269-84.

Lucia, A., San Juan, A. F., Montilla, M., CaNete, S., Santalla, A., Earnest, C., Perez, M.

(2004). In professional road cyclists, low pedaling cadences are less efficient. Med Sci

Sports Exerc, 36(6), 1048-54.

Lundby, C., Sander, M., van Hall, G., Saltin, B., Calbet, J. A. (2006). Maximal exercise and

muscle oxygen extraction in acclimatizing lowlanders and high altitude natives. J

Physiol, 573(Pt 2), 535-47.

Lunt, H. C., Corbett, J., Barwood, M. J., Tipton, M. J. (2011). Cycling cadence affects heart

rate variability. Physiol Meas, 32(8), 1133-45.

Lutjemeier, B. J., Ferreira, L. F., Poole, D. C., Townsend, D., Barstow, T. J. (2008). Muscle

microvascular hemoglobin concentration and oxygenation within the contraction-relaxation cycle. Respir Physiol Neurobiol, 160(2), 131-8.

Lutjemeier, B. J., Miura, A., Scheuermann, B. W., Koga, S., Townsend, D. K., Barstow, T. J.

(2005). Muscle contraction-blood flow interactions during upright knee extension exercise in humans. J Appl Physiol, 98(4), 1575-83.

Mackie, B. G., Terjung, R. L. (1983). Blood flow to different skeletal muscle fiber types

during contraction. Am J Physiol, 245(2), H265-75.

Madsen, P. L., Sperling, B. K., Warming, T., Schmidt, J. F., Secher, N. H., Wildschiodtz, G.,

Holm, S., Lassen, N. A. (1993). Middle cerebral artery blood velocity and cerebral blood flow and O2 uptake during dynamic exercise. J Appl Physiol, 74(1), 245-50.

Marcinek, D. J., Amara, C. E., Matz, K., Conley, K. E., Schenkman, K. A. (2007).

Wavelength shift analysis: a simple method to determine the contribution of hemoglobin and myoglobin to in vivo optical spectra. Appl Spectrosc, 61(6), 665-9.

Marsh, A. P., Martin, P. E., Foley, K. O. (2000). Effect of cadence, cycling experience, and

aerobic power on delta efficiency during cycling. Med Sci Sports Exerc, 32(9), 1630-4.

Matsuura, C., Gomes, P. S., Haykowsky, M., Bhambhani, Y. (2011). Cerebral and muscle

oxygenation changes during static and dynamic knee extensions to voluntary fatigue in healthy men and women: a near infrared spectroscopy study. Clin Physiol Funct

Imaging, 31(2), 114-23.

McCully, K. K., Hamaoka, T. (2000). Near-infrared spectroscopy: what can it tell us about

oxygen saturation in skeletal muscle? Exerc Sport Sci Rev, 28(3), 123-7.

McKay, B. R., Paterson, D. H., Kowalchuk, J. M. (2009). Effect of short-term high-intensity

interval training vs. continuous training on O2 uptake kinetics, muscle deoxygenation, and exercise performance. J Appl Physiol, 107(1), 128-38.

McKay, G. A., Banister, E. W. (1976). A comparison of maximum oxygen uptake

determination by bicycle ergometry at various pedaling frequencies and by treadmill running at various speeds. Eur J Appl Physiol Occup Physiol, 35(3), 191-200.

McNaughton, L., Thomas, D. (1996). Effects of differing pedalling speeds on the

power-duration relationship of high intensity cycle ergometry. Int J Sports Med, 17(4), 287-92.

Miura, H., McCully, K., Nioka, S., Chance, B. (2004). Relationship between muscle

architectural features and oxygenation status determined by near infrared device. Eur J

Appl Physiol, 91(2-3), 273-8.

Miyazawa, T., Horiuchi, M., Komine, H., Sugawara, J., Fadel, P. J., Ogoh, S. (2013). Skin

blood flow influences cerebral oxygenation measured by near-infrared spectroscopy during dynamic exercise. Eur J Appl Physiol, 113(11), 2841-8.

Mizuno, M., Kimura, Y., Iwakawa, T., Oda, K., Ishii, K., Ishiwata, K., Nakamura, Y.,

Muraoka, I. (2003). Regional differences in blood flow and oxygen consumption in resting muscle and their relationship during recovery from exhaustive exercise. J Appl

Physiol, 95(6), 2204-10.

Mogensen, M., Bagger, M., Pedersen, P. K., Fernstrom, M., Sahlin, K. (2006). Cycling

efficiency in humans is related to low UCP3 content and to type I fibres but not to mitochondrial efficiency. J Physiol, 571(Pt 3), 669-81.

Moraine, J. J., Lamotte, M., Berre, J., Niset, G., Leduc, A., Naeije, R. (1993). Relationship of

middle cerebral artery blood flow velocity to intensity during dynamic exercise in normal subjects. Eur J Appl Physiol Occup Physiol, 67(1), 35-8.

Mornieux, G., Guenette, J. A., Sheel, A. W., Sanderson, D. J. (2007). Influence of cadence,

power output and hypoxia on the joint moment distribution during cycling. Eur J Appl