Cardiometabolic and perceptual responses to maximal exercise: Comparing graded walking to running
Graded exercise testing on a treadmill can be accomplished by increasing speed and/or grade. The purpose of this study was to compare cardiometabolic responses during graded walking and ungraded running. Thirty healthy, active adults (21 females, 9 males; VO2peak = 39.9 ± 5.4 ml/kg/min) completed two counterbalanced maximal exercise tests (Walk Max & Run Max). Walk tests started at a self-selected brisk speed, increased grade by 2% each minute. Run tests started at 3.5 mph and increased speed by 0.5 mph each minute. Expired gases, HR, overall RPE (RPE-O), legs only RPE (RPE-L), and RER were assessed. Data were analysed using dependent t-tests. Walk Max and Run Max protocols yielded results indicating maximal effort. VO2 was higher for the Run Max protocol (p < .05; ES = 0.4). RPE-L was higher for the Walk Max protocol (p < .05; ES = 0.4). RPE-O was not different between protocols (p > .05). RER was also higher for the Walk Max protocol (p < .05; ES = 0.7). Total exercise time for both protocols was similar (p > .05). Max protocols delivering work by walking and running are both viable and provide options to suit the circumstances and/or preferences of the patient/client. Walk and run protocols can be appropriate for young, healthy, and active individuals. Walk protocols may limit participant anxiety related to falls and thus has the potential to increase exercise self-efficacy. Walk protocols are also an excellent choice when the participant cannot or should not perform a run-based protocol.
American College of Sports Medicine. (2018). ACSM's guidelines for exercise testing and prescription (10th ed.). Philadelphia, PA: Wolters Kluwer.
Balke, B., & Ware, R.W. (1959). An experimental study of physical fitness of Air Force personnel. US Armed Forces Med J., 10, 675-688.
Banerjee, A., Newman, D.R., Van den Bruel, A., & Heneghan, C. (2012). Diagnostic accuracy of exercise stress testing for coronary artery disease: a systematic review and meta- analysis of prospective studies. Int J Clinl Pract, 66(5), 477-492. https://doi.org/10.1111/j.1742-1241.2012.02900.x
Beltz, N.M., Gibson, A.L., Janot, J.M., Kravitz, L., Mermier, C.M., & Dalleck, L.C. (2016). Graded exercise testing protocols for determination of VO2max: historical perspectives, progress, and future considerations. J Sports Med, 2016, 1-12. https://doi.org/10.1155/2016/3968393
Bruce, R.A., Blackmon, J.R., Jones, J.W., & Strait, G. (1963). Exercise testing in adult normal subjects and cardiac patients. Pediatrics, 32(4), 742-756.
Borg, G. (1998). Borg's perceived exertion and pain scales. Champaign, IL: Human Kinetics.
Cohen, J. (1992). A power primer. Psychol Bull, 112, 155-159. https://doi.org/10.1037/0033-2909.112.1.155
Ellestad, M.H., Allen, W., Wan, M.C., & Kemp, G.L. (1969). Maximal treadmill stress testing for cardiovascular evaluation. Circulation, 39, 517-522. https://doi.org/10.1161/01.CIR.39.4.517
Haggerty, M., Dickin, D.C., Popp, J., & Want, H. (2014). The influence of incline walking on joint mechanics. Gait Posture, 39(4), 1017-1021. https://doi.org/10.1016/j.gaitpost.2013.12.027
Hanson, N.J., Scheadler, C.M., Lee, T.L., Neuenfeldt, N.C., Michael, T.J., & Miller, M.G. (2016). Modality determines VO2max achieved in self-paced exercise tests: validation with the Bruce protocol. Eur J Appl Physiol, 116, 1313-1319. https://doi.org/10.1007/s00421-016-3384-0
Hialt, W.R., Wolfel, E.E., Meier, R.H., & Regensteiner, J.G. (1994). Superiority of treadmill walking exercise versus strength training for patients with peripheral artery disease: Implications for the mechanism of the training response. Circulation, 90(4), 1866-1874. https://doi.org/10.1161/01.CIR.90.4.1866
Kenney, W.L., Wilmore, J.H., & Costill, D.L. (2015). An Introduction to Exercise and Sport Physiology. Physiology of Sport and Exercise, (6th ed., pp. 1-23). Human Kinetics.
Kilpatrick, M. W., Kraemer, R.R., Quigley, E.J., Mears, J.L., Powers, J.M., Dedea, A.J., & Ferrer, N.F. (2009). Heart Rate and metabolic responses to moderate-intensity aerobic exercise: a comparison of graded walking and ungraded jogging at a constant perceived exertion. J Sport Sci, 27(5), 509-516. https://doi.org/10.1080/02640410802668650
Mauger, A.R & Sculthorpe, N. (2012). A new VO2max protocol allowing self-pacing in maximal incremental exercise. Br J Sports Med, 46(1), 59-63. https://doi.org/10.1136/bjsports-2011-090006
Moreira-da-Costa, M., Russo, A.K, Picarro, I.C, Barros Neto, T.L., Silva, A.C., & Tarasantchi, J. (1989). Oxygen consumption and ventilation during constant-load exercise in runners and cyclists. J Sport Med Phys Fit, 29(1), 36-44.
Muscat, K.M., Kotrach, H.G., Wilkinson-Maitland, C.A., Schaeffer, M.R., Mendonca, C.T., & Jensen, D. (2015). Physiological and perceptual responses to incremental exercise testing in healthy men: effect of exercise test modality. Appl Physiol Nutr Me, 40(11), 1199-1209. https://doi.org/10.1139/apnm-2015-0179
Myers, J., Buchanan, N., Walsh, D., Kraemer, M., McAuley, P., Hamilton-Wessler, M., & Froelicher, V. (1991). Comparison of the ramp versus standard exercise protocols. J Am Coll Cardiol, 17(6), 1334-1342. https://doi.org/10.1016/S0735-1097(10)80144-5
Naughton, J. (1978). The national exercise and heart disease project: development, recruitment, and implementation. Cardiovasc Clin, 9(3), 205-222.
Noakes, T.D. (2008). Testing for maximum oxygen uptake has produced a brainless model of human exercise performance. Br J Sports Med, 42, 551-555. https://doi.org/10.1136/bjsm.2008.046821
Pollock, M.L., Bohannon, R.L., Cooper, K.H., Ayres, J.J., Ward, A., White, S.R., & Linnerud, A.C. (1976). A comparative analysis of four protocols for maximal treadmill stress testing. Am Heart J, 92(1), 39-46. https://doi.org/10.1016/S0002-8703(76)80401-2
Shephard, RJ. (2009). Is the measurement of maximal oxygen uptake passe? Br J Sports Med, 43, 83-85. https://doi.org/10.1136/bjsm.2008.052506
Silder, A., Besier, T., & Delp, S. L. (2012). Predicting the metabolic cost of incline walking from muscle activity and walking mechanics. J Biomech, 45(10), 1842-1849. https://doi.org/10.1016/j.jbiomech.2012.03.032
Swain, D.P., Kelleran, K.J., Graves, M.S., & Morrison, S. (2016). Impact forces of walking and running at the same intensity. J Strength Cond Res, 30(4), 1042-1049. https://doi.org/10.1519/JSC.0000000000001185
Wolthuis, R.A., Froelicher Jr, V.F., Fischer, J., Noguera, I., Davis, G., Stewart, A.J., & Triebwasser, J.H. (1977). New practical treadmill protocol for clinical use. Am J Cardiol, 39(5), 697-700. https://doi.org/10.1016/S0002-9149(77)80131-8
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