Total energy costs of 3 Tabata-type calisthenic squatting routines: Isometric, Isotonic and Jump
Introduction: We examined the total energy costs – aerobic and anaerobic, exercise and recovery – of three Tabata-style squat routines: isotonic, isometric and plyometric (jump). Our intent was to determine which format elicited the greatest overall cost.
Materials and Methods: Four male and three female subjects volunteered (23.7 ± 2.6 years, 170.1 ± 10.3 cm, 68.2 ± 14.6 kg). Isotonic and jump squats were completed in 20 second bouts at a cadence of 2 seconds per squat (10 repetitions each) followed by 10 seconds of recovery; isometric squats were held for the entirety of each 20 second exercise period followed by 10 seconds of recovery – exercise and recovery bouts were repeated 8 times for a total of 4 minutes.Results and Discussion: Jump squats had the greatest overall energy cost at 160.7 ± 56 kJ (38.4 ± 13.4 kcal) followed by isotonic squats at 112.4 ± 24 kJ (26.9 ± 5.7 kcal) ; there was no statistical difference between the two. Isometric squats at 62.4 ± 6 kJ (14.9 ± 1.4 kcal) were significantly lower than both isotonic and jump squats (p < 0.05). From an exercise program design standpoint isometric exercises do not appear to represent an appropriate format when attempting to maximize energy costs.
Boutcher, S.H. High-intensity intermittent exercise and fat loss. (2011). J Obesity (article ID 868305).
De Feo, P. Is high-intensity exercise better than moderate-intensity exercise for weight loss? Nutr Metab Cardiovasc Dis. (2013). 23:1037-1042.
Emberts, T., Porcari, J., Doberstein, S., Steffen, J. and Foster, C. (2013). Exercise intensity and energy expenditure of a Tabata workout. J Sports Sci Med. 12: 612-613.
Elder, C.P., Mahoney, E.T., Black, C.D., Slade, J.M. and Dudley, G.A. (2006). Oxygen cost of dynamic or isometric exercise relative to recruited muscle mass. Dyn Med. 5: 9.
Heinrich, K.M., Patel, P.M., O’Neal, J.L. and Heinrich, B.S. (2014). High-intensity compared to moderate-intensity training for exercise initiation, enjoyment, adherence, and intentions: an intervention study. BMC Public Health. 14:789.
Hunter, G. R., Weinsier, R.I., Bamman, M.M. and Larson, D.E. (1998). A role for high intensity exercise on energy balance and weight control. Int J Obesity. 22:489-493.
Kushmerick, M.J. (1983). Energetic of muscle contraction. In, Handbook of Physiology, Section 10: Skeletal Muscle (American Physiological Society). Suppl 27: 189-236.
Marcora, S. (2009). Perception of effort during exercise is independent of afferent feedback from skeletal muscles, heart and lungs. J Appl Physiol. 106: 2060-2062.
McArdle, W.D. and Foglia, G.F. (1969). Energy cost and cardiorespiratory stress of isometric and weight training exercises. J Sports Med Phys Fit. 9: 23-30, 1969.
Newham, D.J., Jones, D.A., Turner, D.L. and McIntyre, D. (1995). The metabolic cost of different types of contractile activity of the human adductor pollicis muscle. J Physiol. 488: 815-819.
Olson, M. (2013). Tabata interval exercise: energy expenditure and post-exercise responses. Med Sci Sports Exerc. 45: S420.
Russ, D.W., Elliott, M.A., Vandenborne, K., Walter, G.A. and Binder-Macleod, S.A. (2002). Metabolic costs of isometric force generation and maintenance of human skeletal muscle. Amer J Physiol. 282: E448-473.
Scott, C.B. (2011). Quantifying the immediate recovery energy expenditure of resistance training. J Strength Cond Res. 25: 1159-1163.
Tabata, I., Irisawa, K., Kouzaki, M., Nishimura, K., Ogita, F. and Miyachi, M. (1997). Metabolic profile of high intensity intermittent exercises. Med Sci Sports Exerc. 29: 390-395.