Abstract

We examined the energy costs of different resistance training protocols where exercise and recovery periods were equated: 48 total seconds of exercise and 210 seconds of between-set recovery. Two separate investigations were carried out at 65% of a 1 repetition maximum (1RM): back squat (7 men, 3 women) and bench press (9 men). Lifting cadence for concentric and eccentric phases was set at 1.5 sec each with 30 sec between-set recovery periods for the 8 sets, 2 reps protocol (sets) and a 3 min and 30 sec between-set recovery period for the 2 sets, 8 reps protocol (reps). The amount of oxygen consumed during lifting and between-set recovery periods was significantly greater for sets vs. reps protocol for both the back squat (+41%) and bench press (+27%) (p = 0.0001). Moreover, the total aerobic cost including the after-lifting excess post-exercise oxygen consumption (EPOC) was larger for the increased sets protocol for both the squat (+27%, p = 0.01) and bench press (+29%, p = 0.04). Total energy costs - aerobic plus anaerobic, exercise and recovery - were not different among sets or reps protocols. We conclude that a greater volume of oxygen is consumed with a lower repetition, increased number of sets resistance training protocol. We suggest that more recovery periods promote a greater potential for fat oxidation.

Keywords

Muscle metabolism Energy costs Intermittent exercise Fat oxidation

References

  1. S.H. Boutcher, High-intensity intermittent exercise and fat loss, Journal of Obesity, 2011 (2011) 868305.
  2. F. Maillard, B. Pereira, N. Boisseau, Effect of high-intensity interval training on total, abdominal and visceral fat mass: a meta-analysis. Sports Medicine, 48 (2018) 269-288.
  3. C.B. Scott, Oxygen costs peak after resistance exercise sets: a rational for the importance of recovery over exercise, Journal of Exercise Physiology, 15 (2012) 1-8.
  4. W.D. McArdle, G.F. Foglia, Energy cost and cardiorespiratory stress of isometric and weight training exercises, Journal of Sports Medicine and Physical Fitness, 9 (1969) 23-30.
  5. G. Haff, N.T. Triplet, (2015). Essentials of Strength Training and Conditioning (4th ed.). Human Kinetics, Champaign, IL.
  6. C.B. Scott, The effect of time-under-tension and weight lifting cadence on aerobic, anaerobic, and recovery energy expenditures: 3 sets, Applied Physiology, Nutrition, and Metabolism, 37 (2012) 252-256.
  7. C.B. Scott, A. Luchini, A. Knausenberger, A. Steitz, Total energy costs – aerobic and anaerobic, exercise and recovery – of five resistance exercises, Central European Journal of Sport Sciences and Medicine, 7 (2014) 53-59.
  8. J.M. McBride, G.O. McCauley, P. Cormie, J.L. Nuzzo, M.J. Cavill, N.T. Triplett, Comparison of methods to quantify volume during resistance exercise, Journal of Strength and Conditioning Research, 23 (2009) 106-110.
  9. E.M. Gorostiaga, I. Navarro-Amezqueta, R. Cusso, Y. Hellstern, J.A.L. Calbet, M. Guerrero, C. Granados, M. Gonzalez-Izal, J. Ibanez, M. Izquierdo, Anaerobic energy expenditure and mechanical efficiency during exhaustive leg press exercise, PLoS One 5(10) (2010) e13486.
  10. R.H.T. Edwards, D.K. Hill, M. McDonnell, Myothermal and intramuscular pressure measurements during isometric contractions of the human quadriceps muscle, Journal of Physiology, 224 (1972) 58P-59P.
  11. T. Tetsuro, S. Uchiyama, T. Tamura, S. Nakano, Changes in muscle oxygenation during weight-lifting exercise, European Journal of Applied Physiology and Occupational Physiology, 68 (1994) 465-469.
  12. C.B. Scott, (2018). How to Maximize the Caloric Costs of Exercise. Archway Publ. Bloomington, IN.
  13. G.R. Hunter, R.L. Weinsier, M.M. Bamman, D.E. Larson, A role for high intensity exercise on energy balance and weight control, Int J Obesity, 22 (1998) 489-493.