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European Journal of Applied Physiology

, Volume 112, Issue 12, pp 4183–4185 | Cite as

Attempting to better define “intensity” for muscular performance: is it all wasted effort?

  • J. FisherEmail author
  • D. Smith
Letter to the Editor

Dear Editor,

We read with interest the recent publication “Muscle activations under varying lifting speeds and intensities during bench press” (Sakamoto and Sinclair 2012). In the title and throughout this paper, the term intensity is used. We suggest that this usage is inaccurate, both here and more widely, with reference to the percentage of one repetition maximum (%1RM), e.g. the higher the %1RM, the higher the intensity (Sakamoto and Sinclair 2012). However, %1RM is simply a reference to load. Authors have attempted to justify this use (e.g. Fry 2004; Willardson and Burkett 2008) by pointing out that intensity is a common term for %1RM. A major problem with this argument is the inability of this term to accommodate effort, load, repetitions, inter-individual genetic influences such as muscle fiber type and repetition duration. This letter intends to address these issues and more accurately define potentially confusing terminology.

Effort

Within the area of cardiovascular or aerobic...

Keywords

Muscle Fiber Type Bench Press Motor Unit Recruitment Term Intensity Relative Load 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Conflict of interest

The authors are not aware of any conflicts of interest.

References

  1. Carpinelli R, Otto RM, Winett RA (2004) A critical analysis of the ACSM position stand on resistance training: insufficient evidence to support recommended training protocols. J Exerc Physiol 7:1–60Google Scholar
  2. Douris PC, White BP, Cullen RR et al (2006) The relationship between maximal repetition performance and muscle fibre type as estimated by non-invasive techniques in the quadriceps of untrained women. J Strength Cond Res 20:699–703PubMedGoogle Scholar
  3. Fisher J, Steele J, Bruce-Low S, Smith D (2011) Evidence-based resistance training recommendations. Med Sport 15(3):147–162CrossRefGoogle Scholar
  4. Fry AC (2004) The role of resistance exercise intensity on muscle fibre adaptations. Sports Med 34:663–679PubMedCrossRefGoogle Scholar
  5. Hoeger WW, Barette SL, Hale DF et al (1987) Relationship between repetitions and selected percentages of one-repetition maximum. J Appl Sport Sci Res 1:11–13Google Scholar
  6. Hoeger WW, Hopkins DR, Barette SL et al (1990) Relationship between repetitions and selected percentages of one-repetition maximum: a comparison between untrained and trained males and females. J Strength Cond Res 4:46–54Google Scholar
  7. Lachance PF, Hortobagyi T (1994) Influence of cadence on muscular performance during push-up and pull-up exercises. J Strength Cond Res 8:76–79Google Scholar
  8. Miller AEJ, MacDougall JD, Tarnopolosky MA, Sale DG (1993) Gender differences in strength and muscle fiber characteristics. Eur J Appl Physiol Occup Phys 66(3):254–262CrossRefGoogle Scholar
  9. Morrissey MC, Harman EA, Frykman PN et al (1998) Early phase differential effects of slow and fast barbell squat training. Am J Sports Med 26:221–230PubMedGoogle Scholar
  10. Nelson FE, Ortega JD, Jubrias SA et al (2011) High efficiency in human muscle an anomaly and an opportunity? J Exp Biol 214:2649–2653PubMedCrossRefGoogle Scholar
  11. Sakamoto A, Sinclair PJ (2006) Effect of movement velocity on the relationship between training load and the number of repetitions of bench press. J Strength Cond Res 20:523–527PubMedGoogle Scholar
  12. Sakamoto A, Sinclair PJ (2012) Muscle activations under varying lifting speeds and intensities during bench press. Eur J Appl Physiol 112:1015–1025PubMedCrossRefGoogle Scholar
  13. Sale DG (1987) Influence of exercise and training on motor unit activation. Exerc Sport Sci Rev 15:95–151PubMedCrossRefGoogle Scholar
  14. Scott CB (2012) The effect of time-under-tension and weight lifting cadence on aerobic, anaerobic, and recovery energy expenditures: 3 submaximal sets. Appl Physiol Nutr Metab 37:252–256PubMedCrossRefGoogle Scholar
  15. Shimano T, Kraemer WJ, Spiering BA et al (2006) Relationship between the number of repetitions and selected percentages of one-repetition maximum in free weight exercises in trained and untrained men. J Strength Cond Res 20:819–823PubMedGoogle Scholar
  16. Westing SH, Cresswell AG, Thorstensson A (1991) Muscle activation during maximal voluntary eccentric and concentric knee extension. Eur J Appl Physiol 62:104–108CrossRefGoogle Scholar
  17. Willardson JM, Burkett LN (2008) The effect of different rest intervals between sets on volume components and strength gains. J Strength Cond Res 22:146–152PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Department of Health, Exercise and Sport ScienceSouthampton Solent UniversitySouthamptonUK
  2. 2.Manchester Metropolitan UniversityCreweUK

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