European Journal of Applied Physiology

, Volume 113, Issue 6, pp 1565–1573

Maximal strength training improves work economy, rate of force development and maximal strength more than conventional strength training

  • Jørn Heggelund
  • Marius S. Fimland
  • Jan Helgerud
  • Jan Hoff
Original Article

DOI: 10.1007/s00421-013-2586-y

Cite this article as:
Heggelund, J., Fimland, M.S., Helgerud, J. et al. Eur J Appl Physiol (2013) 113: 1565. doi:10.1007/s00421-013-2586-y

Abstract

This study compared maximal strength training (MST) with equal training volume (kg × sets × repetitions) of conventional strength training (CON) primarily with regard to work economy, and second one repetition maximum (1RM) and rate of force development (RFD) of single leg knee extension. In an intra-individual design, one leg was randomized to knee-extension MST (4 or 5RM) and the other leg to CON (3 × 10RM) three times per week for 8 weeks. MST was performed with maximal concentric mobilization of force while CON was performed with moderate velocity. Eight untrained or moderately trained men (26 ± 1 years) completed the study. The improvement in gross work economy was −0.10 ± 0.08 L min−1 larger after MST (P = 0.011, between groups). From pre- to post-test the MST and CON improved net work economy with 31 % (P < 0.001) and 18 % (P = 0.01), respectively. Compared with CON, the improvement in 1RM and dynamic RFD was 13.7 ± 8.4 kg (P = 0.002) and 587 ± 679 N s−1 (P = 0.044) larger after MST, whereas isometric RFD was of borderline significance 3,028 ± 3,674 N s−1 (P = 0.053). From pre- to post-test, MST improved 1RM and isometric RFD with 50 % (P < 0.001) and 155 % (P < 0.001), respectively whereas CON improved 1RM and isometric RFD with 35 % (P < 0.001) and 83 % (P = 0.028), respectively. Anthropometric measures of quadriceps femoris muscle mass and peak oxygen uptake did not change. In conclusion, 8 weeks of MST was more effective than CON for improving work economy, 1RM and RFD in untrained and moderately trained men. The advantageous effect of MST to improve work economy could be due to larger improvements in 1RM and RFD.

Keywords

Knee-extensionQuadriceps femoris1RMPeak forcePowerEndurance performance

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Jørn Heggelund
    • 1
    • 2
    • 3
  • Marius S. Fimland
    • 4
    • 5
  • Jan Helgerud
    • 6
    • 7
    • 8
  • Jan Hoff
    • 6
    • 9
  1. 1.Department of Neuroscience, Faculty of MedicineNorwegian University of Science and TechnologyTrondheimNorway
  2. 2.Department of Research and Development (AFFU), Division of PsychiatrySt. Olavs University HospitalTrondheimNorway
  3. 3.Department of Østmarka, Division of PsychiatrySt. Olavs University HospitalTrondheimNorway
  4. 4.Department of Public Health and General Practice, Faculty of MedicineNorwegian University of Science and TechnologyTrondheimNorway
  5. 5.Hysnes Rehabilitation CenterSt. Olavs University HospitalTrondheimNorway
  6. 6.Department of Circulation and Medical Imaging, Faculty of MedicineNorwegian University of Science and TechnologyTrondheimNorway
  7. 7.Hokksund Medical Rehabilitation CentreHokksundNorway
  8. 8.Department of Sports and Outdoor Life StudiesTelemark University CollegeNorway
  9. 9.Department of Physical Medicine and RehabilitationSt. Olavs University HospitalTrondheimNorway