Validation of Individual Calibration Procedure in Prediction of One Repetition Maximum in Bench Press

Conference paper
Part of the IFMBE Proceedings book series (IFMBE, volume 20)

Abstract

In literature various studies about application of accelerometer sensors in analysis of weight lifting performance can be found. One specific application is prediction of one repetition maximum (1-RM) from submaximal lift, where the 1-RM is estimated on the basis of submaximal weight and acceleration values occuring during the lift. The prediction accuracy has been found to be good at a large subject group level. However, differences between individual subjects may result in inaccurate prediction in occasional cases. Therefore utilization of anthropometric data or information of weight lifting experience of the individual could improve the accuracy of the prediction. To evaluate this, in this study individual calibration of the prediction algorithm was evaluated in case of accelerometer based 1-RM prediction in bench press. The calibration procedure was tested with a total of 30 subjects (15 females, 15 males). The data analysis showed excellent correlation coefficient R of 0,99 (p<0,001) between the predicted 1-RM and the actual 1-RM in the validation phase of the study. Relative absolute error of 1-RM was 4,6 % for bench press. Without use individual calibration the correlation coefficient would have been 0,99 (p<0,001) and the relative absolute error would have been 9,2 %. The results clearly show the individual calibration increase significantly the 1-RM prediction accuracy.

Keywords

1-RM accelerometer calibration 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Berger RA (1961) Determination of the resistance load for 1-RM and 10-RM. J Assoc Physi Ment Rehab 15, 1961, 108–110.Google Scholar
  2. 2.
    Chapman PP, Whitehead JR, Binkert RH (1998) The 225-lb Reps-to-Fatigue Test as a Submaximal Estimate of 1-RM Bench Press Performance in Col-lege Football Players. J Strength Cond Res. 12(4), 1998, 258–261.Google Scholar
  3. 3.
    Horvat M, Ramsey V, Franklin C, Gavin C, Palumbo T and Glass LA (2003) A method for predicting maximal strength in collegiate women athletes. J Strength Cond Res. 17(2), 2003, 324–328.Google Scholar
  4. 4.
    McArdle WD, Katch FI and Katch VL (1996) Exercise physiology Fourth Edition, Williams & Wilkins, Baltimore, 1996, 418, 571Google Scholar
  5. 5.
    Kim PS, Mayhew JL and Peterson DF (2002) A modified YMCA bench press test as a predictor of 1 repetition maximum bench press strength. J Strength Cond Res. 16(3), 2002, 440–445.Google Scholar
  6. 6.
    Mayhew JL, Ball TE and Arnold MD (1989) Prediction of 1-RM bench press from submaximal bench press performance in college males and females. J Appl Sports Sci Res, 53, 1989, S73.Google Scholar
  7. 7.
    Hoeger WWK, Hopkins DR, Barette SL and Hale DF (1990) Relationship between repetitions and selected percentages of one repetition maximum: A comparison between untrained and trained males and females. Journal of Applied Sport Science Research, 4, 1990, 47–54.Google Scholar
  8. 8.
    Cummings B, Finn KJ (1998) Estimation of a One Repetition Maximum Bench Press for Untrained Women. J Strength Cond Res. 1998, 12(4), 1998, 262–265.Google Scholar
  9. 9.
    Hannula M, Rontu J-P and Jauhiainen J (2007) Prediction of One Repetition Maximum in Weight Lifting with Multilinear Regression Model. Proceedings of the Fifth IASTED International Conference on Biomedical Engineering.-Insbruck: IASTED, 2007.Google Scholar
  10. 10.
    Hannula M (2007) Evaluation method of a sports performance. Patent application n:o WO2007036611, World Intellectual Property Organization, 2007.Google Scholar
  11. 11.
    Salmi J, Rontu J-P, Hannula M, Leskinen S and Linnamo V (2007) 1-RM bench press performance estimated with accelerometer method. Proceedigns of the 12th Annual Congress of the ECSS, 11–14 July 2007, Jyväskylä, Finland.Google Scholar
  12. 12.
    Hannula M, Jauhiainen J and Äijälä S (2006) One repetition maximum prediction from a submaximal performance in weight lifting. Proceedings of 5th World Congress of Biomechanics, Munich, Germany, 2006.Google Scholar
  13. 13.
    McArdle WD, Katch FI and Katch VL (2000) Essentials of Exercise Physiology, Second Edition, Lippincott Williams & Wilkins, Baltimore, 2000, 394–399, 559Google Scholar
  14. 14.
    Rontu J-P (2007) 1-RM Bench press performance estimated with a new accelerometer method, Master’s Thesis, University of Jyväskylä, 2007.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  1. 1.Medical Engineering R&D CenterOulu University of Applied SciencesOuluFinland

Personalised recommendations