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Related Experiment Videos

Construct validity of the OMNI resistance exercise scale.

Kristen M Lagally1, Robert J Robertson

  • 1School of Kinesiology and Recreation, Illinois State University, Normal, Illinois 61790, USA. kmlagal@ilstu.edu

Journal of Strength and Conditioning Research
|May 12, 2006
PubMed
Summary

The Adult OMNI Perceived Exertion Scale for Resistance Exercise (OMNI-RES) accurately measures exertion during resistance training. This scale is comparable to the Borg RPE scale, offering interchangeable use for assessing workout intensity.

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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Measurement in Sport

Background:

  • Assessing perceived exertion is crucial for monitoring resistance exercise intensity.
  • The Adult OMNI Perceived Exertion Scale for Resistance Exercise (OMNI-RES) is a tool used for this purpose.
  • Understanding its construct validity against established measures is essential.

Purpose of the Study:

  • To examine the construct validity of the OMNI-RES scale.
  • To compare OMNI-RES ratings with the Borg 15-category RPE scale during resistance exercise.
  • To determine if the OMNI-RES can be used interchangeably with the Borg scale.

Main Methods:

  • Forty participants (20 men, 20 women) performed knee extension exercises at varying intensities (40-90% of 1RM).

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  • Ratings of perceived exertion (RPE) were collected using both the OMNI-RES and the Borg RPE scale immediately after each repetition.
  • Regression analysis was used to correlate RPE scores from both scales.

    • Main Results:

    • A strong, positive, and linear relationship was found between OMNI-RES and Borg RPE scale scores for both male and female participants.
    • Validity coefficients ranged from r = 0.94 to 0.97, indicating high construct validity.
    • The OMNI-RES demonstrated high agreement with the Borg RPE scale.

    Conclusions:

    • The OMNI-RES scale exhibits strong construct validity for measuring perceived exertion during resistance exercise.
    • The OMNI-RES and Borg RPE scale can be used interchangeably to assess exertion in resistance training.
    • This finding supports the use of the OMNI-RES as a reliable tool in exercise science research and practice.