1RM Estimation
One-repetition maximum (1RM) estimation is a method to predict an athlete's maximum strength in a given lift without performing an actual maximal single repetition. Developed systematically by Matt Brzycki (1993) and refined by numerous researchers, 1RM estimation uses submaximal loads and repetition performance to extrapolate a strength ceiling. Rather than exposing untrained individuals, older adults, or post-injury athletes to the stress and injury risk of true 1RM testing, estimation provides a safer, time-efficient alternative. Multiple prediction equations exist, with varying accuracy depending on population and lift type.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Brzycki, M. (1993). Strength testing: predicting a one-rep max from reps-to-fatigue. Journal of Physical Education, Recreation and Dance, 64(1), 88-90. · URL
- Reynolds, J. M., Gordon, T. J., & Robergs, R. A. (2006). Prediction of one repetition maximum strength from multiple repetition maximum testing and anthropometry. Journal of Strength and Conditioning Research, 20(3), 584-592. · DOI 10.1519/00124278-200608000-00020
- Mayhew, J. L., Johnson, B. D., LaMonte, M. J., Laubach, L. L., & Karg, K. (2008). Accuracy of prediction equations for determining 1-RM strength in apparently healthy adults. Journal of Sports Medicine and Physical Fitness, 48(4), 418-424. · URL
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