Lagally, K. M., & Costigan, E. M. (2003). The effect of anchoring procedures on ratings of perceived exertion during resistance exercise. Medicine and Science in Sports and Exercise, 35(5), Supplement abstract 310.

This study analyzed the effects of different anchoring procedures on active muscle ratings of perceived exertion during a leg extension exercise. Ss were assigned to either a physical (N = 7) or physical-cognitive (N = 7) anchoring group. Each S performed a 1 RM leg extension. In an experimental session, perceived exertion was rated at 40, 50, 60, 70, 80, and 90% of 1 RM. Ss in the physical group performed an unweighted exercise to establish the low anchor and a 1 RM to establish the high anchor. The physical-cognitive group established high and low anchors during a 1 RM task.

RPE increased as resistance increased. Once resistance reached 80% of 1 RM, RPE differed significantly between the two groups.

Implication. How reference criteria for exercise intensity is established affects intensity interpretations at high exertion levels (> 80% 1 RM) in resistance exercise.

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