Effort Index as a Novel Variable for Monitoring the Level of Effort During Resistance Exercises

Journal of Strength and Conditioning Research
David Rodríguez-RosellJuan J González-Badillo

Abstract

Rodríguez-Rosell, D, Yáñez-García, JM, Torres-Torrelo, J, Mora-Custodio, R, Marques, MC, and González-Badillo, JJ. Effort index as a novel variable for monitoring the level of effort during resistance exercises. J Strength Cond Res 32(8): 2139-2153, 2018-This study aimed to analyze the acute mechanical and metabolic response to resistance exercise protocols (REPs) defined by 2 variables: the first repetition's mean velocity and the percentage of velocity loss (%VL) over the set. The product of these 2 variables was termed the effort index (EI) and was used as an indicator of the degree of fatigue induced during each REP. Twenty-one resistance-trained men (11 in full squat [SQ] and 10 in bench press [BP]) performed 16 REPs separated by 72 hours. Relative loads used (50, 60, 70, and 80% 1-repetition maximum) were determined from the load-velocity relationship for the SQ and BP, whereas volume was objectively determined using the %VL attained over the set (10, 20, 30, and 45% for SQ, and 15, 25, 40, and 55% for BP). Lactate concentration and velocity against the load that elicited a ∼1.00 m·s (V1 m·s load) were measured before and after each REP. Post-exercise velocity with the V1 m·s load and lactate concentration were significan...Continue Reading

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Citations

Oct 22, 2020·International Journal of Environmental Research and Public Health·Diogo L MarquesMário C Marques
Apr 27, 2021·International Journal of Sports Medicine·Carlos Rodriguez-LopezLuis M Alegre
Apr 9, 2021·Scandinavian Journal of Medicine & Science in Sports·David Rodríguez-RosellJuan José González-Badillo
Aug 8, 2021·International Journal of Environmental Research and Public Health·Manuel García-SilleroSalvador Vargas-Molina

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