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Standardized vs. Relative Intensity in CrossFit.
Oliver-López, Alejandro; García-Valverde, Adrián; Sabido, Rafael.
Afiliación
  • Oliver-López A; Sport Research Center, Miguel Hernandez University of Elche, Elche, Spain.
  • García-Valverde A; Faculty of Health Sciences, Isabel I of Castile International University, Burgos, Spain.
  • Sabido R; Sport Research Center, Miguel Hernandez University of Elche, Elche, Spain.
Int J Sports Med ; 45(4): 301-308, 2024 Apr.
Article en En | MEDLINE | ID: mdl-38109900
ABSTRACT
CrossFit is characterized by being a standardized training program that improves physical performance through the provision of several stimuli regardless of the participant's strength level. This study aimed to compare the acute response in total repetitions as a measurement of performance, jump ability, physiological demand (heart rate and blood lactate), and perceived effort considering the participants' strength level with individualized intensity in CrossFit. Thirty-five participants were assessed and asked to participate on two separate days in a standardized and relative 'As Many Repetitions As Possible' (AMRAP) CrossFit circuit. Both AMRAPs comprised strength, gymnastic and aerobic exercises, although only strength was individualized according to the participant's level. Before the statistical analysis, participants were allocated to higher- or lower-strength groups following the one-repetition maximum-bodyweight ratio in the push press exercise. Results support the existence of a strong relationship between strength level and total repetitions in both AMRAPs. In addition, differences in total repetitions and rate of perceived exertion between strength groups are discarded when AMRAP intensity is individualized while physiological demand and jump ability are maintained. Thus, the higher-strength participants may benefit from similar responses with a lower number of repetitions. Therefore, CrossFit trainers should be encouraged to prescribe strength tasks based on the percentage of 1RM for every training.
Asunto(s)

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Ejercicio Físico / Entrenamiento de Fuerza Límite: Humans Idioma: En Revista: Int J Sports Med / Int. j. sports med / International journal of sports medicine Año: 2024 Tipo del documento: Article País de afiliación: España

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Ejercicio Físico / Entrenamiento de Fuerza Límite: Humans Idioma: En Revista: Int J Sports Med / Int. j. sports med / International journal of sports medicine Año: 2024 Tipo del documento: Article País de afiliación: España