Acute physiological responses during crossfit® workouts

  1. Fernández Fernández, Jaime 1
  2. Sabido Solana, Rafael 1
  3. Moya, Diego 2
  4. Sarabia Marin, Jose Manuel 1
  5. Moya Ramón, Manuel 1
  1. 1 Sports Research Centre, Miguel Hernandez University, Elche
  2. 2 Master in Sports Performance and Health, Miguel Hernandez University, Elche
Revista:
European Journal of Human Movement

ISSN: 0214-0071,  2386-4095

Año de publicación: 2015

Número: 35

Páginas: 114-124

Tipo: Artículo

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Otras publicaciones en: European Journal of Human Movement

Resumen

Los objetivos del estudio fueron describir la respuesta fisiológica y perceptiva aguda a dos rutinas de ejercicios diarios (WODs) de CrossFit® , investigando si las exigencias físicas de éstas cumplen con los criterios establecidos por la ACSM para mejorar y mantener la aptitud cardiovascular en adultos sanos. Metodología: diez voluntarios sanos (edad: 30±4.2 años) participaron en un estudio que incluyó un test incremental maximal y dos WODs de CrossFit® (“Fran” y “Cindy”). Se midieron consumos de oxígeno (VO2), frecuencias cardiacas (FC), lactato sanguíneo (LA) y escala de percepción del esfuerzo (RPE). Resultados: se encontraron diferencias (P<0.001; ES=1.0) entre los promedios de VO2 (34.4±3.5 vs. 29.1±1.1 ml·kg-1·min-1), %VO2max (66.2±4.8 vs, 56.7±6.2%) y EE (318.2±32.5 vs. 121.0±38.5 kcal·min-1; P<0.001; ES=3.8), siendo mayores los valores obtenidos con “Cindy”; mientras el porcentaje de tiempo por encima de 1 del cociente respiratorio fue mayor en “Fran” (76.0±29.7 vs, 47.7±21.4 %; P<0.05; ES=0.7). Conclusiones: las demandas fisiológicas agudas de las WODs analizadas, coinciden con las directrices de la ACSM de gasto energético e intensidad del ejercicio en adultos sanos, aunque debido a la altas intensidades registradas (90-95% de la FC máx; valores LA> 10 mmol-1; valores de RPE> 8), junto con la falta de investigación, hace que los criterios de seguridad estén por definir.

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