Six-months CrossFit training improves metabolic efficiency in young trained men

  1. Camacho-Cardeñosa, Alba 1
  2. Timón, Rafael 1
  3. Camacho-Cardeñosa, Marta 1
  4. Guerrero-Flores, Samantha 1
  5. Olcina, Guillermo 1
  6. Marcos-Serrano, Marta 1
  1. 1 Universidad de Extremadura
    info

    Universidad de Extremadura

    Badajoz, España

    ROR https://ror.org/0174shg90

Revista:
Cultura, ciencia y deporte

ISSN: 1696-5043

Año de publicación: 2020

Volumen: 15

Número: 45

Páginas: 421-427

Tipo: Artículo

DOI: 10.12800/CCD.V15I45.1519 DIALNET GOOGLE SCHOLAR lock_openDialnet editor

Otras publicaciones en: Cultura, ciencia y deporte

Resumen

El objetivo del estudio fue examinar los efectos de un período de entrenamiento de 6 meses de CrossFit sobre el rendimiento físico, eficiencia metabólica, composición corporal y parámetros bioquímicos. Diez practicantes habituales de CrossFit fueron evaluados antes y después de 6 meses de entrenamiento. Medidas antropométricas, sanguíneas y parámetros de rendimientos fueron medidos a través de test funcionales y un test incremental. Tras seis meses de CrossFit, el ratio de oxidación y porcentaje de energía de grasa obtenido se incrementó significativamente (+221.43%; p=.043 and +222.39%; p=.043 respectivamente) en detrimento de los valores de hidratos de carbono en valores máximos (-47.35%; p=.043 and -34.41%; p=.043 respectivamente). En la zona de máxima oxidación de grasa, el volumen de oxígeno máximo incrementó (+20.3%; p=.043). El ratio de oxidación de grasa aumentó significativamente en detrimento del ratio de carbohidratos (+62.75% vs -27.67%; p=.043). Los valores de lactato deshidrogrenasa incrementaron significativamente (+27.13%; p= .043). En conclusión, seis meses de CrossFit mejora la eficiencia metabólica en cuanto al ratio de oxidación de grasa, sin conllevar daños musculares.

Referencias bibliográficas

  • Bellar, D., Hatchett, A., Judge, L. W., Breaux, M. E., & Marcus, L. (2015). Herthe relationship of aerobic capacity, anaerobic peak power and ex¬perience to performance in CrossFit exercise. Biology of Sport. https:// doi.org/10.5604/20831862.1174771
  • Bergeron, B. (2011). The deeper side of coaching. CrossFit Journal, 1–5.
  • Bouchard, C., Bray, G. A., & Hubbard, V. S. (1990). Basic and clinical aspects of regional fat distribution. In American Journal of Clinical Nutrition. https://doi.org/10.1093/ajcn/52.5.946
  • Bouchard, Claude, Depres, J. ‐P, & Tremblay, A. (1993). Exercise and Obe¬sity. Obesity Research. https://doi.org/10.1002/j.1550-8528.1993. tb00603.x
  • Claudino, J. G., Gabbett, T. J., Bourgeois, F., Souza, H. de S., Miranda, R. C., Mezêncio, B., … Serrão, J. C. (2018). CrossFit Overview: System-atic Review and Meta-analysis. Sports Medicine - Open. https://doi. org/10.1186/s40798-018-0124-5
  • Cohen, J. (1988). Statistical power for the social sciences. Hillsdale, NJ: Laurence Erlbaum and Associates.
  • Eather, N., Morgan, P. J., & Lubans, D. R. (2016). Improving health-relat¬ed fitness in adolescents: the CrossFit TeensTM randomised controlled trial. Journal of Sports Sciences. https://doi.org/10.1080/02640414.2 015.1045925
  • Hubner-Wozniak, E., Lutoslawska, G., Sendecki, W., Dentkowski, W., Drozd, J., & Sawicka, T. (1995). Changes in the activities of select¬ed marker enzymes in plasma of recreational bodybuilders. Biology of Sport.
  • Jastrzebski, Z. (2006). Changes of chosen blood parameters in football players in relation to applied training loads during competition. Biol¬ogy of Sport.
  • Kubukeli, Z. N., Noakes, T. D., & Dennis, S. C. (2002). Training tech¬niques to improve endurance exercise performances. Sports Medicine. https://doi.org/10.2165/00007256-200232080-00002
  • Lutosławska, G., Sendecki, W., Wojcieszak, I., & Pośnik, J. (1988). Effects of Exercise on Plasma Creatine Kinase and Lactate Dehydrogenase Activity in Women Kayak Paddlers. Biology of Sport, 187–193.
  • Meyer, J., Morrison, J., & Zuniga, J. (2017). The Benefits and Risks of CrossFit: A Systematic Review. Workplace Health and Safety. https:// doi.org/10.1177/2165079916685568
  • Murawska-Cialowicz, E., Wojna, J., & Zuwala-Jagiello, J. (2015). Crossfit training changes brain-derived neurotrophic factor and irisin levels at rest, after wingate and progressive tests, and improves aerobic capac¬ity and body composition of young physically active men and women. Journal of Physiology and Pharmacology.
  • Myers, J., Prakash, M., Froelicher, V., Do, D., Partington, S., & Edwin Atwood, J. (2002). Exercise capacity and mortality among men re-ferred for exercise testing. New England Journal of Medicine. https:// doi.org/10.1056/NEJMoa011858
  • Poston, W. S. C., Haddock, C. K., Heinrich, K. M., Jahnke, S. A., Jitnarin, N., & Batchelor, D. B. (2016). Is High-Intensity Functional Training (HIFT)/CrossFit Safe for Military Fitness Training? Military Medicine. https://doi.org/10.7205/milmed-d-15-00273
  • Rodas, G., Ventura, J. L., Cadefau, J. A., Cussó, R., & Parra, J. (2000). A short training programme for the rapid improvement of both aero¬bic and anaerobic metabolism. European Journal of Applied Physiology. https://doi.org/10.1007/s004210000223
  • Smith, M. M., Sommer, A. J., Starkoff, B. E., & Devor, S. T. (2013). Cross¬fit-based high-intensity power training improves maximal aerobic fitness and body composition. Journal of Strength and Conditioning Research. https://doi.org/10.1519/JSC.0b013e318289e59f
  • Van Loon, L. J. C., Greenhaff, P. L., Constantin-Teodosiu, D., Saris, W. H. M., & Wagenmakers, A. J. M. (2001). The effects of increasing exercise intensity on muscle fuel utilisation in humans. Journal of Physiology. https://doi.org/10.1111/j.1469-7793.2001.00295.x