Caloric restriction (CR) results in fat loss; however, it may also result in
loss of muscle and thereby reduce strength and aerobic capacity (VO2max). These effects may not occur with exercise-induced weight loss (EX) because of the anabolic effects of exercise on heart and skeletal muscle. We tested the hypothesis that CR reduces muscle size and strength and VO2max while EX preserves or improves these parameters. Healthy 50- to 60-year-old men and women (BMI 23.5-29.9 kg/m(2)) were studied before and after 12 months of weight loss by CR (n=1 or EX (n=16). Lean mass was assessed by DXA, thigh muscle volume by MRI, isometric and isokinetic knee flexor strength by dynamometry, and treadmill VO2max by indirect calorimetry. Both interventions caused significant decreases in body weight (CR: -10.7+/-1.4%, EX: -9.5+/-1.5%) and lean mass (CR:-3.5+/-0.7%, EX: -2.2+/-0.8%), with no significant differences between groups. Significant decreases in thigh muscle volume (-6.9+/-0.8%) and composite knee flexion strength (-7.2+/-3%) occurred in the CR group only. Absolute VO2max decreased significantly in the CR group (-6.8+/-2.3%), whereas the EX group had significant increases in both absolute (+15.5+/-2.4%) and relative (+28.3+/-3.0%) VO2max. These data provide evidence that muscle mass and absolute physical work capacity decrease in response to 12 months of CR, but not in response to a similar weight loss induced by exercise. These findings suggest that during exercise-induced weight loss, the body adapts to maintain or even
enhance physical performance capacity. Key words: diet, training, energy
deficit, cardiovascular.
Restricción calorica resulta en perdida de grasa,de;De cualquier de modo tambien resulta en perdida de músculo y por lo tanto reduccion de la fuerza y capacidad aerobica(VO2max)Esos efectos no ocurren con el cardiovascular,por causa de los efectos anabolicos del ejercicio en el músculo esqueletico y en el cardiaco.Nosotros checamos la hipótesis que la restricción calorica reduce el grosor y fuerza del músculo esqueletico y el V02,mientras que el cardiovascular mejora o preserva esos parámetros..
Fuente: http://hypertrophy-research.com/phpBB/v ... .php?t=199
Restriccion calorica VS cardio...
Moderadores: moderador suplente, admin
Este link complementa un poco Karkian.
http://www.lidercanarias.com/patin/arti ... 1fd05.html
De lo dicho por ti y de lo que pone en este link es la razon que justificaria en parte que yo realize una sesion importante de ejercicio cardiovascular seguido de una rutina basada en HST.

http://www.lidercanarias.com/patin/arti ... 1fd05.html
De lo dicho por ti y de lo que pone en este link es la razon que justificaria en parte que yo realize una sesion importante de ejercicio cardiovascular seguido de una rutina basada en HST.



