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Flexible vs. rigid dieting in resistance-trained individuals seeking to optimize their physiques: A randomized controlled trial.

Laurin Alexandra ConlinDanielle Trina AguilarGavin Elliot RogersBill I Campbell
Published in: Journal of the International Society of Sports Nutrition (2021)
A flexible or rigid diet strategy is equally effective for weight loss during a caloric restriction diet in free-living, RT individuals. While post-diet FFM gains were greater in the FLEX group, there were no significant differences in the amount of time spent in resistance and aerobic exercise modes nor were there any significant differences in protein and total caloric intakes between the two diet groups. In the absence of a clear physiological rationale for increases in FFM, in addition to the lack of a standardized diet during the post-diet phase, we refrain from attributing the increases in FFM in the FLEX group to their diet assignment during the diet phase of the investigation. We recommend future research investigate additional physiological and psychological effects of flexible diets and weight regain in lean individuals.
Keyphrases
  • weight loss
  • physical activity
  • bariatric surgery
  • roux en y gastric bypass
  • gastric bypass
  • mental health
  • clinical trial
  • weight gain
  • body mass index
  • type diabetes
  • depressive symptoms
  • current status
  • body composition