Hormonal
Ingesting carbohydrate during prolonged exercise (≥120 min) improves subsequent time-trial performance, whereas ingesting carbohydrate only before exercise does not.
If you are exercising for more than two hours, do not rely on eating 30 minutes before you start. Instead, consume carbohydrates (approx. 2g per kg of body weight) continuously during the exercise. Eating only before the workout may actually hinder your performance due to blood sugar fluctuations, whereas eating during the workout improves your ability to finish strong.
We conclude that 1) preexercise ingestion of CHO improves performance only when CHO ingestion is maintained throughout exercise, and 2) ingestion of CHO during 120 min of cycling improves subsequent TT performance.
Why this rating
Randomized, double-blind, crossover design with trained subjects, though sample size is small (n=7).
Source
Effects of carbohydrate ingestion before and during exercise on glucose kinetics and performance
Mark A. Febbraio et al. · Journal of Applied Physiology · 2000
DOI 10.1152/jappl.2000.89.6.2220
More from this paper
Related findings · Hormonal
- Initial treatment for type 2 diabetes should be a combination of metformin and either an SGLT-2 inhibitor or a GLP-1 receptor agonist to achieve cardiorenal protection, rather than monotherapy or older agents like sulfonylureas.Strong
- For patients with specific monogenic obesity syndromes (leptin deficiency, POMC/PCSK1/LEPR mutations), targeted pharmacotherapy (recombinant leptin or setmelanotide) is highly effective and should be prioritized, unlike in polygenic obesity.Strong
- Continued weekly administration of 2.4 mg subcutaneous semaglutide prevents weight regain and promotes further weight loss in adults with overweight or obesity, whereas switching to placebo results in significant weight regain.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →