According to the findings of new research, during carbohydrate-restricted training consumption of protein supplements, specifically protein hydrolysate was helpful for improving training intensity in women, but not in men.
The new research findings will be part of a presentation this week at The Physiological Society's Annual Conference Physiology 2021.
Most nutrition guidelines for athletes are based on research in men only. This study, by Tanja Oosthuyse and her colleagues, emphasizes that this shouldn't be the case, because nutritional research findings in men don't always apply to women.
While the protein supplement helped training intensity in women, it did not improve training intensity and instead resulted in a modest negative effect in men. It made exercise feel harder for them because their bodies were working harder to break down the supplement than when they were drinking just plain water.
This research concludes that women should ingest protein supplements during fasted carbohydrate-restricted exercise, while men should be aware that it will increase their perception of effort.
Future studies need to determine whether ingesting protein hydrolysate supplements during carbohydrate-restricted training over a longer time frame of weeks or months will be beneficial.
In this study, the researchers did not consider the menstrual phase. Follow-up studies are needed to determine whether the improved training intensity when ingesting a protein hydrolysate compared with placebo water is specific to the menstrual phase.
Commenting on the study, first author Tanja Oosthuyse said, "The application of the findings from our study is purely for the specialised training tactic of overnight fasted carbohydrate-restricted exercise that aims to enhance training.
Racing nutrition, however, is very different and at the moment guidelines are standard for both men and women. We need to specify potential differences so that both men and women can train and race at the highest possible caliber."
( With inputs from ANI )
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