TRE and running performanceTime-Restricted Eating (TRE) is well known for promoting general health and wellbeing, but have you ever considered introducing it to support your running performance? In this episode we delve into the science behind time-restricted eating before discussing the potential PROS and CONS of time-restricted eating for sports performance. We also outline some questions you should ask yourself to help you determine if it is the correct approach for you. Show Notes(04:31)Defining Time Restricted Eating before moving on to describe its connection to the body’s Circadian System, which organises metabolism, physiology and behaviour within a daily cycle of circadian rhythms. Outlining the potential benefits to general health and wellbeing including:Insulin sensitivityGlucose toleranceReduced risk of metabolic disorders including: diabetes, insulin resistance, cardiovascular disease. (08:25)“Eat like a king in the morning, a prince at noon, and a peasant at dinner”. Appreciating this quote and analysing how TRE could sit alongside this way of eating.  (11:04)Explaining how the circadian system works and outlining the various external factors that may influence its function. Factors including:LightFeeding - what we eat Physical activity and its timingSleep - quantity and quality (15:16)Thinking about Circadian System synchronicity and how TRE may help maintain the synchronicity between the 2 parts of the system.(18:37)Looking at the potential PROS to running performance from introducing a TRE plan including:Weight lossEnergy intake not restricted – beneficial for endurance runnersTransient hypoglycaemia – may be reduced Use of fat as fuel – preserving glycogen stores(21:23)Moving on to address the potential pitfalls of TRE for running performance including:Loss of muscle massPoor food choices – energy dense, not nutrient densePoor endurance performance – in runs over 90minsStress response – potentially adding to the body’s stress burden(26:16)FEMALE FACTORS:Hormonal Imbalance: for female runners with any sex hormonal imbalance TRE may not be an ideal approach due to the potential stress response, which may further disrupt hormonal balancePregnancy: Definitely not a recommended approach for any runners who are pregnant due to the additional energy/nutrient requirements of pregnancy. Half/full/ultra marathon distance: Due to the intensity of training and long distances being run during training TRE wouldn’t be recommended due to the limitations of Fasted State Running, but also the limited ability to take on sufficient energy during the eating window.(31:25)Considering how to introduce Time Restricted Eating alongside your running training, but also highlighting the key questions to ask yourself before embarking on this approach to eating. The key questions include:Within how many hours will your eating window be? At what time of the day will you start/end eating? How do your timing decisions fit in with your work/home/family situation? How do your timing decisions fit in with when you train? Will it support my training or hinder my running performance?  Moving on to think about how to introduce TRE into your plan; take it slowly, ensure optimal everyday nutrition is in place first, ensure your food choices are nutrient dense, maybe begin with 14:10 eating window and build up to 16:8.(38:06)KEY TAKEAWAYS:1) TRE

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