Therefore, assessing NEAT and EEE is necessary to determine the energy status of athletes. In the present study, we aimed to characterize NEAT in athletes. In this study, FFM was significantly higher in athletes than non-athletes (Table 1). In contrast, the participants in this study lived individually in homes or apartments approximately 1 h from the campus, with their training sites also located away from the campus. The NEAT result of LEE et al. (27) relative to BW was approximately 7.5 kcal/kg BW/day, which is smaller than the value in the present study. But they won’t save you from drowning in the flood of downstream effects from long-term caloric restriction, especially for women, if you don’t plan for the 3rd and 4th quarters of the fat-loss marathon. When it comes to high-intensity training, pushing your limits is part of the process. Simple habits can make a big difference to how your body recovers after training. Losing body fat is often presented as a complicated puzzle filled with extreme diets, punishing workouts, and conflicting advice. Fat loss and muscle gain occur gradually. Most people experience at least one plateau, and research published in the American Journal of Clinical Nutrition suggests that plateaus typically occur between 6 and 12 months into a weight loss program. Even though it might not drive significant weight loss, it might help maintain weight loss by improving insulin sensitivity, for example. Other findings also suggest that energy balance could explain why some people compensate for exercise, and others don’t. (Simply cutting carbs and fat is not a guarantee for losing weight.) When it did happen, the researchers think it came from people becoming more efficient at the exercise itself, with their muscles and cells adapting to do the same work with less fuel. In other words, a run that should have burned 500 calories, only added around 165 calories to the daily budget. We use advanced panels including the DUTCH test, metabolic panels, thyroid function tests, and insulin resistance markers to build a complete picture of your metabolic health. At 1st Optimal, we approach weight loss plateaus as a clinical problem with identifiable, measurable causes rather than a willpower issue. Sleep deprivation and chronic stress create a hormonal environment that actively opposes weight loss. Cutting calories further when you are already in a deficit accelerates metabolic adaptation. Disrupted patterns, whether consistently elevated, flattened, or reversed, directly impact fat storage, muscle recovery, and appetite regulation. This is particularly valuable for identifying cortisol dysregulation as a cause of weight loss plateaus. The DUTCH (Dried Urine Test for Comprehensive Hormones) test provides a detailed map of how your body produces, metabolizes, and eliminates hormones throughout the day. When you’re overly active, the relative percent of calories burned per day from TEF decreases. → body senses you’re depriving yourself of the energy you need to survive and optimally function (potentially deprive yourself of micronutrients too) When you under-eat or are too active creating a continual energy deficit, the body undergoes a number of homeostatic changes to conserve energy as a survival mechanism to ensure we don’t starve to death. The "metabolism" that most people are thinking of is Basal Metabolic Rate, the calories (amount of energy) expended while at rest, which is fundamental for understanding an individual’s energy requirements. While we often shorthand this system as "burning fat" or "burning calories," the actual processes are far more nuanced and multi-faceted than this reductionist view. There are few things more frustrating than when you’re confident that you’re doing the right things to see the fat loss you’re striving for, yet it’s not happening. A decrease in daily energy expenditure simply means you burn fewer calories over the course of a day. Losing muscle lowers daily energy expenditure and makes fat gain easier. A 2019 study in Medicine and Science in Sports and Exercise found that resistance training preserved resting metabolic rate during weight loss better than cardio alone. There’s other evidence that the body allocates less energy to non-exercise activity thermogenesis after exercise, such as fidgeting and restlessness, walking around while on the phone, or tapping your leg. The influence of non-exercise activity thermogenesis (NEAT) on metabolic health markers is noteworthy. Numerous factors influence Non-Exercise Activity Thermogenesis (NEAT) levels, shaping how much energy individuals expend through daily activities outside of structured exercise.
