Subj : Inadequate energy intake affects female To : All From : ScienceDaily Date : Mon Jul 03 2023 22:30:28 Inadequate energy intake affects female athletes Date: July 3, 2023 Source: Aarhus University Summary: Diet and training go hand in hand if you want to achieve the best results. Most athletes know this, and many of them closely monitor their energy intake and training. However, a new study shows that the bodies of female athletes are negatively affected when the athletes consumes too little energy through their diet in comparison with their training volume. Facebook Twitter Pinterest LinkedIN Email ========================================================================== FULL STORY ========================================================================== A new study from Aarhus University shows that when female athletes lower their energy intake and increase their training, their health and the ability of their muscles to respond to training are negatively impacted. Diet and training go hand in hand if you want to achieve the best results. Most athletes know this, and many of them closely monitor their energy intake and training. However, a new study from the Department of Public Health at Aarhus University shows that the bodies of female athletes are negatively affected when the athletes consumes too little energy through their diet in comparison with their training volume, explains PhD student Mikkel Oxfeldt. He and Associate Professor Mette Hansen are behind the study. "We know that both elite female athletes and active women at times, either consciously or unconsciously, don't have an energy intake that matches their energy expenditure when training. The study shows that insufficient energy intake can negatively affect muscles' ability to respond to training. After just ten days of low energy intake, we began seeing changes to the hormonal system such as a decrease in the metabolic hormone followed by a decrease in metabolism." The study shows that it is important that women are careful about not reducing their energy intake too much. In fact, they should actually be increasing their energy intake if they increase their training volume, says Mikkel Oxfeldt: "When you don't get enough energy from your diet, your body will begun to pare down processes that require a lot of energy, just like a mobile phone that goes into battery-saving mode. We know from previous studies that it can cause some women's periods to stop. However, our results show that other processes in the body, such as building new muscle proteins, are also affected." We must confront the unilateral focus on weight Thirty fit women between the ages of 18-30 participated in the study which is part of the Novo Nordic-funded Team Denmark network called 'competition preparation and training optimization'. All the women started the study right after the start of their menstrual period and followed a very controlled training and diet regimen for three weeks. "Under the supervision of the researchers, the participants carried out individual training programmes aimed at increasing muscle mass, strength and overall fitness. The women's meals were also provided by us. By controlling their training regimen and their diets, we were able to see how much energy they expended and what they ate during the study," says Mikkel Oxfeldt and continues: "This is the first time that such a well-controlled study has been carried out in this area, where both the diet and training of a group of fit women has been regulated to this extent. During the study, all participants drank doubly labelled water, which is enriched with a trace material. When we combine this tracer technique with the retrieval and subsequent analysis of muscle tissue samples, we can gain detailed insight into the muscles' response to the experimental protocol," explains Mikkel Oxfeldt. Mikkel and the research group believe it's necessary to confront the idea that weight loss leads to medals when in fact weight loss can negatively impact a number of the body's systems, including muscles. "In recent years, we've heard about public weigh-ins within some elite sports. They are part of promoting a culture in which some women are constantly trying to lose weight. However, our results show that this focus on weight loss can have short and potentially long-term negative consequences for women, both in relation to their health and training results. The study will hopefully provide athletes and coaches with a more nuanced picture of possible side effects." In collaboration with colleagues from the University of Copenhagen and University of Southern Denmark, the researchers behind the study are now investigating how physical performance, the immune system and metabolism are affected by an insufficient energy intake. They hope to one day be able to establish whether there is a difference between how women's and men's bodies react to inadequate energy intake. * RELATED_TOPICS o Health_&_Medicine # Fitness # Diet_and_Weight_Loss # Menopause # Medical_Education_and_Training # Obesity # Women's_Health # Sports_Medicine # Gynecology * RELATED_TERMS o Marathon o Weight_training o Functional_training o Athletic_training o Zone_diet o Ophthalmology o Dieting o General_fitness_training ========================================================================== Print Email Share ========================================================================== ****** 1 ****** ***** 2 ***** **** 3 **** *** 4 *** ** 5 ** Breaking this hour ========================================================================== * Screens_More_Versatile_Than_LED:_Fins_and_... * GM_Pig_Heart_in_a_Human_Patient:_Update * Multiple_Sclerosis_Severity * Wind_Farm_Noise_and_Road_Traffic_Noise * Mavericks_and_Horizontal_Gene_Transfer * Early_Reading_for_Pleasure:_Brains,_... * New_Light_Shed_On_Evolution_of_Animals * Gullies_On_Mars_from_Liquid_Meltwater? * DNA_Organization_in_Real-Time * How_the_Cat_Nose_Knows_What_It's_Smelling Trending Topics this week ========================================================================== HEALTH_&_MEDICINE Personalized_Medicine Fitness Nervous_System MIND_&_BRAIN K-12_Education Caregiving Intelligence LIVING_&_WELL Fitness Staying_Healthy Nutrition ========================================================================== Strange & Offbeat ========================================================================== HEALTH_&_MEDICINE Grocery_Store_Carts_Set_to_Help_Diagnose_Common_Heart_Rhythm_Disorder_and Prevent_Stroke DNA_Can_Fold_Into_Complex_Shapes_to_Execute_New_Functions Everyone's_Brain_Has_a_Pain_Fingerprint_--_New_Research_Has_Revealed_for_the First_Time MIND_&_BRAIN Scientists_Discover_Spiral-Shaped_Signals_That_Organize_Brain_Activity Illusions_Are_in_the_Eye,_Not_the_Mind Long_Missions,_Frequent_Travel_Take_a_Toll_on_Astronauts'_Brains LIVING_&_WELL Amputees_Feel_Warmth_in_Their_Missing_Hand Why_Do_Champagne_Bubbles_Rise_the_Way_They_Do?_Scientists'_New_Discovery_Is Worthy_of_a_Toast 'Gluing'_Soft_Materials_Without_Glue Story Source: Materials provided by Aarhus_University. Original written by Vibe Bregendahl Noordeloos. Note: Content may be edited for style and length. ========================================================================== Journal Reference: 1. Mikkel Oxfeldt, Stuart M. Phillips, Ole Emil Andersen, Frank Ted Johansen, Maj Bangshaab, Jeyanthini Risikesan, James McKendry, Anna Katarina Melin, Mette Hansen. Low energy availability reduces myofibrillar and sarcoplasmic muscle protein synthesis in trained females. The Journal of Physiology, 2023; DOI: 10.1113/JP284967 ========================================================================== Link to news story: https://www.sciencedaily.com/releases/2023/07/230703133118.htm --- up 1 year, 18 weeks, 10 hours, 50 minutes * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (1:317/3) .