Related Experiment Video
Updated: Mar 28, 2026
06:28
A Chronic High-Intensity Interval Training and Diet-Induced Obesity Model to Maximize Exercise Effort and Induce Physiologic Changes in Rats
Published on: April 28, 2023
1.5K
Weight Loss, Performance and Psychological Related States in High-level Weightlifters
A Durguerian1, C Bougard2, C Drogou2
1CIAMS, Université Paris Sud, Universite Orleans, France.
International Journal of Sports Medicine
|December 25, 2015
Summary
Rapid weight loss in athletes significantly reduced energy and micronutrient intake, impacting recovery and increasing stress. However, weightlifting performance remained unaffected in this short-term study.
Area of Science:
- Sports Science
- Nutrition Science
- Exercise Physiology
Background:
- Rapid weight loss is common among athletes in weight-class sports.
- The physiological and psychological impacts of short-term, rapid weight loss require further investigation.
Purpose of the Study:
- To investigate the effects of a 6-day rapid weight loss intervention on dietary intake, psychological status, and physical performance in international weightlifters.
Main Methods:
- 11 international weightlifters underwent a 6-day period of food restriction for weight loss or maintenance.
- Assessments included body composition, performance tests, mood state evaluation (Recovery-Stress Questionnaire for Athletes), and 6-day dietary records.
Main Results:
- Weight loss group (4.34% body weight reduction) showed a 40% decrease in energy intake, significantly reduced general recovery scores, and increased psychological stress.
- Micronutrient intake (Vitamins B1, B3, B6, B9, magnesium) fell below recommendations.
- Weightlifting performance was not significantly impaired by the 6-day food restriction.
Conclusions:
- Short-term, rapid weight loss in athletes can compromise nutritional status and psychological well-being.
- While performance may be maintained short-term, such practices pose risks to training adaptations and athlete health if employed frequently.
More Related Videos
10:19Getting to Compliance in Forced Exercise in Rodents: A Critical Standard to Evaluate Exercise Impact in Aging-related Disorders and Disease
Published on: August 22, 2014
14.8K
08:21Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol
Published on: June 8, 2017
8.2K
Related Concept Videos
01:27Exercise and Muscle Performance
4.3K
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
4.3K
01:18Metabolic States of the Body: The Postabsorptive State
1.6K
The postabsorptive state usually starts about four hours after a meal and lasts until the next meal is eaten. During this time, the digestive system stops absorbing nutrients, and the body uses stored energy reserves to maintain stable blood glucose levels.
Initially, glycogen stored in the liver is broken down to release glucose into the bloodstream, while glycogen in the muscles is broken down to supply glucose for energy directly within the muscle cells. As glycogen stores diminish,...
Initially, glycogen stored in the liver is broken down to release glucose into the bloodstream, while glycogen in the muscles is broken down to supply glucose for energy directly within the muscle cells. As glycogen stores diminish,...
1.6K
01:21Drug Dosing: Obese Patients
339
In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...
339
01:24Metabolic States of the Body: Fasting and Starvation
3.3K
During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...
3.3K
01:24Muscle Recovery and Fatigue
4.9K
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
4.9K
01:27Introduction to Stress and Lifestyle
810
Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
810