A5065839112- Sports Performance and Training
- Sports injuries and prevention
- Winter Sports Injuries and Performance
- Cardiovascular and exercise physiology
- Muscle metabolism and nutrition
- Exercise and Physiological Responses
- Sport Psychology and Performance
- Cardiovascular Effects of Exercise
- Genetics and Physical Performance
- Lower Extremity Biomechanics and Pathologies
- Physical Activity and Health
- High Altitude and Hypoxia
- Occupational Health and Performance
- Physical Education and Pedagogy
- EEG and Brain-Computer Interfaces
- Motivation and Self-Concept in Sports
- Heart Rate Variability and Autonomic Control
- Muscle activation and electromyography studies
- Cryospheric studies and observations
- Spinal Cord Injury Research
- Functional Brain Connectivity Studies
- Hormonal and reproductive studies
- Menstrual Health and Disorders
- Sports Analytics and Performance
- Sports, Gender, and Society
Norwegian University of Science and Technology
2016-2025
UiT The Arctic University of Norway
2022-2025
Universidade Federal da Bahia
2023
Federal Scientific Center of Physical Culture and Sports
2023
Primary Health Care
2023
Stellenbosch University
2022
Centre for Movement Disorders
2022
Maastricht University
2022
DSM (Netherlands)
2022
British Cycling
2022
Abstract The International Olympic Committee (IOC) recently published a framework on fairness, inclusion, and nondiscrimination the basis of gender identity sex variations. Although we appreciate IOC's recognition role sports science medicine in policy development, disagree with assertion that IOC is consistent existing scientific medical evidence question its recommendations for implementation. Testosterone exposure during male development results physical differences between female bodies;...
Cross-country (XC) skiing has been an Olympic event since the first Winter Games in Chamonix, France, 1924. Due to more effective training and tremendous improvements equipment track preparation, speed of XC-ski races increased than that any other endurance sport. Moreover, pursuit, mass-start, sprint have introduced. Indeed, 10 12 current competitions XC involve mass starts, which tactics play a major role outcome is often decided final sprint. Accordingly, reappraisal success factors for...
The present study investigated the physiological characteristics of eight world‐class (WC) and national‐class (NC) Norwegian sprint cross country skiers. To measure response treadmill performance, skiers performed a submaximal test, peak aerobic capacity (VO 2peak ) speed ( V test in skating G3 technique. Moreover, were tested for acceleration outdoors on asphalt maximal strength lab. standard performance level snow was determined by International Ski Federation points, training distribution...
This investigation was designed to analyze the time-trial (STT) in an international cross-country skiing sprint skating competition for (1) overall STT performance and relative contributions of time spent different sections terrain, (2) work rate kinematics on uphill (3) relationships physiological kinematic parameters while treadmill roller ski skating. Total times nine terrain by 12 world-class male skiers were determined, along with one specific section. In addition, peak oxygen uptake...
Purpose The objective of this study is to examine the effects acute ingestion dietary nitrate on endurance running performance in highly trained cross-country skiers. Dietary has been shown reduce oxygen cost submaximal exercise and improve tolerance high-intensity exercise, but it not known if holds true for athletes. Methods Ten male junior skiers (V˙O2max ≈ 70 mL·kg−1·min−1) each completed two trials a randomized, double-blind design. Participants ingested potassium (614-mg nitrate) or...
The main aim of this study was to investigate the training characteristics most successful female cross-country skier ever during best period her career. participant won six gold medals at Olympic Games, 18 World Championship, and 110 Cup victories. Day-to-day diary data, interviews, physiological tests were analyzed. Training data systemized by form (endurance, strength, speed), intensity [low- (LIT), moderate- (MIT), high-intensity (HIT)], mode (running, cycling, skiing/roller skiing),...
The objective of this study is to compare the physiological capacity and training characteristics world's six highest ranked female cross-country skiers (world class (WC)) with those competitors national (NC).Immediately before start competition season, all performed three 5-min submaximal stages roller skiing on a treadmill for measurement oxygen cost, as well 3-min self-paced performance test using both double poling (DP) diagonal stride (DIA) techniques. During tests, total distance...
To investigate changes in self-reported physical fitness, performance, and side effects across the menstrual cycle (MC) phases among competitive endurance athletes to describe their knowledge communication with coaches about MC.The responses of 140 participants (older than 18 y) competing biathlon or cross-country skiing at (inter)national level were analyzed. Data collected via an online questionnaire addressing participants' level, training volume, MC history, performance during MC,...
AMA Dergaa I, Ben Saad H, El Omri A, et al. Using artificial intelligence for exercise prescription in personalised health promotion: A critical evaluation of OpenAI’s GPT-4 model. Biology Sport. 2024;41(2):221-241. doi:10.5114/biolsport.2024.133661. APA Dergaa, I., Saad, H., Omri, A., Glenn, J. M., Clark, C. C., & Washif, A. (2024). Sport, 41(2), 221-241. https://doi.org/10.5114/biolsport.2024.133661 Chicago Ismail, Helmi Abdelfatteh Jordan M Cain C Jad and Noomen Guelmami 2024. "Using...
This study aimed to investigate the effect of MC and endogenous sex hormone concentrations on performance-determining variables in three distinct phases endurance-trained females.
Purpose This study aimed to compare the effects of three different high-intensity training (HIT) models, balanced for total load but differing in plan progression, on endurance adaptations. Methods Sixty-three cyclists (peak oxygen uptake (V˙O2peak) 61.3 ± 5.8 mL·kg−1·min−1) were randomized groups and instructed follow a 12-wk program consisting 24 interval sessions, high volume low-intensity training, laboratory testing. The increasing HIT group (n = 23) performed as 4 × 16 min weeks 1–4, 8...
Female athletes train and compete under the potential influence of hormonal fluctuations during menstrual cycle or use various contraceptives. Dysmenorrhea premenstrual symptoms are common in general population, as well side effects More detailed knowledge concerning prevalence perceived impact these on training performance different sports is required. The aim study was to 1) characterize perceptions phases by contraceptive a large population female athletes; 2) explore whether experienced...
Elite sport is continuously evolving. World records keep falling and athletes from a longer list of countries are involved.This commentary was designed to provide insights into present future trends associated with world-class endurance training based on the perspectives, experience, knowledge an expert panel 25 applied scientists.The key drivers development observed in past 10-15 years were related (1) more accessible scientific for coaches combined (2) better integration practical exchange...
Abstract Background Our scientific understanding of the mechanistic and practical connections between training session prescriptions, their execution by athletes, adaptations over time in elite endurance sports remains limited. These are fundamental to art science coaching. Objective By using successful Norwegian coaches as key informants, aim this study is describe compare best practice models across different exercise intensities Olympic sports. Methods Data collection was based on a...