George P. Nassis

ORCID: 0000-0003-2953-3911
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About
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Research Areas
  • Sports Performance and Training
  • Sports injuries and prevention
  • Cardiovascular and exercise physiology
  • Exercise and Physiological Responses
  • Cardiovascular Effects of Exercise
  • Obesity, Physical Activity, Diet
  • Thermoregulation and physiological responses
  • Sport Psychology and Performance
  • Physical Activity and Health
  • Muscle metabolism and nutrition
  • Heart Rate Variability and Autonomic Control
  • Health and Lifestyle Studies
  • Children's Physical and Motor Development
  • Sports and Physical Education Research
  • Body Composition Measurement Techniques
  • Genetics and Physical Performance
  • Lower Extremity Biomechanics and Pathologies
  • Infrared Thermography in Medicine
  • Adipose Tissue and Metabolism
  • Sports Dynamics and Biomechanics
  • High Altitude and Hypoxia
  • Cardiac Health and Mental Health
  • Pharmacology and Obesity Treatment
  • Climate Change and Health Impacts
  • Occupational Health and Performance

University of Sharjah
2024-2025

United Arab Emirates University
2020-2024

University of Southern Denmark
2020-2024

National and Kapodistrian University of Athens
2006-2022

University of Pisa
2022

University of Insubria
2022

University of Pavia
2022

University of Milan
2022

Universidade Federal do Espírito Santo
2022

University of Essex
2022

Training load (TL) is monitored with the aim of making evidence-based decisions on appropriate loading schemes to reduce injuries and enhance team performance. However, little known in detail about variables methods analysis used high-level football. Therefore, this study was provide information practices practitioners' perceptions monitoring professional clubs. Eighty-two football clubs from Europe, United States, Australia were invited answer questions relating how TL quantified, players'...

10.1123/ijspp.2015-0331 article EN International Journal of Sports Physiology and Performance 2015-10-09

Exercising in the heat induces thermoregulatory and other physiological strain that can lead to impairments endurance exercise capacity. The purpose of this consensus statement is provide up-to-date recommendations optimise performance during sporting activities undertaken hot ambient conditions. most important intervention one adopt reduce acclimatise. Heat acclimatisation should comprise repeated exercise-heat exposures over 1–2 weeks. In addition, athletes initiate competition training a...

10.1136/bjsports-2015-094915 article EN cc-by-nc British Journal of Sports Medicine 2015-06-11

We aimed to evaluate the effects of COVID-19 lock down on lifestyle in China during initial stage pandemic. A questionnaire was distributed Chinese adults living 31 provinces via internet using a snowball sampling strategy. Information 7-day physical activity recall, screen time, and emotional state were collected between January 24 February 2, 2020. ANOVA, χ² test, Spearman’s correlation coefficients used for statistical analysis. 12,107 participants aged 18–80 years included. During phase...

10.3390/ijerph17145170 article EN International Journal of Environmental Research and Public Health 2020-07-17

Exercising in the heat induces thermoregulatory and other physiological strain that can lead to impairments endurance exercise capacity. The purpose of this consensus statement is provide up‐to‐date recommendations optimize performance during sporting activities undertaken hot ambient conditions. most important intervention one adopt reduce acclimatize. Heat acclimatization should comprise repeated exercise‐heat exposures over 1–2 weeks. In addition, athletes initiate competition training a...

10.1111/sms.12467 article EN Scandinavian Journal of Medicine and Science in Sports 2015-05-06

The aim of this study was to examine the relationship between anthropometry, physical capacity, and sprint swimming performance in swimmers both genders aged 12 - 14 years old. Anthropometric characteristics (body height mass, total upper extremity, hand foot lengths, chest circumference, certain body breadths, skinfolds), as well leg explosiveness (horizontal jump) arm strength (handgrip test) were evaluated 263 competitive (178 boys 85 girls) years. Skeletal age assessed with...

10.1055/s-2004-817862 article EN International Journal of Sports Medicine 2005-02-22

Data concerning the physical demands of soccer (e.g., activity pattern) suggest that a high level performance requires well-developed neuromuscular function (NF). Proficient NF may be relevant to maintain and/or increase players' short- (intense periods soccer-specific activity; accelerations, decelerations, and sprinting) long-term during match throughout season.This review examines extent which distinct modes strength training improve performance, as well effects concurrent endurance on...

10.1186/s40798-015-0006-z article EN cc-by Sports Medicine - Open 2015-04-02

The 2014 FIFA World Cup Brazil included 64 matches in temperate to tropical environmental conditions. We analysed performance data relation the conditions identify potential association.Wet-bulb globe temperature (WBGT) parameters were obtained at centre of field 1 h before start play. Environmental stress was estimated (low, moderate and high) for each match using WBGT relative humidity. Various physical technical indices recorded during (average both teams).Over matches, 28 played under...

10.1136/bjsports-2014-094449 article EN cc-by-nc British Journal of Sports Medicine 2015-02-17

China is experiencing significant public health challenges related to social and demographic transitions lifestyle transformations following unprecedented economic reforms four decades ago. Of particular concern the fourfold increase in overweight obesity rates nation’s youth population, coupled with low prevalence of adolescents meeting recommended levels physical activity. Improving overall China’s more than 170 million children has become a national priority. However, advancing nationwide...

10.1136/bjsports-2020-102261 article EN cc-by-nc British Journal of Sports Medicine 2020-05-29

The COVID-19 pandemic has changed the conditions for competitive football around globe dramatically. Several competitions and leagues have been cancelled or postponed. Players firstly forced to training in solitude. In a second stage, players start small groups with strict contact restriction return play might occur after only few weeks of normal team preparation. These special circumstances are likely impact performance injury risk upcoming competitions. Thus, clubs, coaching medical staff,...

10.1080/23750472.2020.1768635 article EN Managing Sport and Leisure 2020-05-18

This study analyzed training loads of youth soccer players and examined the influence match-related contextual variables in internal load fatigue. A secondary aim was to investigate variability these parameters throughout season. Thirteen highly trained under-19 (18.6 ± 0.5 years) were followed during one Training (daily) fatigue scores (weekly) assessed using rate perceived exertion a short questionnaire, respectively. Higher weekly reported after defeat or draw compared win (2,342 987...

10.1519/jsc.0000000000001113 article EN The Journal of Strength and Conditioning Research 2015-08-05
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