Article
Pediatrics
Karin Kjellenberg, Orjan Ekblom, Cecilia Stalman, Bjorg Helgadottir, Gisela Nyberg
Summary: A study of Swedish 13-14-year-old adolescents found significant associations between participation in organized sports, engaging in moderate to vigorous physical activity (MVPA), and reducing sedentary time, with cardiovascular fitness levels. Additionally, more than five hours of screen time on weekdays was linked to lower cardiovascular fitness. These findings may be relevant for future interventions aimed at improving cardiovascular fitness.
Article
Medicine, General & Internal
Karin Kjellenberg, Orjan Ekblom, Johan Ahlen, Bjorg Helgadottir, Gisela Nyberg
Summary: This study explores the associations between physical activity patterns, screen time, and mental health in Swedish adolescents. The results show that moderate-to-vigorous physical activity is positively associated with better mental health, while screen time is inversely associated. However, these associations vary across different time domains, genders, and mental health outcomes.
Article
Clinical Neurology
Wanxin Wang, Xueying Du, Yangfeng Guo, Wenyan Li, Sheng Zhang, Weihong Zhang, Roger S. McIntyre, Jocelyn K. Tamura, Lan Guo, Ciyong Lu
Summary: The study found significant associations between screen time, sleep duration, and depressive symptoms among Chinese adolescents, with sleep duration mediating the relationship between screen time and depressive symptoms. Future interventions targeting depressive symptoms in adolescents should focus on managing sleep time and reducing screen time.
JOURNAL OF AFFECTIVE DISORDERS
(2021)
Article
Medicine, General & Internal
Jason M. Nagata, Natalia Smith, Sana Alsamman, Christopher M. Lee, Erin E. Dooley, Orsolya Kiss, Kyle T. Ganson, David Wing, Fiona C. Baker, Kelley Pettee Gabriel
Summary: This study aimed to identify the independent associations and interactions between physical activity, screen time, and BMI in adolescents. The findings showed that a combination of low screen time and high step count was associated with lower BMI percentile in adolescents. These results have significant implications for future guidance on screen time and physical activity for adolescents.
Article
Public, Environmental & Occupational Health
L. Marciano, A. L. Camerini
Summary: This study found that meeting recommendations for screen time and MVPA were associated with higher academic achievement, while meeting sleep recommendations was not. Additionally, multitasking with multiple media was associated with poorer academic performance.
Article
Public, Environmental & Occupational Health
Caihong Huang, Aamir Raoof Memon, Jin Yan, Youliang Lin, Si-Tong Chen
Summary: This study investigated the relationship between active travel to school with physical activity and screen time among adolescents in China. Walking and cycling were the main types of active travel, and active commuting was associated with increased levels of physical activity.
FRONTIERS IN PUBLIC HEALTH
(2021)
Article
Public, Environmental & Occupational Health
Karel Fromel, Josef Mitas, Dorota Groffik, Michal Kudlacek, Pavel Hap
Summary: This study aimed to investigate the preferences of team sports (TS) among Czech and Polish adolescents in different educational and sports environments, and the impact of agreement between preferred and participated TS on their physical activity (PA) levels and meeting PA recommendations. The results showed that agreement between preferences and participation in TS increased vigorous PA and had a significant effect on total PA. Those who preferred and participated in TS were more likely to meet PA recommendations.
FRONTIERS IN PUBLIC HEALTH
(2022)
Article
Substance Abuse
Dylan S. Irvine, Ellen McGarity-Shipley, Eun-Young Lee, Ian Janssen, Scott T. Leatherdale
Summary: This study investigated the longitudinal associations between e-cigarette use, cigarette smoking, physical activity, and recreational screen time among Canadian adolescents. The results showed an increase in e-cigarette use, cigarette smoking, and dual use, while participation in sports and meeting the recommended levels of physical activity and muscular strengthening exercises decreased. Recreational screen time remained similar. New e-cigarette use at follow-up was associated with maintaining participation in sports and meeting physical activity and muscular strengthening exercise goals, but also with increased screen time. New cigarette smoking at follow-up was associated with maintaining high screen time and low participation in sports. Cigarette smoking at baseline and follow-up was associated with maintaining high screen time, low muscular strengthening exercises, and low participation in sports. Quitting cigarette smoking at follow-up was associated with increasing physical activity and muscular strengthening exercises, decreasing screen time, and maintaining low participation in sports.
NICOTINE & TOBACCO RESEARCH
(2022)
Article
Psychology, Developmental
Chloe Forte, Darragh O'Sullivan, Cillian P. McDowell, Mats Hallgren, Catherine B. Woods, Matthew P. Herring
Summary: Higher levels of physical activity and screen time among adolescents are associated with different mental health outcomes. This study examines the associations between screen time and physical activity level with depressive symptoms among 1756 adolescents in Ireland. The findings highlight the complex interrelationships between screen time, physical activity, and depressive symptoms, which may vary based on gender and screen time mode. Future research should explore longitudinal associations and consider different media and genders.
EUROPEAN CHILD & ADOLESCENT PSYCHIATRY
(2023)
Article
Public, Environmental & Occupational Health
Jessica Baldwin, Lauren Arundell, Jill A. Hnatiuk
Summary: This study examines the relationship between the neighbourhood social environment (NSE) and the physical activity and screen time behaviours of preschool-aged children. The findings suggest that social interaction is associated with increased physical activity, decreased screen time, and improved likelihood of meeting physical activity and screen time guidelines. Higher neighbourhood crime is associated with a lower likelihood of meeting screen time guidelines. Social cohesion, sense of community, and social norms were not significant predictors of daily physical activity, screen time, or meeting guidelines. Future research should consider potential mediators of this relationship and guide community-based initiatives for children's behavioral, health, and social outcomes.
Article
Sport Sciences
Kazi Rumana Ahmed, Tracy Kolbe-Alexander, Asaduzzaman Khan
Summary: The study found that a multi-component school-based intervention had significant effects on increasing physical activity, reducing screen time, and improving related knowledge. Further evaluations in other locations, especially rural areas, are needed in the future.
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
(2022)
Article
Psychology, Clinical
Samah Zahran, Ian Janssen
Summary: This study examined the relationship between move-ment behavior composition and polysubstance use among grade 6-10 students. Results showed that sleep was negatively associated and screen time was positively associated with polysubstance use. Reallocating physical activity or screen time into sleep was associated with lower polysubstance use, except for boys in grades 9-10 where reallocating physical activity into screen time or sleep was associated with greater polysubstance use.
ADDICTIVE BEHAVIORS
(2023)
Article
Sport Sciences
Patrick Abi Nader, Jeffrey Gaudet, Jennifer Brunet, Katie E. Gunnell, Isabelle Dore, Catherine M. Sabiston, Jonathan Boudreau, Mathieu Belanger
Summary: This study found that physical activity in boys was positively influenced by enjoyment motives and negatively influenced by fitness motives, while physical activity in girls was positively influenced by competence motives. Therefore, boys may benefit from interventions aimed at increasing enjoyment, while girls may benefit from developing their competence.
JOURNAL OF SPORTS SCIENCES
(2021)
Article
Multidisciplinary Sciences
Youzhi Ke, Sitong Chen, Jintao Hong, Yahan Liang, Yang Liu
Summary: This study aimed to investigate the association between socioeconomic status (SES) and screen time (ST) in Chinese children and adolescents. The findings revealed that children and adolescents with higher parental education levels were more likely to meet the ST guidelines. Associations between SES and ST varied across sex and grade groups, as well as between weekdays and weekends. Therefore, targeting children and adolescents with low SES levels for intervention is crucial.
Article
Public, Environmental & Occupational Health
Huiying Fan, Jin Yan, Zhen Yang, Kaixin Liang, Sitong Chen
Summary: This study investigated the associations between screen time and lifestyle behaviors in American adolescents. The results showed that more than two hours of television time was significantly associated with lower frequency of eating fruits and vegetables, as well as smoking. More than two hours of computer/video time was significantly associated with physical inactivity, insufficient sleep, and not eating fruits.
FRONTIERS IN PUBLIC HEALTH
(2022)
Article
Sport Sciences
Miriam Martinez-Canton, Angel Gallego-Selles, Miriam Gelabert-Rebato, Marcos Martin-Rincon, Fernando Pareja-Blanco, David Rodriguez-Rosell, David Morales-Alamo, Joaquin Sanchis-Moysi, Cecilia Dorado, Juan Jose Gonzalez-Badillo, Jose A. L. Calbet
Summary: Strength training induces a shift in myosin heavy chain composition from IIX to IIA by influencing CaMKII and SLN. The amount of fatigue allowed in each set critically determines muscle phenotype changes through its impact on CaMKII and SLN responses. Lower intra-set fatigue attenuates the IIX-to-IIA MHC shift.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2021)
Article
Environmental Sciences
Ana Rodriguez-Larrad, Asier Manas, Idoia Labayen, Marcela Gonzalez-Gross, Ander Espin, Susana Aznar, Jose Antonio Serrano-Sanchez, Francisco J. Vera-Garcia, Domingo Gonzalez-Lamuno, Ignacio Ara, Luis Carrasco-Paez, Jose Castro-Pinero, Mari Carmen Gomez-Cabrera, Sara Marquez, Josep A. Tur, Narcis Gusi, Pedro J. Benito, Diego Moliner-Urdiales, Jonatan R. Ruiz, Francisco B. Ortega, David Jimenez-Pavon, Jose Antonio Casajus, Jon Irazusta
Summary: During the COVID-19 pandemic, Spanish university students reduced moderate (-29.5%) and vigorous (-18.3%) physical activity, while increasing sedentary time (+52.7%). However, they spent more time on high intensity interval training (HIIT) (+18.2%) and mind-body activities such as yoga (+80.0%). Women adapted better to physical activity during confinement compared to men.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Sport Sciences
Pablo B. Pedrianes-Martin, Mario Perez-Valera, David Morales-Alamo, Marcos Martin-Rincon, Ismael Perez-Suarez, Jose A. Serrano-Sanchez, Juan Jose Gonzalez-Henriquez, Victor Galvan-Alvarez, Carmen Acosta, David Curtelin, Pedro de Pablos-Velasco, Jose A. L. Calbet
Summary: The study found that hypertensive patients have a higher resting metabolic rate than normotensive patients, along with reduced insulin sensitivity. This increased metabolic rate can be explained by an elevated myocardial oxygen consumption due to an increased resting double product, combined with differences in body composition between hypertensive and normotensive subjects.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2021)
Article
Neurosciences
Marcos Martin-Rincon, Miriam Gelabert-Rebato, Mario Perez-Valera, Victor Galvan-Alvarez, David Morales-Alamo, Cecilia Dorado, Robert Boushel, Jostein Hallen, Jose A. L. Calbet
Summary: The study found that males and females demonstrate similar physiological responses during repeated supramaximal whole-body exercise, with both sexes having a large functional reserve at fatigue, dependent on glycolytic energy supply. Females exhibit higher oxygen extraction capacity compared to males, but with reduced PETCO2 and brain oxygenation.
JOURNAL OF PHYSIOLOGY-LONDON
(2021)
Article
Sport Sciences
Mario Perez-Valera, Miriam Martinez-Canton, Angel Gallego-Selles, Victor Galvan-Alvarez, Miriam Gelabert-Rebato, David Morales-Alamo, Alfredo Santana, Saul Martin-Rodriguez, Jesus Gustavo Ponce-Gonzalez, Steen Larsen, Jose Losa-Reyna, Ismael Perez-Suarez, Cecilia Dorado, David Curtelin, Juan Jose Gonzalez-Henriquez, Robert Boushel, Jostein Hallen, Pedro de Pablos Velasco, Jorge Freixinet-Gilart, Hans-Christer Holmberg, Jorn W. Helge, Marcos Martin-Rincon, Jose A. L. Calbet
Summary: This study found that women have higher levels of ACE2 protein expression in their skeletal muscles compared to men, and this sexual dimorphism is mainly attributed to differences in body fat percentage and cardiorespiratory fitness. The body fat percentage is the main predictor of the variability in ACE2 protein expression in human skeletal muscle.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2021)
Article
Sport Sciences
Mairena Sanchez-Lopez, Antonio Garcia-Hermoso, Francisco B. Ortega, Diego Moliner-Urdiales, Idoia Labayen, Jose Castro-Pinero, Pedro J. Benito, German Vicente-Rodriguez, Joaquin Sanchis-Moysi, Jaume Cantallops, Enrique G. Artero, Vicente Martinez-Vizcaino
Summary: The study aims to examine the validity and reliability of the parent-reported IFIS in preschoolers. The results indicate that there is poor concordance between parent-reported fitness levels and objective assessment, suggesting that parents may not be able to correctly classify preschoolers according to their fitness level.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2023)
Article
Environmental Sciences
Luis Miguel Bello-Lujan, Jose Antonio Serrano-Sanchez, Juan Jose Gonzalez-Henriquez
Summary: This study examined the consistency and stability of gender gap in chronic morbidities in the general population and analyzed the trends of major chronic morbidities between 1997 and 2015. Musculoskeletal diseases, headaches, anxiety and depression, and peripheral vascular diseases showed a stable gender gap, while high cholesterol and high blood pressure tended to have a reduced gap. Heart disease, diabetes, and respiratory disease did not show a significant gender gap. The trends of the main chronic morbidities increased similarly in men and women, with significant increases in women over 60 years old and men over 45 years old.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Biochemistry & Molecular Biology
Angel Gallego-Selles, Victor Galvan-Alvarez, Miriam Martinez-Canton, Eduardo Garcia-Gonzalez, David Morales-Alamo, Alfredo Santana, Juan Jose Gonzalez-Henriquez, Cecilia Dorado, Jose A. L. Calbet, Marcos Martin-Rincon
Summary: The NF-kappa B signaling pathway plays a critical role in various biological processes and can be activated during exercise. This study demonstrates that exercising to exhaustion activates NF-kappa B signaling in human skeletal muscle, and the regulation of this pathway is influenced by metabolite accumulation and oxygen levels. These findings have important implications for the interpretation of previous studies and the design of future experiments.
Article
Anatomy & Morphology
Saul Martin-Rodriguez, Juan Jose Gonzalez-Henriquez, Victor Galvan-Alvarez, Sara Cruz-Ramirez, Jose A. Calbet, Joaquin Sanchis-Moysi
Summary: The study found that there are morphological differences in the tibialis anterior muscle between males and females, with males having greater muscle thickness and pennation angle compared to females, while fascicle length is similar in both sexes. Additionally, muscle thickness and pennation angle are greater in the deep unipennate region compared to the superficial region, and these differences remain significant even after accounting for leg lean mass and shank length. There are sex differences in muscle thickness and pennation angle in the superficial region, but not in the deep region, and adjusted fascicle length is longer in females than males when considering leg lean mass and shank length.
JOURNAL OF ANATOMY
(2023)
Article
Nutrition & Dietetics
Jose Antonio Serrano-Sanchez, Joaquin Sanchis-Moysi
Summary: This study evaluates the effectiveness of different types of spaces on public health from a physical activity perspective. It finds that urban open public spaces contribute more to energy expenditure for most of the population, while indoor sport facilities are more effective in achieving a healthy level of physical activity. This highlights the need for policy changes in the construction and management of sport facilities and open public spaces to increase physical activity in high-risk groups.
NUTRICION HOSPITALARIA
(2023)
Article
Nursing
Candelaria de la Merced Diaz-Gonzalez, Josefa Maria Ramal-Lopez, Juan Jose Gonzalez-Henriquez, Milagros de la Rosa-Hormiga
Summary: This study aimed to investigate the differences in pain perception during LMWH administration among patients with different skin phototypes. The results showed that participants with medium-high phototype experienced more pain after enoxaparin injection compared to those with low phototype.