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Full-Text Articles in Physiology
Effects Of Photobiomodulation On High-Intensity Intermittent Anaerobic Performance Of Lower Limbs In Brazilian Jiu-Jitsu Athletes: A Randomized, Crossover, Double-Blind Clinical Trial., Rubens B. Dos Santos Junior, Bráulio H.M. Branco, Leonardo V. Andreato, Deborah C. S. Marques, Fabiano M. De Oliveira, Willian C. Ferreira, Eduardo M G Bardi, Eduardo V. Fernandes, Solange De Paula Ramos
Effects Of Photobiomodulation On High-Intensity Intermittent Anaerobic Performance Of Lower Limbs In Brazilian Jiu-Jitsu Athletes: A Randomized, Crossover, Double-Blind Clinical Trial., Rubens B. Dos Santos Junior, Bráulio H.M. Branco, Leonardo V. Andreato, Deborah C. S. Marques, Fabiano M. De Oliveira, Willian C. Ferreira, Eduardo M G Bardi, Eduardo V. Fernandes, Solange De Paula Ramos
International Journal of Exercise Science
International Journal of Exercise Science 16(6): 1165-1181, 2023. Photobiomodulation (PBM) has ergogenic effects on aerobic and anaerobic efforts and may improve sports performance. As Brazilian jiu-jitsu (BJJ) fighting requires both aerobic and anaerobic metabolism, so PBM may be effective in increasing the physical performance of BJJ athletes. Thus, this study aimed to verify the effects of PBM with different energy doses (6 or 12 J per point) on high-intensity intermittent anaerobic performance in BJJ athletes. Methods: Eleven male athletes performed three lower limb Wingate testing sessions. At the beginning of each session, in a randomized, crossover, double-blind fashion, the athletes …
Towards The Development Of A System Dynamics Model For The Prediction Of Lower Extremity Injuries., Nikolaos I. Liveris, George Papageorgiou, Elias Tsepis, Konstantinos Fousekis, Charis Tsarbou, Sofia A. Xergia
Towards The Development Of A System Dynamics Model For The Prediction Of Lower Extremity Injuries., Nikolaos I. Liveris, George Papageorgiou, Elias Tsepis, Konstantinos Fousekis, Charis Tsarbou, Sofia A. Xergia
International Journal of Exercise Science
International Journal of Exercise Science 16(3): 1052-1065, 2023. Acute noncontact Lower Extremity (LE) injuries constitute a significant problem in team sports. Despite extensive research, current knowledge on the risk factors of LE injuries is limited to static simplistic models of instantaneous cause and effect relationships ignoring the time dimension and the embedded complexity of LE injuries. Even though complex systems approaches have been used in various cases to improve policy and intervention effectiveness, there is limited research on predicting and managing LE injuries. This creates an opportunity to fill the gap in the current literature by applying the System Dynamics …
Short-Term Effects Of Repeated-Sprint Training On Vertical Jump Ability And Aerobic Fitness In Collegiate Volleyball Players During Pre-Season, Petrus Gantois, Gilmário Ricarte Batista, Leonardo Sousa Fortes, Arnaldo Luís Mortatti, Matheus Dantas, Daniel Gomes Da Silva Machado, Breno Guilherme De Araújo Ticoco Cabral
Short-Term Effects Of Repeated-Sprint Training On Vertical Jump Ability And Aerobic Fitness In Collegiate Volleyball Players During Pre-Season, Petrus Gantois, Gilmário Ricarte Batista, Leonardo Sousa Fortes, Arnaldo Luís Mortatti, Matheus Dantas, Daniel Gomes Da Silva Machado, Breno Guilherme De Araújo Ticoco Cabral
International Journal of Exercise Science
International Journal of Exercise Science 15(6): 1040-1051, 2022. The aim of this study was to assess the effect of repeated-sprint training (RST) on vertical jump ability and aerobic power in college volleyball players. Nineteen male volleyball players, aged between 18-24 years, were randomized into the RST group (RST; n = 10) and control group (CG; n = 9). The RST included 2-3 sets of 6x30m all-out sprints, twice per week, in addition to the regular training routine. The control group performed only the regular volleyball training sessions (i.e. mainly of technical-tactical drills). All players performed a maximal graded treadmill test, …
Bridging The Gap: Using College Athlete Support Services As Justification For Human Development In A Commercialized Sport Management, Sayvon Jl Foster, Calvin Nite
Bridging The Gap: Using College Athlete Support Services As Justification For Human Development In A Commercialized Sport Management, Sayvon Jl Foster, Calvin Nite
International Journal of Exercise Science
International Journal of Exercise Science 15(6): 934-947, 2022. This study investigates the presence of competing educational foundations within college athlete support service units across the 65 ‘Power Five’ conferences to call for more human development elements within sport management education and training. To determine the orientation of professionals within these units, educational foundation is used as the measure given the role education holds in establishing and communicating norms, values, and rules of practice for professionals within the discipline. Information was gathered through staff biographies and triangulated through secondary sources (university archives and social media accounts – LinkedIn and Twitter). Of …
Muscle Daily Undulating Periodization For Strength And Body Composition: The Proposal Of A New Model, Douglas Leão Peixoto, Bruno Magalhães De Castro, Anderson Geremias Macedo, Christiano Bertoldo Urtado, Paulo Soares Lima, Richard Leite, James W. Navalta, Jonato Prestes
Muscle Daily Undulating Periodization For Strength And Body Composition: The Proposal Of A New Model, Douglas Leão Peixoto, Bruno Magalhães De Castro, Anderson Geremias Macedo, Christiano Bertoldo Urtado, Paulo Soares Lima, Richard Leite, James W. Navalta, Jonato Prestes
International Journal of Exercise Science
International Journal of Exercise Science 15(4): 206-220, 2022. The traditional linear periodization model is designed for modifications to be performed over several weeks, whereas alterations in the undulating model are applied on a more frequent basis. The study investigated a novel periodization scheme, the muscle daily undulating periodization model (mDUP). Thirty-seven men were randomly assigned into 2 groups: (a) a group that performed 12 weeks of daily undulating periodization with fix overload (DUP-F) resistance training (n = 19) and (b) a group that performed 12-weeks of muscle daily undulating periodization with variation overload (mDUP) (n = 18). Body …
Effects Of Isometric Exercises Versus Static Stretching In Warm-Up Regimens For Running Sport Athletes: A Systematic Review, Zachary Ullman, Michael Fernandez, Matthew Klein
Effects Of Isometric Exercises Versus Static Stretching In Warm-Up Regimens For Running Sport Athletes: A Systematic Review, Zachary Ullman, Michael Fernandez, Matthew Klein
International Journal of Exercise Science
International Journal of Exercise Science 14(6): 1204-1218, 2021. The objective of this review was to identify studies that report the pre-exercise effects of isometric exercise versus static stretching on performance and injury rates of running athletes in comparison to their outcomes. Seven electronic databases were searched: Cochrane, PEDro, CINAHL, PubMed, MEDLINE, SportDiscus, and GoogleScholar. Data was collected using an established PICO question, and assembled logic grid. The included articles were required to (1) assess running performance or injury prevention and (2) include isometric exercises/muscle activation and/or static stretching. Articles published prior to the year 2000, non-English, and non-human studies were …
Youth-To-Senior Transition In Elite European Club Soccer, Thomas Carpels, Nairn Scobie, Niall G. Macfarlane, Ole J. Kemi
Youth-To-Senior Transition In Elite European Club Soccer, Thomas Carpels, Nairn Scobie, Niall G. Macfarlane, Ole J. Kemi
International Journal of Exercise Science
International Journal of Exercise Science 14(6): 1192-1203, 2021. The priority for soccer academies is to develop youth players that graduate and transfer directly to their senior squads. The aim of this study was to assess the effectiveness of this direct youth-to-senior pathway by examining the extent to which club-trained players (CTPs) are currently involved in elite male European soccer. Relevant demographic longitudinal studies between 2009 and 2020 conducted by the International Centre for Sports Studies Football Observatory were analysed. The main findings were that the proportion of CTPs in senior squads has decreased from 23% to 17% over this time …
Effects Of A 60 Minute On Ice Game Simulation On The Balance Error Scoring System, Philip Cameron, Noelle C. Soltero, Justin Byers
Effects Of A 60 Minute On Ice Game Simulation On The Balance Error Scoring System, Philip Cameron, Noelle C. Soltero, Justin Byers
International Journal of Exercise Science
International Journal of Exercise Science 11(6): 462-467, 2018. Mild traumatic brain injuries (mTBIs) are common in contact sports. There is an association between mTBIs and altered motor function. BioSway technology measures individuals’ balance using the Balance Error Scoring System (BESS). Prior to incorporating BESS testing in concussion protocol, other variables that influence the BESS test require review. The objective of this study is to determine if game fatigue in hockey players also influences the BESS score. 23 male (21.08 ± 1.09) National Collegiate Athletic Association (NCAA) athletes were tested using the BioSway™ (Biodex, USA). The BESS test measures the Sway …
Global Active Stretching (Sga®) Practice For Judo Practitioners’ Strength Enhancement, Heleno Almeida Jr., Raphael F. De Souza, Felipe J. Aidar, Alisson G. Da Silva, Ricardo P. Regi, Afranio A. Bastos
Global Active Stretching (Sga®) Practice For Judo Practitioners’ Strength Enhancement, Heleno Almeida Jr., Raphael F. De Souza, Felipe J. Aidar, Alisson G. Da Silva, Ricardo P. Regi, Afranio A. Bastos
International Journal of Exercise Science
International Journal of Exercise Science 11(6): 364-374, 2018. In order to analyze the Global Active Stretching (SGA®) practice on the physical performance enhancement in judo-practitioner competitors, 12 male athletes from Judo Federation of Sergipe (Federação Sergipana de Judô), were divided into two groups: Experimental Group (EG) and Control Group (CG). For 10 weeks, the EG practiced SGA® self-postures and the CG practiced assorted calisthenic exercises. All of them were submitted to a variety of tests (before and after): handgrip strength, flexibility, upper limbs’ muscle power, isometric pull-up force, lower limbs’ muscle power (squat-jump – SJ and countermovement jump – CMJ) …
The Relationship Between Athletic Identity And Academic Major Chosen By Student-Athletes, Sayvon Jl Foster, Matt R. Huml
The Relationship Between Athletic Identity And Academic Major Chosen By Student-Athletes, Sayvon Jl Foster, Matt R. Huml
International Journal of Exercise Science
International Journal of Exercise Science 10(6): 915-925, 2017. This study examines the correlation between athletic identity and academic major selection among intercollegiate student-athletes. A thorough review of literature focusing on academic clustering, athletic identity, and academic development leads to the development of two hypotheses – 1) student-athletes with stronger athletic identity will have a declared major of decreased academic rigor; and 2) student-athletes with stronger athletic identity will be more likely to be undecided on their major. Data were collected through a survey administered to Division I, II, and III student-athletes recording academic major and their Athletic Identity Measurement Scale …
Corporate Social Responsibility: Considerations For Sport Management In The Age Of Neoliberalism, Anthony J. Weems, Justin R. Garner, Kristi Oshiro, John N. Singer
Corporate Social Responsibility: Considerations For Sport Management In The Age Of Neoliberalism, Anthony J. Weems, Justin R. Garner, Kristi Oshiro, John N. Singer
International Journal of Exercise Science
International Journal of Exercise Science 10(6): 900-914, 2017. For financial reasons, in efforts to maintain legitimacy, and in response to social pressures, sport organizations increasingly engage with corporate social responsibility (CSR). However, with the rise of global neoliberalism, the logic of CSR can be problematic. In this essay, we provide a brief overview, critique, and reconstruction of CSR in the sport industry. Specifically, we call into question three popularized forms of CSR: (1) diversity, inclusion, and diversity management, (2) environmental responsibility, and (3) health and physical activity-based initiatives. In a neoliberal context, CSR in sport provides, at best, a limited …
From Crisis To De-Escalation: An Examination Of Politics In A U.S. High School Steroid Testing Program, Brennan K. Berg, Kathryn Winsley, Rhema D. Fuller, Michael Hutchinson
From Crisis To De-Escalation: An Examination Of Politics In A U.S. High School Steroid Testing Program, Brennan K. Berg, Kathryn Winsley, Rhema D. Fuller, Michael Hutchinson
International Journal of Exercise Science
International Journal of Exercise Science 10(6): 890-899, 2017. Preventing the use of performance enhancing drugs in sport has long been a concern for policymakers. In the United States, amidst national attention the state of Texas constructed the country’s largest steroid testing program for high school athletes. However, resource allocation steadily declined until the program was defunded in 2015. Using escalation of commitment theory as a framework, this conceptual paper examines the critical, but less studied, role of politics and de-escalation behavior that directed this distinct sport situation. By combining policy and media documents with the academic literature, this paper allows …
Coaches’ Perception Of Organizational Socialization Process Of International Student-Athletes And The Effect Of Cultural Distance: An Exploratory Study., Evelyn S. Jara-Pazmino, Bob Heere, Tom H. Regan, Christine E. Blake, Richard Southall
Coaches’ Perception Of Organizational Socialization Process Of International Student-Athletes And The Effect Of Cultural Distance: An Exploratory Study., Evelyn S. Jara-Pazmino, Bob Heere, Tom H. Regan, Christine E. Blake, Richard Southall
International Journal of Exercise Science
International Journal of Exercise Science 10(6): 875-889, 2017. This study focuses on the coaches’ perspective of the organizational socialization process of new international student-athletes. After analyzing the information of 10 in-depth interviews with experienced NCAA Division I coaches, this exploratory study aided the researchers to identify socialization tactics being used to successfully integrate international student-athletes entering USA college teams. ISAs come from different cultures, and pending on their home nation culture they might be challenged in their ability to socialize within their new surroundings. Results indicate that the cultural distance between team culture and ISA’s culture affects the effectiveness of …
Cultural Values And Gender Equity On National Olympic Committee Boards, Na Young Ahn, George B. Cunningham
Cultural Values And Gender Equity On National Olympic Committee Boards, Na Young Ahn, George B. Cunningham
International Journal of Exercise Science
International Journal of Exercise Science 10(6): 857-874, 2017. Women are under-represented in leadership positions throughout sport, and researchers have largely explored organizational, group, and individual antecedents of this phenomenon. The purpose of the current study was to expand on this understanding by investigating the influence of a country’s cultural values on the representation of women on National Olympic Committees. Drawing from Hofstede’s cultural dimensions theory, the authors included five cultural values: power distance, uncertainty avoidance, individualism-collectivism, masculinity-femininity, and long-term orientation. Results indicate that women constituted only 19.7 percent of the positions on the boards. Regression analysis, controlling for size of …
“I Will Change The World”: The Intersection Of Social Change And Male College Athletes’ Leadership Perspectives, Rhema D. Fuller, C. Keith Harrison, S. Malia Lawrence, Jeff Eyanson, Danielle Mccardle
“I Will Change The World”: The Intersection Of Social Change And Male College Athletes’ Leadership Perspectives, Rhema D. Fuller, C. Keith Harrison, S. Malia Lawrence, Jeff Eyanson, Danielle Mccardle
International Journal of Exercise Science
International Journal of Exercise Science 10(6): 845-856, 2017. Historically, men have been characterized as task-oriented leaders who are motivated by desires for autonomy, wealth, and power (17, 33). However, these “masculine” views of leadership might not accurately capture the leadership motivations of Millennial males as the views were developed in previous generations (4). Given the commitment of many Millennials towards socially responsible attitudes and behaviors (18, 25), we utilized a qualitative research design to examine the influence of social change on the leadership motivations of Millennial male intercollegiate athletes. In doing so, we found participants were motivated to lead in …
Does Time Heal All Wounds? A Case Study On Rival Perceptions Before And After Conference Realignment, Cody T. Havard, Daniel L. Wann, Timothy D. Ryan, Norman O'Neal
Does Time Heal All Wounds? A Case Study On Rival Perceptions Before And After Conference Realignment, Cody T. Havard, Daniel L. Wann, Timothy D. Ryan, Norman O'Neal
International Journal of Exercise Science
International Journal of Exercise Science 10(6): 823-832, 2017. The current longitudinal case study investigated how conference realignment and beginning new annual competitions impacted fan rival perceptions for fans of the Texas A&M Aggies, Missouri Tigers, and Texas Christian University Horned Frogs. In particular, fan rival perceptions before and after conference realignment were compared to determine if significant differences were present. Findings indicate that history plays an important role in rivalry as fans of teams sharing long-standing rivalries with schools in their previous conference (i.e., Texas A&M/Texas and Missouri/Kansas) did not differ in their rival perceptions before or after conference realignment. …