Context: Guardian Caps (GCs) are currently the most popular external helmet add-on designed to reduce the magnitude of head impacts experienced by American football players. Guardian Caps have been endorsed by influential professional organizations; however, few studies evaluating their efficiency are publicly available.
Objective: To present preliminary on-field head kinematics data for National Collegiate Athletic Association (NCAA) Division I American football players using instrumented mouthguards through closely matched preseason workouts with and without GCs.
Design: Case series.
Setting: The 2022 American football preseason.
Patients Or Other Participants: Twenty-five male NCAA Division I student-athletes participating in American football completed some portion of the 6 workouts included in this study. Of the 25 participants, 7 completed all 6 workouts using their instrumented mouthguards.
Main Outcome Measure(s): Peak linear acceleration (PLA), peak angular acceleration (PAA), and total impacts were collected via instrumented mouthguards during 3 preseason workouts using traditional helmets (TRAD condition) and 3 using a TRAD and GCs (GC condition). The TRAD and GC values for PLA, PAA, and total impacts were evaluated using analyses of variance.
Results: No difference was present between the collapsed mean values for the entire sample between the TRAD and GC conditions for PLA (TRAD = 16.3g ± 2.0g, GC = 17.2g ± 3.3g, P = .20), PAA (TRAD = 992.1 ± 209.2 rad/s2, GC = 1029.4 ± 261.1 rad/s2, P = .51), or the total number of impacts (TRAD = 9.3 ± 4.7, GC = 9.7 ± 5.7, P = .72). Similarly, no difference was observed between the TRAD and GC conditions for PLA (TRAD = 16.1g ± 1.2g, GC = 17.2g ± 2.79g, P = .32), PAA (TRAD = 951.2 ± 95.4 rad/s2, GC = 1038.0 ± 166.8 rad/s2, P = .29), or total impacts (TRAD = 9.6 ± 4.2, GC = 9.7 ± 5.04, P = .32) between sessions for the 7 players who completed all 6 workouts.
Conclusions: These data suggested no difference in head kinematics data (PLA, PAA, and total impacts) when GCs were worn. Therefore, GCs may not be effective in reducing the magnitude of head impacts experienced by NCAA Division I American football players.
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http://dx.doi.org/10.4085/1062-6050-0136.23 | DOI Listing |
Ir J Med Sci
December 2024
Amsterdam UMC location University of Amsterdam, Department of Orthopedic Surgery and Sports Medicine, Meibergdreef 9, Amsterdam, The Netherlands.
Background: Knee injuries are common among elite intercounty Gaelic games players (collectively GAA players).
Aims: The primary aim was to examine knee pain, function, and quality of life in retired elite male GAA players. Secondary objectives were to (i) report the incidence of previous knee surgery and total knee replacement, (ii) assess medication usage, and (iii) investigate any associations between a history of knee injury and/or knee surgery and knee pain, function, and quality of life among retired elite male GAA players.
Sports (Basel)
December 2024
Institute of Coaching and Performance, School of Health, Social Work and Sport, University of Central Lancashire, Preston PR1 2HE, UK.
Purpose: To investigate the influence of upper body (UB) strength qualities and UB strength training on the performance of high-intensity running and jumping actions and to identify gaps and recommendations for future research.
Methods: A systematic search using the PRISMA Scoping Review protocol was conducted in February 2024 using PubMed, Scopus, and ICTRP. Studies eligible for inclusion were those that reported associations between UB or trunk maximal strength qualities (e.
Sports (Basel)
December 2024
Portugal Football School, Portuguese Football Federation, FPF, 1495-433 Oeiras, Portugal.
This preliminary study examined the effects of playing walking football with and without a goalkeeper (GK) on physiological, physical, technical, and perceptual variables in older men. Twenty participants (67 ± 4.7 years) engaged in two five vs.
View Article and Find Full Text PDFSports (Basel)
December 2024
The Faculty of Teacher Education and Arts, Nord University, Høyskolevegen 27, 7600 Levanger, Norway.
The aim of this study was to evaluate the effect of 11 additional soccer training sessions among youth soccer players according to their performance in a skill course. A total of 90 participants, aged 9 to 12, were randomly assigned to either an intervention group (IG) (n = 54) or a control group (CG) (n = 36) and have validated data. The trainings focused upon enhancing ball mastery and decision-making and included a combination of one vs.
View Article and Find Full Text PDFSports (Basel)
December 2024
Department of Physical Education and Sports, Faculty of Education and Sport Sciences, University of Granada, Melilla Campus, ES-52071 Melilla, Spain.
Background: The evolution of women's football over the past three decades has been remarkable in terms of development, visibility, and acceptance, transforming into a discipline with growing popularity and professionalization. Significant advancements in gender equality and global visibility have occurred, and the combination of emerging talent, increasing commercial interest, and institutional support will continue to drive the growth and consolidation of women's football worldwide.
Methods: The purpose of this study was to present a bibliometric analysis of articles on the evolution of women's football in terms of scientific production as well as its causes and motivations over the past 30 years (1992-2024).
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