A Plague of Their Own: Injury Incidence Remains Elevated in the 2021 Major League Baseball Season Compared to Pre-COVID-19 Seasons by Brooks N Platt, Breanna M Sullivan, Shawn Dripchak, Timothy L Uhl, Aaron D Sciascia, William Kibler, Austin V Stone

“…This signifies that injury incidence remained elevated in the 2021 season despite resumption of preseason training and a regular season. # Level of Evidence 3…”
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COVID-19 Return to Sport: NFL Injury Prevalence Analysis by Troy B Puga, Joshua Schafer, Prince N Agbedanu, Kevin Treffer

“…MethodsOfficial injury reports from each team were counted during the 17-week regular season of each year (2018, 2019, and 2020). The data were analyzed using an unpaired t test to compare the injury prevalence between each of the three seasons. …”
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Epidemiology of Contact and Non-Contact Ankle Injuries in Collegiate Athletes by Javier Z. Guzman MD, Kevin K. Chen, Jimmy J. Chan MD, Ettore Vulcano MD

“…A majority of ankle injuries occurred during the regular season with sprains, strains, contusions, and fractures representing the most common types of injuries. …”
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Initial symptom presentation after high school football-related concussion varies by time point in a season: an initial investigation by Benjamin L. Brett, Andrew W. Kuhn, Aaron M. Yengo-Kahn, Zachary Y. Kerr, Christopher M. Bonfield, Gary S. Solomon, Scott L. Zuckerman

“…Timing (early, mid, and late season) of SRC was based on median dates for the start of the pre-season, regular season, and playoffs of each states’ football schedules. …”
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Epidemiology of Achilles Tendon Injuries in Collegiate Level Athletes in the United States by Jimmy J. Chan MD, Kevin K. Chen, Javier Z. Guzman MD, Ettore Vulcano MD

“…Reinjury rate was 11.0% (N=28). 61.2% of all injuries occurred during the regular season (N=156) with 36.0% (N=92) and 2.7% (N=7) occurring in pre- and post- season, respectively. …”
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Decreased Performance and Return to Play Following Anterior Cruciate Ligament Reconstruction in National Football League Wide Receivers by Colin J. Burgess, D.O., Erik Stapleton, D.O., M.S., Kenneth Choy, B.A., Cesar Iturriaga, M.D., Randy M. Cohn, M.D.

“…Results: Of the wide receivers that met the inclusion criteria, 9 of 29 (31%) did not RTP in a regular season game following ACL reconstruction. For players who did RTP, 20 of 29 (69%), the average time was 10.9 months (331.4 ± 41.6 days). …”
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Publicly available data sources in sport-related concussion research: a caution for missing data by Abigail C. Bretzin, Bernadette A. D’Alonzo, Elsa R. van der Mei, Jason Gravel, Douglas J. Wiebe

“…Findings From 2015–2019, SRC counts from published EHR record data ranged from 135–192 during the regular season, whereas SRC counts ranged from 102–194 and 69–202 depending on the publicly available data source. …”
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Shoulder instability, performance, and return to play in National Hockey League players by Hasani W. Swindell, MD, Kyle L. McCormick, MD, Liana J. Tedesco, MD, Carl L. Herndon, MD, Christopher S. Ahmad, MD, William N. Levine, MD, Charles A. Popkin, MD

“…Results: A total of 57 players experienced 67 shoulder instability events with 98.5% of players returning to play after an average of 26.3 ± 20.8 regular season games missed. Surgery was performed in 47.8% of players with no recurrent injuries postoperatively. …”
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Incidence reporting via online high school concussion surveillance by certified athletic trainers and school nurses, 2015–2018 by Lauren Gonzalez, Laura E. Jones, Maryanne Fakeh, Nimit Shah, Joseph A. Panchella, Derek G. Shendell

“…Athletic trainers completed 86% of the reports while nurses completed 11% (position or title of 3%, or n = 7, were not disclosed); the values were similar when considering only fall pre-season and regular season sports (88, 10, 2%, respectively). On average, across the three school years, athletic trainers reported about 3.5 symptoms per report while nurses reported 2.7 (values in fall seasons only were 3.7 and 3.1, respectively.) …”
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Steady-State Visual-Evoked Potentials as a Biomarker for Concussion: A Pilot Study by Daryl H. C. Fong, Adrian Cohen, Philip Boughton, Paul Raftos, Joseph E. Herrera, Neil G. Simon, David Putrino

“…Sixty-five rugby union players were tested during their regular season and were stratified into healthy, concussed, and recovered groups based on clinical examination. …”
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Incidence of Acute Achilles Repair Surgeries in the Peri-Pandemic COVID Era: And Parallels to the Current 2021-22 NFL Season by Mohammad T. Azam BS, Andrew S. Bi, Michael J. Alaia, Laith M. Jazrawi, Guillem Gonzalez-Lomas, John G. Kennedy MD, FRCS(Orth)

“…Within the NFL, the number of AATRs resulting in an IR stint increased every regular season from 2019-2020: 21.2% (n = 11), to 2020-2021: 32.7% (n = 17), to this past 2021-2022 season: 46.2% (n = 24). …”
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Bilateral Achilles Tendon Ruptures in the NFL by Aman Chopra BA, Aarav S. Parekh, Deepak Ramanathan MD, Selene G. Parekh MD, MBA

“…Specific dates for the first ATR (ATR1), return to play after ATR1, second ATR (ATR2), return to play after ATR2, as well as most recent game played were recorded. NFL preseason, regular season, and postseason (playoff, wild card, Pro Bowl, and Super Bowl) games were used to tabulate the total number of games missed or played. …”
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Ingesta dietética de hierro y su deficiencia en las jugadoras de voleibol femenino de élite Dietary iron intake and deficiency in elite women volleyball players by J. Mielgo-Ayuso, A. Urdampilleta, J. M. Martínez-Sanz, J. Seco

“…Objective: We analyzed the FS and IST of 10 JVF a team of Spanish SuperLeague (26.6 ± 5.9 years and height 178.05 ± 8.7 cm) in two moments of the season: Week 0 (pre-start of preseason) and week 11 (after 11 weeks of training and 6 games of the regular season). Also calculated Fe intake in this period with consumption frequency questionnaire developed and tested with food dietary records of 7 days. …”
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Tourism carrying capacity in marine protected area: A case study of Tunku Abdul Rahman Park, Kota Kinabalu, Sabah by Nasrulhakim Hj. Maidin

“…Since the tourist's arrival shows fluctuation throughout the year, this study considered three tourism seasons; Regular Season, High Season and Festive Season. Manukan island, which offers the largest Land and Ocean-based area, recorded the highest number of Carrying Capacity with 1,464 and 822 tourists, respectively. …”
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Eastward Jet Lag is Associated with Impaired Performance and Game Outcome in the National Basketball Association by Josh Leota, Daniel Hoffman, Daniel Hoffman, Mark É. Czeisler, Mark É. Czeisler, Mark É. Czeisler, Mark É. Czeisler, Luis Mascaro, Sean P.A. Drummond, Clare Anderson, Shantha M.W. Rajaratnam, Shantha M.W. Rajaratnam, Shantha M.W. Rajaratnam, Shantha M.W. Rajaratnam, Elise R. Facer-Childs, Elise R. Facer-Childs, Elise R. Facer-Childs

“…The aim of this study was to examine whether the direction of travel-related jet lag is associated with performance in the National Basketball Association (NBA), and if so, to explore potential mechanisms.Methods: Ten seasons comprising of 11,481 games of NBA data from the 2011/2012 to the 2020/2021 regular season were analyzed using multi-level mixed models with one fixed factor (three levels; jet lag direction: eastward vs westward vs no jet lag) and three random factors (team, opponent, game time). …”
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Relação entre número de passes e assistências na liga nacional de basquetebol: chave para o sucesso? by Otávio Augusto Troyano de Castro, Natália Almeida Rodrigues, Filipe Antônio de Barros Sousa

“…To fulfill this aim, the objective of this study was to analyze the relationship between the number of pass performed with the production of assists in a game, and whether both exert a direct influence on game results. Videos of 56 regular season matches of two teams with statistically different assists per game in the Novo Basquete Brasil (NBB) competition were used. …”
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COVID-19 National Football League (NFL) Injury Analysis: Follow-Up Study by Troy B Puga, Joshua Schafer, Grace Thiel, Nicholas Scigliano, Tiffany Ruan, Andres Toledo, Prince N Agbedanu, Kevin Treffer

“…A previous study, titled COVID-19 Return to Sport: NFL Injury Prevalence Analysis ObjectiveThe objective of this study is to perform a follow-up study to COVID-19 Return to Sport: NFL Injury Prevalence Analysis MethodsTo determine if there was change in the number of injuries for each season, injury tallies collected from the 17-week-long 2018, 2019, and 2020 NFL regular seasons were compared with those from the 18-week-long 2021 and 2022 NFL regular seasons. …”
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Converging seasonal prevalence dynamics in experimental epidemics by Hottinger Jürgen W, Lass Sandra, Fabbro Thomas, Ebert Dieter

“…<p>Abstract</p> <p>Background</p> <p>Regular seasonal changes in prevalence of infectious diseases are often observed in nature, but the mechanisms are rarely understood. …”
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“Hot Hand” in the National Basketball Association Point Spread Betting Market: A 34-Year Analysis by Benjamin Waggoner, Daniel Wines, Brian P. Soebbing, Chad S. Seifried, Jean Michael Martinez

“…This study examines these effects for 34 regular seasons in the National Basketball Association (NBA). …”
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Continuous measurement of atmospheric CH4 concentration at Syowa Statio by Shuhji Aoki

“…A diurnal variation of CH_4 concentration was not observable throughout the year, but irregular variations with periods of a few days and an amplitude of about 5ppbv at most were sometimes observed. A regular seasonal cycle of CH_4 concentration with a winter maximum and a summer minimum was clearly seen. …”
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