Impact of COVID-19 and related emergency measures on mental and lifestyle changes in Japanese college football players by Hideaki Waki, Masaaki Koido, Yoichi Minakawa, Shogo Miyazaki, Naruto Yoshida

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Effect of seam characteristics on critical Reynolds number in footballs by Kiyoshi NAITO, Sungchan HONG, Masaaki KOIDO, Masao NAKAYAMA, Keiko SAKAMOTO, Takeshi ASAI

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Peak risk of SARS-CoV-2 infection within 5 s of face-to-face encounters: an observational/retrospective study by Takeshi Asai, Erina Kurosaki, Kaoru Kimachi, Masao Nakayama, Masaaki Koido, Sungchan Hong

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Prevalence and burden of injuries and illnesses in men’s university football players: a prospective cohort study in 2020 competitive season by Sonoko Mashimo, Naruto Yoshida, Takaaki Hogan, Hideaki Waki, Yoichi Minakawa, Shogo Miyazaki, Masaaki Koido

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Comparison of Biomechanical Factors among Straight, Curve and Knuckle Kicking Motions in Soccer by Kaoru Kimachi, Richong Liu, Masaaki Koido, Sungchan Hong, Shuji Shimonagata, Masao Nakayama, Takeshi Asai

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Measurements of the Flight Trajectory of a Spinning Soccer Ball and the Magnus Force Acting on It by Takeshi Asai, Kaoru Kimachi, Richong Liu, Masaaki Koido, Masao Nakayama, John Eric Goff, Sungchan Hong

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Lifestyle related changes with partially hydrolyzed guar gum dietary fiber in healthy athlete individuals – A randomized, double-blind, crossover, placebo-controlled gut microbiome... by Mahendra P. Kapoor, Masaaki Koido, Mikiko Kawaguchi, Derek Timm, Makoto Ozeki, Mari Yamada, Takayuki Mitsuya, Tsutomu Okubo

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