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Mitsumasa Miyashita

Nearly a half century has passed since the International Society of Biomechanics (ISB) was officially established at the Pennsylvania State University in 1973. From 1957 to 1978, biomechanics studies in the field of sports and physical education in Japan had been conducted under the name of

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Blake Bennett and Glenn Fyall

cultural elements influencing the future conceptualisation, interpretation and utility of the global coaching frameworks, such as the ISCF and the ICDF. In this sense, this paper explores Japanese sociocultural factors that may influence and have implications for the ISCF and the ICDF ( International

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Hiroko Kukihara, Niwako Yamawaki, Michiyo Ando, Yoshiko Tamura, Kumi Arita, and Emiko Nakashima

adults aged 60 years and older may jump to 21.4%, which is more than double their current percentage. In the case of Japan, the older adults (60 years and older) portion of the population rose from 18% in 1980 and is estimated to rise to approximately 34% by 2030 ( Auerbach, Kotlikoff, Hagemann

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Yoshiyuki Ohno, Rie Aoki, Akiko Tamakoshi, Takashi Kawamura, Kenji Wakai, Shuji Hashimoto, Norito Kawakami, and Masaki Nagai

To explore successful aging and high social activity in old age, data from a self-administered survey of 5,239 participants aged 65 years or more were analyzed. The questionnaire inquired about physical conditions and lifestyles of Japanese seniors during middle age and their present social activities in 4 regions of Japan in 1993. The authors first defined social activities and then developed a social-activity measure. Next, they examined the association between present social activity and physical conditions and lifestyles during middle age. Data analysis revealed that the most socially active seniors rated themselves as healthy and physically active during middle age. Socially active seniors differed from less active seniors: They had participated in more hobbies during middle age, had higher levels of education, and had had a more varied diet between the ages of 30 and 50. The data suggest that maintaining general health habits and lifestyles from middle age on is important for successful aging and high social activity in old age.

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Sachiko Inoue, Takashi Yorifuji, Masumi Sugiyama, Toshiki Ohta, Kazuko Ishikawa-Takata, and Hiroyuki Doi

Few epidemiological studies have examined the potential protective effects of physical activity on insomnia. The authors thus evaluated the association between physical activity and insomnia in a large population-based study in Shizuoka, Japan. Individual data were obtained from participants in an ongoing cohort study. A total of 14,001 older residents who completed questionnaires were followed for 3 yr. Of these, 10,211 and 3,697 participants were eligible for the cross-sectional and longitudinal analyses, respectively. The authors obtained information about the frequency of physical activity and insomnia. Then, the adjusted odds ratios and 95% confidence intervals between physical activity and insomnia were estimated. Habitual physical activity was related to lower prevalence of insomnia. Frequent physical activity also reduced the incidence of insomnia, especially difficulty maintaining sleep. For elderly people with sufficient mobility and no preexisting disease, high-frequency physical activity (e.g., 5 or more days/wk) may help reduce insomnia.

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Benjamin H. Nam, Sangback Nam, Adam Love, Takuya Hayakawa, Rachael C. Marshall, and Kyung Su Jung

Among ethnic Koreans, marathon running has long been important, as it has promoted national cohesion and Korean identity during tumultuous times. The success of Korean runners in the international sporting arena began at the 1932 Olympic Games in Los Angeles, where, running under the Japanese flag

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Grace Yan and Nicholas M. Watanabe

After the South Korean men’s soccer team beat its Japanese counterpart in the bronze-medal match at the 2012 London Olympics, South Korean player Park Jung-Woo celebrated with a banner that displayed Dokdo is our land. Dokdo is called the Liancourt Rocks in English, the sovereignty over which has been an ongoing point of contention between South Korea and Japan. This study conducts a critical discourse analysis to examine media representations of Park’s banner celebration, as well as the ensuing discussion in major Korean and Japanese newspapers. The analysis reveals a contrastive picture: The Korean media vocally approached Park’s behavior as an emotional response of self-righteous indignation and quickly enacted memories of Korea’s victimhood in World War II to make justifications, whereas the Japanese media participated in a relatively disengaged absence. Japan’s silence disclosed a glimpse into its rich postwar history of social conflict and political resistance. Such contrast is also indicative of how sport media can be engaged in nuanced social contexts, generating representations that serve nation-state regimes situated in different political dynamics.

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Gohei Kato, Tomoyuki Arai, Yasuhiro Morita, and Hiroaki Fujita

The rapid aging of the population is being seen in many parts of the world ( Beard, Officer, & Cassels, 2016 ). The same trend is also seen in Japan, where in 2018, the population aged 65 years and older was 35.15 million, making up 27.7% of the total population ( Cabinet Office, Government of

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Nobuaki Moriyama, Hajime Iwasa, and Seiji Yasumura

( World Health Organization, 2009 ), and it is also a major cause of noncommunicable diseases ( Lee et al., 2012 ). Physical activity has various health benefits for older adults, including improved physical and mental function ( McPhee et al., 2016 ). In the Japanese context, the Ministry of Health

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Julien Tripette, Haruka Murakami, Hidemi Hara, Ryoko Kawakami, Yuko Gando, Harumi Ohno, Nobuyuki Miyatake, and Motohiko Miyachi

changes over a period of 1 year in a sample of 1,032 Japanese women and men. Methods Protocol Design The subjects included in the present analysis were participants of the Nutrition and EXercise Intervention Study (NEXIS,, ID: NCT00926744), which is a multiyear longitudinal research