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  1. Article ; Online: History, Knowledge, and Education of Sport-Related Concussion Among College Athletes in Japan.

    Tashima, Chihiro / Otomo, Mana / Hosokawa, Yuri

    Journal of athletic training

    2024  

    Abstract: Context: Limited studies have investigated sports-related concussion (SRC) awareness and knowledge among athletes in Japan. SRC research is scarce among Asians compared to North American and European cohorts.: Objective: We aimed to examine previous ... ...

    Abstract Context: Limited studies have investigated sports-related concussion (SRC) awareness and knowledge among athletes in Japan. SRC research is scarce among Asians compared to North American and European cohorts.
    Objective: We aimed to examine previous SRC history, level of SRC knowledge, and previous exposure to SRC education among collegiate athletes in Japan by the level of contact and access to medical staff.
    Design: Cross-sectional study.
    Setting: Single university study in XXX.
    Patients or other participants: A total of 2,103 athletes (48 varsity teams) were contacted to participate in an anonymous survey. Data from athletes with (1) SRC history in the past 3 months, (2) persistent SRC symptoms, (3) non-traditional sports, and (4) incomplete surveys were excluded. As a result, data from 593 athletes representing 43 varsity teams were included in this analysis.
    Main outcome measures: Outcome measures were level of contact (contact [CON], limited contact [LTD], noncontact [NC]), access to medical staff (MEDYES, MEDNO), SRC knowledge (maximum score of 49), and previous SRC history (self-report; yes, no), and previous SRC education (self-report; EDUYES, EDUNO).
    Results: The average SRC knowledge total score was 33.4 ± 6.1 (range, 18-48). Knowledge score in CON was higher than LTD and NC (p<.001), and in MEDYES than MEDNO (median, MEDyes= 34.0, MEDNO= 32.0; U=27841.5, p<.001). SRC history was statistically different by the level of contact (χ2 [2] =27.95, p<.001) and by access to medical staff (χ2 [1] =4.5, p=.034). The presence of SRC history and previous SRC education contributed to higher SRC knowledge, independent of the level of contact and access to medical staff (p<.001).
    Conclusions: Japanese athletes who participated in CON sports had a higher prevalence of SRC history, higher knowledge, and greater exposure to SRC education than those in LTD or NC. Access to medical staff was associated with higher SRC knowledge.
    Language English
    Publishing date 2024-01-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2070051-9
    ISSN 1938-162X ; 1062-6050
    ISSN (online) 1938-162X
    ISSN 1062-6050
    DOI 10.4085/1062-6050-0382.23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Question Format Matters: Do Athletes Really Know the Signs and Symptoms of a Sport-Related Concussion?

    Hosokawa, Yuri / O'Connor, Siobhan / Tashima, Chihiro / Otomo, Mana / Schmitt, Ara / Beidler, Erica

    Journal of athletic training

    2023  Volume 58, Issue 6, Page(s) 573–578

    Abstract: Authors of previous studies commonly used a multiselect checklist method to assess an athlete's ability to recognize true sport-related concussion (SRC) signs and symptoms (S&S) among incorrect distractor options. However, this may overinflate the ... ...

    Abstract Authors of previous studies commonly used a multiselect checklist method to assess an athlete's ability to recognize true sport-related concussion (SRC) signs and symptoms (S&S) among incorrect distractor options. However, this may overinflate the evaluation of participants' knowledge because the multiselect method does not test athletes' ability to retrieve knowledge from their long-term memory. To examine this hypothesis, we sent an online survey to registered members of the Japan Lacrosse Association (n = 8530) to assess differences in reported SRC S&S by open-ended-question and multiselect formats. We also evaluated whether previous exposure to SRC education and a history of SRC influenced athletes' SRC S&S knowledge. The numbers and proportions of responses were calculated using descriptive statistics. The Pearson correlation was calculated to analyze the relationship between scores from the 2 question formats. Unpaired-samples t tests were conducted to compare the mean scores for each question format by previous SRC education and history of diagnosed SRC. Odds ratios were computed to express the relationship between the proportion of correct answers by question format per symptom. The response rate of the survey was 35.9% (n = 3065), and scores from the 2 question formats were correlated (r = 0.34, 95% CI = 0.31, 0.37; P < .001). For both question formats, athletes with previous exposure to SRC education and a history of SRC had a greater number of correct answers; however, the mean differences were trivial. Researchers and clinicians should acknowledge the difference between multiselect (recognition) and open-ended (free recall) formats when assessing one's understanding of SRC and managing athletes with a suspected SRC.
    MeSH term(s) Humans ; Athletic Injuries/diagnosis ; Athletic Injuries/complications ; Brain Concussion/diagnosis ; Brain Concussion/etiology ; Athletes ; Racquet Sports ; Japan
    Language English
    Publishing date 2023-01-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2070051-9
    ISSN 1938-162X ; 1062-6050
    ISSN (online) 1938-162X
    ISSN 1062-6050
    DOI 10.4085/1062-6050-0233.22
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Case Report: Countermeasures Against Heat and Coronavirus for Japanese Athletes at the Tokyo 2020 Olympics and Paralympic Games.

    Nakamura, Mariko / Naito, Takashi / Saito, Tatsuya / Takahashi, Akari / Muraishi, Koji / Hakamada, Noriko / Otomo, Mana / Iizuka, Satoshi / Nakamura, Daisuke / Takahashi, Hideyuki

    Frontiers in sports and active living

    2022  Volume 4, Page(s) 878022

    Abstract: The Tokyo 2020 Olympics and Paralympic Games were held in the hottest environment in the history of the games. Additionally, the worldwide coronavirus disease 2019 (COVID-19) pandemic necessitated daily polymerase chain reaction (PCR) testing during the ... ...

    Abstract The Tokyo 2020 Olympics and Paralympic Games were held in the hottest environment in the history of the games. Additionally, the worldwide coronavirus disease 2019 (COVID-19) pandemic necessitated daily polymerase chain reaction (PCR) testing during the games, wearing a mask became mandatory publicly, and it was an unheard and unique Olympic with no spectators. Heat acclimation, hydration, and body cooling are essential for safe and high-performance activities in hot environments. In 2015, the Japan Institute of Sports Sciences launched the "Heat Countermeasure Project" to conduct experiments and practical research on heat countermeasures and investigate issues related to heat countermeasures in each athletic event. The results obtained were proposed to various Japan national sports teams, and support for heat countermeasures for the Tokyo 2020 games was promoted in consultation with national federations. Furthermore, due to the COVID-19 pandemic, infectious disease countermeasures for the Tokyo 2020 Games during support were a must. Moreover, athletes, coaches, and team staff could not avoid implementing heat countermeasures while adopting measures against infectious diseases. This study aimed to clarify the issues faced with heat countermeasures and report on heat acclimation training and cooling support efforts, considering measures against infectious diseases.
    Language English
    Publishing date 2022-06-06
    Publishing country Switzerland
    Document type Case Reports
    ISSN 2624-9367
    ISSN (online) 2624-9367
    DOI 10.3389/fspor.2022.878022
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Is Increased Kicking Leg Iliopsoas Muscle Tightness a Predictive Factor for Developing Spondylolysis in Adolescent Male Soccer Players?

    Takei, Seira / Torii, Suguru / Taketomi, Shuji / Iwanuma, Soichiro / Tojima, Michio / Otomo, Mana / Iizuka, Satoshi / Tanaka, Sakae

    Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine

    2021  Volume 32, Issue 2, Page(s) e165–e171

    Abstract: Objective: To identify predictive risk factors of lumbar stress (LS) fracture developing from an asymptomatic stress reaction of the pedicle among adolescent male soccer players.: Design: Prospective cohort study.: Setting: Amateur Japanese ... ...

    Abstract Objective: To identify predictive risk factors of lumbar stress (LS) fracture developing from an asymptomatic stress reaction of the pedicle among adolescent male soccer players.
    Design: Prospective cohort study.
    Setting: Amateur Japanese adolescent male soccer team.
    Participants: Japanese adolescent male soccer players (n = 195) aged 12 to 13 years.
    Assessment of risk factors independent variables: Height, body weight, body mass index, muscle tightness of both lower extremities (iliopsoas, hamstrings, and quadriceps), lumbar bone mineral content, developmental age, and lumbar lordosis angle were measured as baseline measurements.
    Main outcome measures dependent variable: Players who were diagnosed with an asymptomatic stress reaction of the lumbar spine pedicle at baseline were followed; extension-based lumbar pain was defined 1 year after the baseline. The players were assigned to the LS fracture or control (CON) group at follow-up.
    Results: At baseline, 40 boys were diagnosed with an asymptomatic stress reaction of the lumbar spine pedicle. The difference in muscle tightness between the kicking leg and supporting leg was significantly different (P = 0.012) between the LS (n = 16) and CON (n = 22) groups. Increase in iliopsoas muscle tightness in the kicking leg was a predictive risk factor of developing extension-based lumbar pain after adjusting for developmental age and body mass index (odds ratio, 1.54; 95% confidence interval, 1.05-2.27).
    Conclusions: Development of extension-based lumbar pain from an asymptomatic stress reaction of the pedicle among adolescent male soccer players was associated with increased iliopsoas muscle tightness of the kicking leg relative to that of the supporting leg.
    MeSH term(s) Adolescent ; Cohort Studies ; Fractures, Stress/epidemiology ; Fractures, Stress/etiology ; Humans ; Japan/epidemiology ; Leg/physiology ; Low Back Pain/etiology ; Lumbar Vertebrae/injuries ; Male ; Muscle Tonus ; Prospective Studies ; Risk Factors ; Soccer/physiology ; Spinal Fractures/epidemiology ; Spinal Fractures/etiology
    Language English
    Publishing date 2021-03-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1062530-6
    ISSN 1536-3724 ; 1050-642X
    ISSN (online) 1536-3724
    ISSN 1050-642X
    DOI 10.1097/JSM.0000000000000920
    Database MEDical Literature Analysis and Retrieval System OnLINE

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