Journal of Nihon University Medical Association
Online ISSN : 1884-0779
Print ISSN : 0029-0424
ISSN-L : 0029-0424
Volume 80, Issue 2
Journal of Nihon University Medical Association
Displaying 1-10 of 10 articles from this issue
Topics in COVID-19:
Special Articles:
  • Daisuke Kitano
    Article type: review-article
    2021 Volume 80 Issue 2 Pages 55-59
    Published: April 01, 2021
    Released on J-STAGE: June 26, 2021
    JOURNAL FREE ACCESS

    The global COVID-19 pandemic has changed our lifestyles. Self-constrained life, as a part of the “stay-home”approach to combatting COVID-19, has also changed the incidence of diseases. The number of patients withischemic heart disease and heart failure requiring treatment has decreased. It is well known that exercise can prevent and improve many lifestyle-related diseases. In competitive athletes, it is also known that exercise can altercardiac function for physiological adaptation. This section will review the relationship between exercise and thecardiovascular system.

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  • –The Role and Significance of Orthopaedic Surgeon in Sports Medicine–
    Yusuke Morimoto
    Article type: review-article
    2021 Volume 80 Issue 2 Pages 61-65
    Published: April 01, 2021
    Released on J-STAGE: June 26, 2021
    JOURNAL FREE ACCESS

    The world of sports injuries includes traumatic injuries and overuse syndrome.Typical traumatic injuries are sprains (ligament injuries), including ankle sprains and anterior cruciate ligament(ACL) knee injuries. If primary treatment of sprains is not performed properly, secondary injury caused by jointinstability often occurs, which can lead to osteoarthritis.Examples of overuse syndrome include tennis elbow and jumper’s knee. Overuse syndrome involves the inflammation of the surrounding enthesis. Improper treatment of such cases can lead to chronic enthesopathy.What is important in treating sports injuries is not only evaluating and treating the condition itself but alsomaintaining the overall physical stature of the athlete. Such care must involve both the treatment of the conditionand the prevention of recurrence.The knowledge acquired in sports medicine, including treatment methods and strategies for improving physicalfunction, can be widely applied in general medical care. This is the significance of sports orthopedics.

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  • Fumihisa Chishima
    Article type: review-article
    2021 Volume 80 Issue 2 Pages 67-70
    Published: April 01, 2021
    Released on J-STAGE: June 26, 2021
    JOURNAL FREE ACCESS

    The year 2020 was to be the year of the Tokyo Olympics, but the event was postponed due to controlling thetransmission of COVID-19, and now the battle against COVID-19 is underway for the 2021 Olympics. There is nodoubt that not only top athletes aiming for the Olympics but also the entire nation is becoming more interested inbecoming involved in sports and improving their health. Conventional sports theory has developed without muchconceptualization of gender differences between men and women, which has led to many problems that need to beaddressed medically. In the field of gynecology, the importance of lifelong health care for women also calls for amedical approach to maintaining women’s health in sports. In this paper, I would like to discuss the particularitiesof women’s health problems among athletes and consider care for their lifelong health. The American College ofSports Medicine lists (1) low energy availability with or without disordered eating, (2) menstrual dysfunction, and(3) low bone mineral density as the most common health problems among female athletes and refers to these as “thefemale athlete triad”. Stress fractures have been linked to this triad.In the case of bone loss and amenorrhea caused by low energy availability, the important treatment is to increase energy intake, reduce energy consumption by training, and increase available energy. Hormone therapyshould be considered if correcting energy deficiency does not work or if weight gain is difficult due to the natureof the competition. Oral contraceptives/low dose estrogen progestin and progestin are not banned substances, sothey can be used by athletes. When considering prescribing a drug, physicians can check the Global DRO JAPANwebsite to ensure that the drug is not prohibited.

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  • Yoshihiro Yuji, Masahiro Suzuki
    Article type: review-article
    2021 Volume 80 Issue 2 Pages 71-74
    Published: April 01, 2021
    Released on J-STAGE: June 26, 2021
    JOURNAL FREE ACCESS

    Sports psychiatry was first introduced in the medical literature at the end of the 1980s. This relatively newacademic field has two aims: 1) to prevent and treat mental problems in athletes and 2) to apply physical exerciseand sports to psychiatric practice as a treatment. Although elite athletes tend to be regarded as very mentally toughindividuals, they are at great risk of developing some mental disorders, such as depression and eating disorders.It has been reported that athletes competing in individual sports are more prone to depressive symptoms than athletes competing in team sports. Eating disorders often occur in aesthetic sports (e.g., figure skating and rhythmicgymnastics), endurance sports (e.g., marathons), and weight-class sports (e.g., wrestling and boxing). In additionto these common mental disorders, athletes are faced with sport-specific mental problems, such as overtrainingsyndrome, muscle dysmorphia, and doping. Although it is now accepted that mental disorders can also occur inelite athletes, for many athletes themselves, mental disorders are still associated with increased (self-) stigma.Therefore, destigmatization is one of the major issues that sports psychiatry should tackle. In this paper, theauthors introduced recent topics in sports psychiatry.

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  • Megumi Matsumoto
    Article type: review-article
    2021 Volume 80 Issue 2 Pages 75-80
    Published: April 01, 2021
    Released on J-STAGE: June 26, 2021
    JOURNAL FREE ACCESS

    When the amount of physical activity increases due to sports, it is necessary to consider the appropriate amountof energy and intake of each nutrient commensurate with the amount of activity. In addition, elite athletes withrigorous training need to be aware of their excess or deficiency of certain nutrients to prevent injuries and illnesses.In particular, the chronic lack of energy intake of athletes has been clearly shown to be related to future diseases,which is a major problem. On the other hand, research is progressing on how to devise nutrient intake accordingto training and game schedules, and supplements for the purpose of improving performance are also being actively developed. There are many problems with the use of supplements, such as the relationship with doping controland a lack of education for junior athletes. In the future, nutrition at sports sites will require more personalizedsupport, and it is hoped that a large amount of evidence will be accumulated.

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Lecture:
Case Reports:
  • Mayuki Hori, Tomomi Fujii, Saki Uchida, Tadashi Harada, Takamitsu Yama ...
    Article type: case-report
    2021 Volume 80 Issue 2 Pages 91-95
    Published: April 01, 2021
    Released on J-STAGE: June 26, 2021
    JOURNAL FREE ACCESS

    A woman in her 30s had experienced three episodes of an intracerebral hematoma caused by moyamoyadisease. Both superior temporal gyri and the right basal ganglia were injured, and she suffered from left hemiparesis, higher brain dysfunction, and auditory agnosia. For the diagnosis of auditory agnosia, it is important (1) toidentify the injured brain site by diagnostic imaging, (2) to conduct a functional hearing test such as the auditorybrainstem response test, and (3) to reach a neurodiagnosis that differentiates aphasia and attention disorders.Our patient underwent a combination of speech therapy, free talk, and the practice of required tasks. Her hearing and speech improved remarkably by watching the presentation of mouth shapes. With both physical therapyand occupational therapy, our patient recovered remarkably and enjoyed her life in her own home.

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