- 著者
- Ayaka Takegami Taishu Kasai Sonoko Mashimo Naruto Yoshida Hitoshi Shiraki
- 出版者
- The Japanese Society of Physical Fitness and Sports Medicine
- 雑誌
- The Journal of Physical Fitness and Sports Medicine (ISSN:21868131)
- 巻号頁・発行日
- vol.11, no.2, pp.117-124, 2022-03-25 (Released:2022-03-14)
- 参考文献数
- 35
This study investigated the relationships between subjective and objective indicators of training load in female handball players. Twelve female handball players (age: 20.1 ± 1.2 years, height: 164.3 ± 4.2 cm, and weight: 61.8 ± 4.1 kg) belonging to the first division of a university league were included in the study. The training load was investigated over a nine-week period of the competition phase. The subjective load indicator was the session rating of perceived exertion (sRPE), and the objective load indicators were total distance, Player Load™, and heart rate-based training load (HRTL). We observed 20.5 ± 2.3 sessions for each player. The sRPE demonstrated significant relationships (p < 0.05) with all objective load indicators, with correlation coefficients r = 0.73 ± 0.09, 0.73 ± 0.08, and 0.75 ± 0.10 for total distance, Player Load™, and HRTL, respectively. All the relationships were very strong (0.7 < r < 0.9). These results reveal the potential validity of sRPE use in handball and suggest that the sRPE is an indicator that reflects the characteristics of both biomechanical and physiological load indicators.
- 著者
- Sonoko Mashimo Naruto Yoshida Takaaki Hogan Hideaki Waki Yoichi Minakawa Shogo Miyazaki Masaaki Koido
- 出版者
- The Japanese Society of Physical Fitness and Sports Medicine
- 雑誌
- The Journal of Physical Fitness and Sports Medicine (ISSN:21868131)
- 巻号頁・発行日
- vol.11, no.4, pp.237-245, 2022-07-25 (Released:2022-07-12)
- 参考文献数
- 32
- 被引用文献数
- 1
Despite extensive studies on the incidence and characteristics of football (soccer) injuries using a time-loss definition, the exact magnitude of injuries and illnesses in football players remains unclear. This study aimed to examine the prevalence and burden of health problems among university football players based on all physical complaints. Ninety-four male university football players were prospectively followed up during the 2020 competitive season in Japan. The study period was divided into the self-training period (SP) and the football period (FP). All participants were asked to complete the Japanese version of the Oslo Sports Trauma Research Center Questionnaire on Health Problems (OSTRC-H2.JP) every Sunday. The main outcome measures were the prevalence of all health problems and substantial health problems and their burdens. The average response rate to the OSTRC-H2.JP was 88.8% [95% CI, confidence interval: 87.7%–89.9%]. Overall, the average weekly prevalence of all health problems was 19.7% [95% CI: 18.3%–21.1%]. During the FP, the average weekly prevalence of all health problems and substantial health problems were 22.9% [95% CI: 21.0%–24.7%] and 15.3% [95% CI: 13.7%–16.9%], respectively. Injuries were the main problem, with traumatic injuries in the ankle, thigh, and foot representing the greatest burden. This study indicated that approximately 20% of university football players experienced injuries or illnesses. Traumatic injuries in the ankle, thigh, and foot represented the greatest burden on self-reported reliance using broad definitions of injury and illness. Therefore, injury prevention should focus on preventing these complaints.
- 著者
- Hideaki Waki Masaaki Koido Yoichi Minakawa Shogo Miyazaki Naruto Yoshida
- 出版者
- The Japanese Society of Physical Fitness and Sports Medicine
- 雑誌
- The Journal of Physical Fitness and Sports Medicine (ISSN:21868131)
- 巻号頁・発行日
- vol.11, no.4, pp.213-220, 2022-07-25 (Released:2022-07-12)
- 参考文献数
- 24
- 被引用文献数
- 1
This study aimed to observe the conditions of Japanese college athletes during the COVID-19 pandemic for the prevention of psychiatric and sleep disorders. A survey was conducted with 100 players before and after they refrained from sports activities due to the emergency measures (April 7–May 14, 2020) against COVID-19. The survey items used were the Hospital Anxiety and Depression Scale (HADS) for psychiatric symptoms (anxiety and depression) and the Pittsburgh Sleep Quality Index (PSQI) for sleep. A survey on the living conditions was based on a web-based questionnaire. Sleep dysfunction (PSQI ≥ 6), anxiety (HADS-A ≥ 8), and depression (HADS-D ≥ 8) were found in 20 (20%), 19 (19%), and 18 (18%) players before the emergency measures, and 32 (32%), 20 (20%), and 31 (31%) players after emergency measures, respectively. Of the 100 participants, 36 (36%) developed sleep dysfunction or depression as they lived alone, were anxious about school life (e.g., friendships), and were financially unstable regarding living expenses (e.g., not able to work part-time). Due to these findings, it is necessary to actively intervene in the mental health of university students.