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The effect of warm-ups with stretching on the isokinetic moments of collegiate men
Hyoung-Kil Park,Min-Kyung Jung,Eunkyung Park,Chang-Young Lee,Yong-Seok Jee,Denny Eun,Jun-Youl Cha,Jaehyun Yoo 한국운동재활학회 2018 JER Vol.14 No.1
Performing warm-ups increases muscle temperature and blood flow, which contributes to improved exercise performance and reduced risk of injuries to muscles and tendons. Stretching increases the range of motion of the joints and is effective for the maintenance and enhance-ment of exercise performance and flexibility, as well as for injury pre-vention. However, stretching as a warm-up activity may temporarily de-crease muscle strength, muscle power, and exercise performance. This study aimed to clarify the effect of stretching during warm-ups on mus-cle strength, muscle power, and muscle endurance in a nonathletic population. The subjects of this study consisted of 13 physically active male collegiate students with no medical conditions. A self-assessment questionnaire regarding how well the subjects felt about their physical abilities was administered to measure psychological readiness before and after the warm-up. Subjects performed a non–warm-up, warm-up, or warm-up regimen with stretching prior to the assessment of the isokinetic moments of knee joints. After the measurements, the respec-tive variables were analyzed using nonparametric tests. First, no statis-tically significant intergroup differences were found in the flexor and extensor peak torques of the knee joints at 60˚/sec, which were as-sessed to measure muscle strength. Second, no statistically significant intergroup differences were found in the flexor and extensor peak torques of the knee joints at 180˚/sec, which were assessed to measure muscle power. Third, the total work of the knee joints at 240°/sec, in-tended to measure muscle endurance, was highest in the aerobic-stretch-warm-ups (ASW) group, but no statistically significant differ-ences were found among the groups. Finally, the psychological readi-ness for physical activity according to the type of warm-up was signifi-cantly higher in ASW. Simple stretching during warm-ups appears to have no effect on variables of exercise physiology in nonathletes who participate in routine recreational sport activities. However, they seem to have a meaningful effect on exercise performance by affording psy-chological stability, preparation, and confidence in exercise perfor-mance.
Electronic Media Exposure and Use among Toddlers
Hyoung Yoon Chang,Eun-Jin Park,Hee-Jeong Yoo,Jee won Lee,Yunmi Shin 대한신경정신의학회 2018 PSYCHIATRY INVESTIGATION Vol.15 No.6
Objective These days, young children are exposed to a wide range of smart devices and their usage of smart devices is rapidly increasing worldwide. However, the use of smart devices by young children has not been studied in detail yet because smart device is relatively recent. The purpose of this study was to investigate the exposure status of smart devices among 2-5 years old children in Korea. Methods Four hundred parents of 2- to 5-year-old children were invited to enroll. Data on demographic information and the frequency of media use, time of media use, age at first use of media was self-reported. Results Among 390 toddlers, 39.3% watched TV almost every day, while 12.0% of children used smartphone on a daily basis. During weekdays, 48% of the children watched TV for over an hour. On weekends, 63.1% of the children watched TV for over an hour. On weekends, 23.4% of children use their smartphones for over an hour. Children using smartphones before 24 months of age were 31.3%. Conclusion Research has shown that TV and smartphones are the most popular digital devices used by toddlers. Most toddlers began using smart devices at 12-24 months. This study provides comprehensive information on children’s contemporary use of media.
Nursing Students' First Clinical Experiences of Death
Park, Hyoung Sook,Jee, Youngju,Kim, Soon Hee,Kim, Yoon-Ji Korean Society for Hospice and Palliative Care 2014 한국호스피스.완화의료학회지 Vol.17 No.3
목적: 본 연구는 "병원 실습 중 간호대학생의 환자의 죽음에 대한 첫 경험은 어떠한가?"라는 질문을 통해 실습 중 간호대학생이 직면하는 환자의 죽음에 대한 경험을 포괄적이고 심층적으로 파악하고자 실시되었다. 방법: 본 연구는 2012년 1월 27일로부터 시작하여 2012년 3월 6일까지 양산시 부산대학교 간호학과 4학년에 재학 중인 여학생으로, 병원실습 중 환자의 죽음을 처음 경험한 실습생들 8명에게 실시되었다. 연구방법은 Colaizzi의 현상학적 연구 방법이 이용되었다. 결과: 17개의 주제, 15개의 주제묶음과 8개의 범주가 도출되었다. 8개의 범주는 '피하고 싶은 죽음현실', '무력감', '건강회복의 기대감에서 공포로', '죽음의 다양한 해석', '간호학의 한계', '간호사 부족에 대한 원망', '갈증의 증폭', '성장의 계기'이다. 결론: 간호대학생들은 환자의 죽음에 대한 첫 경험 과정에서 다양한 감정을 경험하고, 임종간호를 감당하고 있는 간호사의 모습을 미래의 간호사라는 자신의 입장에서 해석해가고 있었다. 이와 동시에 그들은 죽음을 간호의 영역으로 받아들이고, 공부하고 익혀나가는 성장의 노력을 하고 있었다. 따라서, 본 연구의 결과를 통해 죽음관련 내용이 간호대학 교육과정에 꼭 포함되어야 함을 알 수 있었고, 이는 신규간호사 시기에 큰 부담이 되고 있는 임종간호의 스트레스를 줄여서 업무 적응을 높이고, 이직 의도를 낮추는데 긍정적 영향을 미칠 것이다. Purpose: This study was conducted to comprehensively investigate nursing students' experience of their first encounter with death of a patient during clinical practice. Methods: This study took place from January 27 through March 6, 2012 with eight female senior nursing students enrolled at Pusan National University located in Y city who have experienced patient death. We collected their experience of their first death encounter during their clinical rotation by asking, "What is your first experience of patient's death during the clinical practice?" Husserl's phenomenological approach was applied in this study. Results: In this study, 17 themes, 15 clusters of themes and eight categories were derived. The categories included "Desire to avoid the reality of death", "Powerlessness", "Anticipation for recovery shifted to fear of death", "Various interpretations of death", "Limitations in their nursing practice", "Resentment of lack of nurses", "Longing to better understand death", and "Motivation for inner growth". Conclusion: Through their first encounter with death of a patient, nursing students experienced various emotions and viewed their role as hospice caregiver by projecting themselves as fully trained nurses in future. Participants considered terminal care as a part of nursing care. The result of this study indicates the need to include education of death in the nursing school curriculum.
Park, See-Hyoung,Lee, Jongsung,Shon, Jong Cheol,Phuc, Nguyen Minh,Jee, Jun Goo,Liu, Kwang-Hyeon Elsevier 2018 Phytomedicine Vol.42 No.-
<P>Conclusion: Overall, this was the first report of the inhibitory effects of BCA on CYP2J2 in HLMs. The present data suggest that BCA is a potential candidate for further evaluation for its CYP2J2 targeting anti-cancer activities.</P>