http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
개별검색 DB통합검색이 안되는 DB는 DB아이콘을 클릭하여 이용하실 수 있습니다.
통계정보 및 조사
예술 / 패션
<해외전자자료 이용권한 안내>
- 이용 대상 : RISS의 모든 해외전자자료는 교수, 강사, 대학(원)생, 연구원, 대학직원에 한하여(로그인 필수) 이용 가능
- 구독대학 소속 이용자: RISS 해외전자자료 통합검색 및 등록된 대학IP 대역 내에서 24시간 무료 이용
- 미구독대학 소속 이용자: RISS 해외전자자료 통합검색을 통한 오후 4시~익일 오전 9시 무료 이용
※ 단, EBSCO ASC/BSC(오후 5시~익일 오전 9시 무료 이용)
There have been very few studies which gave the clear mechanical explanation about the effects of exercise on premenstrual syndrome(PMS) or premenstrual dysphoric disorder because of very extensive symptoms of PMS and limitation of invasive human studies. One persuasive me chanism suggested to explain the exercise effect of alleviating PMS was that exercise might stimulate the release of endogenous opiate hormones which might lessen the pain itself and thereafter alleviate various symptoms of PMS related to ovulation cycle through the inhibition of GnRH or stimulation of prolaction secretion. Another underlying mechanism is that exercise might normalize the too sensitive response of neurotransmitters such as serotonin and GABA in central nerve system to cyclic hormone release in PMS women. Besides, the increase of serotonin synthesis caused by increased uptake of tryptophan through blood-brain barrier(BBB) in brain tissue stimulated by exercise can be suggested as one of the possible mechanisms. The researcher also suggest that the changes of inflammatory or anti-inflammatory cytokines according to acute or chronic exercise might provide the clue to explain the underlying mechanism. So far three times a week and about 20 or 30 minutes of anaerobic exercise has been recommended for PMS. More evidence-based exercise intensity and exercise prescription guideline for PMS have to be suggested through further studies in this area.
This study investigated the effects of exercise types and valsalva maneuver on brain blood flow. Eleven subjects were participated in this experiment. Brain blood flow was tested by TCD through 5 sessions: valsalva maneuver, resting, arm ergometer exercise at 15watts, arm ergometer exercise at 30watts, and curling the dumbbell of 15 kg. The values of mean cerebral arterial blood flow at valsalva maneuver and curling the dumbbell were decreased significantly compared to resting value(p<.05). The arm ergometer exercise at 15w and 30w increased significantly the cerebral arterial blood flow compared to resting state(p<.00). There was no significant difference of heart rate among exercise types regardless of brain blood flow velocity. Present results suggest that performing valsalva maneuver during weight lifting might lead to cerebral blood flow dysfunction such as fainting by reducing blood flood to brain whereas rhythmical exercise(arm ergometer) actually increases blood flood to brain.
본 연구는 8~13세 남녀 어린이를 대상으로 인체원주측정과 피부두겹직기와 같은 인체계측학적 측정변인을 이용하여 신뢰도 높은 체지방률의 추정방정식을 제시하기 위하여 실시되었다. 체지방률의 기준값을 설정하기 위하여 46명(남 : 23명, 여 : 23명)의 어린이를 대상으로 수중체중측정법을 실시하여 체밀도를 측정하였으며, 체지방률의 기준값을 종속변인으로 하고 피부두겹집기 측정 10부위와 인체둘레 측정 6부위에 신장과 체중을 변수로서 추가한 총 18개의 독립변수를 이용하여 stepwise 다중회귀분석을 실시하였다. 피부두겹지기 측정방법을 이용한 기존의 체지방률 추정방정식(Slaughter, 1988 ; Boileau, 1985)을 본 연구에 적용하여 비교한 결과, Boileau(1985)의 추정방정식을 적용할 때 체지방률은 본연구의 기준값에 비해 남녀가 각각 1.7%와 0.3%가 과대평가되어 체지방률의 추정오차를 크게 감소시킬 수 있는 것으로 나타났다. 본 연구에서 총 18개의 독립변수 중 단일 변인으로서는 남자의 경우 북부 피하지방의 두께(r²=0.84), 여자의 경우는 복부둘레(r²=0.85)를 사용할 때 가장 신뢰도 높은 회귀방정식을 얻을 수 있었다. 다중회귀분석 결과 남자는 6개, 여자는 3개의 변수를 독립변수로 이용할 때 신뢰도가 높은 방정식을 얻을 수 있었기에 여기에 보고한다(C: circumference, SF : skinfold-thickness).Girl : %fat=0.59×Cabdominal+0.69×Sfcalf+0.69×Sfbiceps-40.22(r²=0.90)Boy : %fat=1.34×Sfabdominal-1.03×Chip+2.04×Ccalf+0.52×Sfsubscapular-0.85×Cabdominal-0.56×Cthigh+84.95(r²=0.97).
There are many indexes representing the level of sociological supports and circumstance encouraging the people with disability to participate in sports such as the disabled`s participation rate in sports, availability of facilities and places for the disabled, the size of budget supporting the disabled`s sports, etc. As one important index, the degree of how much benefits the people with disability have been receiving from sportsmedicine or exercise prescription must be also evaluated. In Korea, at least till this time the degree has been far behind from the level this society must have achieved. Based on this recognition, this study tried to define the role of sportsmedicine for both sports participants and elite athletes with disability in this society. I also suggested a couple of applicable and approachable areas and methods of sportsmedicine and exercise prescription for the people with disability. First, physiological and medical researches focused on field applicability need to be promoted through scientific conferences and seminars supported by government research supporting system and the sport organizations related with the disabled. Second, the network between community university and people with disability for the exercise prescription can be newly established by sponsorship from local or central government and the other related organizations. The facilities, training equipments, programs, professionals and assistants could be provided by university while the transportation and any payments for supporters could be provided by the organizations. Third, there is an urgent need to establish the system for cultivating the professionals such as athletic trainers for the disabled. Forth, the close network and system to connect the disabled from medical institutes to sports centers or clubs need to be established. Lastly, the exercise prescription center specified for people with disability need to be built on the basis of strong welfare policy, not from the commercial basis. Sportsmedicine has to be understood as a high quality of service and a method to pursue the fundamental human right for the disabled as well as the undisabled beyond the meaning of rehabilitation from the injury and functional disability.
It has been well known that the cancer-related fatigue(CRF) is one of the most common and distressing side-effects of cancer or/and cancer treatment. In this study, the author reviewed the epidemical, experimental or pilot studies on the prevalence of CRF, the etiology of CRF as well as the effects of exercise intervention for cancer patients with CRF. This study also tried to find any updated exercise guideline of exercise prescription for cancer patients and cancer survivors. To date, it seems that increased pro-inflammatory cytokine activity might be the most potential underlying mechanism of CRF. However, to elucidate the correct etiology of CRF, further controlled and well designed researches are required. Through the review about the effects of exercise intervention for CRF, the author also suggest strongly that exercise should be considered as the most effective approach to deal with CRF and other side effects as well as to improve the patient`s physical function and the quality of life. There are also very important task of developing the relevant and effective exercise program for cancer patients through the cooperation among the oncologists, exercise physiologists, fitness specialists.
It has been reported that regular exercise has the effect to reduce the risk of cancer and exercise intervention help the cancer patient to be able to get through the hard treatment procedure. In this study, the author summarized the proposed mechanisms of anti-cancer and anti-fatigue effects of exercise and introduce the exercise intervention researches so for. For the proposed anti-cancer effect of exercise, three major mechanism have been suggested as follows. The first, exercise-induced reactive oxygen species(ROS) might cause the apoptosis of pre-stage of cancer cells. The second, ROS or pro-inflammatory cytokines like IL-1 and TNF-α which can be induced by exercise might activate the signaling pathway to promote the transcription of endogenous anti-oxidant enzymes such as SOD, CAT, GPX and HSP70 and in turn increase the protective capability of our body against various carcinogenic factors. The third, Regular exercise can increase the phase Ⅱ enzymes such as GST and UDP-GT associating with DNA repair system and also increase the activities of proteasome and OGG1 which have the role of eliminating the misfolding protein or oxidized base of DNA, respectively. It also has been reported that cancer-related fatigue(CRF) might be the most common and painful side effect of cancer itself and cancer treatment such as chemical and radiation therapy or transplantation surgery. The increase of pro-inflammatory cytokines during the cancer treatment has been suggested as the most plausible etiology of CRF. The anemia induced by the decreased function of erythropoiesis in red bone marrow and deregulation of HPA axis and the abnormal change of synaptic serotonin level in central nerve system might be caused by chronically increased pro-inflammatory cytokines. Many researches which have investigated the effects of exercise intervention for cancer patients and survivors suggested that exercise might be one of the most effective way to alleviate the cancer-related fatigue and prevent the change of body composition and the decrease of muscle mass and strength, cardiovascular function and improve the pain index and quality of life(QOL). Therefore we need to encourage the cancer specialist to use the exercise intervention for cancer treatment as the most evidence-based intervention and cooperate to improve the treatment effect and quality of life(QOL) of cancer patients and survivors.