• 대한안전경영과학회지
• /
• 제14권2호
• /
• pp.11-22
• /
• 2012

The purpose of this study was to compare drivers' postures with different car pedal systems and skilled levels. Fourteen subjects participated in this experiment and for three-dimensional analyses, six cameras (Proreflex MCU-240, Qualisys) were used to acquire raw data. The parameters were calculated and analyzed with Visual-3D. In conclusion, the patterns of pelvic, hip, knee and ankle joint angles were different as to pedal systems and skilled levels, and distal joints ROA pelvis have large angles. ROA(range of angle) of a double pedal system was small, but ROA of a single pedal system was large. These findings suggested that we should improve a present single pedal system.

• 대한정형외과스포츠의학회지
• /
• 제12권1호
• /
• pp.16-23
• /
• 2013

슬관절의 다발성 인대 손상은 2개 또는 그 이상의 인대가 손상된 경우를 의미하고, 이 중 3개 또는 4개의 인대 파열이 일어나게 되면 대퇴골-경골 관절의 통합성이 파괴된 상태, 즉 슬관절의 탈구가 일어날 수 있다. 슬관절의 다발성 인대 손상이 있는 경우 혈관, 신경 상태를 단계적으로, 세심하게 평가하여야 하며 동맥 손상이 의심 시 지체하지 말고 응급 수술을 시행하여야한다. 슬관절의 다발성 인대 손상 치료에는 여러 이견이 있을 수 있으나 보존적 치료보다는 수술적 치료가, 지연 수술보다는 조기 수술이 권유되고, 전, 후방 십자 인대의 경우 재건술이, 후외방 인대의 경우 재건술이, 내측 측부 인대의 경우 봉합술 혹은 재건술이 권유되며, 다발성 인대 손상은 단일 인대 손상보다는 좀더 적극적인 치료가 요할 것으로 사료된다.

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2009년도 추계학술대회
• /
• pp.15-24
• /
• 2009

Cycling that transform human energy into mechanical energy is one of the man-machine systems out of sports fields. Benchmarking means " improving ourselves by learning from others ", therefore benchmarking toward dominant cyclist is necessary on field. the goals of this study were to provide important factors on multi-disciplines (kinematics, physiology, power, psychology) for a tailored-training program that is suitable to individual characteristics. Two cyclist participated in this study and gave consent to the experimental procedure. one was dominant cyclist (years:21 yrs, height:177 cm, mass:70 kg), and the other was non-dominant cyclist(years:21, height:176, mass:70). Kinematic data were recorded using six infrared cameras (240Hz) and QTM (software). Physiological data (VO2max, AT) were acquired according to graded exercising test with cycle ergometer and power with Wingate test used by Bar-Or et. al ( 1977) and to evaluate muscle function with Cybex. Psychological data were collected with competitive state anxiety inventory (CSAI-2) that were devised by Martens et. al (1990) and with athletes' self-management questionnaire (ASMQ) of Huh (2003). It appears that the dominant's CV(coefficient of variability) was higher than non-dominant's CV in Sports Biomechanics domain, that the dominant's values for all factors ware higher than non-dominant's values in physical, and physiological domain, and their values between cognitive anxiety and somatic anxiety were contrary to each other in psychology. Further research on multi-disciplines may lead to the development of tailored-optimal training programs applicable with key factors to enhance athletic performance by means of research including athlete, coach and parents.

• Nutrition Research and Practice
• /
• 제15권6호
• /
• pp.732-746
• /
• 2021

BACKGROUND/OBJECTIVES: This study examined the differences in psychosocial factors and eating behaviors by the stages of change (SOC) in nutrition management among elementary and middle school athletes. SUBJECTS/METHODS: Subjects were young athletes recruited from the athletic clubs of 10 organizations. Subjects responded to a survey questionnaire, and data on 167 athletes were analyzed. Subjects were grouped into the pre-action or action stage in nutrition management. The χ² test, t-test, analysis of covariance, and correlation analysis were used in data analysis. RESULTS: Athletes in the action stage (62.3%) compared to the pre-action stage, showed a higher self-efficacy (P < 0.01), and felt more confidence in performing specific eating behaviors (P < 0.05 to P < 0.01). Those in the action stage had more favorable beliefs regarding nutrition (P < 0.001) and agreed less strongly on the specific misconceptions/disadvantages of nutrition (P < 0.01) than those in the pre-action stage. Eating behaviors (P < 0.001) and subscales of the eating behaviors (P < 0.05 to P < 0.01) also differed significantly by the SOC group. Place of eating dinner (P < 0.05) and the person who prepares dinner (P < 0.05) showed significant differences by the SOC group. The relationship of self-efficacy, beliefs regarding nutrition, and eating behaviors to the SOC differed by sports type. Beliefs for football athletes, self-efficacy, and beliefs for baseball athletes were correlated significantly with the SOC, whereas all 3 variables were related to the SOC for handball and other athletes. CONCLUSIONS: This study showed differences in psychosocial factors and eating behaviors between the pre-action and action stages. Nutrition education should include strategies to help young athletes modify their beliefs, mainly misconceptions/disadvantages of nutrition, increase self-efficacy, and adopt specific and desirable eating behaviors. Nutrition education might employ different strategies considering the sports type that student-athletes participate.

• 유통과학연구
• /
• 제15권11호
• /
• pp.83-93
• /
• 2017

Purpose - The study aims to analyze the VMD(Visual Merchandising) perception factors in recent sporting goods store and clarify the effect of each VMD perception factors on brand image, satisfaction, and customer revisit intention. The VMD perception factors play an important role in attracting and actually inducing sales to the visiting customers. It has investigated the effect of VMD perception on customer satisfaction and revisit intention. It is expected that the company's marketing strategy with VMD will be differentiated and competitive in sports item stores, brand image enhancement, customer retention, and acquisition. Research design, data, and methodology - In order to verify the hypotheses of this study, a total of 380 questionnaires had been distributed. 360 respondents were used in the final analysis excluding 20 respondents' incomplete answers. The SPSS 18.0 program was used and the data analysis was conducted for the demographic characteristics and distribution behavior. Principal Components Analysis was used for the common factor extraction for validity analysis, and factor analysis was conducted to verify such as validity in brand image or brand attitude. As for Multiple regression analysis, was performed to verify and in the research model, and in and , the mediation was defined through the Sobel Test in order to verify the brand image mediating effects on VMD, store satisfaction, and revisit inquiry of sports store. Results - Qualitative research shows that VMD sub-variables such as aesthetic, fitness, and functional convenience influence store satisfaction and revisit intention. As a result of analyzing the mediating effect of the brand image, the more VMD is strengthened, the more brand image is improved and store satisfaction is also increased. Conclusions - VMD enhancement requires a VMD strategy aligned with the company's management policies and objectives, a visual directing and consistent concept that delivers a strong message to customers. The customer actual purchasing behavior is a combination of various factors such as sports item stores' interior design, display, advertisement promotion like POP(Point of Purchase), salespersons and their service quality, so that the VMD image and the brand image must be consistent and a unique strategic plan is required.

• 생명과학회지
• /
• 제22권2호
• /
• pp.184-191
• /
• 2012

본 연구의 목적은 16주 근력 트레이닝을 동반한 TRX, 코어 훈련이 엘리트 역도 선수의 피로물질과 근 손상, 산화적손상, myokine에 미치는 영향을 규명하기 위함이다. 본 연구 대상자들은 총 10명(남 6명, 여 4명)으로 구성되어 있으며 16주 근력 운동과 더불어 코어 및 TRX 트레이닝을 실시하여 다음과 같은 결과를 얻었다. Ammonia와 Pi는 트레이닝 전에 비해 점차적으로 증가함을 나타냈으나 통계적으로 유의한 차이는 나타나지 않았다. 근 손상 물질인 CK는 트레이닝 전에 비해 8주에 유의한(p<0.05) 증가를 나타냈으며, LDH는 트레이닝 전에 비해 8주에 유의한(p<0.05) 증가를 나타냈지만 16주에는 감소하는 경향을 나타냈다. 산화적 손상 지표인 MDA는 트레이닝전과 16주에 비해 트레이닝 8주에서 유의한(p<0.05) 증가를 나타냈으며, 항산화 지표인 TAS 또한 트레이닝 전에 비해 트레이닝 8주에서 통계적으로 유의한(p<0.05) 증가를 나타냈다. Myokine인 IL-15는 트레이닝 전에 비하여 트레이닝 8주와 16주에 통계적으로 유의한(p<0.05) 증가를 나타냈다. 결과적으로 16주 고강도 근력 트레이닝은 엘리트 중학교 역도선수의 피로물질과 근 손상, 산화적 손상, myokine에는 긍정적이 영향을 미친 것으로 나타났다.

• 대한안전경영과학회지
• /
• 제15권2호
• /
• pp.55-61
• /
• 2013

For years, many studies have mainly been investigated in a complicated human motion analysis. Recently, many motion analysis equipments have been studied and developed. Therefore, the more complex human movement analyses are possible, we have enabled us to perform more and more complicated human movement analyses. A Three-dimensional(3D) motion analysis on of the several methods is a useful tool for analyzing the human motion analysis. The purpose of this study was to develop the 3D human motion analysis using a kalman filter algorithm and a gyro sensor. The algorithm and sensor were used to human motion analysis with high-speed motion capture. In this study, the developed system will be adapted to facilitate golf swing analysis. Using the developed system, golfers and coaches who do not have advanced biomechanical knowledge can easily be used to their golf swing analysis. Future study is necessary for more practical and efficient area such as other sports industries, 3D game industries, rehabilitation training, etc..

• 디지털융복합연구
• /
• 제14권10호
• /
• pp.473-481
• /
• 2016

이 연구는 전국체육대회 사례를 중심으로 재외동포의 모국방문 경험과 초국가주의적 정체성 교섭의 관계를 규명하는데 목적이 있다. 연구의 목적을 달성하기 위해서 2015년 제 96회 전국체육대회에 참가한 재외동포들 378명을 대상으로 자료를 수집하였으며, 결과는 다음과 같다. 첫째, 재외동포의 전국체육대회 참가동기 중 사교, 정체성 유지 그리고 자아실현 추구가 높을수록, 전국체육대회에서 긍정적인 참가경험을 하며, 반대로 거주국에서 쌓인 스트레스 해소나, 자신의 거주국에서 하고 있는 사업을 위한 동기가 높을수록 그리고 정체성 유지를 위한 참가동기가 낮을수록, 부정적인 경험이 높다. 둘째, 관광, 거주국에서 쌓인 스트레스 해소 그리고 자신의 거주국에서 하고 있는 사업을 위한 참가동기가 높을수록, 현재 거주하는 국가의 정체성이 강하다. 반면에 정체성을 유지하기 위한 동기가 높을수록, 모국정체성이 강하다. 셋째, 재외동포들이 전국체육대회에서 부정적인 경험을 많이 할수록 현재 자신이 거주하는 국가의 정체성이 강하며, 반대로 전국체육대회에서 부정적인 경험을 적을수록 모국 정체성이 강하다.

• 디지털융복합연구
• /
• 제14권10호
• /
• pp.507-514
• /
• 2016

이 연구의 목적은 생활체육참가자가 가진 스포츠가치관에 따라 참여만족과 운동지속의사에 어떠한 차이가 있는지를 알아보는데 있다. 연구대상은 서울, 경기 지역에서 생활체육에 참여하고 있는 참여자를 대상으로 하였으며, 자료수집은 편의표본추출법에 의해 수집되었고, 그 중 233부를 사용하였다. 수집된 자료는 SPSS 21.0을 사용하여 빈도분석, 상관관계, 다중회귀분석을 실시하였다. 결과는 다음과 같다. 첫째, 참여자의 스포츠가치관 중 품성적 가치관, 신체적 가치관, 심리적 가치관, 사교적 가치관이 참여만족에 정적으로 영향을 미쳤다. 둘째, 운동지속의사에는 품성적 가치관, 심리적 가치관, 오락적 가치관, 신체적 가치관이 정적으로 영향을 미쳤다.

• Clinics in Shoulder and Elbow
• /
• 제2권1호
• /
• pp.53-59
• /
• 1999

Initial treatment of multidirectional instability of the shoulder would be a thorough rehabilitation program. If rehabilitation fails to resolve a patient's symptoms, the most commonly performed surgical procedure remains the inferior capsular shift. Eleven patients who had disabling multidirectional instability of the shoulder were managed with the inferior capsular shift. All of the procedure were performed by means of an anterior approach and a laterally based capsular shift. All of the patients were the contact athletes. The purpose of our study was to evaluate the efficacy of the inferior capsular shift procedure in the contact athletic patients, to review the loss of external rotation postoperatively and to discuss their return to sports. Mean follow up duration was 14.5 months(range, 12 to 24). Pain was relieved postoperatively in all cases and most patients could get stability except one case of recurrent subluxation. The average loss of external rotation and forward flexion after the operation were Y and 30 at last follow up. By the rating scale from American Shoulder and Elbow Society, overall scores improved from 49 points to 85 points. The results were excellent or good in 9 patients(82%) out of 11 patients. In reference to return to sports, 10 patients(91 %) of 11 patients returned to their sports with 7 patients (64%) returning at the same levels of competitiveness. The inferior capsular shift procedure was considered to be a recommendable method for the management of the multidirectional instability of the shoulder.