• 한국엔터테인먼트산업학회논문지
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• 제14권7호
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• pp.79-94
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• 2020

본 연구의 목적은 가상현실 스포츠 이용 활성화를 위한 프레즌스(Presence)이 참여만족(Participation Satisfaction)에 미치는 영향의 차이 분석하여 지속적으로 스크린골프 운동참여하도록 제시하고 가상현실 스포츠 시장 전반의 발전을 위한 실증적이고 학술적인 자료를 제공하는 것에 주된 목적이 있다. 이를 위해 조사기간은 2020년 3월 13일부터 5월 13일까지 5명의 연구진과 보조원으로 구성하였다. 연구의 목적과 설문에 대한 스크린 골프를 직접 경험한 소비자에게 충분한 설명을 한 후 자기평가기입법(self-administration method)으로 설문지를 작성하도록 하여 얻은 전체 247부의 설문지를 최종 유효표본으로 사용하였다. 자료처리방법으로는 통계 프로그램 Window SPSS 18.0프로그램을 이용하였다. 첫째, 요인분석과 신뢰도 분석, 둘째, 빈도분석 평균(M)과 표준편차(SD), 셋째, t-test와 One-way ANOVA 분석을 실시하였고 사후분석방법 중 쉐페(Scheffe)분석, 넷째, 변수들 간의 상관분석 및 다중회귀분석(Multiple Regression Analysis)을 실시하였다. 이와 같은 방법과 절차를 통하여 본 연구에서 얻어진 결과는 다음과 같다. 첫째, 일반적 특성의 성별, 참여기간에서 프레즌스이 참여만족에 유의한 차이가 나타났다. 둘째, 프레즌스의 하위요인 사회적 실재감, 사회적 주체감, 자아감은 참여만족 하위요인 사회적 만족, 심리적 만족, 신체적 만족에 높은 차이가 나타났다. 셋째, 프레즌스의 하위요인 사회적 실재감, 사회적 주체감, 자아감은 참여만족 하위요인 사회적 만족, 심리적 만족에 높은 영향이 미치는 것으로 나타났다.

• 대한의생명과학회지
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• 제16권3호
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• pp.151-159
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• 2010

The peroxisome proliferator-activated receptor $\alpha$ (PPAR$\alpha$) is a nuclear transcription factor that plays a central role in lipid metabolism and obesity. Exercise also is a powerful modifier of the manifestations of the lipid metabolism and obesity in animal models and humans with obesity and metabolic syndrome. However, effects of exercise on lipid metabolism and obesity in normal-weight younger female subjects, having functional ovaries and not metabolic disease, remain unexplained. To explore the effects of exercise on the development of obesity and its molecular mechanism in high fat diet-fed female C57BL/6J mice, we experimented the effects of swim training on body weight, adipose tissue mass, serum lipid levels, morphological changes of adipocytes and the expression of PPAR$\alpha$ target genes involved in fat oxidation in skeletal muscle tissue of female C57BL/6J mice. Swim-trained mice had significantly decreased body weight, adipose tissue mass, serum triglycerides compared with female control mice. Histological studies showed that swim training significantly decreased the average size of adipoctyes in parametrial adipose tissue. Swim training did not affect the expression of PPAR$\alpha$ mRNA in skeletal muscle. Concomitantly, swim training did not increase mRNA levels of PPAR$\alpha$ target genes responsible for fatty acid $\beta$-oxidation, such as carnitine palmitoyltransferase 1, medium chain acyl-CoA dehydrogenase, enoyl-CoA hydratase/3-hydroxyacyl-CoA dehydrogenase, and thiolase in skeletal muscle. In conclusion, these results indicate that swim training regulates lipid metabolism and obesity in high fat diet fed-female mice although swim training did not increase mRNA levels of PPAR$\alpha$ target genes involved in fatty acid $\beta$-oxidation in skeletal muscle, suggesting that swim training may prevent obesity and improve fitness through other mechanisms in female with ovaries, not through the activation of skeletal muscle PPAR$\alpha$.

• 운동영양학회지
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• 제16권1호
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• pp.27-33
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• 2012

This study was conducted to investigate the effect of a 24-week combined exercise training program in older women with hypertension. Women with hypertension who were 70 years and older were randomized into two groups: combined exercise group (CE; n = 15) and a control group (n = 15). The CE group performed a combined exercise training program four times per week for 24 weeks and the control group did not. Five factors, including body composition (percent body fat and skeletal muscle mass), health-related physical fitness, adipocytokines (interleukin-6 [IL-6] and tumor necrosis factor-alpha [TNF-α]), kidney risk factors (glomerular filtration rate [GFR] and cystatin C), and systolic and diastolic blood pressure were measured before and after the program. The findings showed that total muscle mass, health-related physical fitness factors, and GFR increased significantly in the CE group compared to those in the control. Additionally, systolic and diastolic blood pressure and IL-6, TNF-α, and cystatin C levels in the CE group decreased significantly after the intervention. In contrast, total muscle mass decreased significantly and blood pressure remained unchanged in the control group. These results suggest that CE training may positively impact circulating levels of adipocytokines and cystatin C and improve physical fitness levels in elderly women with hypertension. Therefore, CE training helps to prevent renal disease and improve health-related physical fitness, eventually leading to a better quality of life.

• PNF and Movement
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• 제22권2호
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• pp.233-242
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• 2024

Purpose: The aim of this study was to investigate the effects of different types of unstable loads on core and lower limb muscle activity during squatting. Methods: Nineteen subjects (all females) with resistance experience but no unstable resistance experience participated in the study. Subjects performed squats under three load conditions, and core and lower limb muscle activity was measured during eccentric and concentric contractions. Results: During the eccentric contraction, core and hip flexor activity was significantly higher with the aqua bag than with the barbell or resistance band, and for the quadriceps, the resistance band was significantly higher than the barbell. During the concentric contraction phase, core and hamstring muscle activity was significantly higher with the aqua bag than with the barbell and elastic band (p < 0.05). Conclusion: Squats with an aqua bag increase core and biceps brachii activation and can be recommended as a training method to improve trunk stability.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2012년도 춘계 종합학술대회 논문집
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• pp.153-154
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• 2012

본 연구는 항공레저스포츠 환경 분석을 통한 항공레저스포츠산업의 발전전략을 제안 하는데 그 목적이 있다. 이러한 목적을 달성하기 위하여 국내 항공레저스포츠의 실태 조사와 더불어 정부의 정책 및 사례조사를 통해 현황을 파악하였으며 전문가의 의견과 선행연구들의 결과를 수렴하여 환경 분석(SWOT) 및 그에 따른 전략을 탐색하였다.

• 한국멀티미디어학회논문지
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• 제19권2호
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• pp.396-404
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• 2016

In this paper, the customized sport convergence contents curation system is proposed for activation of sport for all. The proposed system collects and analyzes profile of social sports group(club, society, etc.) for recommend optimized sport convergence contents to user. And the survey is progressed for research problem of existed service and usefulness of proposed service. The proposed system and service are expected to design innovative new service model for activate of sport for all.

• 동의생리병리학회지
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• 제28권1호
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• pp.59-62
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• 2014

Glucose uptake plays a pivotal role in maintaining whole body glucose homeostasis in adipocytes and skeletal muscles. In the present study we have shown that Fructus Piperis Longi Extracts (FPLE) can stimulate glucose uptake in OP9 adipocytes. The increasing effects of FPLE on glucose uptake were inhibited by compound C pretreatment, which means that the glucose uptake effects by FPLE were carried out by AMP-activated protein kinase (AMPK) activation. Further studies revealed that FPLE stimulated glucose transport occurs through a mechanism involving extracellular signal-regulated kinase (ERK1/2) activation.

• 한국운동역학회지
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• 제24권3호
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• pp.287-293
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• 2014

The purpose of this study was to investigate the effects of Hoehn-Yahr scale on the activation of lower-extremity muscles during walking. Electromyography (EMG) analysis was carried out on 36 patients with Parkinson's disease in the off phase of the medication cycle. We recorded EMG signals of the tibialis anterior (TA), medial gastrocnemius (MG), lateral gastrocnemius (LG), soleus (SOL), rectus femoris (RF), vastus lateralis (VL), semitendinosus (ST) and biceps femoris (BF) using Noraxon 16 channels EMG system during walking at preferred speed. Rectified EMG signals were normalized to reference voluntary contractions (RVC) over a gait cycle at the preferred speed, allowing for an assessment of how the activity was distributed over the gait cycle. Compared to the H & Y Scale 1, H & Y Scale 3 exhibited greater activation of the vastus lateralis during mid-stance and greater activation of the medial gastrocnemius during terminal swing. Compared to the H & Y Scale 1, H & Y Scale 2 and 3 exhibited less activation of the tibialis anterior during initial swing. We conclude that the more Hoen & Yahr Scale increase, the more abnormal lower-extremity muscles activation.

• 전기학회논문지
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• 제67권7호
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• pp.910-916
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• 2018

In this paper, we developed a shoulder rehabilitation exercise device and monitoring system to remotely provide rehabilitation system for the ones who need shoulder exercises including the patients with rotator cuff rupture. In order to evaluate the severity of shoulder muscle injury, a total of 4 shoulder rehabilitation exercises ((3) shoulder abduction, (2) shoulder flexion, (3) shoulder abduction with elbow flexion, (4) shoulder extension with elbow flexion) were selected and instructed to be performed with a 3 kg dumbbell for 5 times. For EMG (electromyogram) signal analysis, each subject's maximum voluntary contraction (MVC) was measured. EMG signals reflect the activation level of contracting muscles during dynamic exercises. Six participants' muscle activation levels in posterior deltoid, middle deltoid, upper trapezius, and infraspinatus were measured and compared. The mean power spectrum values in the time and frequency domains were compared between two age-matched groups (20s and 50s). The results showed lower muscle activation in the elderly subjects (n=3) compared to that of the ones in their twenties (n=3).

• 디지털융복합연구
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• 제12권6호
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• pp.597-605
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• 2014

대전시가 추진하고 있는 전지훈련 팀 유치를 통한 지역경제 활성화 방안을 살펴보고자 관련 자료를 분석한 결과 대전시는 타 시도에 비해 훈련시설이 부족하였고, 기온, 바람, 강수량의 기후 조건도 타 시도에 비해 특별히 유리하지는 않았다. 그러므로 전지훈련 팀을 유치하기 위해서는 지역 내 전지훈련 팀의 유치를 전담할 수 있는 전담팀을 설치하고 학교, 실업 및 연맹 간 협력체계를 구축해야 하며, 전지훈련 팀의 경기력을 향상시켜 줄 수 있는 최첨단 의료 및 경기력 향상 서비스를 제공해 주어야 한다.