• 융합정보논문지
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• 제9권2호
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• pp.165-171
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• 2019

본 연구의 목적은 SNS에서의 스포츠이슈에 대한 집단감정과 집합행동의 관계를 실증적으로 규명하는 것이다. 이를 위하여 국내 대표 포털사이트로부터 집합행동이 명확히 관찰되는 스포츠이슈 5건과 관련 포털 기사 5건을 선정하였고, 그 댓글 중, 추천 수에 따른 상위 100개 씩 총 500개의 댓글을 집단감정의 분석 대상으로 수집하였다. 또한 해당 이슈로부터 발생한 대중의 행위를 집합행동의 분석대상으로 선택하였다. 각 분석대상 댓글과 집합행동은 전문가 회의를 통하여 1~5점의 점수를 부여하였으며, 이에 대한 일원배치분산분석 및 다중회귀분석 결과는 다음과 같다. 첫째, SNS에서의 스포츠 집단감정은 스포츠이슈에 따라 다르게 나타났다. 둘째, SNS에서의 스포츠이슈에 대한 집단감정과 집합행동 간에는 유의한 인과관계가 있음이 규명되었다. 본 연구는 스포츠 집단감정과 집합행동의 인과적 관계를 계량적 분석을 통하여 실증적으로 규명하였다는 데 의의가 있다.

• 대한스포츠의학회지
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• 제36권4호
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• pp.197-206
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• 2018

Purpose: This study analyzed the muscle activity changes induced by motions of reaching forward and chest expansion that were examined from the bilateral muscles with rectus abdominis, external oblique, multifidus, and longissimus thoracic using Pilates cadillac instrument. Methods: Nine young adult women, who have no musculoskeletal disorder and any of chronic diseases, were participated. Surface electromyography system was used for recording of all signals produced by muscles, and then normalized as percentage of maximum voluntary isometric contraction (%MVIC). The paired t-test and repeated measures of analysis of variance was performed. Results: Reaching-forward motion showed a higher muscle activity from non-dominant external oblique muscle than that of the chest-expansion motion. During both reaching-forward motion and chest-expansion motion, MVIC values collected from dominant side of external oblique muscle were shown a significantly lower than the values obtained from non-dominant side (p<0.05). Conversely, %MVIC values in external oblique muscle collected from dominant side showed a significantly higher than the values obtained from non-dominant side of the same oblique muscle (p<0.05). Reaching-forward motion was caused a higher %MVIC on non-dominant external oblique muscle than that of the chest-expansion motion (p<0.05). Regardless of dominant or non-dominant sides, external oblique muscle was shown the highest activation rate of all the other muscles during reaching forward action, and longissimus thoracic muscle was shown the highest activation rate of all the other muscles during chest expansion action. Conclusion: Reaching-forward motion is suitable for activating an external oblique muscle, and chest-expansion motion is an effective enough in activating of longissimus thoracic muscle.

• 한국운동역학회지
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• 제31권1호
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• pp.16-23
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• 2021

Objective: The purpose of the study was to compare the acceleration and shock attenuation (SA) of the runners with/without low back pain (LBG vs. NLBG) while running at 2.5 m/s, 3.0 m/s, 3.5 m/s and 4.0 m/s. Method: 15 adults without low back pain (age: 23.13±3.46 years, body weight: 70.13±8.94 kg, height: 176.79±3.68 cm, NLBG) and 7 adults with low back pain (age: 27.14±5.81 years, body weight: 73.10±10.74 kg, height: 176.41±3.13 cm, LBG) participated in this study. LBG was recruited through the VAS pain rating scale. All participants ran on an instrumented treadmill (Bertec, USA). Results: The LBG shows statistically greater vertical acceleration at the distal tibia during running at 3.5 m/s and 4.0 m/s and greater shock attenuation from the distal tibia to the head during running at 3.5 m/s compared with the NLBG during running (p<.05). As the speed increased, there was a statistically significant increase in vertical/resultant acceleration and shock attenuation for both groups. Conclusion: The findings indicated that the runners with low back pain (LBG) experience greater impact and shock attenuation compared with non-low back pain group (NLBG) during fast running. However, it is still inconclusive whether high impact on the lower extremity during running is the main cause of low back pain in the population. Thus, it is suggested that the study on low back pain should observe the characteristics of impact during running with individuals' low back pain experience and clinical symptoms.

• 한국운동역학회지
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• 제32권1호
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• pp.31-36
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• 2022

Objective: The purpose of this study was to investigate muscle activation according to the four strap lengths in the TRX plank exercise to provide scientific and accurate data on effective training methods. Method: Twenty healthy men who had at least 6 months of weight training experience and could fully adjusted plank exercise, were participate in this study (age: 25.2 ± 3.7 yrs., height: 174.2 ± 3.9 cm., weight: 71.2 ± 9 kg). To pursue the study purpose, surface electrodes were attached to trunk muscles (pectoralis major, rectus abdominis, external oblique, internal oblique, erector spinae, latissimus dorsi) and lower extramity muscles (gluteus maximus, rectus femoris, gastrocnemius), and the muscle activity was measured using 11-channel electromyography equipment. In order to verify the muscle activation according to the four strap lengths during TRX plank exercise, an one-way ANOVA with repeated measure was used with statistical significance level set at as α=.05. Results: First, there were statistically significant differences in pectoralis major, rectus abdominis, external oblique, internal oblique, and erector spinae among TRX strap lengths. Second, there were statistically significant differences in gluteus maximus, rectus femoris, and gastrocnemius among TRX strap lengths. Third, even though no statistically significant difference found in latissimus dorsi, but increased muscle activation tendency was showed as the length of the strap increased. Conclusion: From the results of this study, it may be possible that TRX exercise prevent injuries and improve lower extremity muscle as well as trunk muscles by setting appropriate length of strap.

• 한국운동역학회지
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• 제32권1호
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• pp.9-16
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• 2022

Objective: The purpose of this study was to investigate how the chronic ankle instability affects postural control during forward jump landing. Method: 20 women with chronic ankle instability (age: 21.7 ± 1.6 yrs, height: 162.1 ± 3.7 cm, weight: 52.2 ± 5.8 kg) and 20 healthy adult women (age: 21.8 ± 1.6 yrs, height: 161.9 ± 4.4 cm, weight: 52.9 ± 7.2 kg) participated in this study. For the forward jump participants were instructed to stand on two legs at a distance of 40% of their body height from the center of force plate. Participants were jump forward over a 15 cm hurdle to the force plate and land on their non-dominant or affected leg. Kinetic and kinematic data were obtained using 8 motion capture cameras and 1 force plates and joint angle, vertical ground reaction force and center of pressure. All statistical analyses were using SPSS 25.0 program. The differences in variables between the two groups were compared through an independent sample t-test, and the significance level was to p < .05. Results: In the hip and knee joint angle, the CAI group showed a smaller flexion angle than the control group, and the knee joint valgus angle was significantly larger. In the case of ankle joint, the CAI group showed a large inversion angle at all events. In the kinetic variables, the vGRF was significantly greater in the CAI group than control group at IC and mGRF. In COP Y, the CAI group showed a lateral shifted center of pressure. Conclusion: Our results indicated that chronic ankle instability decreases the flexion angle of the hip and knee joint, increases the valgus angle of the knee joint, and increases the inversion angle of the ankle joint during landing. In addition, an increase in the maximum vertical ground reaction force and a lateral shifted center of pressure were observed. This suggests that chronic ankle instability increases the risk of non-contact knee injury as well as the risk of lateral ankle sprain during forward jump landing.

• 운동영양학회지
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• 제25권1호
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• pp.16-22
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• 2021

[Purpose] Aerobic exercise training (AT) reverses aging-induced deterioration of arterial stiffness via increased arterial nitric oxide (NO) production. Asymmetric dimethylarginine (ADMA), an endogenous inhibitor of NO synthase, was decreased by AT. However, whether AT-induced changes in ADMA levels are related to changes in nitrite/nitrate (NOx) levels remains unclear. Accordingly, we aimed to clarify whether the relationship between plasma ADMA and NOx levels afected the AT-induced reduction of arterial stifness in middle-aged and older adults. [Methods] Thirty-one healthy middle-aged and older male and female subjects (66.4 ± 1.3 years) were randomly divided into two groups: exercise intervention and sedentary controls. Subjects in the training group completed an 8-week AT (60%-70% peak oxygen uptake [${\dot{V}}O_{2peak}$] for 45 min, 3 days/week). [Results] AT signifcantly increased ${\dot{V}}O_{2peak}$ (P < 0.05) and decreased carotid β-stifness (P < 0.01). Moreover, plasma ADMA levels were significantly decreased while plasma NOx levels and NOx/ADMA ratio were significantly increased by AT (P < 0.01). Additionally, no sex diferences in AT-induced changes of circulating ADMA and NOx levels, NOx/ADMA ratio, and carotid β-stifness were observed. Furthermore, the AT-induced increase in circulating ADMA levels was negatively correlated with an increase in circulating NOx levels (r = -0.414, P < 0.05), and the AT-induced increase in NOx/ADMA ratio was negatively correlated with a decrease in carotid β-stifness (r = -0.514, P < 0.01). [Conclusion] These results suggest that the increase in circulating NOx with reduction of ADMA elicited by AT is associated with a decrease in arterial stiffness regardless of sex in middle-aged and older adults.

• 한국체육학회지인문사회과학편
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• 제54권5호
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• pp.207-219
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• 2015

본 연구는 Martindale et al.(2010)이 개발한 스포츠영재육성환경 질문지(TDEQ)를 개념검토, 내적구조검토, 외적관계검토 등의 개념적, 통계적 검증단계를 거쳐 우리문화에 적합하게 활용될 수 있는지를 확인하였다. 번역본 작성 절차에 따라 문항에 대한 개념검토가 이루어졌고, 제작된 질문지는 244명(고등학생 : 117명, 대학생 : 127명)의 학생선수를 대상으로 자료가 수집되었다. 내적구조는 탐색적/확인적 요인분석, 신뢰도분석 등을 통해 검토되었고, 그 결과 5요인 32문항의 한국판 TDEQ가 최종 완성되었다. 또한 상관분석과 집단차이분석을 이용하여 외적관계에 대한 검토가 이루어졌으며, 타당도를 추가로 확보하였다. 본 연구를 통해 검증된 한국판 TDEQ는 스포츠영재에 대한 탐색, 발굴, 선택, 육성 등의 단계에서 진단 및 평가도구로 활용될 수 있을 것이다.

• 운동영양학회지
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• 제13권3호
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• pp.211-216
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• 2009

This study was conducted to investigate the changes of exercise-induced stress response with acute anaerobic exercise in elite soccer players of university. The subjects were divided into elite soccer players of university (SG, n=10) and control group (CG, n=10). Subjects were tested three consecutive Wingate test for 30 seconds involving 2 times of 3 mins of resting time. In addition, whole blood and capillary blood were collected at rest, immediately post-exercise and 60 mins. of recovery time. Obtained results were as follows: Evaluated mean power and peak power of SG group was significantly higher than that of CG group in the all phase of Wingate test, respectively (p<.01). Although resting serum TG, TC, HDLC levels were not significant difference between SG and CG group, resting serum glucose of SG group was significantly lower than that of CG group. In addition, serum CRP levels of SG group were significantly lower than that of CG group at rest, immediately post-exercise and 60 mins of recovery time, respectively (p<.01). In serum cytokines, in spite of no significant differences in IL-1β levels between SG and CG group, IL-6 levels of SG group were significantly lower than that of CG group at immediately post-exercise and 60 mins. of recovery time, respectively (p<.05, p<.01). From these results, long-term combination training have a crucial role in amelioration of acute exerciseinduced stress response in elite soccer players.

• Journal of Sport and Applied Science
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• 제8권1호
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• pp.11-17
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• 2024

Purpose: The purpose of the study was to understand a trend of esports in terms of gamers' and fans' perceptions toward esports using social big data. Research design, data, and methodology: In this study, researchers first selected keywords related to esports. Then a total of 10,138 buzz data created at twitter, Facebook, news media, blogs, café and community between November 10, 2022 and November 19, 2023 were collected and analyzed with 'Textom', a big data solution. Results: The results of this study were as follows. Firstly, the news data's main articles were about competitions hosted by local governments and policies to revitalize the gaming industry. Secondly, As a result of esports analysis using Textom, there was a lot of interest in the adoption of the Hangzhou Asian Games as an official event and various esports competitions. As a result of the sentiment analysis, the positive content was related to the development potential of the esports industry, and the negative content was a discussion about the fundamental problem of whether esports is truly a sport. Thirdly, As a result of analyzing social big data on esports and the Olympics, there was hope that it would be adopted as an official event in the Olympics due to its adoption as an official event in the Hangzhou Asian Games. Conclusions: There was a positive opinion that the adoption of esports as an official Olympic event had positive content that could improve the quality of the game, and a negative opinion that games with actions that violate the Olympic spirit, such as murder and assault, should not be adopted as an official Olympic event. Further implications were discussed.

• 한국조경학회지
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• 제44권6호
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• pp.26-39
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• 2016

본 연구는 우리나라 도시공원에서 스포츠 활동 중 하나인 스케이트보드 활동이 어떻게 공간적으로 발달하게 되었는지 살펴보고자 한다. 이 과정을 통해 도시공원이 동적 활동을 수용하는데 나타나는 특징과 시사점을 도출해보고자 한다. 연구방법은 신문기사에 나타난 스케이트보드 문화 유입에서부터 공간 설치에 관한 내용을 담론분석을 통해 도출하고, 시기별로 어떠한 요인에 의해 공간 생성 혹은 소멸로 이어졌는지 알아보았다. 연구의 결과는 다음과 같다. 스케이트보드 행태가 공원에서 일부 공간으로 자리 잡은 데는 세 가지 원인으로 설명할 수 있다. 첫째, 도시 공원이 스케이트보드 이용에 적절한 장소로 이용자와 운영자 모두 받아드렸고, 이 이용에 대한 긍정적 시대 담론과 결합해 공원정비가 이루어졌다. 둘째, 시대적으로 다른 신생, 혹은 대중적 스포츠와 흐름을 같이 하면서 복합적인 용도 공간 창출이 가능할 때 스케이트 파크가 집중적으로 발달하였다. 셋째, 신도시간의 문화 비교 양상과 공원 유치를 스포츠 마케팅의 수단이 되어 지역경제를 부흥하려는 양상을 볼 수 있고, 이때 스케이트보드 공원의 보급이 이루어졌다. 반대로 공간 소멸로 이어지는 원인은 첫째, 일부 공간을 점유하는 방식이나 장소의 행태가 부딪치는 공간은 소멸로 이어졌다. 둘째, 이용자 행태를 담지 못한 설비의 부적절함과 일시적이고 이벤트성의 대회, 행태만을 위한 설비가 공간 자체를 오래 이용할 수 없는 설비로 이어졌다. 셋째, 메가 이벤트의 개최와는 상관없이 국내에서는 이런 기물을 지속적으로 활용할 만큼 문화현상이 지속되지 않았고, 공간용도와 다른 행태를 유도하는 스케이트보드 문화가 이어져 전용 공간에 대한 관심이 멀어지게 되었다. 분석 내용을 바탕으로 한 도시공원과 스포츠 활동의 수용에 대한 논의는 다음과 같은 과제를 논할 수 있다. 첫째, 일시적인 이슈와 경향 등 공간의 설정에 대한 담론을 뛰어넘는 스포츠 활동을 제공할 수 있는 계획 설정이 부족하다. 둘째, 공간적의 설정에서부터 생성 이후에 따라오는 공원에서 스포츠 활동 운영에 있어서 공간과 활동의 상호작용이 부족하다. 셋째, 다양하게 나타나는 스포츠 활동과 기존 공간의 문제점을 적극적으로 다양한 시도로 해결하는 움직임이 필요하다. 본 연구는 공원에서 스포츠 활동의 수용과 발달에 대한 고찰을 통해 현 도시공원의 체재에서 동적 행태를 수용하는 동안 나타나는 상황들을 파악해 봄으로써 스포츠를 공원에 계획하는 것에 대한 문제를 제고해볼 수 있는 연구가 될 수 있도록 하였다.