• Proceedings of the Korea Information Processing Society Conference
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• 2014.04a
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• pp.1034-1037
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• 2014

2013년도에 자전거 판매량이 100 만대를 돌파하면서 자전거 운동에 대한 사람들의 관심이 증가하고 있다. 뿐만 아니라, 서울시 등 각 지방 자치에서 자전거 도로를 설치하고 자전거 코스를 제공하는 등 국민의 건강관리에 힘쓰고 있다. 자전거를 통한 건강관리에 대한 관심이 증대되면서 스마트 디바이스를 활용한 운동 관련 어플리케이션도 역시 증가하고 있다. 본인의 기록을 측정하기 어렵고 별도의 장비가 필요하던 과거와 달리 이제는 누구나 가지고 있는 스마트폰만으로도 자신의 운동을 효율적으로 자신의 운동을 관리할 수 있도록 하는 어플리케이션이 인기를 끌고 있다. 이러한 수요에 맞추어 스마트 상의 GPS 센서를 이용한 자전거 가이드 시스템 '자전거로 달려볼까'는 별도의 센서를 부착할 필요 없이 스마트폰에 기본적으로 포함되어 있는 GPS 센서를 이용하여 사용자에게 운동 기록 측정, 기록 보기, 코스 및 날씨정보를 제공한다.

• Journal of the Korea Convergence Society
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• v.9 no.10
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• pp.449-456
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• 2018

The purpose of this study was to identify the effects of bicycling exercise by analyzing the changes of inflammation-related factors and growth hormone with obese middle-aged women for 8 weeks to identify the effects of bicycle exercise. In this study, 15 middle aged obese women were divided into exercise group and control group. Changes in inflammation-related factors and growth hormone were analyzed as a measurement variable were analyzed by employing two-way ANOVA with repeated measures. This study finds that $TNF-{\alpha}$ and IL-6 were significantly decreased in the exercise group and increased in the control group. Growth hormone was increased in the exercise group but not in the control group. The results of this study suggest that bicycling exercise is an exercise program to prevent cardiovascular and chronic diseases of obese middle-aged women.

• Journal of Life Science
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• v.18 no.9
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• pp.1263-1270
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• 2008

The purpose of this study is to investigate the effect of exercise mode and anti-hypertensive drug responding status on the cardiovascular response and perceived exertion in acute coronary syndrome (ACS) patients. Seventy-five patients who participated in six-week exercise rehabilitation therapy performed a treadmill running and a cycle ergometer exercise at intensities of 60%HRR and 85%HRR respectively. Systolic and diastolic blood pressure, mean arterial blood pressure (MAP), rate pressure production (RPP), and ratings of perceived exertion (RPE) were measured. The results of cardiovascular response by the different exercise modes with moderate and intensive intensity of anti-hypertensive drug responder and nonresponder ACS patients were following: First cycle ergometer exercise induced significantly higher SBP, DBP, MAP, RPP and MAP than treadmill running exercise at the intensities of 60%HRR and 85%HRR in both anti-hypertensive responder and nonresponder ACS patients (p<0.05). Secondly anti-hypertensive nonresponder ACS patients had significantly higher DBP and MAP that anti-hypertensive responder ACS patients at all the exercise modes (p<0.05). Finally there was no difference of RPP between anti-hypertensive responder and nomresponder ACS patients, although anti-hypertensive nonresponder ACS patients showed higher blood pressure and RPP than anti-hypertensive responder ACS patients. In conclusion, cycle ergometer induced increased cardiovascular response at same intensities of treadmill running exercise and anti-hypertensive nonresponder ACS patients had even more increased cardiovascular response than anti-hypertensive responder ACS patients with no difference in perceived exertion during exercise. These results suggested that cycle ergometer exercise should be greatly careful with the risk of higher blood pressure, especially for those who are patients with hypertensive blood pressure.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.311-312
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• 2021

본 연구는 실내외 자전거 운동 시 빈번히 발생하고 있는 무릎상해를 예방하기 위해 자전거 운동을 실시할 때 올바른 자세를 유지 할 수 있도록 도와주는 보호 장비 개발 내용이다. 자전거 운동 시 발생할 수 있는 손상을 예방하기 위해서는 안장의 높이, 좌우 무릎사이의 간격, 무릎 각도가 안전한 각도 범위내에 있어야 한다. 본 연구에서는 이러한 무릎의 올바른 정렬을 유지한 채 운동을 지속할 수 있도록 센서부와 제어기로 구성되는 것을 특징으로 한다. 센서부는 가속도 센서, 자이로 센서, 속도감지 센서로 구성하여 자전거 운동 시 정상적인 무릎정렬과 비교하여 올바르지 못한 정렬 상태에서 운동 시 즉시 피드백하여 자세를 수정할 수 있도록 유도해 무릎의 상해를 예방하는 실내외 자전거 이용 시 운동 상해를 예방하기 위한 무릎 보호대를 개발하고자 한다.

• 건강소식
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• v.35 no.6
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• pp.26-27
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• 2011

한때 자동차에 밀려 찬밥 신세를 면하기 어려웠던 자전거가 건강한 생활을 도와주는 취미생활로 떠올랐다. 유산소 운동으로 비만과 성인병을 예방하는데 효과적이며 변하는 계절의 풍경을 즐길 수 있는 생활 속 자전거 타기에 도전해보는 것은 어떨까.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.14 no.1
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• pp.78-90
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• 2021

The purpose of this study was to develop the mathematic algorithm for energy expenditure calculation during cycling as a part of the development of a higher value-added cycle. Participants were 60 university students (male 30, female 30). Energy expenditure was measured with breathing gas at 10 sec intervals by gas analyzer connected with stationary cycle ergometer. Values presented by commercial speedometer and preceding researches were used for verification of actual measurement values in this study. In conclusion, the mathematic algorithms for energy expenditure calculation during cycling were as follows. For male, energy expenditure(Kcal)=5.048×cycling time(min)-2.258, energy expenditure(Kcal)=(0.05×cycling velocity(kph))×(4.750×cycling time(min)+0.091). For female, energy expenditure(Kcal)=4.466×cycling time(min)-1.605, energy expenditure(Kcal)(cycling velocity≤20kph)=(0.05×cycling velocity(kph))×(4.151× cycling time(min)-0.736), energy expenditure(Kcal)(cycling velocity>20kph)=(0.04×cycling velocity(kph)) ×(4.151×cycling time(min) -0.736). And it is suggested that the developed algorithm with cycling time and velocity should be applied for the development of a higher value-added cycle.

• Journal of the Korea Society of Computer and Information
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• v.28 no.5
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• pp.83-93
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• 2023

The purpose of this study is to improve pain and injury through bicycle fitting and to propose rehabilitation methods. Pain and injuries caused by bicycles can be largely divided into knee and ankle pain, wrist, shoulder, neck, and back pain, and hip pain. The cause of these pains and injuries stems from incorrect bicycle fitting and posture. In order to improve these pain and injuries and prevent recurrence, appropriate bicycle fitting and rehabilitation exercise are needed. Pain and injury are divided into kinetic pain and pain by a fixed posture. In the case of kinetic pain, rehabilitation exercise is required along with inflammatory treatment, and pain by a fixed posture should understand the exact characteristics of the body and learn and practice bicycle posture according to the body's characteristics. Through this method, it can contribute to preventing the recurrence of bicycle pain and injuries and further creating an environment where a safe bicycle culture can be established.

• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.86-95
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• 2019

Diabetic patients need exercise, diet and medication to keep normal glucose levels. Therapeutic exercise is good to control the glucose level and emotional stability. There are many studies to identify the relationship between them glucose drop and exercise load. However, there are few studies on exercise system that patients can easily calculate appropriate exercise tolerance at home and coaching exercise by individual. This paper presents simple exercise tolerance test and exercise coaching algorithm with indoor bicycle. We measure the change of glucose level before and after exercise. Then, the coaching program for the exercise is established by the proposed exercise tolerance test. From the simulation results, glucose levels were decreased after exercise for all experimental participants. The diabetics kept the lowered glucose level after 30 minutes of exercise.

• 건강소식
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• v.34 no.5
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• pp.32-33
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• 2010

산에서 자전거를 탄다? 일반 도로에서 자전거를 타는 것조차 부담스러운 이들에게는 정말이지 먼 세상의 이야기처럼 들릴지도 모른다. 하지만 연령이나 성별의 제한 없이 누구든 즐길 수 있으며, 혼탁한 도시를 벗어나 탁 트인 자연환경을 벗 삼아 즐길 수 있는 짜릿한 무공해 스포츠라면? 게다가 어렵게 도달한 정상엣 하산할 때 묘한 쾌감을 느낄 수도 있는 전신운동에다 심폐기능 향상에도 도움이 된다면 어떤가? 구미가 당기지 않는가? 바로 산악자전거 얘기다.

• The Journal of the Korea Contents Association
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• v.20 no.11
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• pp.511-524
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• 2020

Purpose: This study aims to examine the effect of increased physical activity (PA) regarding health-related quality of life (QOL) and nutrition intake in hemodialysis patients. Methods: The research was quasi-experimental using pre-test and posttest design. The participants were 60 patients, 30 each in the experimental and control group. The program was up to eight weeks long and involved two kinds of aerobic exercises: intradialytic aerobic exercise to be performed thrice a week and walking for up to seven days a week. The 60 patients undergoing hemodialysis for end-stage renal disease underwent assessment of International Physical Activity Questionnaires (IPAQ), 24-hour diet recall and a 12-item short-form health survey (SF-12; physical component summary score(PCS) and mental component summary score(MCS)) before and after the exercise program. Nutrition intake was assessed using CAN-2.0. Data were analyzed using descriptive statistics, independent t-test, 𝑥2 test, and Mann-Whitney U test. Results: In the experimental group, PA post-test scores were also significantly higher than the pre-test scores and the levels of physical component summary score (PCS) in QOL were significantly improved post-test, but the scores on nutrient intake did not improve. The levels of PCS were significant correlations animal protein, manganese, selenium, and Vitamin C. Although there was no group effect, total calorie of nutrition intake was higher than the comparison group. Conclusion: Combined intradialytic exercise and walking was found to be effective on PA, and PCS in QOL. Therefore, the findings of the current study may provide an appropriate guidance for encouraging exercise by hemodialysis patient.