• Journal of Digital Convergence
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• v.16 no.2
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• pp.375-383
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• 2018

The purpose of this study was to investigate the effect of exercise training on health-related physical fitness and osteoporosis after 12 weeks of combined training for adults with intellectual disabilities diagnosed with obesity and osteoporosis. The subjects conducted a combined training program consisting of aerobic exercise and strength training twice a week for 12 weeks. Body composition and bone mineral density were measured before exercise, 6, 12 weeks, and health-related physical fitness was measured before and after exercise. Body weight and body fat decreased after exercise and bone density increased after exercise compared to before exercise. Muscle strength, muscle endurance and flexibility were improved after exercise compared to before exercise. It was confirmed that the 12 week compound training increased the leg strength and improved the functions such as walking and running, and increased the health-related fitness and increased bone mineral density.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.272-279
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• 2018

This study was conducted to compare the muscle strength, muscle power, and H/Q ratio according to energy system contribution in athletes participating in various sports. Subjects of the study were assigned into an Anaerobic Exercise Group (AEG, n=60; Short-Distance, Weight Lifting, Jumping, Throwing, Bowling, Golf) and an Endurance Exercise Group (EEG, n=60; Modern Pentathlon, Field Hockey, Handball, Cycle, Boxing, Rowing) groups. Isokinetic peak torque/body weight% and flexor/extensor ratio at 60, 180 deg/sec of knee extension and flexion were measured using an cybex 770. Data analysis was conducted using an independent t-test and one-way ANOVA. Based on the results of this study, there was higher extension, flexion strength and flexion power in the AEG than the EEG (p<0.05). We also confirmed higher muscle strength and muscle power in short distance and jumping athletes than other athletes participating in other events (p<0.05). However, there was no significant difference within the endurance exercise group. The HS ratio was within a stable range of 50% to 60% in all events. Collectively, the outcomes of this study indicate that routine physiological and performance testing can provide measurable benefits for elite athletes and their coaches.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2021.06a
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• pp.290-292
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• 2021

본 논문에서는 머신 러닝 (machine learning)을 이용하여 x, y, z 세 축의 가속도계 측정 값을 이용하여 5 가지 유산소 운동을 분류하는 알고리즘을 제시한다. 제안하는 알고리즘으로는 운동 데이터 각 샘플 마다 운동을 분류한 개별 판단, 판단된 데이터 샘플을 그룹 지어 판단하는 다수결 판단, 각 데이터 샘플의 분류하여 확률을 결합하는 확률 누적 판단이 있으며 이를 적용하여 5 가지 유산소 운동을 분류하고 성능을 비교한다.

• Journal of the Korean Applied Science and Technology
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• v.35 no.2
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• pp.412-422
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• 2018

The purpose of this study was to investigate effects of 12-weeks aerobic exercise and taekwondo exercise on brain wave activation and brain-derived neurotrophic factors in undergraduate male students. Twenty four male subjects participated in this study. They were separated into a Control group(CG; n=8), Aerobic training group (ATG; n=8) and Taekwondo training group(TTG; n=8). ATG and TTG participated in Aerobic exercise training and Taekwondo exercise training for 12 weeks, 50~80 minutes per day, 3 times a week at 60~80% HRR respectively. All data were analyzed by repeated measures two-way ANOVA. As a result, there were no significant differences in the body composition and brain activation in all groups. However BDNF increased significantly after 12 weeks in the aerobic training groups(ATG). It is suggest that 12 weeks of regular Taekwondo exercise training did not statistically affect brain activation and neurotrophic factors in undergraduate students.

• 건강소식
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• v.34 no.8
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• pp.12-13
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• 2010

노년에게는 근력운동이 아닌 걷기, 달리기, 수영 등 유산소운동이 적합한 운동으로 알고 있다. 근력운동을 하다가 자칫 잘못하면 더 큰 부상을 당할 수 있고, 운동 효율이 낮기 때문이다. 하지만 최근에는 근력운동이 노년에게도 필요하다는 주장이 점차 힘을 얻고 있는 추세이다. 구릿빛 피부에 울퉁불퉁한 식스팩까지는 아니지만 분명 노년을 건강하게 보내기 위해서는 근육이 필요하다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.549-558
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• 2017

The aim of this study was to analyze the effects of aerobic exercise on the blood lipids, leptin, ghrelin, and HOMA-IR factors in obese postmenopausal Korean women. Thirty-six healthy postmenopausal women (mean age, $54.47{\pm}2.50$ years) with >32 % body fat were assigned randomly to an aerobic exercise group (n = 18) or to a "no exercise" control group (n = 18). The subjects' body composition, blood lipid, leptin, ghrelin levels, and HOMA-IR were measured before and after a 16-week line-dancing program. The exercise group showed a significant decrease in body weight, percent body fat, body mass index, visceral fat area, leptin, insulin, glucose, HOMA-IR, total cholesterol, triglycerides, apolipoprotein B, low-density lipoprotein cholesterol, and systolic and diastolic blood pressure. In addition, this group exhibited a significant increase in the apolipoprotein A-I, ghrelin, and high-density lipoprotein cholesterol levels. The energy metabolic factors that influenced the visceral fat included ghrelin, leptin, insulin, glucose, and HOMA-IR. The t-value, which determined the statistical significance of the independent variables, was significant for ghrelin, glucose, insulin, and HOMA-IR (p < 0.05). Regular and continuous aerobic exercise (e.g., line dancing) effectively improved the body composition, visceral fat, serum blood lipids, leptin, ghrelin, and HOMA-IR factors in obese postmenopausal Korean women.

• Journal of Navigation and Port Research
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• v.34 no.10
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• pp.757-762
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• 2010

The purposes of this study were to examine the effects of aerobic exercise capacity on free oxygen radicals in blood(FORB) during submaximal exercise in rowing ergometer and as for study purposes, a set of experiments were conducted using one group of 6 rowing players(RP) and the other group of 6 non rowing players(NRP) at the maximum heart rate reserve(HRR) 85~90% exercise intensity. Oxygen free radical was sampled 5 times including a rest period(ARP), immediate after exercise(IAE), 10 minutes after exercise(10MAE), 20 minutes after exercise(20MAE) and 30 minutes after exercise(30MAE). Accordingly, following findings were derived from current study. The effects of interaction between groups and times were significant in oxygen free radical(p<.05) and post hoc tests revealed that significant differences occurred between 10MAE and 20MAE and between 20MAE and 30MAE. In conclusion, the aerobic exercise capacity excellence RP group had more positive recovery pattern than that in the NRP group from FORB of negative influence to the human body

• The Monthly Diabetes
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• s.258
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• pp.44-45
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• 2011

최근 발표된 고대구로병원 최경묵 교수의 연구에 따르면 당뇨병환자의 근육감소증 발병률이 일반인에 비해 3배나 높은 것으로 나타났다. 실제 근육이 많으면 당 조절에도 효과적인 것으로 알려져 있다. 당뇨병에서 걷기나 달리기 등 유산소운동의 중요성에 대해서 많이 알려져 있고, 실제 대부분의 환자들이 실천하고 있지만, 근력운동은 소홀한 경우가 많다.

• Journal of the Korean Applied Science and Technology
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• v.38 no.3
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• pp.750-761
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• 2021

This study was performed to observe the responses of angiogenesis-related protein expression in skeletal muscle of aged rats by regular resistance exercise training with aerobic exercise. For the purpose of the study, naturally aged SD rats (20-24 months, N=18) were used and divided into control (CON, n=6), resistance exercise (RE, n=6), and resistance + aerobic exercise (RE + AE, n=6) groups. RE group performed 3 sets × 4 exercises each session using a ladder for laboratory animals, and RE +AE group performed 2 sets × 3 times of ladder climbing and additional treadmill running (30 min) each session. After 8 weeks of exercise training, soleus muscle and extensor digitorum longus muscle (EDL) were extracted and used for analysis. Western blot was performed to analyze the expression levels of angiogenesis-related proteins (HIF-1α, VEGF, FLK-1, Ang-1, Ang-2) in skeletal muscle. As a result of the study, the expression of HIF-1α, VEGF, FLK-1, Ang-1, and Ang-2 proteins in soleus muscle (type I muscle) was higher in RE +AE than in CON group, and HIF-1α, VEGF, Ang-1, Ang-2 protein expression of RE group was higher than that of CON group. Furthermore, Ang-2 to Ang-1 ratio of RE + AE group was higher than that of RE group, showing differences by exercise type. In EDL muscle (type II muscle), HIF-1α was increased only by RE group, whereas VEGF and FLK-1 protein expressions were increased in both training types, and no difference was observed between the types of exercise training. In addition, there was no difference in angiopoieitin protein expressions in EDL muscle by exercise training. Therefore, in aging, regular exercise training induces skeletal muscle angiogenic response regardless of exercise type, and in particular, the combination of aerobic exercise with resistance exercise may have an additional positive effect on angiogenesis in type I muscle.

• Journal of Life Science
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• v.29 no.8
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• pp.837-845
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• 2019

The purpose of this study was to analyze the effects of aerobic exercise and resveratrol supplementation on mitochondrial biogenesis in skeletal muscle of high-fat diet-induced obese mice. In this study, 4-wk-old C57BL/6 male mice were divided into four groups, with 10 animals in each group: a normal diet group (NC), high-fat diet group (HC), high-fat diet group with resveratrol supplementation (HRe), and high-fat diet GROUP with exercise (HE). Aerobic exercise was performed on a treadmill for 40~60 min/d at 10~14 m/min, 0% grade, 4 d/wk for 16 wk. Resveratrol (25 mg/kg bodyweight) was administrated once a day, 4 d/wk for 16 wk. There was a significance difference in COX-IV mRNA expression in the NC group versus that in the HC group (p<0.05). The expression of the SIRT-3, PGC-1a, and COX-IV mRNA genes in the HE group increased significantly as compared with the expression of these genes in the HC and HRe groups (p<0.05). These results indicated that high- fat diet-induced obesity did not affect mitochondria biogenesis gene expression in skeletal muscle. In contrast, aerobic exercise training increased the expression of mitochondria biogenesis gene expression in skeletal muscle in high-fat diet-induced obese mice. These findings suggested that aerobic exercise but not resveratrol supplementation had a positive effect on mitochondrial biogenesis in skeletal muscle in high-fat diet-induced obese mice.