http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
일시적 가상현실 운동게임이 선천성 심장병 소아 청소년들의 혈관기능에 미치는 영향
최태구 ( Tae Gu Choi ),김현정 ( Hyun Jeong Kim ),조민정 ( Min Jeong Cho ),김재엽 ( Jae Yeop Kim ),정용준 ( Yong Joon Jung ),제세영 ( Sae Young Jae ) 대한스포츠의학회 2023 대한스포츠의학회지 Vol.41 No.2
Purpose: Regular aerobic exercise improves exercise capacity and quality of life in children with congenital heart disease (CHD), but it remains unclear whether aerobic exercise would improve vascular function in children with CHD. We tested the hypothesis that acute bout of virtual reality (VR) exergame would improve vascular function in children with CHD. Methods: In a single-arm study, eight children (age, 9±1 years; five males) with CHD participated in VR exergame (30 minutes at 40% of heart rate reserve) using a stationary cycle ergometer with a head mount display. Endothelial function and arterial stiffness as surrogate markers of vascular function were assessed via reactive hyperemia index (RHI) and augmentation index (AIx) using peripheral arterial tonometry at baseline and 30 minutes after VR exergame. Results: Compared to baseline, VR exergame improved in RHI (1.08 [0.96-1.30] to 1.16 [1.09-1.36], p< 0.05) and natural log transformed RHI (0.07 [-0.04-0.26] to 0.15 [0.09-0.31], p< 0.05). However, no significant changes were observed for decrease AIx (-1.00 [-9.00-9.50] to -7.00 [-14.00-8.75], p=0.547) and AIx@75 (-6.50 [9.75-3.50] to -4.50 [-13.00-4.50], p=0.735) (all index values are reported as median [interquartile range]). Conclusion: These findings suggest that a single bout of VR exergame has the potential to improve vascular endothelial function in children with CHD.
안승호,전오곤,정명영,최태구,An, Seung-Ho,Jeon, Oh-Gon,Jung, Meong-Young,Choi, Tae-Gu 한국전자통신연구원 1992 전자통신 Vol.14 No.1
광통신 시스팀에서 신호접속용으로 사용되는 광커넥터의 결합기구 중 세라믹 페룰-슬리브의 정렬기구에서 발생하는 성능저하 현상을 다루었다. 성능저하 현상으로 페룰 단면연마시 발생하는 Vertex Eccentricty, 좌굴현상, 환경에 따른 탄성 및 응력의 변화, 마모, 피로파괴 등에 대한 이론적인 배경과 실험결과를 토대로 특성에 대한 영향을 분석하였다.
고지방식이 섭취 후 간헐적 저항성 신체활동을 통한 좌식 차단이 혈관 기능 및 식후 대사기능에 미치는 영향
조민정 ( Min Jeong Cho ),정용준 ( Yong Joon Jung ),김연욱 ( Yun Wook Kim ),최태구 ( Tae Gu Choi ),김재엽 ( Jae Yeop Kim ),김현정 ( Hyun Jeong Kim ),제세영 ( Sae Young Jae ) 대한스포츠의학회 2023 대한스포츠의학회지 Vol.41 No.2
Purpose: Numerous studies have reported the effects of interrupting prolonged sitting with aerobic exercise on vascular and postprandial function, but the effects of resistance exercise for interrupting prolonged sitting remain unclear. We tested the hypothesis that intermittent resistance activity breaks would attenuate prolonged sitting-induced vascular and postprandial metabolic dysfunction. Methods: Fourteen healthy adults (age, 24±2 years; body mass index, 22.0±2.4 kg/㎡) completed two trials in a randomized cross-over design. During a 4-hour sitting after a high-fat meal, the participants underwent either resistance activity (RA) with 10 repetitions of five exercises every hour or uninterrupted sitting as a control trial (SIT). Plasma glucose, triglycerides, and brachial artery blood pressure, along with blood flow and shear rate in the superficial femoral artery and carotid artery were measured at baseline and every hour during the 4-hour sitting period. Brachial artery flow-mediated dilation (FMD) was measured at baseline, 2 hours, and 4 hours after the start of the sitting. Results: Plasma glucose and triglycerides increased after a high-fat meal in both RA and SIT groups without a significant interaction effect. In addition, while SIT group decreased brachial artery FMD (7.2%±2.0% to 6.5%±2.7% to 5.1%±2.6%), RA did not attenuate a decrease in FMD (7.6%±3.4% to 7.3%±3.1% to 6.7%±2.7%, interaction p=0.581). Conclusion: Our findings indicate that interrupting prolonged sitting with intermittent RA did not attenuate the negative effects of sitting on vascular function and postprandial metabolism in young healthy adults.