좌식행동수정이 운동중재 프로그램 참가에 따른 비만 여성의 체지방과 대사증후군의 개선에 미치는 효과

권훈겸,하창덕,강현식 대한비만학회 2012 The Korean journal of obesity Vol.21 No.2

연구배경: 본 연구는 보건소 주간 12주 운동 중재 프로그램에 참가한 비만 중년 여성들을 대상으로 중재 기간 설문을 이용하여 동안 조사한 좌식 행동 수정이 비만지표와 대사증후군의 개선에 미치는 효과를 검정하는 것을 주요 목적으로 하였다. 방법: 비만 중년여성 38명을 대상으로 트레드밀을 이용한유산소 운동과 서킷 웨이트트레이닝, 유연성 운동으로 구성된12주 복합운동중재를 실시하였다. 복합운동중재와 더불어 모든 피검자를 대상으로 중재 기간 동안 매 식사 후 2시간 동안에는 앉기, 기대기, 드러눕기 등의 자세를 취하지 않도록 하는행동수정을 실천할 것을 구두로 지시하고 실천정도를 설문지를 이용하여 자가 기록하게 하였다. 12주간의 중재 프로그램사전 및 사후에는 동일한 조건과 방법으로 신체구성, 체력, 혈중지질, 혈당, 인슐린, 호마지수 등을 측정하였다. 그런 다음후향적 방법으로 좌식행동수정 실천율의 정도에 따라 모든 피검자를 좌식행동수정을 실천한 정도에 따라 좌식행동수정 실천정도에 따라 하위 집단(low 25 percentile group, n = 10),중간 집단(middle 50 percentile group, n = 18) 상위 집단(high 25 percentile group, n = 10)으로 세분화하고 집단별 운동중재에 따른 비만지표 및 대사증후군의 개선정도를 비교하였다. 결과: 체중, 체질량지수, 체지방률, 허리둘레를 포함한 신체구성변인과 대사증후군 위험인자는 12주 운동중재 프로그램후에 유의하게 개선되었다. 뿐만 아니라 예상한 대로 이러한종속변인의 개선정도는 좌식행동수정 실천정도에 따라 하위집단 < 중간 집단 < 상위 집단 순서인 것으로 나타났다. 결론: 따라서 이러한 연구결과에 근거하여 판단할 때 운동중재 프로그램 참여에 따른 비만과 대사증후군의 위험인자의개선효과를 극대화시키기 위해서는 좌식행동수정을 병행하는것이 절실히 필요하다는 사실을 의미한다. Background: The purpose of this study was to investigate the beneficial effects that sedentary behavior modification has on obesity and metabolic syndrome among obese women who participated in a 12 week exercise intervention program. Methods: A total of 38 women voluntarily participated in a 12-week exercise intervention program. The intervention included treadmill aerobic exercise, circuit weight training,stretching and sedentary behavior modification, which was done by reducing sitting time during postprandial periods. Primary outcomes including body fat, physical fitness, and metabolic risk factors were measured prior to and after the intervention. After completion of the intervention, the subjects were classified into one of the following three groups; those who were in the high 25 percentile (n = 10,HIGH group) of reduced sitting time, those who were in the middle 50 percentile (n = 18, MID group), and those in low 25 percentile (n = 10, LOW group). Results: Participating in the 12-week exercise intervention resulted in significant decreases in body weight,body mass index, percent body fat, waist circumference, and metabolic risk factors. Improved parameters of body fat were proportionally and significantly associated with the amount of reduced sitting time since the greatest improvements were found in the HIGH group, which were followed by those of the MID and LOW groups. Conclusions: The findings of the study suggest that reduced sitting time can play a critical role in magnifying the beneficial effects of a combined exercise program on obesity and metabolic risk factors.

복합운동에 의한 체중감량 정도의 차이가 대사증후군 지표, 건강관련체력, 고관절 가동범위에 미치는 영향

권훈겸(Hun-Kyeom Kweon),최규환(Kyu-Hwan Choi),이인환(In-Hwan Lee),강현식(Hyun-Sik Kang) 한국생활환경학회 2016 한국생활환경학회지 Vol.23 No.1

This study was to investigate the effects of combined exercise-induced weight loss on metabolic syndrome markers, health-related fitness and hip joint range of motion (ROM). The combined exercise program were provided at a frequency of 3 sessions in circuit weight training and 5 sessions in aerobic exercise training, per for a duration of 12 weeks on 44 obese women. Then, the subjects were classified into either those whose weight loss belonged to low 25% (n=11), moderate 50% (n=22) and high 25% (n=11) based on the amount of weight loss induced by the combined exercise training. To analyze of test results, two-way repeated measures ANOVA was carried out by each variable. In results, the metabolic syndrome markers as waist circumference (p<.001), total cholesterol (p=.015), high density lipoprotein cholesterol (p=.013) and hip joint ROM variables as flexion (left: p=.019, right: p=.019), extension (left: p=.042), adduction (left: p=.016, right: p=.020) were showed significant interaction between measured time and group, but, health-related fitness was showed no significant interaction. In conclusion, large amounts of weight loss by combined exercise reduced risk of metabolic syndrome, and chronic low back pain can be prevented on obese women.

여자 초등학생의 신체활동과 심폐체력 및 신체구성 그리고 심혈관 위험인자와의 연관성

강현식 ( Hyun Sick Kang ),하창덕 ( Chang Duck Ha ),홍혜련 ( Hye Ryun Hong ),권훈겸 ( Hun Kyeom Kwon ),김성희 ( Seong Hee Kim ),우상구 ( Sang Koo Woo ) 한국운동생리학회(구 한국운동과학회) 2011 운동과학 Vol.20 No.4

강현식, 하창덕, 홍혜련, 권훈겸, 김성희, 우상구. 여자 초등학생의 신체활동량 및 강도와 심폐체력, 신체구성, 심혈관 위험인자와의 상관성. 운동과학, 제20권 제4호. 389-396, 2011. 본 연구의 목적은 기존의 횡단적 연구에서 비만 및 대사증후군의 예방 및 치료를 위해 제시된 13,000보수의 적정보수를 목표로 12주간의 신체활동 중재를 실시한 후, 신체활동량 및 강도와 심폐체력, 비만지표, 심혈관 위험인자의 상관성을 검증하는 것이었다. 본 연구의 대상자는 초등학교 여학생24명(11.79±0.78세)으로 하였고, 12주 신체활동 중재 전과 후에 신장, 체중, 체질량지수, 체지방율, 허리둘레, 최대산소섭취량, 중성지방, 총 콜레스테롤, 고밀도지단백 콜레스테롤, 혈당을 측정하여 분석하였으며, 12주간 1일 13,000보수의 신체활동을 하도록 권고하였다. 연구결과, 12주간의 신체활동 중재를 통해 신장, 체중, BMI, 심폐체력의 유의한 증가가 있는 것으로 나타났다. 신체활동량과 신체구성, 심폐체력, 심혈관질환 위험인자와의 상관성 분석 결과, 신체활동량은 최대산소섭취량과 수축기혈압과 유의한 상관성이 있는 것으로 나타났다. 신체활동 강도와 신체구성, 심폐체력, 심혈관질환 위험인자와의 상관성 분석 결과, 신장과 중강도 및 고강도 신체활동이 상관성이 있는 것으로 나타났다. 결론적으로 초등학교 여학생의 경우 심폐체력증진과 키 성장 자극 그리고 비만 및 심혈관질환 위험인자의 효과적인 개선을 위해서는 중등도 이상의 규칙적인 운동을 포함하여 상당한 수준의 신체활동량(예, 1일 13,000보수)이 필요하다는 사실을 의미하는 것으로 판단된다. Kang, H. S., Ha, C. D., Hong, H. R, Kwon, H. K., Kim, S. H., Woo, S. K. Correlations of physical activity with cardiorespiratory fitness, body composition, and cardiovascular risk factors in elementary school girls. Exercise Science. 20(4): 389-396, 2011. The purpose of current study was to investigate the correlations of physical activity with cardiorespiratory fitness (CRF), body composition, and cardiovascular risk factors in elementary school girls. A total of 24 girls (11.79±0.78 years) voluntarily participated in the physical activity intervention stuy. Before and after the intervention, all the participants underwent a series of measurements including body composition, obesity indices, CRF, and cardiovascular risk factors. Then each participant was invited to participate in a physical activity intervention targeting at 13,000 steps/day, which was predetermined in our preliminary study, for 12 weeks. All participants worn the Life-corder accelerometer to monitor their daily physical activities including its volume and intensity. Height, weight, body mass index, CRF were increased significantly after the 12-week PA intervention. PA volume was positively related to CRF and systolic blood pressure (SBP). Moderate and high PA intensities were positively relate to height growth. In conclusion, the current findings of the study suggest that substantial amount of physical activity (i.e., accumulated 13,000 steps per day) including regular exercise with moderate or higher intensities would be necessary for the improvements of in CRF, obesity indices, and cardiovascular risk factors as well as height growth.

비만관리프로그램이 중년비만여성의 열량영양소섭취에 미치는 영향

한정순,권훈겸,이은희 한국피부미용향장학회 2010 한국피부미용향장학회지 Vol.5 No.3

L-arginine와 GPLC의 투여가 고교 축구선수의 혈중 산화질소, 에너지기질 및 피로 물질 변화에 미치는 영향

양승훈 ( Seung Hoon Yang ),권훈겸 ( Hun Kyeom Kwon ),곽이섭 ( Yi Sub Kwak ) 한국운동생리학회 2015 운동과학 Vol.24 No.3

PURPOSE: The purpose of this study was to investigate the effects of L-arginine and GPLC supplementation on plasma nitric oxide, energy substrates and fatigue factors to football players. 16 football players were recruited from the high school and they were divided into two groups (L-arginine group, n=8; GPLC group, n=8). It is also aimed to evaluate the effect of ergogenic aids (L-arginine, GPLC) administration on the football players performance using Yo-Yo intermittent recovery test (Level 2), which is aerobic-anaerobic mixed exercise similar to actual football game. METHODS: Height, weight and body fat were measured before the test in 16 high school football players. At the experiment of pre-administration and post-administration of ergogenic aids (L-arginine, GPLC), blood was collected 3 times (before exercise, after exercise and 30 minutes at recovery stage) to measure and analyze nitric oxide in the blood, fatigue substances (lactate, ammonia and phosphorus) and energy substrate (Glucose and FFA) respectively. During aerobic-anaerobic mixed exercise, when ergogenic aids (L-arginine and GPLC) was administered to the football players, NO concentration is increased in two groups after administration compared to pre-administration at each stage. RESULTS: There was significant difference at the recovery stage to L-arginine administration group (p=.003). As for change of energy substrate, human serum glucose concentration decreased significantly in statistics at each stage to L-arginine group (pre, p=.014, post, p=.026, recovery p=.025), and decreased significantly right after exercise and at the recovery stage to GPLC group (p=.047, p=.000). The serum FFA (free fatty acids) concentration by the administration of ergogenic aids (L-arginine, GPLC) had no statistically significant difference in every stage. Among the fatigue substances, serum phosphorus concentration decreased significantly at each stage of L-arginine (p=.031, p=.002, p=.001), and decreased significantly at the recovery stage of GPLC group (p=.014). Ammonia concentration decreased significantly to L-arginine group more than GPLC group at each stage after administration compared to pre-administration (L-arginine: p=.005, p=.005, p=.003, GPLC: p=.002, p=.079, p=.003). And there were significant differences before exercise and at the recovery stage to GPLC group. Lactate decreased significantly at each stage after administration to L-arginine and it significantly decreased before exercise and right after exercise to GPLC like in ammonia (L-arginine: p=.012, p=.022, p=.017, GPLC: p=.006, p=.015). CONCLUSIONS: As a result of this research, it was found that NO expression significantly increased from L-arginine dosage group in time of recovery. The generated NO increased the supply and absorption of energy substrates in skeletal muscle metabolism through vasodilation, and decreased accumulation of fatigue substance and delayed the depletion of glucose by having an influence on the increase in blood flow by exercise. n addition, in order to use the method for increasing practical motion performance capability through this research result, it``s necessary to take into account a lot more diverse forms of exercise events, exercise intensity, time and frequency, etc. It is thought that there will be the need to do continuous research on this field later

불안정한 지면에서의 복합운동프로그램이 여성 노인의 낙상관련체력 및 보행기능에 미치는 영향

김준웅(Jun-Woong Kim),권훈겸(Hun-Kyeom Kweon) 한국생활환경학회 2018 한국생활환경학회지 Vol.25 No.1

This study was to investigate the effects of unstable surface combined exercise on fall-related fitness and gait function in elderly women. The subjects were 33 elderly women who were randomly divided into exercise group (n=18) and control group (n=15). Subjects have participated in unstable surface combined exercise on a as resistance, balance, and walking exercise 3 times a week for 60 minutes for 12 weeks. Fall-related fitness including isokinetic leg strength, coordination, and balance was measured in accordance to a standardized fitness assessment manual. Gait function including gait speed, stride length, double support, cadence, gait cycle was measured by Optogait. Two-way ANOVA with repeated measures were used to test significant time by group interactions for measured variables at α=.05. In results, the fall-related fitness as figure 8 walks (p=.014), functional reach test (p<.001), close-eye standing test (p<.001), isokinetic leg strength (left: p<.019, right: p=.001) and gait function variables as stride length (p=.005), double support (p=.009) were showed significant interaction between measured time and group. In conclusion, the current findings of the study suggest that combined exercise in unstable surface provides a safe and effective means against fall prevention, such as improvement of fall-related fitness and gait function in elderly women.