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남자 대학운동선수의 신체조성과 유산소성 능력 및 무산소성 파워의 관계
진정권(Jin, Jung-Kwon),공성아(Kong, Sung-A),임승길(Lim, Seung-Kil) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.2
The purpose of this study was to investigate the relationship between body composition, aerobic ability, and anaerobic power in male college athletes. The subjects of this study were 113 male college athletes. Body composition was measured using bioimpedance analysis device. The aerobic capacity was measured the VO₂max(ml/kg/min) and VO₂ anaerobic threshold (AT, %) by the graded exercise test using a treadmill. Anaerobic power was measured using sargent jump. For data analysis, Pearson"s correlation analysis, simple and multiple linear regression analysis were performed to confirm the relationship and influence of body composition, aerobic ability, and anaerobic power. The significance level was set to α=.05. As a result of the correlation analysis, weight, body mass index(BMI), % body fat, body fat mass(kg), and lean body mass(kg) have a negative correlation with the VO₂max (r= -0.45~-0.65). The lean body mass(%) has a positive correlation with the VO₂max(r=0.53). There is a positive correlation(r=0.23, 0.25) between body weight and fat-free mass. Body weight, BMI, % body fat, body fat mass(kg), and lean body mass(kg) have a negative correlation with anaerobic power(r= -0.24~-0.58), and lean body mass has a positive correlation with anaerobic power(r=0.54). As a result of simple regression analysis, the increase of body weight, BMI, % body fat, body fat mass(kg), and lean mass(kg) was associated with a decrease in VO₂max. Increased of body weight and lean mass(kg) are associated with a decrease in VO₂AT. As a result of simple regression analysis, an increase of body weight, BMI, % body fat, body fat(kg), and lean body mass(kg) was associated with a decrease in VO₂AT. The increase of lean body mass(%) is associated with an increase in anaerobic power. As a result of multiple regression analysis, the explanatory power for the VO₂max of % body fat was 42.8%, and the explanatory power for the anaerobic power of body weight and lean mass was 34.8%. The explanatory power for the AT of lean mass(kg) was relatively low at 5%. The body composition of college athletes is related to aerobic ability and anaerobic power. College athletes are encouraged to manage their body composition to improve their performance, and rather than increase the muscle mass of the whole body, they should selectively develop muscles that are directly related to performance improvement and damage prevention in terms of functionality.
12주간의 저항성 운동이 뇌졸중으로 인한 편마비 환자의 보행능력에 미치는 영향
공성아 ( Sung A Kong ),유승희 ( Seung Hee Yoo ) 한국스포츠정책과학원(구 한국스포츠개발원) 2005 체육과학연구 Vol.16 No.4
본 연구의 목적은 12주간 탄력 밴드를 이용하여 실시한 저항성 운동 트레이닝이 편마비 환자의 보행능력에 미치는 영향을 규명하는 것이다. 뇌졸중으로 인한 편마비 환자 26명을 선정하여 트레이닝 집단 13명과 비교 집단 13명으로 구성하였다. 트레이닝 집단은 일일 60분, 주 3회, 12주간의 탄력 밴드를 이용한 저항성 트레이닝을 실시하였고, 비교 집단은 평상시 생활을 그대로 유지하도록 하였다. 운동 트레이닝의 내용은 Smith et al.(1999), Dean et al.(2000), Weiss et al.(2000), 그리고 김현수와 김남정(2003) 등의 연구방법을 기초로 하였다. 트레이닝 집단의 경우 12주간의 근력 강화 운동 프로그램 실시 후 10m 보행 속도에서 25.97% 향상되었으며, 비교 집단의 경우 3.8%의 향상을 보였다. 10m 보행 시 분당 걸음수는 트레이닝 집단의 경우 17.55% 향상되었으며, 비교 집단의 경우 4.16% 향상되어 10m 보행능력 검사에 있어서는 트레이닝 집단에서 통계적으로 의미 있는 향상을 가져왔다. 6m 걷기에 있어 트레이닝 집단의 경우 27.33% 향상되었으며, 비교 집단의 경우 9.90%의 향상되었고, 3m 뒤고 걷기 75.52% 향상되었으며, 비교 집단의 경우 28.85% 향상을 가져와 트레이닝 집단에서 통계적 의미 있는 향상을 가져왔다. 4개 계단 오르기와 4개 계단 내려오기 및 2.44m 반환점 되돌아 앉기에 있어 트레이닝 집단에서 각각 36.00%, 30.00%, 26.04% 향상되었으며, 비교 집단에서 각각 14.58%, 16.67%, 9.02% 향상을 가져와 트레이닝 집단에서 통계적으로 의미 있는 향상을 보였다. 이상의 결과를 토대로 볼 때, 12주간 탄력 밴드를 이용한 저항성 운동 트레이닝은 뇌졸중으로 인한 편마비 환자의 보행능력에 의미 있는 개선을 가져온 것으로 나타났다. 따라서 편마비 환자와 장애인 및 노인과 같이 근력 약화에 의해 보행에 장애가 있어 삶의 질 저하를 가져온 대상자에게 상해 발생률이 상대적으로 낮은 탄력 밴드 저항성 운동은 보행능력의 긍정적 개선을 통해 일상생활에서의 기능 향상과 생활 범위의 확대에 있어 의미 있는 운동 프로그램이라고 판단된다. The study was designed to investigate the effects of a 12-week resistance exercise training on gait in ambulatory chronic hemiparetic stroke patients. Twenty six patients were volunteered to participate in the study as subjects and were assigned randomly into one of two groups, i.e., resistance exercise training group (TR: n=13) and control group (CON: n=13). The pretest-posttest randomized-groups design was utilized in the study. In pre test, 10m gait test, and 6m forward walk, 3m back walk, Stairs up 4 steps, Stairs down 4 steps, 2.44m up and go were measured. In the 10m gait test, 10m gait, 10m gait cadence, and 10m gait stride were measured. The subjects in the TR group went through the resistance exercise training utilizing the thera-band, performed for 60 minutes per session, three times per week for 12 weeks, whereas the subjects in the CON group were asked not to change their normal life style during the intervention period. In post test, all variables were measured again as same manner as the pre test. The data collected in the pre and post tests at the TR and the CON group were compared utilizing two-way ANOVA. The results obtained in the present study were as follows: 1) There were significant increase in 10m gait speed and 10m gait stride in the TR group due to the training. 2) There were statistically significant enhancement in 6m forward walk (32.46%), 3m back walk (75.52%), Stairs up 4 steps (36%), Stairs down 4 steps (30%), 2.44m up and go (26.04%) in the TR group. There were training effects in the variables, considering the changes occurred in the CON group. It was concluded that the 12-week resistance exercise training elicited the enhancement of the gait.
12주간의 저항성 트레이닝이 뇌졸중 편마비자의 보행능력과 신체활동에 미치는 영향
공성아(Sung A Kong) 한국사회체육학회 2009 한국사회체육학회지 Vol.0 No.37
The study was designed to investigate the effects of a 12-week resistance exercise training on gait ability and physical activity in stroke. Twenty six patients were volunteered to participate in the study as subjects and were assigned randomly into one of two groups, i.e., training group(n=15) and control group(n=11). In test, gait ability test and physical activity were measured. The subjects in the TR group went through the resistance exercise training utilizing the thera-band, performed for 60 minutes per session, three times per week for 12 weeks. The results obtained in the present study were as follows: 1) Gait ability test showed 10m gait test(sec, step) and 6 meter walking(sec) significant increase in the TR group due to the training(p<.05). 2) Physical activity showed energy expenditure(㎉/day), physical activity count(counts/day) and moderate activity time(min/day) significant increase in the TR group due to the training(p<.05). It was concluded that the 12-week resistance exercise training elicited the enhancement of the gait ability and physical activity.
김난수(Nan-Soo Kim),공성아(Sung-A Kong),김현수(Hyun-Soo Kim) 한국생활환경학회 2011 한국생활환경학회지 Vol.18 No.2
We are undertaking the Research Project on Fitness of Asian Elderly Population with Chinese and Japan as well as Korean investigators to obtain a guideline for health-projecting and fitness-promoting measures for the elderly. The purpose of this study was to evaluate functional fitness (FF) of community-dwelling elderly among Korean, Chinese and Japanese. The subjects were 1951 (386 Koreans, 743 Chinese, and 822 Japanese) older people. Six performance test items related to FF were measured in Korea, China, and Japan by using same instruments. The data were analyzed by one-way ANOVA. Korean, Chinese and Japan males were not significantly different in balance except 65-69 yrs. Korea, China and Japan females were not significantly different in balance (over age 80) and strength (aged 60-64 yrs). But Japanese had significantly higher FF scores than both Korean and Chinese in elderly people, although the magnitude of this difference depended on the items. The data suggest that (1) advancing age significantly affects performance for almost all items in older people of three countries, (2) that the higher functional fitness levels may reflect a lifestyle of more engagement in exercise or physical activity with a longer duration and a higher frequency in Japanese.