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안근희 한국엔터테인먼트산업학회 2022 한국엔터테인먼트산업학회논문지 Vol.16 No.5
Objectives: The purpose of this study was to evaluate the health-related physical fitness factors of Korean type 2 diabetes mellitus(T2DM) and to analyze the difference in physical fitness according to the body fat percentage(%BF). Methods: We measured the grip strength(DAKEI, T.K.K.), upper body strength(bench press) 1 repetition maximum(1RM) and lower body strength(leg press) 1RM(Keiser, Fresno), and body fat percentage(%BF) using bio impedance analyzer(Inbody; Biospace) with T2DM. The health-related physical fitness were evaluated by classifying them into the physical fitness category of American College of Sports Medicine(ACSM). In addition, it was verified whether there was a difference in physical strength according to the grade of obesity. Results: Participants were female 31(67.4%); age, 60.35±7.63 years; body mass index(BMI) 25.83±3.64 / ; glycosylated hemoglobin 7.83%; %BF, 31.10±7.69%. Age-adjusted %BF, grade 1(G1: good) was significantly lower than grade 3(G3: poor). In the grip strength test, there was a significant difference between grade 2(G2: fair) and G3. On the other hand, there were women who corresponded to G1, and there was a significant difference between 3 grades. As a results of the post-hoc test, G1 was significantly higher than G2 and G3, and G2 was significantly higher than G3. In the bench press 1RM test, G2 was significantly higher than G3. All females were in included in G3. In case of males, the leg press 1RM test, G1 was significantly higher than G3. Females also showed a significant difference between grades and G1 was significantly higher than G2 and G3. There was a difference in grip strength between grades classified by %BF, and G1 was higher than G3. Upper body strength also showed a significant difference between grades, and G1 was significantly higher than G3. Conclusion: As a result of a health-related physical examination of Korean type 2 diabetes patients, males showed low levels of grip strength and upper body strength, so training to strengthen upper body exercise is recommended. In particular, for females, the ratio of poor %BF and upper body muscle strength is high, so exercise that can lower %BF and exercise that can strengthen upper body muscle strength is recommended. This phenomenon was more pronounced as the %BF increased.
안근희,한경아,손태서,박이병,김혜진,문성대,민경완 대한당뇨병학회 2020 Diabetes and Metabolism Journal Vol.44 No.2
Background: Sedentary behavior (SB) has emerged as a new risk factor for cardiovascular accidents. We investigated whether physical activity levels or SB were related to percent body fat (%BF) in type 2 diabetes mellitus (T2DM). Methods: In this cross sectional study, we measured the duration of SB, light physical activity (LPA), moderate to vigorous physical activity (MVPA), total energy expenditure, and step counts using a wireless activity tracker (Fitbit HR; FB) for 7 days in freeliving conditions, along with %BF using a bio impedance analyzer (Inbody; Biospace) in 120 smartphone users with T2DM. Subjects were divided into exercise (Exe, n=68) and non-exercise (nonExe, n=52) groups based on self-reports of whether the recommended exercises (30 min/day, 3 days/week for 3 months) were performed. SBt, LPAt, MVPAt were transformed from SB, LPA, MVPA for normally distributed variables. Results: Participants were: female, 59.2%; age, 59.3±8.4 years; body mass index, 25.5±3.4 kg/m2; glycosylated hemoglobin (HbA1c), 7.6%±1.2%; %BF, 30.4%±7.1%. They performed SB for 15.7±3.7 hr/day, LPA for 4.4±1.7 hr/day, and MVPA for 0.9±0.8 hr/day. The %BF was related to SBt and LPAt, but not to MVPA after adjustments for age, gender, and HbA1c. VPA was significantly higher in the Exe group than in the nonExe group, but SB, LPA, and moderate physical activity were not different. Predicted %BF was 89.494 to 0.105 (age), –13.047 (gender), –0.507 (HbA1c), –7.655 (LPAt) (F[4, 64]=62.929, P<0.001), with an R2 of 0.785 in multiple linear regression analysis. Conclusion: Reduced body fat in elderly diabetic patients might be associated with reduced inactivity and increased LPA.
등속성 운동훈련이 무릎 굴근력 및 신근력의 향상과 좌 우 근력차이에 미치는 영향
안근희,임미자 대한스포츠의학회 1996 대한스포츠의학회지 Vol.14 No.1
College females performed maximal two-legged isokinetic knee extensions and flexions 15∼25reps. 5∼6sets in single sessions third a week for 6 weeks at either 60deg/sec(Slow) or 240deg/sec(High) or both 60 and 240deg/sec(Combined) using a Cybex Ⅱ^+ isokinetic dynamometer with potentiality of knee follows; 1. Isokinetic strength training effect of knee extension and flexion muscle torque with specific angular velocity. 1) The peak torque at 60deg/sec significantly increased(p<0.05) in low speed group. 2) The peak torque at 180deg/sec significantly increased(p<0.05) in combined speed group. 3) The peak torque at 240deg/sec significantly increased(p<0.05) in combined speed group. 2. Isokinetic strength training effect of reciprocal ratio(H/Q ratio) with specific angular velocity. 1) Reciprocal ratio of left knee did not differ between pre and post. 2) Reciprocal ratio of right knee significantly increased(p<0.05) in low speed but did not differ significantly in comnbined speed group. 3. Isokinetic strength training effect of bilateral difference(R/L difference) with specific angular velocity. 1) Bilateral difference of quadriceps significantly improved(p<0.05) in high speed group and combined speed group in all the velocity. 2) Bilateral difference of hamstrings at 60deg/sec significantly improved(p<0.05) in low speed group and combined speed group and indicating the greater relative increase in combined speed group compared to other group. Examined the strength training effect inducing all the component, muscle power, reciprocal ratio, and bilateral difference, the combined training, mixed by low, mid, and high speed and concerned velocity specification in isokinetic strength training is more effective in improvement of bilateral difference and incremet of torque at 180deg/sec and 240deg/sec.