• 대한의용생체공학회:의공학회지
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• 제23권5호
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• pp.413-418
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• 2002

본 연구에서는 변기에 앉아 있을 때 체성분을 효과적으로 측정할 수 있는 체임피던스 측정기(Bioelectrical Impedance Analyzer, BIA)를 개발하고, 이 시스템으로 정확한 체성분 값을 구할 수 있는 방정식을 도출하였다. 이를 위해 설계한 하드웨어고 건강한 한국인 남·여 181명의 체임피던스 값을 변기에 적합한 전극 부착 위치(손목, 허벅지)에서 획득였다. 같은 피험자를 대상으로 기존의 한국인에게 적용시 정확도의 문제를 내포하는 수중체중법의 Siri 방정식을 modified-Siri 방정식으로 적용함으로서 한국인의 제지방량 표준값을 산출하였다. 이 표준값을 기준으로 임피던스 지수, 체중, 성별로 한국인의 제지방을 예측하는 추정식을 얻었다. 제지방량의 추정값과 표준값 사이의 상관계수(r)는 0.977로 높은 관련성을 나타냈으며, SEE(Standard Error of Estimation)은 2.47kg으로 낮은 오차를 나타냈다(p<0.05). 이는 기존의 전극 부착위치인 손목과 발목을 같은 피험자에 적용하여 체임피던스에 의한 제지방량 추정식을 세울 때, 추정값과 표준값 사이의 상관계수(r = 0.978) 및 SEE(2.43kg)와 큰 차이가 없는 것으로 나타났다. 또한. 이중교차검증(Double Cross Validation)을 통해 실험에 참가하지 않은 피검자에 대한 적용 가능성도 유효한 것으로 나타나 본 논문에서 설계한 체임피던스 분석기와 추정식은 한국인의 제지방량을 산출하는데 적합한 것으로 평가되었다.

• 한방비만학회지
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• 제2권1호
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• pp.73-82
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• 2002

Objectives: The purpose of this study is to investigate the effect of the aerobic exercise and weight training combined with VLCD(very low calorie diet) and chegameuyiin-tang(體減薏苡仁湯) on the change of the body composition during 15 days of hospitalization treatment. Methods: Twenty four female obese patients were observed. Exercise regimen was composed with aerobic exercise and weight training program, and the intensity of aerobic exercise were 50% HRmax(maximal heart rate) twice time a day and weight training were 50% 1RM(one repetition maximum) a day. All subjects diet regimen was VLCD of 600kcal/day. Results & Conclusions. 1. There was no significant difference between the aerobic exercise and the weight training groups in the change of body weight, fat mass, and percent body fat, waist-hip ratio, body mass index and resting metabolic rate. 2. In the comparison of the change rate of FFM(fat free mass), weight training group preserved FFM better than aerobic-exercise-only-group with no statistical significance.

• 한국노년학
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• 제32권3호
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• pp.703-714
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• 2012

고령기의 생활을 위협하는 비만 여성고령자를 대상으로 sarcopenia 동반에 따른 16주간의 운동중재가 신체조성 및 심폐체력에 미치는 변화를 알아보기 위한 실험이다. 비만 여성고령자를 sarcopenia 동반유무에 따라 sarcopenic obestiy group(SOG)과 non-sarcopenic obesity group(NOG)으로 나누어 16주간, 주 3회, 50-60분간 복합운동 실시 후 신체조성 및 심폐체력에 미치는 영향을 분석하여 다음과 같은 결론을 얻었다. 신체조성의 경우 시기와 그룹간 상호작용효과는 fat free mass(FFM)에서만 나타났으며, 운동 전 후의 변화에서는 SOG의 경우 % body fat은 감소하였고, FFM과 ASM에서는 차이가 없었다. NOG의 경우 %body fat은 감소하였으며, FFM과 ASM에서는 증가하였다. 심폐체력에서는 두 그룹 모두 $\dot{V}O2peak$가 증가하였다. 따라서, sarcopenic obesity 여성고령자가 non-sarcopenic obesity 여성고령자에 비해 근육량(FFM, ASM)에서 운동효과가 지연되는 것을 발견할 수 있었다.

• Nutritional Sciences
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• 제4권1호
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• pp.34-38
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• 2001

The purpose of this study was to compare the energy expenditure of normal-weight and overweight Korean middle-aged women (40-60 yr). Middle-aged oveweight ($BMI\;{\geq}\;25$, n= 20) and normal-weight women were ($BMI\;{\leq}\;23$, n = 20) were recruited in Seoul. Anthropometric measurements, body composition, energy intake, daily activity time, and energy costs of some daily activities were measured. Energy expenditure at rest and while reading the newspaper, washing dishes, mopping the floor, and walking on a treadmill at 1.0, 2.0, 3.5mph were measured by indirect calorimeter and total daily energy expenditure was estimated by summation of energy costs of different activities. The overweight group had significantly higher values of body weight, triceps skinfold thickness, thigh circumference, waist circumference, hip circumference, BMI, WTR, WHR, body surface area, percentage body fat, fat mass, fat free mass (FFM), and muscle mass compared to normal-weight group. The energy intakes of both groups were close to RDA and other nutrient intake status was also satisfactory. There were no significant differences in intakes of energy and nutrients between the two groups. Overweight subjects showed lower energy expenditure per kg body weight for reading the newspaper, washing dishes and mopping the floor, and walking on a treadmill at 2.0 and 3.5 mph, however, energy expenditure per kg FFM did not differ between the two groups. Daily energy expenditure for all activities was significantly higher in the overweight compared to the normal-weight group due to higher body weight. Both overweight and normal-weight groups showed negative energy balance between energy intake and energy expenditure, and there was no significant difference in energy balance between the two roups. Total daily energy expenditure correlated highly with FFM and body surface area. The result of present study does not offer an explanation on the energy imbalance and weight gain of overweight women.

• Clinical Nutrition Research
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• 제12권1호
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• pp.65-76
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• 2023

The present systematic review and meta-analysis were accomplished to understand the effects of tart cherry juice consumption on body composition and anthropometric measures. Five databases were searched using relevant keywords from inception to January 2022. All clinical trials investigating the effect of tart cherry juice consumption on body weight (BW), body mass index (BMI), waist circumference (WC), fat mass (FM), fat-free mass (FFM), and percentage body fat (PBF) were included. Out of 441 citations, 6 trials that enrolled 126 subjects were included. Tart cherry juice consumption significantly did not reduce BW (weighted mean difference [WMD], -0.4 kg; 95% confidence interval [CI], -3.25 to 2.46; p = 0.789; GRADE = low), BMI (WMD, -0.07 kg/m²; 95% CI, -0.89 to 0.74; p = 0.857; GRADE = low), FM (WMD, 0.21 kg; 95% CI, -1.83 to 2.25; p = 0.837; GRADE = low), FFM (WMD, -0.12 kg; 95% CI, -2.47 to 2.27; p = 0.919; GRADE = low), WC (WMD, 1.69 cm; 95% CI, -1.88 to 5.27; p = 0.353; GRADE = low), and PBF (WMD, 0.18%; 95% CI, -1.81 to -2.17; p = 0.858; GRADE = low). Overall, these data suggest that tart cherry juice consumption has no significant effect on BW, BMI, FM, FFM, WC, and PBF.

• 대한물리치료과학회지
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• 제10권2호
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• pp.137-144
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• 2003

The purpose of this study was to investigate the difference of body composition of the elderly according to the age. This study consisted of elder male(n=48) and elder female(n=58). The average age of male elder and female elder was 73.81, 73.05 years. The data were analyzed with t-test, using SPSSWIN 10.1 program. Body composition was measured using Inbody 3.0(seoul, korea) of segmental multifrequency impedance analyzer technique. The result of this study were the following : 1. The difference of body composition according to the age 1) The MV(Muscle Volume)of male elder was significant difference among group(p<.05). The MV of female elder was very significant difference among group(p<.01). 2) The %FAT of male elder and female elder was no significant difference among group. 3) The FFM(Free Fat Mass)of male elder was significant difference among group(p<.05). The FFM of female elder was very significant difference among group(p<.01). 4) The TBW(Total Body Water)of male elder was significant difference among group(p<.05) The TBW of female elder was very significant difference among group(p<.01). 5) The WHR(Waist to Hip Ratio)of male elder was significant difference among group(p<.05). The WHR of female elder was very significant difference among group(p<.01).

• 대한물리치료과학회지
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• 제10권2호
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• pp.208-215
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• 2003

This study measured body composition and muscular strength, to examine their relationship, using the Bioelectrical Impedance (IB) method and biodex system3, respectively, in 44 healthy male(20) and female(24) university students. 1. Muscular strength of the upper extremities correlated significantly with fat-free mass(FFM) with $r=.604{\sim}.630$ and intracellular fluid(ICF) with $r=.672{\sim}.668$ in males and FFM with $r=.416{\sim}.552$, ICF with $r=.432{\sim}.564$ and extracellular fluid(ECF) with $r=.429{\sim}.463$ in females. 2. Muscular strength of the lower extremities correlated significantly with FFM with $r=.522{\sim}.785$, ICF with $r=.501{\sim}.739$ and ECF with $r=.498{\sim}.796$ in males and FFM with $r=.642{\sim}.660$, ICF with $r=.627{\sim}.671$ and ECF with $r=.572{\sim}.623$ in females. 3. Muscular strength of the trunk correlated with FFM with $r=.595$, ICF with $r=.627$, ECF with $r=.448$ in males, but did not correlate significantly with body composition in females. These results suggest that total body water(TBW) and ICF may be factors directly associated with muscular strength as well as physical fitness.

• 대한지역사회영양학회지
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• 제21권2호
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• pp.178-189
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• 2016

Objectives: The objectives of the study were to assess body composition, physical activity level (PAL), basal metabolic rate (BMR), and daily energy expenditure (DEE) and to examine associations between PAL and body composition, BMR, and DEE of elderly in Busan. Methods: A cross-sectional study was conducted among 226 elderly aged 65-93 years. Body composition was measured by Inbody 720. PAL was calculated by daily activity diary. BMR was calculated by Harris-Benedict (H-B) formula, Dietary Reference Intakes (DRI) formula, and Inbody 720 measurement. DEE was calculated by H-B formula, DRI formula, Inbody 720 measurement, and estimated energy requirements (EER) formula. Results: The mean fat free mass (FFM) in elderly men was significantly higher than that in elderly women (p<0.001). The mean percent body fat and fat mass (FM) in elderly women were significantly greater than those in elderly men (p<0.001, p<0.001). The mean PAL in elderly men (1.59) was significantly higher than that in elderly women (1.53) (p<0.001). The mean DEEs calculated by 3 methods except for H-B formula in elderly men were higher than EER for elderly men (2000kcal). The mean DEEs calculated by 4 different methods in elderly women were higher than EER for elderly women (1600kcal). Age showed significantly negative correlations with height (p<0.001, p<0.001), FFM (p<0.001, p<0.001), BMRs calculated by H-B formula (p<0.001, p<0.001), DRI formula (p<0.001, p<0.001) and Inbody 720 measurement (p<0.05 p<0.01) and DEEs calculated by H-B formula (p<0.001, p<0.001), DRI formula (p<0.001, p<0.001), Inbody 720 measurement (p<0.05, p<0.05), and EER formula (p<0.001, p<0.001) in elderly men and elderly women. PAL showed significantly positive correlations with FFM (p<0.05), BMR by Inbody 720 measurement (p<0.05) in elderly men and negative correlations with FM (p<0.05) in elderly women. Conclusions: Based on the results, PAL was associated with greater FFM in elderly men and lesser FM in elderly women. Therefore, nutritional education to increase physical activity for health promotion in late life is needed in the elderly.

• 생명과학회지
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• 제18권6호
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• pp.865-870
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• 2008

운동과 식이요법을 병행한 체중감량 프로그램에 참여한 여성 비만인의 체지방량, 안정시대사량, 그리고 갑상선 호르몬 차이를 비교할 목적으로 실험한 결과, 체지방량, 체지방율, 체표면적이 유의하게 감소되었고, 안정시대사량 예측치와 실측치 모두 유의하게 감소되었지만, 갑상선 호르몬의 변화는 나타나지 않았다. 안정시대사량과 신체요인들과의 상관분석 결과, 제지방 체충이 가장 밀접한 관계를 보였으며, 안정시대사량과 갑상선 호르몬들과의 관계에서는 TSH와 가장 밀접한 관계를 나타내었다. 결론적으로 8주간 체중감량 프로그램 참여로 체지방은 효과적으로 감소되었으나, 갑상선 호르몬 차이는 없었고 체중감소에 비해 제지방이 유지됨으로써 안정시대사량의 감소는 최소화되어, 에너지 대사작용에 긍정적인 영향을 준 것으로 사료된다.

• Tuberculosis and Respiratory Diseases
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• 제52권4호
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• pp.346-354
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• 2002

연구배경: 만성폐쇄성질환은 호흡곤란과 신체활동능력저하가 특징이며, 이들 환자의 체중감소는 예후를 결정하는 중요한 인자로 알려져 있다. 이러한 사실은 체성분의 변화가 환자의 운동능력에 영향을 미칠 수 있는 요인으로 작용할수 있음을 의미한다. 저자들은 최대산소섭취량에 영향을 미치는 요소들을 분석하여, 체성분의 변화가 환자의 최대운동능력에 미치는 영향을 알아보았다. 대상 및 방법: 만성폐쇄성질환으로 입원한 83명(남자 63명, 여자 20명)을 대상으로 급성기 증상이 호전된 후 퇴원하기 직전 안정시 폐기능 및 체성분 분석, 그리고 운동부하심폐기능을 측정하여 최대산소섭취량에 영향을 미치는 요소를 분석하였다. 결 과: 만성폐쇄성질환자의 최대산소섭취량은 영양상태와 관계없이 감소하였으나, 영양결핍환자들의 최대산소섭취량 및 최대운동부하량, 그리고 최대산소맥압은 영양상태가 정상인 환자보다 훨씬 낮았다. 최대산소섭취량은 최대흡기압 (r=0.71), 최대호기압(r=0.68), 노력성 흡기폐활량(r=0.55), 그리고 폐확산능(r=0.53)과 상관관계가 있고(p<0.01), 체성분 가운데 제지방량(r=0.55), 체질량지수(r=0.47), 제지방지수(r=0.41)와 상관관계가 있었다(p<0.01). 최대산소섭취량과 상관관계가 있는 지표들을 단계적 회귀분석으로 확인한 결과 제지방량 (t=2.31, p<0.05), 노력성 흡입폐활량(t=3.22, p<0.01), 폐확산능(t=3.41, p<0.01)이 유의수준 5% 이내에서 통계적인 의미가 있었다. 이들 세 가지 지표만으로 회귀모델을 만들 경우 최대산소섭취량의 68.8%를 설명할 수 있었다($r^2=0.688$, p<0.05). 결 론: 만성폐쇄성폐질환자의 제지방량은 안정시 폐기능과 더불어 최대운동능력에 영향을 미치는 중요한 인자이며, 환자의 활동능력을 유지하기 위하여 근육량을 보존할 수 있는 치료적인 접근이 반드시 필요할 것으로 생각한다.