• Journal of The Korean Society of Integrative Medicine
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• v.3 no.2
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• pp.73-78
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• 2015

Purpose: This study was conducted to investigate out the effects of power by body application of weight training that can increase vertical jump, standing long jump, and medicine ball throw that are important factors for power ability. Methods: Sixteen in normal adult were participated in this study. The subjects were divided into the upper limb weight training group(N=16), the lower limb weight training group(N=16) and they exercised during a four-week period of time, three times a week, 70 minutes each, and the each group did take part in any exercise program. To evaluate the changes in power were measured by using the vertical jump, standing long jump, and medicine ball throw. The data was analyzed with a SPSS 18.0 program. Results: The results showed that the vertical jump, standing long jump were significantly increased in the upper limb weight training group(p<.01) and medicine ball throw was significantly increased in the both group(p<.05). However, there were that showed not significantly differences in all power items between two groups after experiment(p>.05). Conclusion: It was concluded that the weight training were effective in enhancing the power ability. Also, can be considered effective the better lower limb weight training group than upper limb weight training group.

• Physical Therapy Korea
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• v.27 no.2
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• pp.155-161
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• 2020

Background: The consequences of falls are often debilitating, and prevention is important. In theory, the lower the center of mass (COM), the greater postural stability during standing, and a weight belt at the waist level may help to lower the COM and improve the standing balance. Objects: We examined how the limit of stability (LOS) was affected by the lowered center of mass with the weight belt. Methods: Twenty healthy individuals participated in the LOS test. After calculating each participant's COM, a weight belt was fastened ten centimeters below the COM. Trials were acquired with five weight belt conditions: 0%, 2%, 4%, 6%, and 8% of body weight. Outcome measures included reaction time, movement velocity, endpoint excursion, maximum excursion, and directional control in 4 cardinal moving directions. Results: None of our outcome variables were associated with a weight belt (p > 0.075), but all of them were associated with moving direction (p < 0.01). On average, movement velocity of the COM and maximum excursion were 31% and 18% greater, respectively, in mediolateral than anteroposterior direction (5.4°/s vs. 4.1°/s; 97.5% vs. 82.6%). Conclusion: Our results suggest that postural stability was not affected by the weight-induced lowered COM, informing the development and improvement of balance training strategies.

• Journal of Biosystems Engineering
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• v.40 no.4
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• pp.327-334
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• 2015

Purpose: A falling-type weight sorter equipped with a load cell was developed to sort lightweight dried persimmons. The performance of the sorter was also evaluated. Methods: The electronic weight sorter for dried persimmon comprises a feeder part, a weight-measurement part, an indicator part, a carrier cup, a discharging part, and a driving part. The weight setting and zero-point adjustment are performed digitally for the convenience of users. For the experimental trials, 228 rubber-clay specimens (representative of dried persimmons) in the weight range of 24.73~99.56 g were manufactured for use in experiments to evaluate the performance of the sorter. Results: The average error of the weight measurements from three experimental trials was 1.655%, with a bias of -0.492 g, a root-mean-square error (RMSE) of ${\pm}0.808g$, and a coefficient of determination ($R^2$ ) of 0.997. Conclusions: The load-cell-based electronic dried-persimmon weight sorter developed in this study facilitates effective, precise, and convenient sorting of dried persimmons.

• The Journal of Korean Obstetrics and Gynecology
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• v.23 no.4
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• pp.95-108
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• 2010

Purpose: This study was to investigate the correlation among body weight, body composition, delivery method, parity, weight gain during pregnancy and obesity before pregnancy of patients who received postpartum care in one oriental medicine hospital. Mothods: From September 1, 2009 to August 31, 2008, we included 34 postpartum patients who had body composition analysis when admission and discharge among 47 postpartum patients who were hospitalized and received postpartum care in $\bigcirc\bigcirc$ University $\bigcirc\bigcirc$ Hospital. We used SPSS 14.0 for window to test for statistical significance. Results: After postpartum care, body weight and BMI of mothers was significantly decreased and the weight loss was almost body water. Mothers who had cesarean section had relatively severe edema and mothers who had been overweight before pregnancy had high BMI, body fat and abdominal fat. After delivery, body fat percentage was increased highly and body weight retention lasted long in mothers who had gained over 12.5kg during pregnancy. Conclusion: Living habits including diet has a significant effect on weight change of mothers during early puerperium, therefore it is required to teach mothers about breast-feeding, diet, and exercise to help their weight return to normal.

• Journal of Korean Biological Nursing Science
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• v.13 no.2
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• pp.179-184
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• 2011

Purpose: The purpose of this study was to examine the effect of short-term undernutrition on muscle weight and Type I and II fiber cross-sectional area of hindlimb muscles in undernourished rats. Methods: Adult male Sprague-Dawley rats were randomly assigned to one of two groups: The undernourished (UN) group (n=9) and the control (C) group (n=9). A control group was allowed to have water and pellet ad libitum for 5 days. Undernutrition was induced by providing 32% of total intake of the control group for 5 days. Body weight of two groups and food intake of the control group were measured every day. At 6 days all rats were anesthetized and soleus, plantaris and gastrocnemius muscles, and liver were dissected. Body weight, food intake, muscle weight, liver weight and cross-sectional area were determined. Results: The UN group at 6 days after undernutrition showed significant decreases, as compared to the control group in body weight, liver weight, muscle weight of soleus, plantaris, and gastrocnemius, and Type I fiber cross-sectional area of soleus and gastrocnemius muscles and Type II fiber cross-sectional area of plantaris and gastrocnemius muscles. Conclusion: Hindlimb muscle atrophy occurs from the short-term undernutrition.

• Journal of the Korean Society of Food Culture
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• v.16 no.2
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• pp.89-98
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• 2001

The purpose of this study was to investigate the effects of body weight control program for obese children. The program included nutrition education, exercise and behavioral therapy for 20 weekly sessions. The results from this study were as follows. The average age of the subjects was 11.3 years, mean height and weight were 146.12cm and 59.42kg respectively. After weight control preogram, Rohrer index(Rl) was significantly decreased from 186.78 to 182.72(p<0.001). There were not significant differences in body fat percent(%) and fat weight(kg) but it showed decreased pattern. In the change of body circumferences, chest circumference was significantly increased(p<0.01) and mid-arm circumference was significantly decreased(p<0.001) after weight control program. Triglyceride(TG) level in serum was significantly decreased from 113.79 to 80.36(p<0.01) and total cholesterol and LDL-cholesterol level showed declind pattern. The food habits of obese children significantly improved(p<0.001) after weight control prgram. And there were desirable changes of food attitude, excercise and life habits. These results suggest that weight control program including nutrition education, exercise and behavioral therapy may be effective for helping obese children.

• Journal of Electrical Engineering and Technology
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• v.9 no.6
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• pp.2154-2161
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• 2014

Growth analysis and selection of sea cucumbers (Stichopus japonicas) is typically performed through length or weight measurements. However, because sea cucumbers continuously change shape depending on the external environment, weight measurement has been the preferred approach. Weight measurements require extensive time and labor, moreover it is often difficult to accurately weigh sea cucumbers because of their wet surface. The present study measured sea cucumber features, including the body length, width, and thickness, by using a vision system and regression analysis to generate $R^2$ values that were used to develop a weight estimation algorithm. The $R^2$ value between the actual volume and weight of the sea cucumbers was 0.999, which was relatively high. Evaluation of the performance of this algorithm using cross-validation showed that the root mean square error and worst-case prediction error were 1.434 g and ${\pm}5.879g$, respectively. In addition, the present study confirmed that the proposed weight estimation algorithm and single slide rail device for weight measurement can measure weights at approximately 4,500 sea cucumbers per hour.

• IE interfaces
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• v.24 no.3
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• pp.220-230
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• 2011

The multi-reservoir operation problem for efficient utilization of water resources involves conflicting objectives, and the problem can be solved by varying weight coefficient on objective functions. Accordingly, decision makers need to choose appropriate weight coefficients balancing the trade-offs among multiple objectives. Although the appropriateness of the weight coefficients may depend on the total amount of water inflow, reservoir operating policy may not be changed to a certain degree for different hydrological conditions on inflow. Therefore, we propose to use fuzzy Data Envelopment Analysis (DEA) to rank the weight coefficients in consideration of the inflow variation. In this approach, we generate a set of Paretooptimal solutions by applying different weight coefficients on Coordinated Multi-reservoir Operating Model. Then, we rank the Pareto-optimal solutions or the corresponding weight coefficients by using Fuzzy DEA model. With the proposed approach, we can suggest the best weight coefficients that can produce the appropriate Pareto-optimal solution considering the uncertainty of inflow, whereas the general DEA model cannot pinpoint the best weight coefficients.

• The Journal of Pediatrics of Korean Medicine
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• v.21 no.2
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• pp.51-67
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• 2007

Objectives The study was designed to find out the relationships between short stature and low weight among children and teenagers. Methods This research was performed in 21 children and teenagers from August 2006 to June 2007. We measured height, weight, body mass index, obesity rare, bone age, and HTMA. Moreover, we analyzed correlation with height, weight, mineral concentrations and ratios obtained from HTMA. Results There were significant correlations between HTMA and short stature and low weight. 1. Most subjects(76%) had slow metabolic types. 2. Ca, Mg, Zn, Ca/P, and Cr had significant differences between high bone age group and high chronological age group. 3. Fe/Cu had significant differences between a group that recent height is more smaller than inherited height and a group that recent height is more taller than inherited height. 4. Ca, Mg, Ca/P had significant differences between a low weight group and a normal weight group classified by obesity rate. Conclusions Children and teenagers with short stature and low weight have specific mineral characters.

• Women's Health Nursing
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• v.19 no.1
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• pp.57-65
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• 2013

Purpose: This study identified the effects of body weight control behaviors on bone mineral density (BMD) in Korean women aged 20 to 39 years. Methods: A secondary analysis of the 5th Korean National Health and Nutrition Examination Survey was conducted. Asian-Pacific criteria of BMI (Body Mass Index) and BMD were calculated for 1,026 women selected. The effects of body weight control behaviors were assessed using binary multiple logistic regression analysis while controlling for BMI. Results: Osteopenia and osteoporosis rates were 32.8% and 2.0%, respectively. About 69% of women performed weight control behaviors, and a combination of diet/exercise (22.7%) and drug added methods (10.9%) for weight control. Women who performed both diet control and exercise had a lower possibility to have abnormal BMD than those who did not try weight control (OR=0.67, CI=0.45~0.98, p=.039). Further weight control behaviors did not influence abnormal BMD. Conclusion: Body weight control should include proper diet and exercise in accordance with each woman's BMI level.