• Journal of Sport and Applied Science
• /
• 제8권2호
• /
• pp.13-18
• /
• 2024

Purpose: The purpose of this study is to determine the effects of a 6-week weight training and complex training program on the Y-balance test (YBT) in high school soccer players. Research design, data, and methodology: This study included 26 high school soccer players from City S. Subjects were divided into a weight training group (WTG: n=13) and a complex training group (CTG: n=13) based on their willingness to participate without medical problems. The YBT measured anterior (AT), posteromedial (PM), posterolateral (PL), and composite scores (CS), and was measured twice: before the start and after the end of training. The data were analyzed using the SPSS 25.0 statistical program to compare pre- and post-training using paired-t tests, between training groups using independent-t tests, and left-right comparisons using independent-t tests. Results: Training resulted in a significant pre- to post-training change in PL in the left foot WTG group (p<.05), with no significant change in the other measures. There were no significant differences between training groups and between left and right sides. Conclusion: To improve YBT in high school soccer players, a program to improve ankle and hip mobility and strength should be added along with improving large muscle strength through weights and comflex training.

• 대한한의학회지
• /
• 제35권1호
• /
• pp.50-57
• /
• 2014

Objectives: The purpose of this study was to examine whether Temporomandibular Joint Balance Appliance-Golf (TBA-G) can improve postural control ability of healthy adults. Methods: Twenty participants (10 male, 10 female) aged 20 to 39 years were involved. Postural control ability of all participants was assessed before and after applying TBA-G with Balance $Master^{(R)}$ system. Modified clinical test sensory interaction on balance (mCTSIB), unilateral stance, weight bearing and rhythmic weight shift were used to evaluate postural control ability. Results: After applying TBA-G, mCTSIB on a firm plate with eyes open increased from 0.2 to 0.23 (p<0.05) but directional control was improved in slow and moderate velocity of front/back rhythmic weight shift test (P<0.05). In two cases with postural imbalance, most of the postural control measures improved after applying TBA-G. Conclusions: The results suggest that TBA-G could improve balance control ability. A larger controlled trial is needed to determine more accurately the effect of TBA-G on balance control ability.

• 한국식품영양과학회지
• /
• 제26권3호
• /
• pp.521-527
• /
• 1997

This study was aimed to investigate the nutriational status of Korean female college students who are attending school at a longdistance. Physique calssification by anthropomethic indexes, Body mass index(BMI) & Brocas' index and the body fat distrubition were investigated. The energy balance was also examined comparing caloric intake with caloric expenditure. The result of this study are followings; (1) Average height and weight were 158±17.8 cm, 51.7±7.8 kg. This results were not quite different from '84 Korean Adult Standard of 159.5cm, 52.5kg. (2) By Broca's index, 25.89% of subjects was underweight 67.0% was normal weight and 7.06 was overweight. By BMI, 40% of subjects was underweight, 58.8% was normal weight and 1.2% was overweight. (3) According to % fat measured. By BIA, 7% in subjects was underweight, 64.2% was normal weight, 22% was overweight and 6.1% was obesity. This result differed from BMI's result. It may be measurement error due to the difficulty of removing metal sticking to underwear and tooth correction. (4) The intakes of the nutrients except protein, P, vitamin B₁ complexes, were lower than the intakes indicated by Korean Recommended Allowances. 95) Average caloric intake a day was 1545±394.4 kcal, which was much lower than the RDA. The caloric expenditure was much more than caloric intake, which showed negative energy balance in the subjects of this study.

• 한국소음진동공학회:학술대회논문집
• /
• 한국소음진동공학회 2007년도 추계학술대회논문집
• /
• pp.1231-1236
• /
• 2007

Balance Shaft Module is module parts that is installed to vehicles engine to reduce noise and vibration of vehicles engine. Balance Shaft Module's performance exerts important influence on performance of engine. Therefore, must be able to warrant quality and performance of Balance Shaft Module. Existing product found and revised error at continuous process of production, and estimated failure mode in Balance Shaft Module. Previous method hard to secure product that performance is excellent, and bring a lot of damages economically. Therefore, development of inspectin system for quality inspection of parts and performance test of assembly is essential in Balance Shaft Module. In this study, represented development process of automatic dynamic inspection system to test performance and detect breakdown of Balance Shaft Module that is producing in Dongbo.

• PNF and Movement
• /
• 제6권2호
• /
• pp.1-10
• /
• 2008

Purpose : The purpose of this study was to investigate the effect of aquatic exercise applied PNF patterns on body composition and balance performance in people who have had a stroke. Methods : Forteen candidates who have all experienced a stroke were participating in a community based rehabilitation program, have been included in this study. The program was conducted three times weekly, 1 hour per session, for 10 consecutive weeks. Subjects were tested with body composition and 5 items of Berg's balance test at pre-training and post-training. Total balance indexes in 3 conditions were measured by K.A.T. 3000. The aquatic exercise applied PNF patterns was consisted of PNF patterns and various aquatic activities. Results : After ten weekends of aquatic exercise training, there were not significant difference in body composition(p>.05) except of muscular weight of affected lower extremity(p<.05). But edema index increased more than pre-training (p<.05). Subjects showed significant difference in Berg's balance test results except of 2 items of Berg's balance test (p<.05). Total balance index score when subjects opened their eyes and didn't hold the handle was decreased less than pre-training(p<.05). Conclusion : The results of this study showed that intervention of this aquatic exercise program applied PNF patterns could increase edema index and muscular weight of affected lower extremity and improve the balance performance in people who have had a stroke.

• Bulletin of the Korean Chemical Society
• /
• 제34권6호
• /
• pp.1715-1721
• /
• 2013

Magnetic properties of magnetite ferrofluid are studied by measuring magnetic weights under different magnetic fields with a conventional electronic balance. Magnetite nanoparticles of 11 nm diameter are synthesized to make the ferrofluid. Magnetization calculated from the magnetic weight reveals the hysteresis and deviates from the Langevin function at high magnetic fields. Magnetic weight shifts instantaneously with magnetic field change by Neel and Brown mechanism. When high magnetic field is applied to the sample, slower change of magnetic weight is accompanied with the instantaneous shift via agglomeration of nanoparticles. The slow change of the magnetic weight shows the stretched exponential kinetics. The temporal change of the magnetic weight and the magnetization of the ferrofluid at high magnetic fields suggest that the superparamagnetic sample turns into superspin glass by strong magnetic interparticle interactions.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2000년도 추계종합학술대회 논문집(3)
• /
• pp.41-44
• /
• 2000

In this paper, we propose an Intelligent Monitoring Network System(IMNS) for The truck scale balance system. Truck scale balance system consis of three parts； Load cell part, Indicator part, and Junction box part. IMNS is attached to Junction box in truck scale balance system. Even if Load cell have been some problems, a truck scale balance system still has been run to determine, the values involved error. therefore prosed system is has concentrated on Load cell part. Other Parts have been changed a portion of circuit for monitoring system.

• Journal of Nutrition and Health
• /
• 제22권4호
• /
• pp.223-236
• /
• 1989

To evaluate the differences of the levels and sources of protein intake human protein metabolism, an 26-day metabolic balance study was conducted in 10 healthy Korean adult females. In the pre-study, the subjects recorded their own diets for 3 days. The metabolic balance study consisted of 6-day adaptation period, 10-day moderate protein period(60-65g/d) and 10-day high protein period(90-95g/d). During the moderate and high protein period, 5 subjects were fed the higher animal protein meals and the other 5 subjects were fed the high plant protein meals. Body weight, nitrogen balance and blood chemistries were monitored through out the study. The urine volume were sighificantly larger in the animal protein group and, the dietary fiber and fecal weights were significantly heavier in the plant protein diet group. But no statistically significant differences were found between the two dietary groups in apparent nitrogen digestability, urinary nitrogen excretion and nitrogen balance. Body weight, serum protein, albumin and HDL-cholesterol levels were not changed, but serum total cholesterol level in the animal protein diet group was elevated significantly from 143.8mg/dl on moderate potein diet to 173.0mg/dl on high proetin diet. In conclusion, from the observation of this short-term N balance study, plant diet on the adequate level of calorie and protein intake had almost the same effect of animal protein diet for protein maintenace in adults.

• Nutritional Sciences
• /
• 제1권1호
• /
• pp.16-21
• /
• 1998

This study was conducted to determine the interaction of dietary wheat bran and dietary calcium levels n)n calcium utilization in post-breeding female rats. It was designed to compare the effects of four different levels (2.5, 5, 10 and 20%) of wheat bran and two different levels (0.5 and 1%) of calcium on bone and calcium balance in post-breeding female rats over a ten-week period. The effects of diet on animal weight gain, serum calcium, femur weight, femur calcium concentration, bone mass and calcium balance were determined and statistically analyzed. The addition of 20% wheat bran significantly (p$\leq$0.05) decreased the weight gain of rats. Serum calcium and bone calcium contents were more affected by dietary calcium level than by dietary wheat bran level. There was no significant difference in fat-free solid, ash, percentage of ash to fat-free solid and percentage of calcium to ash among groups. Groups fed the 1% calcium diet had a higher percentage of calcium to fat-free solid. All rats were in positive calcium balance during the three-4ay experimental period. The average calcium balance of the rats fed 1% calcium diet ranged from 25.34 to 53.90mg and the average calcium balance of the rats fed the 0.5% calcium diet ranged from 26.71 to 32.90mg. In rats receiving 2.5% wheat bran, the difference in calcium balance between the group fed the 1% calcium diet and the group fed the 0.5% calcium diet was only 1.37mg, which was not significantly (p$\leq$0.05) different. In rats receiving 20% wheat bran, the difference in calcium balance between the group fed the 1% calcium diet and the group fed the 0.5% calcium diet was 19.S7mg, which was significantly (p$\leq$0.05) different. The addition of wheat bran caused an increase in the calcium balance of the rats adminslesed the 1% calcium diet. On the other hand, the addition of wheat bran had no effect on the calcium balance of the rats adminislesed the 0.5% calcium diet. In conclusion, calcium utilization of rats wire more positively affected by the interaction of both dietary wheat bran levels and dietary calcium levels than either dietary wheat bran levels or dietary calcium levels alone. Moderate wheat bran consumption did not interfere with the calcium metabolism of rats when calcium intake was high enough.

• 대한물리치료과학회지
• /
• 제18권1호
• /
• pp.79-84
• /
• 2011

Background: The purpose of this study was to investigate differences in balancing ability and weight bearing between paretic and non-paretic. Methods: Subjects of the study were consisted of 30 acute hemiplegia patients(paretic 15, non-paretic 15) who were receiving rehabilitation therapy in hospital. Weight shifting was quantitatively evaluated to determine the ability of patients to and during conscious weight shifting on the Gaitview. Independent t-test was utilized to detect the mean difference between the groups. Results: 15 patients with stroke were able to shift more weight onto the paretic leg. And pressure ratio of right hemiplegia was significantly difference on the nonparetic leg, pressure ratio of left hemiplegia was significantly difference onto the paretic leg. Conclusions: Patients with left hemiplegia who was cortical lesions in the right hemisphere were able to shift more body weight onto their paretic leg. These patients should be encouraged to practice shifting their weight towards their non-paretic leg to improve their balance.