• 대한정형도수물리치료학회지
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• 제19권2호
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• pp.11-18
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• 2013

Background: The objective of this study was to compare the efficacies of thoracic self-mobilization and strengthening exercise in young adults with thoracic hyperkyphosis. Methods: The subjects were 30 young adults (11 males, 19 females) with thoracic hyperkyphosis. They were randomly assigned to one of three groups: thoracic self-mobilization, thoracic strengthening exercise, and control group. The thoracic self-mobilization group performed active dynamic exercises, which included thoracic extension and rotation in supine and standing positions. The strengthening exercise group performed resistance exercises involving the back extensor muscle, with an elastic band and dumbbells. The outcome measures were the thoracic kyphosis angle and forward head posture (craniovertebral angle [CVA] and cranial rotation angle [CRA]). Results: Compared with the baseline values, the thoracic kyphosis angle had decreased while the CVA had increased in both training groups (p<.05), but the CRA was significantly decreased in only the strengthening exercise group. Thoracic self mobilization reduced kyphosis and improved CVA, while thoracic strengthening exercise reduced kyphosis and improved CVA and CRA. Conclusion: This study suggests a promising exercise intervention that can improve posture in young adults with thoracic hyperkyphosis.

• Journal of Oral Medicine and Pain
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• 제22권1호
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• pp.81-94
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• 1997

The Purpose of this study were to examine the epidemiology of snoring, its associated factors and anatomic features on cephalogram according to the frequency of snoring in young adults. Epidemiological survey using questionaire was made to the 438 students (320 male, 118 female) aged 19 - 28 years, and cephalometric study of anatomic features on 14 habitual snorers, 31 occasional snorers and 30 non-snorers among men was done. The obtained results were as follows : 1. The prevalence snoring was 11.4% in the young adults, 15.0% in male and 1.7% female. 2. Of the young adults, 3.7% were habitual snorers and 7.8% were occasional snorers. 3. Smoking and drinking increased the frequency of snoring(p < 0.01), but didn't affec the differences in the frequency between habitual and occasional snoring. 4. No significant correlation was made between the frequency of snoring and the factors such as overweight, nasal disease and hypertension. 5. In the cephalometric comparison between snorers and non-snorers, snorers had inferiorly positioned hyoid bone(p < 0.05), longer soft palate(p < 0.01), steeper soft palate(p < 0.05) and narrower nasopharyngeal(p < 0.05) and oropharyngeal(p < 0.001) airway. 6. In the cephalometric comparison between habitual snorers and occasional snorers, habitual snorers had narrow nasopharyngeal airway(p < 0.05).

• International Journal of Knowledge Content Development & Technology
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• 제11권2호
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• pp.77-105
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• 2021

In order to establish a digital-based use environment for the provision of new information services suitable for the 5G era, it is necessary to discuss the direction of service provision by the National Library of Children and Young Adults in the 5G era. Based on utilization services in other fields, library services in the 5G era, including the development and provision of employee education and training services, ultra-high-definition and 360-degree realistic contents and education on library use, provision of multi-dimensional realistic media streaming broadcasting services, provision of telepresence education programs, activation of virtual communities, implementation of hologram performance halls/exhibit centers, and provision of unmanned book delivery services, environment monitoring, safety monitoring, and customized services, were proposed. In addition, based on 5G service, 5G technology, and library application direction, advancing into a producing and supporting base for ultra-realistic and immersive contents in the 5G era, strengthening online and mobile services in the non-contact era, and establishing a smart library environment were proposed as the service provision direction for the National Library of Children and Young Adults in the 5G era.

• Human Ecology Research
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• 제61권2호
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• pp.183-194
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• 2023

The purpose of this study was to examine how sociodemographic status, family-related influences, and perceived future economic prospects were associated with the possibility of getting married and having children in a sample of 607 single young Korean adults. The sample comprised unmarried men and women in their 20s and 30s taken from the 2021 Seoul Family Report survey, and descriptive statistical and multiple regression analyses were conducted on the data. The results indicated that age, non-traditional marriage/childbearing values, parents' marital relationship during childhood, and the prospect of having a stable job and owning a home were significantly related to the possibility of marriage. With regard to the possibility of having children, a significant relationship was found with age, level of education, non-traditional marriage/childbearing values, recognition of the importance of family, parents' marital relationship during childhood, and the prospect of having a stable job and owning a home. The study also examined the importance of policies that make the possibility of marriage and having children more appealing to young unmarried adults in Korea by providing a positive outlook for the economy, a sense of stability, and a supportive approach to the value of having a family.

• 대한음성학회지:말소리
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• 제65호
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• pp.37-49
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• 2008

The purposes of this experiment were to compare and analyze some voice parameters of the hearing impaired male adults and to suggest a basic data on the speech intervention for the hearing impaired. Voice analysis of four sustained vowels(/a/, /i/, /${\partial}$/, /u/, fundamental Sequency(F0), jitter percent, shimmer percent, and Noise to Harmonic Ratio(NHR) was conducted for the deaf young male adults using a sign laguage(N=5, aged 16-20) and the normal hearing young male adults(N=10, aged 18-20) by using MDVP(Multi-Dimensional Voice Program) in CSL. F0, jitter, and shimmer in the deaf group were significantly higher than those in the normal hearing group. The average of F0 was 151 Hz, which was lower than the results of the previous studies, and there were no significant differences among the sustained vowels. In both groups, the values of the voice parameters were stable on the /a/ or /${\partial}$/, those closed to the standard scores.

• 한국전문물리치료학회지
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• 제15권3호
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• pp.1-7
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• 2008

Multi-sensory systems, including the visual, somatosensory, and vestibular ones, are involved in maintaining standing balance. The organization of these sensory systems is as important as the efficiency of each individual system in maintaining optimal balance. The purpose of the present experiment was to investigate the developmental changes in static standing balance and sensory organization under altered sensory conditions. This study involved 64 children (from 4 to 15 years of age) and 17 young adults. The children were divided into four age groups: 4~6, 7~9, 10~12, and 13~15 years. Static standing balance was assessed with the one-leg standing test under four different sensory conditions: the children stood on a firm surface with (1) eyes open or (2) closed, and they stood on a foam surface with eyes (3) open or (4) closed. In balancing ability, the age groups exhibited significant differences. The function of sensory organization for balance control was poorer for the children than for the young adults. The functional efficiency of the somatosensory system of the children aged 7~9 years was at the young adults' level, and the visual function of the children aged 10~12 years had also reached the young adults' level. However, the functional efficiency of the vestibular system of children was significantly lower than that of the young adults, even at the age of 15 years. This may indicate that sensory organization and standing balance are still developing after the age of 15 years.

• Preventive Nutrition and Food Science
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• 제20권3호
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• pp.198-203
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• 2015

The present study was conducted to assess the status of vitamin C among healthy young adults in relation to serum antioxidant parameters [glutathione (GSH), thiols, and total antioxidant capacity, (TAC)], and oxidative stress markers [malondialdehyde (MDA), and nitrites plus nitrates (NN)]. A prospective study included 200 young adults, and their dietary intake was assessed by using food diaries. Fasting plasma vitamin C, serum levels of GSH, thiols, TAC, MDA, and NN were measured using biochemical assays. It was observed that 38% of the enrolled subjects, n=76, had an adequate dietary intake of vitamin C (ADI group). Meanwhile, 62%, n=124, had a low dietary intake of vitamin C (LDI group) as compared to the recommended dietary allowances. The fasting plasma level of vitamin C was significantly higher in the ADI group as compared to the LDI group. Oxidative stress in the sera of the LDI group was evidenced by depletion of GSH, low thiols levels, impairment of TAC, an elevation of MDA, and increased NN. In the ADI group, positive correlations were found between plasma vitamin C and serum antioxidant parameters (GSH, thiols, and TAC). Meanwhile, the plasma vitamin C was negatively correlated with serum MDA and NN levels. This study reveals a significant increase of oxidative stress status and reduced antioxidant capacity in sera from healthy young adults with low intake of the dietary antioxidant, vitamin C.

• Physical Therapy Rehabilitation Science
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• 제10권2호
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• pp.161-166
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• 2021

Objective: The purpose of this study was to quantitatively evaluate the Wii Balance Board (WBB)-based jump performance for the elderly and to confirm the difference in jump performance according to age. Design: Cross-sectional study. Methods: 40 young adults (aged 22.5±2.2 years) and 33 elderly (aged 75.1±5.2 years) without orthopedics disease participated in this study. Standing on the WBB then, with the signal "start," jump vertically to the maximum height at which you can jump, land on the force plate after jump and keep it standing on both feet. All subjects were required to practice the jump sufficiently before starting the measurement, each measuring three times, and the mean values were used. A one-minute break was provided between each trial. Evaluators waited within 1meter for every test to prepare for fall. Results: The vertical ground reaction force of elderly and young adults when jumping using WBB showed a significant difference (p<0.05) and demonstrated discriminant validity. Between two groups, there were significant differences in overall jump time (p<0.05), maximum value (p<0.05), minimum value (p<0.05), center of pressure (COP) pathlength (p<0.05), and flight time p<0.05). Conclusions: This study found that performing the vertical jump, the elderly showed longer jump time, lower vertical ground reaction force, COP pathlength and shorter flight phase than healthy young adults using WBB and demonstrated that as a measurement tool, WBB discriminated vertical jump performance between elderly and young adults.

• 농업과학연구
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• 제39권2호
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• pp.189-194
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• 2012

It is well-known fact that woodworking activity could contribute in enhancing creativity, scientific problem-solving ability, spatial perception ability and prosocial behavior of children. However, there is little chance that children experience woodworking at home or in kindergarten. This study was conducted to know how much children and adults have done woodworking in there daily life and how they perceived children's woodworking activity. Woodworking activities for children (N=207, 5 and 6 year old kids) with adults (N=271, only fathers) were carried out in 10 kindergartens of Cheongju. Actually, the survey result shows that very few children and adults experienced woodworking in their daily life. 62.8% of children and 34.3% of adults surveyed responded that they had never done woodworking. However, the greater part of children and adults evaluated the woodworking activity positively. Over 95% of children surveyed responded that their woodworking activity was fun and they want to play woodworking again. Over 73% of adults surveyed responded that children's woodworking activity was safe, and over 99% of adults surveyed responded that they can recommend children's woodworking activity to others. In conclusion, the development of safe tools and programs for children's woodworking activity helps its spread and activation.

• 한국콘텐츠학회논문지
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• 제13권10호
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• pp.9-18
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• 2013

본 연구에서는 게임 콘텐츠를 적용한 시각 피드백 훈련 프로그램을 이용하여 정상 여성 고령자와 정상 20대 성인의 자세균형 조절의 효과를 분석 하였다. 실험은 힘판 기반의 자세균형 훈련 장치를 이용하여 20대 성인 23명과 60대 고령자 14명은 주 3일, 하루에 15분씩 총 4주의 자세균형 훈련을 받았다. 자세균형 훈련에 대한 평가는 Balance SD(Biodex, medicalscience Inc., USA)의 자세 안정성과 자세 한계성을 분석하였으며, 훈련 전, 중, 후의 각 시점에 대한 유효성을 검증하였다. 실험 결과, 젊은 성인과 고령자 모두 훈련 전, 후에 자세안정성과 자세한계성에 유의한 효과가 있었음을 확인하였다(p<0.05). 이는 자세 균형게임은 자세 균형과 관련된 전 후 좌 우 다양한 방향에서의 무게 이동 능력을 향상시켰음을 알 수 있었다. 게임 기반 시각적 피드백 훈련은 자세균형에 효과적으로 적용가능하며 개인과 다양한 연령층에 맞는 맞춤형 콘텐츠 개발이 필요할 것으로 사료된다.