• Title/Summary/Keyword: Activity rhythm

Search Result 118, Processing Time 0.021 seconds

Changes in Serratus Anterior Muscle Activity According to Sling Angle in Participants with Shoulder Instability (어깨 불안정성환자에게 각도에 따른 슬링 운동이 앞톱니근의 근 활성도 변화)

  • Park, Chan-hee
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
    • /
    • v.27 no.1
    • /
    • pp.13-20
    • /
    • 2021
  • Background: The serratus anterior and upper trapezius muscles act synergistically to allow for an appropriate scapulothoracic rhythm. However, a decrease in serratus anterior activation causes the upper trapezius to become overactivated, resulting in dysfunction. This study compared serratus anterior and upper trapezius muscle activity according to sling angle and compared serratus anterior strength between healthy adults and patients with shoulder instability. Methods: Twenty participants (10 healthy adults and 10 patients with shoulder instability) were included in this study. The participants had their arms extended at sling angles of 30°, 60°, and 90° in reach forward with shoulder flexion using goniometer. Serratus anterior strength was measured three times while the participants were supine. The outcome measures were surface electromyography amplitude of the upper trapezius and serratus anterior and serratus anterior strength. Results: The Wilcoxon signed-rank test indicated that the upper trapezius was significantly different between healthy group and shoulder instability group at a sling angle of 60°, and both the upper trapezius and serratus anterior exhibited significant differences at 90°. Moreover, a significant difference was noted in the muscle strength of the serratus anterior. Conclusion: Our results provide novel and promising clinical evidence that patients with shoulder instability have decreased serratus anterior activation and upper trapezius overactivation, resulting in muscle imbalance. In addition, there was a significant difference between the healthy group and shoulder instability group in the serratus anterior muscle strength

Spatial Information Processing between Hippocampus and Prefrontal cortex: a Hypothesis Based on Anatomy and Physiology

  • Jung, Min-Whan
    • Animal cells and systems
    • /
    • v.2 no.1
    • /
    • pp.65-69
    • /
    • 1998
  • The hippocampus and prefrontal cortex are regarded as the highest-order association cortices. The hippocampus has been proposed to store "cognitive maps" of external environments, and the prefrontal cortex is known to be involved in the planning of behavior, among other functions. Considering the prominent functional roles played by these structures, it is not surprising to find direct monosynaptic projections from the hippocampus to the prefrontal cortex. Rhythmic stimulation of this projection patterned after the hippocampal EEG theta rhythm induced stable long-term potentiation of field potentials in the prefrontal cortex. Comparison of behavioral correlates of hippocampal and prefrontal cortical neurons during an a-arm radial maze, working memory task shows a striking contrast. Hippocampal neurons exhibit clear place-specific firing patterns, whereas prefrontal cortical neurons do not show spatial selectivity, but are correlated to different stages of the behavioral task. These data lead to the hypothesis that the role of hippocampal projection to the prefrontal cortex is not to impose spatial representations upon prefrontal activity, but to provide a mechanism for learning the spatial context in which particular behaviors are appropriate.propriate.

  • PDF

A Study on Experience of Health Behaviors of the Menopausal Women (폐경기 여성의 건강행위 경험 연구)

  • Park, Sun Young
    • Korean Journal of Adult Nursing
    • /
    • v.19 no.3
    • /
    • pp.483-494
    • /
    • 2007
  • Purpose: The objective of the study is to describe the experience of health care activities of the menopausal women through phenomenological methodology. Methods: Seven menopausal women participated in the study. Open in-depth interviews were used to collect data, and data were analyzed by the phenomenological methods suggested by Colaizzi. Results: The data were separated into 4 categories of uncomfortable life due to physical and emotional change, building consistency in daily life through regulating a routine rhythm, recovering normality, recovering stability, and 8 clusters of themes; securing regularity in daily life, securing availability in daily life, regulating through elimination and diminishment, regulating through supplementation, being patient and control self, expressing self, review the context and exchanging views, expending a world through one's faith. Conclusion: Participants accepted menopause not as a disease but as a natural course of life and realized that menopausal health problems could be naturally settled in general health care activities in daily life.

  • PDF

Study on The Rhythmical Rules of The Circulation of Yeong(營) and Wi(衛) during Sleep (시론영위주야절률성재수면활동중적작용(试论营卫昼夜节律性在睡眠活动中的作用))

  • Lu, Ying
    • Journal of Korean Medical classics
    • /
    • v.22 no.4
    • /
    • pp.47-50
    • /
    • 2009
  • This paper according to the sleep theory of Yeonggi(營氣) and Wigi(衛氣)'s circulation in "Naegyeong(內經)", explains that Yeonggi and Wigi's circulation is the internal basic for human's sleep-wake rhythm, and it's relationship with other sleep theories, such as mental activity sleep theory, soul sleep theory, Jangbu(臟腑) organs sleep theory etc. It can be seen that the circulation law of Yeonggi and Wigi for day and night is the key of sleep activities, and Yeonggi and Wigi's circulation disorder is the key of insomnia, so we should use coordination of Yeonggi and Wigi as basic method for treating insomnia, based on treatment after differentiation of syndromes.

  • PDF

Development of a Superconducting Quantum Interference Device System for Biomagnetic Measurements (생체자기계측을 위한 초전도 양자간섭소자 시스템 개발)

  • Lee, Y.H.;Kwon, H.C.;Kim, J.M.;Park, Y.K.;Park, J.C.
    • Proceedings of the KOSOMBE Conference
    • /
    • v.1996 no.11
    • /
    • pp.11-14
    • /
    • 1996
  • Biomagnetic measurements provide superior spatial and temporal resolutions compared with the present electric measurements. We developed a SQUID system for biomagnetic applications. A magnetic field from the spontaneous ${\tau}$-rhythm activity and an auditory evoked magnetic field have been measured. And a measurement of magnetocardiogram and its field mapping have been done.

  • PDF

A Case Study on the Imitation Ability of Young Children with Developmental Disabilities through Rhythmic Play Activity (그룹리듬연주활동에 따른 발달지체유아의 모방능력에 관한 사례연구)

  • Lee, A Ryeon
    • Journal of Music and Human Behavior
    • /
    • v.6 no.2
    • /
    • pp.25-41
    • /
    • 2009
  • The purpose of this case study is to examine how group rhythmic playing can help enhance imitation skills for 3 children with developmental disabilities aged between 30-50 months. The program was composed of social musical play, the therapist's imitating the way young children played musical instruments, and the young children's imitating the way the therapist played musical instruments. Every session was videotaped, and the researcher and two music therapists checked the videotaped sessions to ensure the reliability of findings. The case study demonstrated the following results. First, the three young children who participated in the playing of rhythmic musical instruments showed an increase in imitation behaviors. Second, the infants exhibited the greatest change from 1 beat imitation according to the degree of difficulty of group rhythm musical instrument demonstrated. Third, the most radical change in the infants' ability to imitate appeared in Sessions 3-7 where the therapist imitated the operation and a performance of the infant. In conclusion, the activity of playing rhythmic musical instruments in a group generated improvement in the imitation ability of young children with developmental disabilities.

  • PDF

Barefoot walking improves cognitive ability in adolescents

  • Taehun Kim;Dae Yun Seo;Jun Hyun Bae; Jin Han
    • The Korean Journal of Physiology and Pharmacology
    • /
    • v.28 no.4
    • /
    • pp.295-302
    • /
    • 2024
  • Walking can have a positive impact on cognitive function in adolescents. This study aimed to compare the effects of walking with sneakers and barefoot on cognitive ability in adolescents. Fifty-nine adolescent male students were included in the study and assigned to the control (n = 20), sneaker (n = 19), and barefoot (n = 20) groups. The barefoot and sneakers group performed a 40-min walking exercise four times a week for 12 weeks during the morning physical activity time, while the control group performed self-study. Electroencephalogram (EEG) and brain activity variables were measured before and after the exercise program. The results showed that after 12 weeks, the barefoot group had a significant decrease in Gamma and H-beta waves and a significant increase in sensorimotor rhythm (SMR) and Alpha waves. Conversely, the control group showed a significant decrease in SMR waves and increase in Theta waves. The sneaker group showed a significant decrease in SMR waves alone. In an eyes-open resting state, the barefoot group showed a significant increase in H-beta, M-beta, SMR, and Alpha waves. The barefoot group also had a significant increase in cognitive speed and concentration and a significant decrease in brain stress. Taken together, barefoot walking can effectively enhance cognitive ability in adolescents, as demonstrated by the significant variation in EEG activity. This research highlights the potential benefits of barefoot walking as a simple and effective form of exercise for enhancing cognitive function in adolescents.

The Influence of Stress Response, Physical Activity, and Sleep Hygiene on Sleep Quality of Shift Work Nurses (교대근무 간호사의 스트레스 반응, 신체활동, 수면위생이 수면의 질에 미치는 영향)

  • Jeong, Ji-Yeong;Gu, Mee-Ock
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.17 no.6
    • /
    • pp.546-559
    • /
    • 2016
  • This study was conducted to analyze the relationship between sleep quality, stress response, physical activity and sleep hygiene in shift work nurses and identify factors influencing sleep quality. The participants were 168 shift nurses from university hospitals and general hospitals located in C city, Gyeongnam. Data were collected from March 25 to 31, 2016. The study instrument use to the Pittsburgh Sleep Quality Index, Stress Response Inventory, Korean version of the International Physical Activity Questionnaire Short Form and Sleep Hygiene Scale. Date were analyzed by frequency, t-test, ANOVA, Pearson's correlation and hierarchical multiple regression using SPSS/win18.0. The sleep quality index was 7.35 (range 0-21), stress response was 2.20 (range 1-5), physical activity was 3986MET-min/week, and sleep hygiene was 2.73 (range 1-6 points). There were significant differences in sleep quality according to shift work experience, health status and circadian rhythm type. Factors influencing sleep quality included shift work experience, sleep hygiene, stress response and physical activity, which together explained 40% of the total variance of sleep quality. Therefore, it is recommended that sleep hygiene education be implemented as a strategy to reduce stress response, and that shift work nurses engage in a moderate level of physical activity to improve their sleep quality.

A Case of study on Children's Responses to Audie Music Activity ('오디' 음악활동에서 나타난 유아의 반응에 관한 사례 연구)

  • Yun, Eun Mi;No, Ju-Hui
    • Journal of Music and Human Behavior
    • /
    • v.4 no.2
    • /
    • pp.41-65
    • /
    • 2007
  • This study examines children's responses on Audie music activity based on Gordon's Music Learning Method. Subjects of study were 3 five year old children(2 boys, 1 girl) in kindergarten. Data collection drew from participatory observation, researcher journal, the classroom teacher interview. Where more specific data were necessary, video and digital camera recorded. The data were described, analyzed, and interpreted. The main findings in this study are as follows : The children who participated in Audie music activity showed desirable changes in many ways. Their music listening attitude was the one that changed most remarkably. At the beginning activity application, the children were not naturally and could not listen attentively while researcher was singing song without words. Gradually children could listen attentively to the researcher's singing without words. Through the Audie music activity, the children began to think carefully the tone and rhythm of music and to express themselves freely and creatively. At the beginning activity application, the children who showed negative responses and blocked up activity became gradually able to show positive aptitude and to amuse. Also the children who showed passive attitude and no responses became gradually able to react spontaneously.

  • PDF

Analysis of Horticultural Activities in the Teacher's Guidebooks of Nuri Curriculum for 5-Year-Olds

  • Choi, Byung Jin;Jeong, Yeo Jin;Kim, Mi Jin;Yun, Suk Young
    • Journal of People, Plants, and Environment
    • /
    • v.23 no.2
    • /
    • pp.211-220
    • /
    • 2020
  • The purpose of this study was to analyze the frequency and contents of horticultural activities in 696 individual activities listed in 11 teacher's guidebooks of Nuri Curriculum for 5-year-olds, and to find out the perceptions of horticultural activities in the formal curriculum. The target horticultural activities that were selected were those using natural objects like potted plants, water, wind, soil, stones, etc. as the topic or subject of activities, and those with different topics but are mentioning plants or natural objects as an example at least twice. The 150 selected horticultural activities were classified by life-based theme, activity type, activity domain, and medium. As a result of examining horticultural activities by life-based theme, there were 150 horticultural activities (21.55%): 40 in Spring, Summer, Autumn and Winter (5.75%), 34 in Animals, Plants, and Nature (4.89%), 22 in Environment and Life (3.16%), 19 in Our Country (2.73%), and nine in Our Neighborhood (1.29%), nine in Various Countries of the World (1.29%), four in Health and Safety (0.57%), four in Living tools (0.57%), four in Transportation (0.57%), three in Kindergarten and Friends (0.43%), two in Me and My Family (0.29%; χ2=130.427, p < .001). As a result of examining horticultural activities by activity type, there were 61 free choice activities (40.67%), 80 large and small group activities (53.33%), and nine outdoor play activities (6.00%), indicating that outdoor play was the fewest activity type (χ2=54.040, p < .001). The results of analyzing horticultural activities by activity domain showed that there were 25 in conversation (16.67%), 19 in science (12.50%), 14 in art (9.33%), 14 in cooking (9.33%), 10 in fairy tales (6.00%), nine in music (6.00%), eight in language (5.33%), eight in number operation (5.33%), eight in others (5.33%), six in children's plays (4.0%), six in games (4.0%), four in body and movement (2.67%), three in stacking (2.00%), three in roles (2.00%), three in rhythm (2.00%), two in children's poems (1.33%), two in field experience (1.33%) and one in outside play (0.67%; χ2=87.600, p < .001). As a result of examining the mediums used in the horticultural activities, 46 activities (30.67%) directly used plants as the mediums, 11 activities (7.33%) used soil such as stones, gravel, and earth as the mediums instead of plants, four activities (2.67%) used dry plants such as branches and dry leaves as the mediums, and 89 activities (59.33%) used videos, photos of plants, and pictures of plants as the mediums (χ2=121.307, p < .001).