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플립-플롭(Flip-flops) 보행이 건강한 성인의 시-공간적 변수와 발목 관절 움직임에 미치는 영향
장예은(Ye-Eun Jang),김하경(Ha-Kyung Kim),김정은(Jung-Eun Kim),김예담(Ye-Dam Kim),유승연(Seung-Yeon Yu),박재영(Jae-Yeong Park),김동우(Dong-Woo Kim),오재섭(Jae-Seop Oh) 한국임상움직임치료학회 2022 한국임상움직임치료학회지 Vol.2 No.1
Background: The flip-flop, popular for its light design and convenience, has practical advantages, but is unstable compared to closed shoes. This feature of the flip-flop causes a change in walking patterns. In previous studies, there are many studies on the kinetic and kinematic characteristics of flip-flop walking; however, there are various conclusions on the effect of flip-flop walking on temporal and spatial parameters, and ankle motion change during flip-flop walking. Objectives: The purpose of this study was to investigate the effect of flip-flop walking on spatio-temporal variables and ankle motion compared to sneakers walking. Methods: Twenty-one healthy subjects were participated. Xsens-DOT was used to track body movements. Steplab was used to analyze, visualize, and quantify tracked data. Participants were instructed to walk naturally in sneakers that fit their feet, and 50 steps were measured, five steps later for adaptation. In the same way, the measurement was performed wearing flip flops. The paired t-test was used to investigate the difference between sneakers walking and flip-flop gait. Statistical significance levels were set to α = 0.05. Results: There was no statistically significant difference in walking speed and stride length in spatio- temporal parameter. However, compared to sneakers walking, the maximum toe distance during flip-flop walking decreased statistically significantly (p < 0.05). The ankle motion was significantly reduced in both toe off angle and heel contact angle during flip-flop walking (p < 0.05). Conclusions: Walking wearing flip-flops increases the risk of falls and reduces push off capacity. Therefore, people who are fatal to falls and vulnerable to fatigue should not walk wearing flip-flops.
귀국 대학생의 대학생활 적응에 영향을 미치는 심리적 요인에 대한 연구: 자기개념 명확성, 정서인식 명확성, 회복탄력성을 중심으로
장예은(Jang, Ye Eun),김향미(Kim, Hyang Mi),김혜정(Kim, Hye Jeong) 학습자중심교과교육학회 2019 학습자중심교과교육연구 Vol.19 No.16
본 연구의 목적은 해외에서 다문화를 경험하며 성장기를 보낸 귀국 대학생의 대학생활 적응에 영향을 주는 심리적 요인들을 탐색하는 것이다. 이를 위해 한국 대학에 재학하거나 휴학 중인 귀국 대학생 총 254명의 대학생활 적응에 영향을 끼치는 심리적인 요인들(자기개념 명확성, 정서인식 명확성, 회복탄력성)을 분석에 사용하였다. 자료 분석은 SPSS 23.0 프로그램을 사용하여 상관분석과 다중회귀분석을 실시하였다. 연구 결과 귀국 대학생들의 자기개념 명확성, 정서인식 명확성, 회복탄력 성이 이들의 대학생활 적응에 유의한 영향을 미치는 것으로 나타났다. 또한 자기개념 명확성, 정서인식 명확성, 회복탄력성은 대학생활 적응의 하위 요인인 학업적응, 사회적응, 개인-정서적응에 유의한 영향을 미쳤다. 본 연구 결과는 귀국 대학생의 성 공적인 대학생활 적응을 모색하기 위한 교육적 시사점을 가지며 그들에 대한 교육연구의 기초자료로 사용될 수 있을 것으로 기대된다. The purpose of this study is to discover the psychological factors influencing successful college adaptation of returnee college students in Korea who spent adolescence abroad. For this reason, psychological factors that affect college adaptation (self-concept clarity, emotional clarity, resilience) of 254 returnee college students, who are attending college or on a leave, were analyzed. Data were analyzed through correlation analysis and multiple regression analysis using SPSS 23.0. As a result, returnee students self-concept clarity, emotional clarity, and resilience had a significant influence on their college adaptation. Moreover, these factors had a significant impact on their sub-factors such as academic adjustment, social adjustment and personal-emotional adjustment. These results have educational implications to help returnee college students to successfully adapt to college life and are expected to be used as a basis for the study of returnee college students.
뒤통수밑근 근막이완기법이 전방머리자세 환자의 머리척추각과 상부 목 굽힘 각도에 미치는 영향
장예은(Ye-Eun Jang),전지형(Ji-Hyeong Jeon),문성욱(Seong-Wook Moon),서해니(Hae-Ni Seo),유일영(Il-Young Yu) 한국임상움직임치료학회 2023 한국임상움직임치료학회지 Vol.3 No.2
Background Forward head posture (FHP) is a representative disease of modern society, and it is closely related to the suboccipital muscle. However, there is little study that suboccipital myofascial release af-fect on the cranio-vertebral angle (CVA) and upper cervical flexion angle. Objectives The purpose of this study is to investigate the immediate effect of suboccipital myofascial release on the CVA and upper cervical flexion angle in patients with FHP Methods The subjects were 19 patients with FHP. The CVA and upper cervical flexion angle were measured before and after applying a 15-minute myofascial release to the suboccipital muscles. The CVA and upper cervical flexion angle were assessed using the Kinovea program. The difference before and after myofascial release was analyzed using a paired t-test. Results As a result of applying myofascial release on suboccipital muscles for 15 minutes to patients with a forward heard posture, there was a significant increase in the CVA and the upper cervical flexion angle (p < 0.05). Conclusions Myofascial release on suboccipital muscles is an effective treatment method for improv-ing FHP and restoring upper cervical movement in patients with FHP.
압력 바이오 피드백을 이용한 골반 바닥근 수축 훈련이 엎드려 엉덩관절 폄 시 엉덩관절과 몸통 근육 근활성도와 골반 움직임에 미치는 영향
장예은(Ye-Eun Jang),양종민(Jong-Min Yang),이상민(Sang-Min Lee),서해니(Hae-Ni Seo),고민주(Min-Joo Ko) 한국임상움직임치료학회 2024 한국임상움직임치료학회지 Vol.4 No.1
Background The prone hip extension exercise (PHE) has been used as a strengthening exercise for individuals with weak hip extensors or to assess stability of the lumbar-pelvic region. Patients with low back pain often have excessive movement of the lumbar spine and pelvis during prone hip extension exercise. To minimize this unwanted movement, trunk stability has been emphasized. Objectives The purpose of this study is to investigate the effect of pelvic floor muscle contraction training using a pressure biofeedback unit on hip and trunk muscle activity and pelvic movement during prone hip extension. Methods The study included 15 healthy adults. Surface electromyography (EMG) was used to measure the EMG activity of the transversus abdominis/internal oblique (TrA/IO), dominant side erector spinae(ES), gluteus maximus (GM), and hamstring muscles (HM) during prone hip extension exercise before and after pelvic floor muscle contraction training. Xsens DOT was used to measure anterior pelvic tilt and pelvic rotation angle during prone hip extension exercise. Paired t-test were conducted to compare muscle activation and pelvic movement before and after pelvic floor muscle training. Results The EMG activity of bilateral TrA/IO, GM significantly increased, and dominant side ES significantly decreased after pelvic floor muscle contraction training (p <0.05). There was no significant difference in the EMG activity of the dominant side HM following pelvic floor muscle training. Both the anterior pelvic tilt angle and pelvic rotation angle significantly decreased compared to before training (p < 0.05). Conclusions Pelvic floor muscle training using pressure biofeedback increases the muscle activation of the hip extensor muscles and decreases the muscle activation of the lumbar extensor muscles during prone hip extension exercise. Additionally, pelvic floor muscle training reduces pelvic movement, reducing unwanted compensatory movement. Therefore, pelvic floor muscle training using a pressure biofeedback unit is an effective training method to increase lumbopelvic stability and reduce pelvic compensation during lower extremity movement.