계단 오르기 동안 지면 접촉 조건에 따른 뇌졸중 환자의 근활성도 비교

윤혜진,오덕원,김경환,기경일,Youn, Hye-Jin,Oh, Duck-Won,Kim, Kyung-Hwan,Ki, Kyong-Il 대한고유수용성신경근촉진법학회 2010 PNF and Movement Vol.8 No.2

Purpose : This study aimed to investigate the effect of differing ground contact conditions on the eletromyographic(EMG) activity in rectus femoris, biceps femoris, tibialis anterior, gastrocnemius medialis during step-up activity in patients with hemiparesis. Methods : 10 hemiparetic patients performed step-up activity on three different ground contact conditions: entire ground contact, 2/3 ground contact, 1/3 groud contact. Result : The EMG activities of gastrocnemius medialis significantly changed on 1/3 ground contact(p<.05). However, no significant changed rectus femoris, biceps femoris, tibialis anterior between three differing ground contact conditions (p>.05). Conclusion : This study provides that EMG activities of gastrocnemius medialis significantly changed on different ground contacts. Therefore, this method can be used to strengthen the gastrocnemius medialis.

요통 환자와 정상인에 적용한 골반저근 수축과 복부 드로우-인이 외측 복부 근육 수축 두께에 미치는 영향

윤혜진,김지선,양진모,기경일,Youn, Hye-Jin,Kim, Ji-Seon,Yang, Jin-Mo,Ki, Kyong-Il 대한고유수용성신경근촉진법학회 2015 PNF and Movement Vol.13 No.1

Purpose: The aim of this study was to examine the effects of abdominal muscle contraction thickness using real-time ultrasound imaging while applying an abdominal draw-in maneuver (ADIM) and pelvic floor muscle contraction (PFC) to low back pain patients and healthy subjects. Methods: The subjects were 21 young adults; a group of 10 low back pain patients and a control group of 11 healthy subjects. Measurements were made with the subjects on a pillow in a supine position, with the knee joints flexed at 60 degrees. While the two groups conducted ADIM and PFC, their transverse abdominal muscle (TrA), internal abdominal oblique muscle (IO), and external abdominal oblique muscle (EO) thicknesses were measured using an ultrasound imaging system. Result: The TrA muscle contraction thickness ratio during PFC and ADIM was significantly lower in the low back pain group than in the healthy group (p<0.05). The EO muscle contraction thickness ratio during ADIM was also significantly lower in the low back pain group than in the healthy group. The healthy group's muscle contraction thickness ratio was significantly lower during PFC than during ADIM in the TrA, IO, and EO (p<0.05). The low back pain group's muscle contraction thickness ratio was lower during PFC than during ADIM in the TrA, IO, and EO, but the difference was not statistically significant. Conclusion: The results of this study indicate that oral direction during ADIM induced an appropriate contraction of the TrA. Therefore, the procedure reported here may be applied during rehabilitation for appropriate contraction of the TrA.

교각운동과 들어올리기 패턴결합 교각운동이 하지 근 활성도에 미치는 영향

윤혜진,김경환,박성훈,이민영,Youn, Hye-Jin,Kim, Kyung-Hwan,Park, Sung-Hun,Yi, Min-Young 대한고유수용성신경근촉진법학회 2012 PNF and Movement Vol.10 No.4

Purpose : The purpose of this study was to assess the effects of bridging exercise and combined lifting pattern bridging exercise on the lower extremity muscle activity. Methods : Twenty-five healthy adults volunteered to participate in this study. Subjects were required to complete following bridging exercises. Muscle activity was measured by QEMG-4 system(LXM 3204, Laxtha Korea). A paired t test was used to determine the influence of muscle activity for each exercise and descriptive statistics was used to characteristics of the subjects. Results : The biceps femoris, tibialis anterior, gastrocnemius of combined lifting pattern bridging exercise showed significance excepted vastus medialis(p<.05). In the case of men, biceps femoris showed significance in the combined lifting pattern bridging exercise(p<.05). In the case of women, biceps femoris and tibialis anterior showed significance in the combined lifting pattern bridging exercise(p<.05). Conclusion : The combined lifting pattern bridging exercise was more increased than bridging in lower extremity muscle activation. This result will be used for knee joint stabilizing exercises and biceps femoris strength training.

요통유무에 따른 복부 드로우인과 골반바닥근 수축훈련이 배가로근과 골반바닥근에 미치는 영향

윤혜진 ( Hye Jin Youn ),김지선 ( Ji Seon Kim ) 대한물리의학회 2016 대한물리의학회지 Vol.11 No.1

PURPOSE: This study aimed to identify differences in the thickness of the transverse abdominis (TrA) and pelvic floor muscles (PFM) between those with (LBP) and without low back pain (non-LBP). The standardized methods of contraction for the TrA and PFM were used to perform the abdominal draw-in maneuver (ADIM) and pelvic floor muscle contraction (PFC), respectively. METHODS: This study included 27 young men and women, who were verbally instructed regarding the maneuvers (LBP, n=14; non-LBP, n=13). For all subjects, TrA and PFM thickness were evaluated by ultrasonography during ADIM and PFC. RESULTS: The results of this study showed that TrA thickness increased during ADIM and PFC to a greater degree in the non-LBP group than in the LBP group (p < 0.01). PFM thickness increased more during PFC in the non-LBP group than in the LBP group (p < 0.05). Both groups showed greater increases in TrA thickness during ADIM than during PFC (p < 0.01), and greater increases in PFM thickness during PFC than during ADIM (p < 0.05). CONCLUSION: These results suggest that receiving verbal instructions on how to use each muscle for a specific maneuver was more beneficial than other verbal instruction. Further studies are needed determine how our results may be applied beneficially in research on this topic.

뇌졸중 환자의 보행기능과 삶의 질에 대한 과제지향적 순환식 보행훈련과 트레드밀 보행 훈련의 효과 비교: 무작위 대조군 예비연구

윤혜진(Hye-jin Youn),오덕원(Duck-won Oh) 한국전문물리치료학회 2016 한국전문물리치료학회지 Vol.23 No.2

Background: Many studies regarding task-oriented training have recently demonstrated functional improvement in patients with post-stroke hemiparesis. The task-oriented approach is very diverse, and chronic stroke patients must have access to a sustained systematic treatment program to enhance their walking ability. Objectives: This study aimed to compare the effects of the task-oriented circuit training and treadmill training on walking function and quality of life in patients with chronic stroke. Methods: Fourteen patients with chronic stroke volunteered for this study. The subjects were randomly divided into a task-oriented circuit training group and a treadmill training group with 7 patients in each. Each training regimen was performed for 30 min a day and 3 days a week for 4 weeks. Assessment tools included the Timed Up-and-Go Test (TUGT), 10-m Walk Test, 6-min Walk Test (6MWT), and the Stroke Impact Scale (SIS). Results: The change in results of the TUGT, 6MWT, and SIS measured prior to and following the training regimens appeared to be significantly different between the two groups (p<.05). In addition, after the intervention, significant differences were found for all parameters in the task-oriented circuit training group and for the TUGT, 6MWT, and SIS in the treadmill training group (p<.05). Conclusion: The findings suggest that task-related circuit training and treadmill training may be helpful to improve walking function and quality of life of patients with post-stroke hemiparesis. Additionally, a task-related circuit training program may achieve more favorable outcomes than a treadmill program.

추론상황과 삼단논법형태가 유아의 논리적 사고에 미치는 영향

윤혜진 ( Hye Jin Yun ),유연옥 ( Youn Oak Lu ) 미래유아교육학회 2013 미래유아교육학회지 Vol.20 No.1

본 연구의 목적은 연령, 추론상황과 삼단논법형태에 따라 유아의 논리적 사고의 차이를 알아보고 자 하는 것이다. 인접한 3개 유치원의 만 3, 4, 5세 각 연령별로 80명의 유아가 추론상황인 가상과 실제에 각 40명씩 무선배치하였으며, 이들 유아는 삼단논법의 2가지 형태인 연역과 귀납과제를 모두 수행하였다. 유아의 논리적 사고 검사도구는 문헌고찰을 통해 추출한 요인을 중심으로 구성하였으며 내용타당도를 검증하였다. 수집된 자료는 반복측정 삼원변량분석과 Scheff? 검증을 적용하여 분석하 였다. 연구결과는 다음과 같다. 유아의 논리적 사고는 추론상황, 연령 및 삼단논법형태에 따라 차이 가 있었다. 만 3세는 가상상황에서는 연역삼단논법 점수와 귀납삼단논법 점수간의 차이가 없었으나 실제상황에서 귀납삼단논법 점수가 연역삼단논법 점수보다 높았고, 만 4세는 가상상황과 실제상황 모 두에서 연역삼단논법 점수가 귀납삼단논법 점수보다 높았다. 만 5세는 가상상황에서 연역삼단논법 점 수와 귀납삼단논법 점수간의 차이가 없었으나 실제상황에서는 연역삼단논법 점수가 귀납삼단논법 점 수보다 높았다. 이러한 연구결과를 통해 어린 유아들도 삼단논법의 전제가 자신의 지식과 부합될 때 논리적인 추론의 가능성을 탐색하였으며, 유아의 지식과 상상력이 논리적 추론의 매개 역할을 함을 알 수 있다. The purpose of this study was to investigate the differences in preschool children`s logical thinking according to reasoning situations and modes of syllogism. Participants of this study consisted of 3, 4, and 5-year-old children from three kindergartens in Daegu city. A total of 240 children were randomly assigned to groups according to age and reasoning situations(fantasy, reality), syllogism modes(deduction, induction) with a total of 80 young children in each group. For data analysis, three-way ANOVA and Scheff? Test were used. This study led to the following results. The logical thinking of young children showed differences in accordance with reasoning situations, age, and syllogism modes. Three-year-old children showed a higher score of inductive syllogism than of deductive syllogism in real situation, while 4-year-olds showed a higher score of deductive syllogism in both fantastic and real situation. Five-year-old children showed no difference between the score of inductive and deductive syllogism in fantastic situation. The results from this study explored the possibility of logical reasoning of young children when the premise of syllogism corresponded with their own knowledge. While young children`s knowledge and imagination mediated their logical reasoning, they could independently practice logical reasoning without relating to their own knowledge and imagination as their age increased.

가상놀이에서 유아의 정서표현과 창의성의 관계

윤혜진 ( Hye Jin Yun ),유연옥 ( Youn Oak Yu ) 한국아동교육학회 2009 아동교육 Vol.18 No.3

자세변화에 따른 PNF 패턴이 체간 근육활성에 미치는 영향

김경환,윤혜진,박성훈,임진우,Kim, Kyung-Hwan,Youn, Hye-Jin,Park, Sung-Hun,Lim, Jin-Woo 대한고유수용성신경근촉진법학회 2016 PNF and Movement Vol.14 No.1

Purpose: The purpose of this study was to analyze the effects of proprioceptive neuromuscular facilitation (PNF) patterns on electromyography (EMG) activity in the rectus abdominis, internal abdominal oblique, external abdominal oblique, and erector spinae according to position changes. Methods: Ten healthy adults volunteered to participate in the study. The subjects were required to complete exercises that followed two PNF extremity patterns, namely, an upper extremity extension-adduction-internal rotation pattern and a lower extremity flexion-adduction-external rotation pattern. The exercises were applied in the supine, side-lying, and sitting positions. Repeated measure one-way ANOVA and post-hoc Bonferroni correction were used to determine the influence of the patterns on muscle activity for each muscle, and descriptive statistics were then used to determine the local/global muscle ratios. Results: The upper extremity pattern had a significant effect on the rectus abdominis and erector spinae in the supine position, and on the internal oblique and external oblique in the sitting position (p<0.05). The median value for the internal oblique/rectus abdominis showed a high ratio of 2.05, and a high ratio of 1.01 was shown for the internal oblique/external oblique in the sitting position. The lower extremity pattern had a significant effect on the rectus abdominis in the side-lying position and on the internal oblique, external oblique, and erector spinae in the sitting position (p<0.05). The median value for the internal oblique/rectus abdominis showed a high ratio of 2.83 in the sitting position and a high ratio of 1.30 for the internal oblique/external oblique in the side-lying position. Conclusion: The PNF pattern increases local muscle activation in an unstable position. Therefore, when the pattern is used for intervention purposes, trunk stability and varied position changes should be taken into account.

PNF 패턴에서 각도에 따른 Normal Timing의 적용이 체간 근육활성에 미치는 영향

김경환,윤혜진,박성훈,임진우,Kim, Kyung-Hwan,Youn, Hye-Jin,Park, Sung-Hun,Lim, Jin-Woo 대한고유수용성신경근촉진법학회 2015 PNF and Movement Vol.13 No.2

Purpose: The purpose of this study was to analyze the effect of normal timing according to angular motion in PNF patterns on electromyography (EMG) activity in rectus abdominis, internal oblique abdominal muscle, external oblique abdominal muscle, and erector spinae. Methods: Ten healthy adults volunteered to participate in this study. The participants were required to complete following two PNF extremity patterns; upper extremity extension- adduction-internal rotation pattern with $180^{\circ}$, $90^{\circ}$, $30^{\circ}$ and lower extremity flexion- adduction-external rotation pattern with $0^{\circ}$, $60^{\circ}$, $90^{\circ}$. A paired t-test was used to determine the influence of the two PNF patterns on muscle activity in each muscle. Descriptive statistics were used to determine the ratio of local muscle activity to global muscle activity. Results: In terms of their effect on applied normal timing, the upper and lower extremity pattern significantly affected the rectus abdominis, internal oblique, external oblique, and erector spinae (p < .05). The upper extremity pattern (at an extension angle of $30^{\circ}$) and the lower extremity pattern ((at a flexion angle of $90^{\circ}$) influenced the rectus abdominis, internal oblique, external oblique, and erector spinae (p < .05). Conclusion: The effect of the upper and lower extremity patterns on applied normal timing was significant in that these patterns increased trunk muscle activation. The upper extremity pattern (at an extension angle of $30^{\circ}$) and the lower extremity pattern (at a flexion angle of $90^{\circ}$) increased trunk muscle activation. Normal timing is required to increase trunk muscle strength and extremity movement.

슬관절 각도에 따른 교각운동이 하지근 활성도에 미치는 영향

김경환,기경일,윤혜진,Kim, Kyung-hwan,Ki, Kyong-il,Youn, Hye-jin 대한고유수용성신경근촉진법학회 2011 PNF and Movement Vol.9 No.1

Purpose : The purpose of this study was to assess the effects of the lower extremity muscle activity on bridging exercise according to the knee joint angle. Methods : Twenty-five healthy adults volunteered to participate in this study. Subjects were required to complete following four bridging exercises; knee joint flexion $120^{\circ}$, $90^{\circ}$, $60^{\circ}$, $45^{\circ}$. Surface electromyography from selected lower extremity muscles was normalized to maximum voluntary isometric contraction. Muscle activity was measured by QEMG-4 system (LXM 3204, Laxtha Korea). A repeated measures of one-way ANOVA was used to determine the influence of bridging exercise on muscle activity for each muscle and descriptive statistics was used to determine muscle ratio. Results : The biceps femoris of all bridging exercises showed significantly(p<.05). The vastus medialis and lateralis of all bridging exercises showed significant excepted $120^{\circ}$(p<.05). The rectus femoris of all bridging exercises showed no significant. Median of vastus medialis/rectus femoris ratio of $120^{\circ}$ was 2.03, $90^{\circ}$ was 2.16, $60^{\circ}$ was 2.67, $45^{\circ}$ was 4.10. Median of vastus lateralis/rectus femoris ratio of $120^{\circ}$ was 1.70, $90^{\circ}$ was 1.70, $60^{\circ}$ was 2.08, $45^{\circ}$ was 2.58. Median of vastus medialis/vastus lateralis ratio of $120^{\circ}$ was 1.26, $90^{\circ}$ was 1.50, $60^{\circ}$ was 1.52, $45^{\circ}$ was 1.47. Conclusion : Angular motion decreasing with knee joint flexion made increase biceps femoris and vastus medialis activation. This result will be use knee joint stabilizing exercises during bridging or unstable surface training and biceps femoris strength training.