건강한 성인의 몸통 앞쪽 굽힘 시 시각적 생체 되먹임을 이용한 볼기근 조임 운동이 척추세움근의 근 활성도와 허리뼈 및 엉덩관절의 움직임 패턴에 미치는 효과

김동휘(Dong-Hwi Kim),오재섭(Jae-Seop Oh),김미현(Mi-Hyun Kim),안덕현(Duk-Hyun An),손정호(Jung-Ho Son) 한국임상움직임치료학회 2021 한국임상움직임치료학회지 Vol.1 No.1

Background : Trunk forward bending is common in everyday life but can cause mechanical stress on the lumbar spine and cause low back pain if performed in the wrong way. Mechanical stress occurs in the lumbar spine during forward bending because of incorrect movement of the lumbar spine or hyperactivation of the erector spinae muscle. Therapeutic exercise using various auxiliary devices is necessary to reduce such stress. Objectives : The purpose of this study is to determine how visual biofeedback gluteus squeeze exercise affects the movement in the lumbar spine and the muscle activity of the erector spinae during forward bending. Methods : In this study, 25 healthy adults were selected as the subjects. During forward bending, each subject identified the information of visual biofeedback by linking a belt with a tension sensor to a mobile phone and then performing the exercise with the gluteal muscle as much as possible. The movement of the lumbar spine in forward bending before and after the performance of the exercise was compared with the muscle activity of the erector spinae to identify the effect of the visual biofeedback gluteus squeeze exercise. Results : Findings showed that the angle of the lumbar flexion was significantly higher during the forward bending performed after the visual biofeedback gluteus squeeze exercise than that without the visual biofeedback gluteus squeeze exercise. Moreover, the muscle activity of the erector spinae decreased significantly when the visual biofeedback gluteus squeeze exercise was not applied when the motion was performed in forward bending. Conclusions The results of this study confirm that the visual biofeedback gluteus squeeze exercise effectively reduces the muscle activity of the erector spinae and improves the movement of the lumbar spine during forward bending in healthy adults.

즉각적인 뒤넙다리근 편심성 운동과 정적 스트레칭이 몸통 전방 굽힘에 미치는 영향

김태은,최보람 한국전문물리치료학회 2019 한국전문물리치료학회지 Vol.26 No.3

Background: Limitations in hip flexion caused by tight hamstrings lead to excessive lumbar flexion and low back pain. Accordingly, many studies have examined how to stretch the hamstring muscle. However, no study has focused on the effect of hamstring eccentric exercise for tight hamstrings on trunk forward bending. Objects: We compared the short-term effect of hamstring eccentric exercise (HEE) and hamstring static stretching (HSS) on trunk forward bending in individuals with tight hamstrings. Methods: Thirty individuals with tight hamstrings participated in the study. The subjects were randomly allocated to either a HEE or HSS group. To determine whether the hamstrings were tight, the active knee extension (AKE) test was performed, and the degree of hip flexion was measured. To assess trunk forward bending, subjects performed the fingertip to floor (FTF) and modified modified Schober tests, and the degree of trunk forward bending was measured using an inclinometer. We used paired t-tests to compare the values before and after exercise in each group and independent t-tests to compare the two groups on various measures Results: The FTF test results were improved significantly after the exercise in both groups, and AKE for both legs increased significantly in both groups. There was no significant difference in the hip angles, mmS test results, or degree of trunk forward bending between groups after the exercise. No test results differed significantly between the two groups at baseline or after the exercise. Both groups increased hamstring flexibility and trunk forward bending. Conclusion: HSS and the HEE groups increased hamstring flexibility and trunk forward bending. However, HEE has additional benefits, such as injury prevention and muscle strengthening.

Comparison of the Anterior Pelvic Tilting Angle during Forward Bending in Individuals with and without Sciatic Nerve Tension

최규환 KEMA학회 2019 근골격계과학기술학회 Vol.3 No.2

ABSTRACT Background Lumbopelvic rhythm can be affected by several factors, such as stiffness of the hip joint, hamstring, and ankle, and sciatic nerve tension. Currently, no reports indicating that sciatic nerve tension affects the anterior pelvic tilting angle during forward bending are available. Purpose This study aimed to compare the anterior pelvic tilting angle during forward bending in subjects with and without sciatic nerve tension. Study design Cross-sectional comparative study. Methods Eighty-eight subjects were screened and classified into two groups, namely subjects with (12 subjects) and without (12 subjects) sciatic nerve tension. Sciatic nerve tension was measured by the knee extension angle recorded in the seated position with ankle dorsiflexion using the Smart KEMA motion sensor. The mean±standard deviation of the knee extension angle with ankle dorsiflexion in our study population was 66.8±11.8°. The standard deviation was used to define the group with sciatic nerve tension (<55°) and without sciatic nerve tension (>79°). The Smart KEMA motion sensor was placed on the second spinous process of the sacrum to measure the anterior pelvic tilting angle during forward bending. Results The mean values of the knee extension angle with ankle dorsiflexion were 46.6° and 82.9° for the groups with and without sciatic nerve tension, respectively. The mean values of the anterior pelvic tilting angle measured during the forward bending test were 36.7° and 46.5° in the groups with and without sciatic nerve tension, respectively. There was a statistically significant difference in the anterior pelvic tilting angle between the groups with and without sciatic nerve tension (p<0.05). Conclusions The results of this study suggest that sciatic nerve tension can affect the anterior pelvic tilting angle during forward bending. Further studies are needed to determine whether exercise for decreasing sciatic nerve tension can increase the anterior pelvic tilting angle during forward bending.

Effects of Exercise Using a Stick on Muscle Activity of Gluteus Maximus and Erector Spinae during Backward Return from Forward Bending

이원휘 KEMA학회 2019 근골격계과학기술학회 Vol.3 No.2

ABSTRACT Background Chronic lower back pain patients commonly present with impaired lumbar movement patterns, which may result in pain and excessive loads on the lumbar spine. A stick exercise can be effective to correct impaired movement patterns during forward bending in patients with lumbar flexion syndrome. Purpose This study investigated the effect of exercise using a stick on muscle activity of gluteus maximus and erector spinae during backward return from forward bending. Study design Comparative, repeated measures design. Methods A total of 25 male patients with lumbar extension syndrome were recruited to this study. All patients performed backward return from forward bending with and without a stick. Gluteus maximus and erector spinae surface electromyography activities during backward return from forward bending were measured. Results There was a significant difference in gluteus maximus and erector spinae muscle activities, on both sides, with versus without use of the stick. During backward return from forward bending with a stick, the activities of the right and left gluteus maximus increased significantly (p<0.05), and those of the right and left erector spinae decreased significantly (p<0.05), compared to without a stick. Conclusions This study suggests that use of a stick can minimize excessive lumbar extension during backward return from forward bending.

성인여성의 頸部 및 肩部의 유형에 따른 길원형 및 칼라원형의 설계에 관한 연구

김희숙 복식문화학회 2001 服飾文化硏究 Vol.9 No.5

The definite objects of this study are as follows; 1.The study presents the methods of the designing collar pattern and bodice pattern by each concrete object after comparing and analyzing the factors among the features which are in need of clothes designing. 2.The object of this study is to make body-suitable ready-made clothes by comparing and analyzing the methods of designing collar pattern and bodices pattern presented by each concrete objects and Bunka Pattern. The results of this study are as follows; 1.The results of this study developed the body-suitable bodice pattern of bend-forward type, straight type and lean-back type. Compared with the Bunka pattern by physical function test, this study was rated high in the aspects of the shape of neck and shoulder. 2.The collar pattern was designed according to each type. The front center rising point of straight type is 2.5cm, lean-back type is 3.0cm and bend-forward type is 1.5cm. Compared with the Bunka pattern by physical function test, this study is rated high in the aspects of the shape. To confirm the increase and change of the measure definitely, the complete examination of each subject is necessary. This developed and investigated pattern must be supplemented more by comparing and analyzing with other pattern and body types. Key words: straight type, lean-back type, bend-forward type, bodice pattern, collar pattern

Development of Elderly Women`s Dress Form According to Their Somatotypes for the Silver Apparel Industry

( Chu Yeon Suh ) 한국패션비즈니스학회 2004 패션 비즈니스 Vol.8 No.6

The purpose of this study is to develop a dress form for elderly women according to their somatotype to be used for improving the fit of garments and patterns. Analyzing each somatotype, there was a significant difference among the 4 somatotypes in most of measure items. Bend-forward Group had shorter front length items. Abdomen-fat Group had lower upper-body values than Average Group and similar lower-body values to Fat Group. In most items except height, Fat Group had the biggest values. Analyzing the mean cross-section according to the section measurement parts, no difference existed in shoulder part and under bust part. However, in upper bust, bust, waist, abdomen, high hip, and hip parts, a significant difference existed. Also, according to the results of the mean cross-section as well as the average cross overlap section for each somatotype, there was a significant difference among the four somatotypes. Thus, Abdomen-fat Group and Fat Group were similar, while Bend-forward Group and Average Group were alike. According to the increase of age, lower body tended to have more conspicuous changes. Analyzing the profile of somatotypes, there existed a obvious significant difference among the 4 somatotypes, implying that the characteristics of somatotype need to be reflected when to develop dress forms for elderly women. Therefore, these differences must be an essential factor in pattern design. Comparing the current dress form with the dress form developed with simulation, we could find that a dress form developed for elderly women which reflects the characteristics of body shape is much better than a dress form developed by simple size variation such as small, medium and large size divisions to improve the fit of garments and pattern designs.

20대 남성의 상반신 측면형태에 따른 치수변화에 관한 연구

곽연신(Kwak Youn Shin),김애린(Kim Ae Lin) 한국복식학회 2004 服飾 Vol.54 No.2

In this study. the photographic and anthrowmetric measurements of men in the 20`s were made, and pattern making professionals visually evaluated their side photos to classify lateral views. These data were analyzed hy being compared with existing research results to select objective standards. and body types were classified according to the selected standard. In addtion. body features were defined according to lateral views based on measurement items and indices. and standard lines and determining factors for visual evaluation which determines lateral views were revealed. Back length-front length size smaller than 1.km was named as the lean-hack type. 1.5-3.9cm was named as the straight type. and that larger than 3.9cm was named as the bend-forward type. In the straight type. the bisection point of waist depth was located at a sirmilar place to tragion level vertical line. In the lean-back type. the point was at the front of tragion level vertical line. In the bend-forward type. the point was at the back of tragion level vertical line.

의복설계를 위한 성인여성의 頸部 및 肩部의 유형화Ⅱ : 체형별, 연령층별 변화분석

김희숙 복식문화학회 2000 服飾文化硏究 Vol.8 No.5

The definite objects of this study are as follows; 1.The study presents concrete objects of the shape of adult women's neck and shoulder after comparing and analyzing the features of five age groups; the former young age, the latter young age, the former middle age, the latter middle age and the old age. 2.The study presents concrete objects of adult women's neck and shoulder by type, straight type and lean-back type in order to be examined the features farmer middle the body types; bend-forward of the body types. The results of this study are as follows; 1.The shape of neck and shoulder needs the several concrete objects of each types because of the variable factors in size and body types. But the concrete objects of the types referred in five age groups contain all the important factors and enable to design the body suitable clothes. 2.This study shows that generally bend-forward type contains rising shoulder and lean-back type contains drooping shoulder, and straight type contains average value of neck and shoulder. The results of this study developed the body-suitable clothes of bend-forward type, straight type and lean-back type.

의복원형 설계를 위한 농촌지역 노년기 여성의 체형분류

김희숙 한국의류산업학회 2002 한국의류산업학회지 Vol.4 No.5

The purpose of this study is to investigate the somatotype characteristics of changing body shape according to the increase of age for farm elderly women's clothing. The subjects of this study were farm elderly women aged 60-80 years old in Andong, Eusung and Kunwe areas in korea. They were measured by martin instrument and camera. Employing a sample of 258 data were analyzed by using F-test, Duncan-test, factor & cluster analysis. The results were as follows: In somatotype characteristics of farm elderly women, changing body shape according to age began to increase from 65 years old. Five factors were extracted through factor analysis(size factor, shape factor of the back, shape factor of the bust and the abdominal, shape factor of the neck and the shoulder, shape factor of the hip and the knee), which explain 71.6% of variance. Through cluster analysis, four types were classified : Type Ⅰ is average type, Type Ⅱ is bend-forward type, Type Ⅲ is lean-backward type, and Type CV is side-view type.

도수 촉진과 막대를 이용한 몸통의 전방 굴곡 운동에 따른 요추와 고관절 굴곡 각도의 변화

정성대 ( Sung Dae Choung ),박규남 ( Kyue Nam Park ),홍지아 ( Ji A Hong ),조민수 ( Min Sue Cho ),손동휘 ( Dong Hwi Son ),신헌석 ( Heon Seock Cynn ) 한국전문물리치료학회 2011 한국전문물리치료학회지 Vol.18 No.1

The purpose of this study was to identify the effects of manual facilitation and a stick on lumbar and hip joint flexion angles in subject with lumbar flexion syndrome during forward bending from a sitting position. Fifteen subjects with lumbar flexion syndrome were recruited for this study. As a pretest, all subjects performed three repetitions of bending the trunk forward until the tips of their fingers touched the target bar. After this pretest, the subjects practiced the forward bending of the trunk 10 times, using either manual facilitation or a stick. Then, as a posttest, all subjects repeated the pretest procedure. The flexion angles of lumbar spine and hip joint during forward bending in a sitting position were measured using a three-dimensional motion analysis system. A paired t-test was used to determine the statistical differences between pre-test and post-test flexion angles and pre- and post-test flexion angle differences between forward bending with manual facilitation and forward bending with a stick. The level of statistical significance was set at p=.05. The results of the study showed that the angle of the lumbar flexion decreased significantly and the bilateral hip flexion angle increased significantly when performing forward bending with stick and manual facilitation. Furthermore, the angle of lumbar flexion decreased significantly and the angle of bilateral hip flexion increased significantly in forward bending with a stick compared to forward bending with manual facilitation. The findings of this study indicate that both forward bending with manual facilitation and sticks could be used to prevent excessive lumbar flexion and increase hip flexion, and that forward bending with a stick is more effective than forward bending with manual facilitation for inducing lumbar spine and hip joint angle changes.