The Effect of The Forward Head Posture on Postural Balance in Long Time Computer Based Worker

Jung-Ho Kang,Seo-Ra Yoon,Rae-Young Park,Su-Jin Lee,Ja-Young Kim,Kwang-Ik Jung 대한재활의학회 2012 Annals of Rehabilitation Medicine Vol.36 No.1

Objective To estimate the effects of a relatively protruded head and neck posture on postural balance, in computer based worker. Method Th irty participants, who work with computers for over 6 hrs per day (Group I), and thirty participants,who rarely work with computers (Group II), were enrolled. Th e head and neck posture was measured by estimating angles A and B. A being the angle between the tragus of the ear, the lateral canthus of the eye, and horizontal line and B the angle between the C7 spinous process, the tragus of the ear, and the horizontal line. Th e severity of head protrusion with neck extension was assessed by the subtraction of angle A from angle B. We also measured the center of gravity (COG) and postural balance by using computerized dynamic posturography to determine the eff ect of computer-based work on postural balance. Results Results indicated that group I had a relatively more protruded head with extensive neck posture (angle B-A of group I and group II, 28.2±8.3, 32.9±6.0; p<.05). Th e COG of group I tended more toward the anterior than that of group II. Postural imbalance and impaired ability to regulate movement in forward and backward direction were also found. Conclusion The results of this study suggest that forward head postures during computer-based work may contribute to some disturbance in the balance of healthy adults. These results could be applied to education programs regarding correct postures when working at a computer for extended periods of time. Objective To estimate the effects of a relatively protruded head and neck posture on postural balance, in computer based worker. Method Th irty participants, who work with computers for over 6 hrs per day (Group I), and thirty participants,who rarely work with computers (Group II), were enrolled. Th e head and neck posture was measured by estimating angles A and B. A being the angle between the tragus of the ear, the lateral canthus of the eye, and horizontal line and B the angle between the C7 spinous process, the tragus of the ear, and the horizontal line. Th e severity of head protrusion with neck extension was assessed by the subtraction of angle A from angle B. We also measured the center of gravity (COG) and postural balance by using computerized dynamic posturography to determine the eff ect of computer-based work on postural balance. Results Results indicated that group I had a relatively more protruded head with extensive neck posture (angle B-A of group I and group II, 28.2±8.3, 32.9±6.0; p<.05). Th e COG of group I tended more toward the anterior than that of group II. Postural imbalance and impaired ability to regulate movement in forward and backward direction were also found. Conclusion The results of this study suggest that forward head postures during computer-based work may contribute to some disturbance in the balance of healthy adults. These results could be applied to education programs regarding correct postures when working at a computer for extended periods of time.

고령자의 게임기반 시각피드백 훈련에 따른 자세 균형 효과

이정원(Jeong-Won Yi),유미(Mi Yu),이아름(Ah-Reum Lee),권대규(Tae-Kyu Kwon) 한국콘텐츠학회 2013 한국콘텐츠학회논문지 Vol.13 No.10

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<005). 이는 자세 균형 게임은 자세 균형과 관련된 전ㆍ후ㆍ좌ㆍ우ㆍ다양한 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. In this paper, we analyzed the effects of game-based visual feedback training on postural balance control in young adults and older adults. We provided postural balance training by 23 young adults and 14 older adults and for four weeks in fifth minute a day and three days a week using IBalance(Cybermedic Inc., Korea). We evaluated the ability of postural balance using balance SD(Biodex, medicalscience Inc., USA) for the validation of game contents based on visual feedback training program. The results showed that postural stability and limits of stability of young adults and older adults were improved significantly before and after the training(p<0.05). Thus, the games of postural balance encouraged anterior, posterior, medial, lateral and multidirectional weight shifting regarding postural balance. Our study indicates that postural balance training of visual feedback based game could be adapted for improving postural balance. Moreover, we could develope of game contents for individuals and various ages for effective application of this game-based visual feedback training.

바른체형 운동프로그램이 여자고등학생의 자세 및 발의 균형감에 미치는 영향

손남영 ( Nam Young Son ),이중숙 ( Joong Sook Lee ),김주혁 ( Joo Hyeok Kim ) 한국운동역학회 2014 한국운동역학회지 Vol.24 No.1

The purpose of this study was to investigate the degree of improvement of posture and foot balance between the exercise group and the control group after upright body type exercise program of 12 weeks with 14 female students in B female high school. According to the procedure of this study, following conclusion came out. First, The change of head`s posture became near a centerline and a significant decrease from 7.57±13.95mm to 2.71±5.23mm in experimental group and there was a statistically significant difference (p<.002). The change of left foot balance was near the perfect balance (50%) from 48.93±3.87% to 49.74±2.95% and right foot balance was from 51.07±3.87% to 50.26±2.95% in experimental group and there were near the perfect balance (50%). The change of left foot balance of control group fall away the perfect balance (50%) from 49.97±2.67% to 49.08±1.41%, right foot balance also fall away the perfect balance (50%) from 50.03±2.67% to 50.92±1.41%. As a conclusion, upright body type exercise program considered to effect posture and foot balance in female high school girls. Consequently It was suggested that upright body type exercise program with improvement and prevention for posture`s unbalance of female high school girls. This program could be utilized for improvement of youth posture and foot balance.

시지각적 되먹임 훈련이 뇌졸중 환자의 동적자세 균형에 미치는 영향

이건철,윤정규,Lee, Geon-Cheol,Yoon, Jung-Gyu 대한물리치료과학회 2002 대한물리치료과학회지 Vol.9 No.2

This study is aimed to compare the effect of visuo-perceptual biofeedback sitting balance training and conventional sitting balance training using Balance Master on stroke patients with that of program in order to analyze the effect it has on dynamic postural balance. The subjects are twenty-four stroke patients who are receiving physical therapy in Ilsan Paik Hospital and can maintain sitting posture by themselves. These patients were divided to control group and experimental group randomly. In order to compare to control and experimental group before and after the balance training, they were tested with Mann-Whitney U test and in order to compared the changes before and after the balance training, they were tested with Wilcoxon signed-ranks test. The results are as follows: we measured the ability of dynamic posture balance control with limit of stability(LOS) test and rhythmic weight shift test. There was an increasing improvement in the ability of dynamic posture balance control of the experimental group that had visuo-perceptual biofeedback sitting balance control training using the Balance Master(p<0.05, p<0.01). According to the results from above, compared to conventional sitting balance training programs, visuo-perceptual biofeedback sitting balance control training using the Balance Master is considered to be a more valuable therapy in balance control improvement and physical function improvement. It is considered that if the weak points are made up, the training with Balance Master will give help to stroke patients and to patients with balance control disabilities and will further more contribute to successful rehabilitation therapy.

경추 자세변화에 따른 성인의 족저압력 균형 및 폐활량의 차이

Joo, Ha Young,Yang, Jeong Ok,Lee, Joong Sook 한국운동역학회 2020 한국운동역학회지 Vol.30 No.1

Objective: The purpose of this study was to differences of foot plantar pressure balance and lung capacity according to cervical posture in adults. Method: The subjects consisted of 33 adults in their 20s and 50s who use M centers in B-gu and H-gu, B-City, and they measured foot plantar pressure balance and lung capacity according to cervical posture (cervical normal curvature posture, cervical flexural posture) in adults. Results: In this study, the difference of foot plantar pressure balance according to cervical posture were analyzed. In the difference between left and right foot pressure balance. It was 1.50% increased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. In the difference between the anterior and posterior foot pressure balance. It was 4.28% increased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. The difference of lung capacity according to cervical posture were analyzed. In the PEF, It was 58.63 l/min decreased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. In the FEV1, It was 0.15 ℓ decreased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. Conclusion: The results of this study suggest that had a positive effect on differences of foot plantar pressure balance and lung capacity at cervical normal curvature posture in adults. In future research, itis believed that research on the elderly who have collapsed the normal curvature posture due to aging, as well as teenagers whose normal curvature posture due to the use of smartphones, will contribute to the balance of foot pressure and improvement of the right cervical habits. In future studies, it is also believed that it will be necessary to measure lung capacity after performing exercise according to the cervical posture, thereby providing sufficient oxygen during exercise to enhance the persistence and efficiency of the movement.

바닥재의 차이가 신체자세동요에 미치는 영향

정종화(Jeong Jong-Hwa),허진강(Hur Jin-Gang),이주상(Lee Ju-Sang) 대한치료과학회 2010 대한치료과학회지 Vol.2 No.1

Objective: The aim of this research is to determine the influence of the difference of platforms on postural stability during standing for an adult target. Method: This research was conducted on 30 adult students from H University in Gangwon Province from April 2010 to July 2010. 3 different platforms were tested. Measurement tools used were the Tetrax Interactive Balance System to determine static balance, 7-item BBS-3P and the Functional Reach Test to determine dynamic balance. To determine the change in balance according to platform, ANOVA was used. Scheffe was used to determine the similarities in the 3 platforms. Results: The softer the platform, the smaller the static balance and dynamic balance (p<.05>). Blocking of vision also showed a decrease in static balance (p<.05>). The firm platform showed a larger decrease in dynamic balance compared to static balance, whereas soft platform showed a larger decrease in static balance over dynamic balance. Conclusion: This study reveals that high hardness is favorable to achieve safety. In the case that static balance is important, a soft platform should be selected. In the case that dynamic balance is important, a firm platform should be selected.

Effects of Treadmill Gait Training According to Different Inclination on Postural Balance in Patients with Chronic Stroke

( Myeong Su Choi ),( Jong Su Lee ),( Kyoung Kim ),( Young Mi Kim ) 대한물리치료학회 2018 대한물리치료학회지 Vol.30 No.6

Purpose: This study was to examine the effects of treadmill gait training at different controlled inclinations on the standing balance of hemiplegic patients caused by cerebrovascular injury. Methods: The study’s subjects were 44 patients with chronic stroke, randomly divided into three experimental groups: 0° treadmill gait training (n=14), 5° treadmill gait training (n=15), and 10° treadmill gait training (n=15). In addition to conventional physical therapy, the subjects underwent gait training on a treadmill with one of three different inclinations for 30 min per session five times per week for six weeks. The Biodex balance system SD, Berg balance scale, and timed up and go tests were used to measure the postural balance of the patients. Results: This study showed that gait training on a treadmill at controlled inclinations of 0°, 5°, and 10° positively influenced the stroke patients’ standing balance. The 5° and 10° inclination gait training groups showed significantly more improvement than the 0° inclination group. Conclusion: Gait training on a treadmill with inclinations of 0°, 5°, or 10° can be said to positively affect the postural balance of hemiplegic patients due to stroke. In particular, 5° and 10° inclination gait training offered more significant improvement than the 0° inclination gait training group. When added to regular treatment routines, gait training at controlled inclinations is an effective intervention for improving hemiplegia due to postural balance.

경추 자세변화에 따른 성인의 족저압력 균형 및 폐활량의 차이

주하영,양정옥,이중숙 한국운동역학회 2020 한국운동역학회지 Vol.30 No.1

Objective: The purpose of this study was to differences of foot plantar pressure balance and lung capacity according to cervical posture in adults. Method: The subjects consisted of 33 adults in their 20s and 50s who use M centers in B-gu and H-gu, B-City, and they measured foot plantar pressure balance and lung capacity according to cervical posture (cervical normal curvature posture, cervical flexural posture) in adults. Results: In this study, the difference of foot plantar pressure balance according to cervical posture were analyzed. In the difference between left and right foot pressure balance. It was 1.50% increased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. In the difference between the anterior and posterior foot pressure balance. It was 4.28% increased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. The difference of lung capacity according to cervical posture were analyzed. In the PEF, It was 58.63 l/min decreased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. In the FEV1, It was 0.15 ℓ decreased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. Conclusion: The results of this study suggest that had a positive effect on differences of foot plantar pressure balance and lung capacity at cervical normal curvature posture in adults. In future research, it is believed that research on the elderly who have collapsed the normal curvature posture due to aging, as well as teenagers whose normal curvature posture due to the use of smartphones, will contribute to the balance of foot pressure and improvement of the right cervical habits. In future studies, it is also believed that it will be necessary to measure lung capacity after performing exercise according to the cervical posture, thereby providing sufficient oxygen during exercise to enhance the persistence and efficiency of the movement.

경추 자세변화에 따른 성인의 족저압력 균형 및 폐활량의 차이

( Ha Young Joo ),( Jeong Ok Yang ),( Joong Sook Lee ) 한국운동역학회 2020 한국운동역학회지 Vol.30 No.1

Objective: The purpose of this study was to differences of foot plantar pressure balance and lung capacity according to cervical posture in adults. Method: The subjects consisted of 33 adults in their 20s and 50s who use M centers in B-gu and H-gu, B-City, and they measured foot plantar pressure balance and lung capacity according to cervical posture (cervical normal curvature posture, cervical flexural posture) in adults. Results: In this study, the difference of foot plantar pressure balance according to cervical posture were analyzed. In the difference between left and right foot pressure balance. It was 1.50% increased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. In the difference between the anterior and posterior foot pressure balance. It was 4.28% increased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. The difference of lung capacity according to cervical posture were analyzed. In the PEF, It was 58.63 l/min decreased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. In the FEV1, It was 0.15 ℓdecreased in the cervical flexural posture than in the cervical normal curvature posture, and a statistically significant difference was observed. Conclusion: The results of this study suggest that had a positive effect on differences of foot plantar pressure balance and lung capacity at cervical normal curvature posture in adults. In future research, it is believed that research on the elderly who have collapsed the normal curvature posture due to aging, as well as teenagers whose normal curvature posture due to the use of smartphones, will contribute to the balance of foot pressure and improvement of the right cervical habits. In future studies, it is also believed that it will be necessary to measure lung capacity after performing exercise according to the cervical posture, thereby providing sufficient oxygen during exercise to enhance the persistence and efficiency of the movement.

The Effect of Ankle Balance Taping on Gait and Balance in Stroke Patients

Kyoung-Won Kim,Ki Bum Jung,Dong-Ho Kim,Yongwoo Lee 물리치료재활과학회 2023 Physical therapy rehabilitation science Vol.12 No.2

Objective: Kinesio tape has been applied to the ankle to improve balance and gait. Stroke patients show abnormal gait patterns due to foot drop. This study aimed to determine the effects of ankle balance taping which to support the ankle joint on balance and gait in patients with chronic stroke. Design: A randomized controlled trial. Methods: Twenty-four chronic stroke patients were selected and randomized into experimental group (n=12) and control group (n=12). The experimental group applied kinesio taping three times a week for three weeks, and the control group applied placebo taping for the same amount of time. To evaluate the effectiveness of the treatment, the subjects' walking ability, static balance, and dynamic balance were assessed before and after the experiment. Gait speed and spatiotemporal gait ability were measured to examine walking ability, postural sway velocity and velocity moment for static balance, and Timed-Up and Go test and Berg Balance Scale were conducted to check dynamic balance. Results: The experimental group showed a significant increase in walking ability, static balance, and dynamic balance in the within-group pre-post difference (p<0.05). In the between-group comparison, the experimental group had a significant difference in walking ability than the control group (p<0.05). Conclusions: Ankle balance taping can help improve gait, and this study can be used as a basis for future studies of ankle balance taping.