• PNF and Movement
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• 제17권3호
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• pp.463-469
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• 2019

Purpose: This study investigated the effect of plantar-flexor muscle fatigue on the force sense and joint reposition sense of ankle joints in the healthy adults. Methods: Fifteen healthy subjects (male: 9, female: 6) participated in this study. A digital dynamometer was used to measure the force sense error while a wireless motion capture device was used to measure the joint reposition sense error. To induce plantar-flexor muscle fatigue for a dominant lower extremity, the subjects were asked to perform plantar flexion until exhaustion while barefoot. The differences in force sense error and joint reposition sense error for the ankle joint were measured immediately. The Wilcoxon test was used to compare these values before and after inducing plantar-flexor muscle fatigue. Results: The force sense error and joint reposition sense error of ankle joints after inducing plantar-flexor muscle fatigue increased significantly compared to the values before inducing muscle fatigue. Conclusion: This study suggests that plantar-flexor muscle fatigue could degrade the force sense and joint reposition sense in ankle joints. In addition, it could deteriorate ankle proprioception.

• 대한정형도수물리치료학회지
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• 제16권2호
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• pp.67-75
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• 2010

Purpose: The purpose of this is to identify the relationship among the age, body mass index(BMI) and exercise frequency(EF) with knee joint position sense in korean healthy women. Methods: Healthy women of 328 who participated in this study were tested knee joint position sense; reposition error was measured with a Myrin goniometer. Each reposition error was analyzed using descriptive statics, pearson correlation coefficients, and stepwise multiple regression. Results: The mean reposition error by age groups was significant decrease getting older. The mean reposition error by BMI groups was significant decrease getting higher. And the mean reposition error by EF groups was significant decrease getting lower. The knee joint position sense showed a significantly correlation with age(r=0.36, p=.00), BMI(r=0.34, p=.00) and EF(r=-0.50, p=.00). The most powerful predictor of knee joint position sense was EF. The reposition error according to stepwise multiple regression is $3.36+(-2.64){\times}EF+0.13{\times}age$, and account for 46%($R^2=0.46$) of the variance in the knee joint position sense. Conclusion: The older the women are, for prevent of knee injuries due to decreased joint position sense, regular exercise is essential factor.

• The Journal of Korean Physical Therapy
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• 제32권4호
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• pp.193-197
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• 2020

Purpose: The purpose of this study was to investigate the immediate effects of calf muscle Kinesio taping on ankle joint reposition sense (JRS) and force sense (FS) in healthy elderly. Methods: Thirteen healthy elderly subjects were participated in this study. The error of ankle JRS and FS was evaluated by 3D motion capture device and digital dynamometer depending on three different taping conditions (Kinesio taping, sham taping, and no taping) respectively. All of subjects were asked to perform a proprioceptive task of ankle JRS and FS. One-way repeated ANOVA test was used to compare the error of JRS and FS depending on three different taping conditions. Results: With Kinesio taping over calf muscle, ankle joint reposition sense error and force sense error significantly decreased, if compared with a sham taping or no taping condition. Conclusion: To apply Kinesio taping over calf muscle could enhance ankle proprioceptive sense in the elderly people.

• The Journal of Korean Physical Therapy
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• 제26권3호
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• pp.182-190
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• 2014

Purpose: This study aimed to determine the effects of open kinetic chain exercise (OKCE) and closed kinetic chain exercise (CKCE) using knee reposition sensing on balance, strength, and knee joint reposition sense (JPS) in chronic stroke patients. Methods: Twenty-nine hemiplegic patients participated in this study. Participants were randomly divided into 3 groups, CKCE, OKCE, and controls, with 9, 10, and 10 participants, respectively. The CKCE group completed CKCE using knee reposition sensing, whereas the OKCE group completed OKCE using knee reposition sensing. The control group completed conventional physical therapy. Results: Significant differences between the CKCE and OKCE groups were apparent for all outcomes except the functional reaching test. The CKCE group displayed significant improvements in knee JPS versus the OKCE and control groups (p<0.01). The OKCE group displayed significant improvements in knee extensor muscle strength versus the CKCE and control groups (p<0.05). The CKCE and OKCE groups displayed significantly improvements in static balance versus the control group (p<0.05). Conclusion: CKCE and OKCE improved balance, strength, and knee JPS. Additionally, CKCE might provide a more useful intervention benefit than OKCE for increasing knee JPS, a weight-bearing task. OKCE was sufficient to improve the knee extensor muscle strength.

• The Journal of Korean Physical Therapy
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• 제30권2호
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• pp.54-57
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• 2018

Purpose: Most studies have reported pain in the head-neck and upper-limbs according to smartphone usage, which is related to the proprioception sense in the head and neck, but there have been few studies. Therefore, the aim of this study was identify the adverse effects of the proprioceptive sense in the head-neck according to smartphone usage. Methods: Twenty-seven young adults (male: 9, female: 18) were enrolled in this study. The proprioceptive sense was measured through the joint reposition sense error and neural positon error in the head-neck during smartphone usage for 0, 5, and 20 minutes. The Noraxon MyoMotion system was used to record the joint position angle and neutral positon in the head-neck. One-way repeated ANOVA was used to identify the differences between the three smartphone use durations and the least-squares difference was used as a post hoc test. The data were analyzed using SPSS 18.0 software. Results: The joint reposition sense error and neural positon error in the head-neck were significantly different among the 0, 5, and 20 minutes of smartphone usage (p<0.05). In the post hoc test, the joint reposition sense error and neural positon error showed a significant difference between smartphone use for 0 minute and 5 minute, and between smartphone use for 0 minute and 20 minutes. Conclusion: This study suggests that smartphone use within 5 minutes can have adverse effects on the proprioceptive sense. Therefore, it is necessary to consider the appropriate use time and break time when using smart phones.

• International Journal of Internet, Broadcasting and Communication
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• 제12권4호
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• pp.173-179
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• 2020

In this study, we present the difference in thoracic reposition sense in young people (24.00 ±2.20 years old) with and without habitual slouched posture in two target positions of half flexion and half extension. People with habitual slouched posture (n = 20; 11 men and 9 women) and people without slouched posture (n = 20; 10 men and 10 women) were recruited from three universities. Thoracic spine (T-spine) repositioning errors were measured in two target positions (half flexion and half extension). People with habitual slouched posture showed significantly higher thoracic repositioning error in the extension target position than did people without slouched posture (P<0.05). There was no difference in repositioning error in the flexion target position between the two groups (P>0.05). In conclusion, people with habitual slouched posture show lower T-spine repositioning sense in extension than do people without slouched posture. A rehabilitation program to treat habitual slouched posture, such as postural correction education, should be implemented for individuals with decreased position sense of the T-spine.

• The Journal of Korean Physical Therapy
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• 제26권6호
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• pp.425-429
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• 2014

Purpose: The first purpose of this study was to evaluate whether hand muscle fatigue alters sensorimotor control of the hand in healthy subjects, using hand position sense. The second objective was to assess the repositioning variables during a 7.5-min period after the fatigue protocol. Methods: Participants performed a repeated handgrip movement to induce the fatigue condition as fast as possible, until they could no longer continue. Recordings were performed before (pre-fatigue) and after the completion of the fatigue exercises (immediately: post-fatigue, after a 2.5 min recovery, after a 5 min recovery and after a 7.5 min recovery). Results: The joint reposition test of the MP joint in the post-fatigue condition showed higher reposition errors than the prefatigue condition (p<0.05). Additionally, there was a significant difference in recovery of joint reposition errors after fatiguing exercises of the hand muscle, among groups (p<0.05). Conclusion: The fatigue of the hand muscles affected joint position sense by an alteration of somatosensory and proprioceptive information. Nonetheless, the effect of hand muscle fatigue was short-lived, since joint reposition errors decreased to post-fatigue values after 7.5 min of recovery.

• 융합정보논문지
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• 제9권11호
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• pp.196-201
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• 2019

만성요통환자를 대상으로 근력강화운동과 안정화운동을 적용한 복합운동이 정적균형, 요부 재위치감각인지, 요부통증에 미치는 영향을 알아보았다. 연구방법은 만성요통환자 30명을 복합운동그룹과 안정화운동그룹 등 두 그룹으로 나누워 8주간 주 3회씩 운동을 실시하였다. t-test를 이용하여 그룹전, 후와 그룹간을 비교한 결과 정적균형, 요부 재위치감각인지, 요부통증 모두 두 그룹 운동전, 후에 유의한 결과가 나타났지만(p<.05), 그릅간에 있어서는 근력강화운동과 안정화운동을 적용한 복합운동그릅이 더 효과적인 것으로 나타났다(p<.05). 결론적으로 근력강화운동과 안정화운동을 실시한 복합운동이 요통 뿐만 아니라 다양한 요부의 기능을 향상시키는 것으로 생각된다.

• 시큐리티연구
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• 제25호
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• pp.89-107
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• 2010

이 연구는 만성 경부통을 가진 민간 경비원들을 대상으로 경부 안정화 운동을 실시하여, 목통증, 경부장애지수, 관절가동범위, 근육통증, 재위치감각 변화에 미치는 영향을 비교 분석 하고자 실시하였다. 연구 대상자는 경기 지역 민간경비업체에 종사하는 직원 중 만성 경부통을 호소하는 21명을 대상으로 경부 안정화 운동그룹, 자세교정 운동그룹으로 무선 할당하여, 주3회, 8주간 운동을 실시하였다. 실험 전 후 설문지를 이용하여 목통증과 경부장애지수를 조사하였으며, 관절가동범위, 근육통증, 재위치감각 검사를 실시하여 실험 전 후 변화된 값을 비교 측정하여 다음과 같은 결과를 얻었다. 통증강도와 경부장애지수는 경부 안정화 운동그룹이 실험 후 유의하게 감소하였으며(p<0.05), 관절가동범위, 근육통증, 재위치감각은 경부 안정화 운동그룹에서 실험 후 유의한 향상이 있었으나, 자세교정 운동그룹은 유의한 차이가 없는 것으로 나타났으며(p>0.05), 그룹 간 비교에서도 경부 안정화 운동그룹이 통증, 경부장애지수, 관절가동범위, 근육통증, 재위치감각에서 유의한 향상이 있었다(p<0.05). 본 연구 결과를 볼 때, 만성 경부통을 호소하는 민간 경비원들을 대상으로 경장근과 다열근과 같은 심부근육 강화에 초점을 둔 경부안정화 운동프로그램이 일반적인 자세교정 운동프로그램보다 통증 및 목 기능개선에 효과적인 것으로 나타났다. 따라서 경부 안정화 운동이 만성 경부통을 가진 민간 경비원들의 목 통증 감소와 기능 회복에 효과적이라고 할 수 있겠다.

• PNF and Movement
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• 제8권1호
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• pp.31-39
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• 2010

Purpose : The purpose of this study is to ascertain whether age, body mass index(BMI) and exercise frequency(EF) are correlated with knee joint position sense in healthy women. Methods : Healthy women of 150 who participated in this study were tested knee joint position sense; each reposition error was analyzed according to the age, BMI and EF. Reposition error was measured with a Myrin goniometer. Results : The age groups, BMI groups and EF groups demonstrated significant differences of the knee joint position sense. The older the healthy women are, the higher BMI is, and the lower EF is, the more decreased knee joint position sense has become. Conclusion : The older the women are, the higher BMI is, and the lower EF is, the more decreased the knee joint position sense in healthy women is. Therefore it needs to be considered to require management of obesity and regular exercise for prevention of knee injuries due to decreased joint position sense.