• Title, Summary, Keyword: Knee

Search Result 3,123, Processing Time 0.043 seconds

The Spectral properties of Knee Joint Sounds (슬관절 청진음의 주파수 특성에 대한 연구)

  • Kim, Keo-Sik;Yoon, Dae-Young;Lee, Myung-Gwon;Song, Chang-Hun;Kim, Ji-Sun;Park, Seong-Su;Kim, Jong-Jin;Kim, Ji-Hun;Lee, Gil-Seong;Lee, Min-Hee;Chae, Min-Su;Kim, Min-Ju;Song, Chul-Gyu
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.310-312
    • /
    • 2004
  • The aim of this study was to analyze the characteristics of knee joint sound in frequency domain and classify the knee joint diseases. The spectral analysis of knee joint sounds was performed using LPC(Linear Predictive Coding) and Wigner-Ville distribution. Ten normal subjects and 5 patients with meniscal tearing were enrolled. Each subject was seated on a chair and underwent active knee flexion and extension for 60 seconds. Sampling frequency was 10kHz and electronic stethoscope and electro-goniometer were applied during the knee motion for data collection. The spectral analysis showed 3 peaks in both groups and the difference energy distribution in time-frequency domain. These results suggest that the diagnosis of knee joint pathology using the auscultation could be easier and more correct.

  • PDF

The Effect of Electrical Muscle Stimulation Therapy on Chronic Knee Pain for Aged (노인의 만성 무릎 통증에 대한 전기 근육 자극요법의 적용 효과)

  • Sok, So-Hyune;Kim, Kwuy-Bun
    • Journal of East-West Nursing Research
    • /
    • v.11 no.1
    • /
    • pp.5-11
    • /
    • 2005
  • Purpose: This study is to examine the effect of electrical muscle stimulation therapy on chronic knee pain for aged. Method: Design was randomized one-group pretest-posttest design. Samples were total 15 elderly on 60 years old and above with chronic knee pain. Measures were S-F McGill Pain Questionnaire and Arthritis Impact Measurement Scale for knee pain. Electrical muscle stimulation therapy, experimental treatment was applied on chronic knee pain for 4 weeks, 3 times/week, 15 min/time. Data were collected from half March 2005 to May 2005. Data were analyzed using SPSS PC+ 12 version. Descriptive statistics was used for analysis of general characteristics in sample, and paired t-test was used to analysis the effect of electrical muscle stimulation therapy. Results: After receiving the electrical muscle stimulation therapy chronic knee pain was significantly decreased (t=-29.163, P=.000 in S-F MPQ; t=-37.005, P=.000 in AIMS). Conclusion: Electrical muscle stimulation therapy can be a better effective primary nursing intervention on chronic knee pain for aged in community.

  • PDF

A Study on Osteoarthritis of The Knee And Associated Factors (퇴행성 슬관절염에 관련요인연구)

  • Kang, Jeom-Deok
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
    • /
    • v.14 no.2
    • /
    • pp.34-40
    • /
    • 2008
  • Purpose: We defined osteoarthritis of the knee as knee pain and crepitus in over 40 years old. The usual clinical manifestation include pain, stiffness, crepitus and loss of function. Methods: We studied 40 cases of the degenerative arthritis of knee clinically. The body mass index(BMI, weight(kg)/height($m^2$) was used as a measure of obesity. Pain self assessment scale by Million Index in according to age, occupation, BMI. Results: Gender by pain self assessment scale was 6.5 in male and 6.6 in female(P<0.05). The prevalence rates obese was 40%. Occupation by pain self assessment scale was 7.0 in Sitting and 5.7 in Standing(P<0.05). Prevalence was increased with age by pain self assessment scale in aged 40-69 years. Conclusion: It has been known that the obesity is one of the predispsing factors of the primary degenerative arthritis of knee. A flexion weight bearing view of the knee obtained at $30^{\circ}$ to $40^{\circ}$ of the joint flexion may be more sensitive in assessing damages to hyaline cartilage because the knee flexion is an important component of the stance phase.

  • PDF

The Relationship between Personality, Music Type and MVIC, Power for the Knee Extensor on Inducing Muscle Fatigue (근피로 유발 시 개인 성향과 음악형식에 따른 무릎 폄근의 최대수의적수축력, 일률 간 상관분석)

  • Yoon, Jung-Gyu
    • Journal of the Korean Society of Physical Medicine
    • /
    • v.8 no.4
    • /
    • pp.593-600
    • /
    • 2013
  • PURPOSE: We investigated the relationship between personality, music type and MVIC, power for the knee extensor on inducing muscle fatigue. METHODS: The subjects of this study were 22 healthy students. MVIC(Maximum Voluntary Isometric Contraction) and power in knee extension was measured by PRIMUS RS. Personality types was measured by MBTI(Myers-Briggs Type Indicator) that is an instrument designed to provide descriptive profiles of personality types and preferences. The collected data were analyzed using the independent t-test, MANOVA and Pearson-test. RESULTS: There was no significant differences both MVIC and power of the knee extensor according to personality and music type. The power was significantly increased by increasing the MVIC during a knee extension on inducing muscle fatigue without music type(r= .786~.896). There was no significant correlation both MVIC and power of the knee extensor according to personality. CONCLUSION: There was a positive correlation between power and MVIC during a knee extension on inducing muscle fatigue without music type. There was no significant correlation both MVIC and power of the knee extensor according to personality.

Effects of Contralateral and Ipsilateral Cane Use on Knee Moment (동측과 반대편의 지팡이 사용에 대한 무릎의 모멘트 분석)

  • Lee, Hyun-Ok;Yang, Kyung-Hye;Kwon, Yu-Jeong
    • The Journal of Korean Physical Therapy
    • /
    • v.26 no.2
    • /
    • pp.117-122
    • /
    • 2014
  • Purpose: The purpose of this study was to compare the effects of force of ipsilateral versus contralateral cane usage on knee moments in healthy young adults. Methods: A convenience sample of 10 subjects volunteered for this study. Subjects walked over a force plate under three different conditions; unaided and ipsilateral cane and contralateral cane. Analysis of data on moment of the knee joint and ground reaction force was performed using the OrthoTrak program. Results: Flexion moment of the knee was decreased with the contralateral cane, but increased with the ipsilateral cane compared with normal gait. Extension moment of the knee was decreased with the contralateral cane compared with normal gait(p<0.05) and it was showed a greater decrease with the contralateral cane than with the ipsilateral cane gait(p=0.00). Valgus moment of the knee joint was increased with the ipsilateral cane but decreased with the contralateral cane. Vertical ground peak force was decreased with the ipsilateral cane compared with normal gait (p<0.05). Conclusion: The following conclusions were drawn from our data. Contralateral cane gait is more efficacious for persons with weakness of knee extensors, however, for a patient with varus deformity, the cane should be used in the ipsilateral hand.

Design of Knee-Pelvis Joint in the Biped Robot for Shock Reduction and Gravity Compensation (충격 감소 및 중력 보상을 위한 이족보행로봇의 무릎-골반 관절 설계)

  • Kim, Young-Min;Kim, Yong-Tae
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.64 no.1
    • /
    • pp.136-142
    • /
    • 2015
  • In the paper, a design method of knee and pelvis joint in the biped robot is proposed for shock absorption and gravity compensation. Similarly to the human's body, the knee joints of the biped robot support most body weight and get a shock from the landing motion of the foot on the floor. The torque of joint motor is also increased sharply to keep the balance of the robot. Knee and pelvis joints with the spring are designed to compensate the gravity force and reduce the contact shock of the robot. To verify the efficiency of the proposed design method, we develope a biped robot with the joint mechanism using springs. At first, we experiment with the developed robot on the static motions such as the bent-knee posture both without load and with load on the flat ground, and the balance posture on the incline plane. The current of knee joint is measured to analyze the impact force and energy consumption of the joint motors. Also, we observe the motor current of knee and pelvis joints for the walking motion of the biped robot. The current responses of joint motors show that the proposed method has an effect on shock reduction and gravity compensation, and improve the energy efficiency of walking motions for the biped robot.

Effects of a Thera-Band Exercise Program on Pain, Knee Flexion ROM, and Psychological Parameters Following Total Knee Arthroplasty (슬관절 전치환술 후 세라밴드 운동프로그램이 수술 후 통증, 슬관절 굴곡각도 및 심리적 지수에 미치는 효과)

  • Yun, Ji Yeong;Lee, Jong Kyung
    • Journal of Korean Academy of Nursing
    • /
    • v.45 no.6
    • /
    • pp.823-833
    • /
    • 2015
  • Purpose: The purpose of the study was to investigate the effects of the Thera-Band exercise program following total knee arthroplasty. Methods: The research design for this study was a nonequivalent control group non-synchronized design. Participants were 30 patients for the experimental group and 30 patients for the control group. The experimental group participated in the Thera-Band exercise program in addition to conventional CPM (continuous passive motion) exercise. The control group received conventional CPM exercise only. Outcome measures were pain, knee flexion range of motion, CRP, and psychological parameters (self-efficacy and fear of falling). Data were analyzed using ${\chi}^2$-test, Fisher's exact test, t-test, and repeated measure ANOVA with SPSS/PC version 21.0. Results: There were significant improvement in self-efficacy, and decreases in pain, and fear of falling in the experimental group compared to the control group. However, no significant differences were found between the two groups for CRP and knee flexion ROM. Conclusion: The Thera-Band exercise program gave an additional benefit over the conventional CPM exercise for patients following total knee arthroplasty, and is recommended for use as an effective nursing intervention for patients after total knee arthroplasty.

Case Report : 3 Cases of CPM Combined with Korean Medical Treatment for Knee Joint Rehabilitation (한방 치료를 병행한 슬관절 재활 CPM 증례보고 3례)

  • Ha, Hyunju;Kim, Myeongkyu;Lee, Chiho;Oh, Minseok
    • Journal of Haehwa Medicine
    • /
    • v.25 no.1
    • /
    • pp.15-26
    • /
    • 2016
  • Objectives : The aim of this study was to report the cases of knee injury that are treated with both CPM and Korean medicine. Methods : We treated 3 patients who had knee joint pain and gait disturbance by knee injuries with Korean medicine and CPM treatment. We evaluated the outcomes by checking NRS, ROM, Lysholm knee score, walking state and other symptoms. Results : The NRS, ROM, Lysholm knee score, and other symptoms of 3 patients were improved before they. These results show possibilities of simultaneous treatment of Korean medicine and CPM. But there is a limit that the number of cases is not sufficient, and there was no long-term follow-up after discharge. Conclusions : Simultaneous treatment of Korean medicine and CPM has an effect on knee joint rehabilitation. Further studies are needed to prove the effectiveness of Korean medicine combined with CPM.

A Comparative Analysis on Medical and Korean Medical Service Tendency of Total Knee Arthroplasty Patients Using Patients Sample Data of Health Insurance Review and Assessment Service (슬관절 전치환술 환자의 의과 및 한의과 의료기관 이용 현황 비교 분석: 건강보험심사평가원 표본 데이터를 이용하여)

  • Park, Joo-sung;Kim, Nam-Kwen;Song, Yun-kyung
    • Journal of Korean Medicine Rehabilitation
    • /
    • v.29 no.1
    • /
    • pp.31-39
    • /
    • 2019
  • Objectives To obtain future research basis of Korean Medicine for total knee arthroplasty patient by analyzing medical and Korean Medical service utilization and treatment duration. Methods Data sampling was performed on Health Insurance Review and Assessment Service patient data of 2015 (Confidence level of 97%) to analyze patients' medical and Korean Medical service tendency. Sampling groups were divided into two groups; i) Patients who completed their treatment within 5 months of total knee arthroplasty, ii) Patients who continued their treatment after 5 months of total knee arthroplasty, to investigate patients' medical and Korean Medical service tendency and individual characteristics were carefully monitored. Results It was confirmed that total of 1,655 patients had gone through total knee arthroplasty out of 1,453,486 patients who were gathered for sampling. First sampling group (Patients who completed their treatment within 5 months of total knee arthroplasty) was 287 patients and second sampling group (Patients who continued their treatment after 5 months of total knee arthroplasty) was 385 patients. The proportion of patients who visited Korean Medical service in first sampling group was lower than that of second sampling group. Conclusions It was confirmed that medical and Korean Medical service and cost consumed by second group (Patients who continued their treatment after 5 months of total knee arthroplasty) was higher than that of first group (Patients who continued their treatment after 5 months of total knee arthroplasty). It is highly recommended to continue with further study for efficient medical and Korean Medical service and reduced cost.

A Study on the Effects of Quadriceps Femoris Flexibility Exercise on the Functional Ability of the Patients with Degenerated Arthritis (대퇴사두근 유연성 운동이 퇴행성 슬관절염 환자의 기능활동정도에 미치는 영향)

  • Hwang, Don-Young;Lee, Wan-Hee
    • Journal of Korean Physical Therapy Science
    • /
    • v.9 no.3
    • /
    • pp.67-75
    • /
    • 2002
  • The purpose of this study was to evaluate the effects of quadriceps femoris flexibility exercise which would improve the degree of knee flexion range of motion, extension torque, and the activities of daily living (ADL) in elderly subjects with degenerative knee arthritis. Fourteen elderly patients (two men and twelve women) with degenerative knee arthritis participated and had a quadriceps femoris flexibility exercise intervention program in this study. The mean age of the patients was 70.00 years for men and 71.16 years for women. This study carried out the experimental study of one group pretest-posttest design, which evaluated the degree of knee flexion range of motion, extension torque, the ADL ability of the patients before and after applying the exercise intervention for five weeks. The results of this study are as follow: 1. The knee flexion ranges of motion of the patients were measured before and after the intervention and the ranges increased significantly both in the left and right knee flexion range of motion (p < 0.05). 2. The peak torque of the knee muscle, the peak torque/body weight, and average power of the patients showed significant increases in both in the left and right knee after applying the intervention (p < 0.05). 3. The intervention produced a significant reduction in pain of the patients (p < 0.05). Their functional activities of ADL improved significantly compared with before the intervention (p < 0.05). It has been shown that the quadriceps femoris flexibility exercise intervention program increased significantly the knee flexion range of motion, and extension torque, as well as an increase in performance of functional activities of ADL of the patients. Thus, the quadriceps femoris flexibility exercise should be considered as one of the therapeutic exercises for the elderly patients with degenerative knee arthritis applied.

  • PDF