• Title, Summary, Keyword: Knee

Search Result 3,123, Processing Time 0.074 seconds

The Optimized Knee Bolster Structure for US-NCAP (북미 강화NCAP 무릎상해 대응용 최적 니볼스터 구조 연구)

  • Paek, Chang In;Choi, Kyu Sang;Jung, Jae Yoon
    • Journal of Auto-vehicle Safety Association
    • /
    • v.4 no.1
    • /
    • pp.18-22
    • /
    • 2012
  • The US-NCAP was rated by the head and chest injury, but the new US-NCAP requires various dummy injury parts such as head, neck, chest, and femur. So, new restraint systems are needed. Particularly, the knee bolster must meet both unbelted and belted test condition requirements. This paper analyzed the dummy response of both test condition and suggested a knee bolster F-D requirement as well as a new knee bolster structure.

The Research of Pain and Functional Disability Assessment Scales for Knee Joint Disease (슬관절의 통증과 기능장애의 평가도구에 관한 연구)

  • Jung, Chan-Yung;Kim, Eun-Jung;Hwang, Min-Seop;Cho, Hyun-Seok;Kim, Kyung-Ho;Lee, Seung-Deok;Kim, Kap-Sung
    • Journal of Acupuncture Research
    • /
    • v.27 no.2
    • /
    • pp.123-142
    • /
    • 2010
  • Objectives : The knee pain is the main reason of getting acupuncture treatment. In order to have confidence in the results of a study, it is necessary to establish that questionnaire is both valid and reliable in questionnaire related study. The aim of this study was to review the instruments that are currently in sue for assessing the knee joint. Methods : A literature study was performed to choose appropriate scales for assessment for pain and the function of the knee. Theoretically based scales were selected for review. Therefore, 18 scales for knee and 9 scale for pain were reviewed. the status of scales involved in knee treatment of acupuncture throughout several countries was evaluated. Results & Conclusion : Lysholm Knee Scoring Scale, Cincinnati knee rating system(CKRS) are adequate for ligament injury in knee. International Knee Documentation Committee scoring system(IKDC) may become a publication requirement for journals in view of the international standing of the committee. The available outcome measure for use in osteoarthritis are Western Ontario and McMaster Universities Osteoarthritis Index(WOMAC), Lequesne Functional Severity Index(LFI) and Knee Injury and Osteoarthritis Outcome Score(KOOS), and in rheumatoid arthritis are McMaster-Toronto Arthritis patient function preference questionnaire(MACTAR), Quality of Life-Rheumatoid Arthritis Scale(QoL-RA Scale). Visual analog scale(VAS), verbal rating scale(VRS) are commonly used for the standard pain scale. For long term follow-up study The Medical Outcomes Study Short Form-36(SF-36), Arthritis Impact Measurement Scales(AIMS), Health Assessment Questionnaire(HAQ) should be included. Each measurement has its own composition and characteristics. Their validity, reliability, responsiveness and practical characteristics were already evaluated. We found 20 domestic and 28 overseas papers about knee treatment using acupuncture assessed with knee scales.

The Relationships Between Valgus Collapse Knee Position and Quadriceps Activity During a Single Limb Step Down in Female Subjects (젊은 여성의 한쪽 다리 스텝다운 동작 시 슬관절 외반 정도와 대퇴사두근 근활성도 간의 상관관계)

  • Lee, Se-Hee;Moon, Young;Song, Ji-Hyun;Kim, Suhn-Yeop;Jang, Hyun-Jeong
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
    • /
    • v.18 no.2
    • /
    • pp.41-47
    • /
    • 2012
  • Background: This study was designed to investigate the correlation between electromyography (EMG) activities in the vastus medialis oblique (VMO) vs vastus lateralis (VL) activity ratio and the valgus collapse knee position while stepping down. Methods: Twenty healthy women volunteered to participate in this study. We measured the frontal-plane projections of the knee valgus angle, knee valgus distance, and hip adduction angle by using a digital camcorder. After 3 repetitions of the step down (dominant side) exercise, the findings of the static and dynamic phases were analyzed. EMG activities data of the VMO:VL activity ratio were recorded during the step down exercise and were normalized to the maximal voluntary isometric contraction (MVIC) of the quadriceps. A paired t-test was used to compare the findings of the static and dynamic phases. We analyzed the Spearman's rank order correlation coefficient between the and VMO:VL ratio. Results: Hip adduction angle, knee valgus angle, VMO activity, VL activity, VMO:VL activity ratio were statistically higher in the dynamic phase than in the static phase (p<.05). Frontal-plane projections of knee valgus angle were significantly correlated with hip adduction angle (r=.459, p<.05) and knee valgus distance (r=.505, p<.05). However, the EMG activity ratio of the VMO and the VL did not show a significant change during step down exercise with respect to hip adduction angle (p=.875), knee valgus angle (p=.618), and knee valgus distance (p=.701). Conclusion: The results from this study indicate that frontal-plane projections of knee valgus angle were associated with hip adduction angle and knee valgus distance. On the basis of these results, the knee valgus distance may be used to determine the valgus collapse knee position while stepping down.

  • PDF

A Systemic Review of Korean Medical Treatment Combined with Continuous Passive Motion Therapy on the Knee Joint Postoperative Rehabilitation (슬관절 수술 후 재활에 대한 Continuous Passive Motion 치료와 한의 병행치료의 체계적 문헌 고찰)

  • Ha, Hyun Ju;Oh, Min-Seok
    • Journal of Korean Medicine Rehabilitation
    • /
    • v.27 no.3
    • /
    • pp.33-45
    • /
    • 2017
  • Objectives The objective of this study is to report the evidence that continuous passive motion (CPM) therapy combined with Korean Medicine is effective for knee injuries. Methods We searched 2 Korean medical electronic databases, and 2 Chinese electronic databases to find randomized controlled clinical trials (RCTs) that treat knee injuries with Korean Medicine combined with CPM therapy. We selected studies by screening. We extracted data from selected RCTs, and analyzed RCTs by using Cochrane's Risk of bias criteria. Results 386 studies are searched, and 7 RCTs are selected. According to the study, several kinds of Korean Medicine such as hydrotherapy, decoction, acupuncture, moxibustion, and manual therapy are used with CPM therapy for the knee joint postoperative rehabilitation. We found the encouraging evidence that Korean Medicine and CPM combined therapy is more effective than single CPM therapy by alleviating pain, increasing range of motion, and improving knee function, etc. However, the risk of bias in most RCTs was judged to be uncertain. Conclusions Combination of Korean Medicine and CPM therapy can compensate the defect of single CPM therapy, and promotes the recovery of knee joint function.

The Factor of Knee Joint Function in Women (여성의 무릎관절 기능 영향요인)

  • Lee, Hyun-Ok;Yang, Kyung-Hye
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
    • /
    • v.16 no.2
    • /
    • pp.67-75
    • /
    • 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.

  • PDF

A Case Study Of Patients With Knee Joint Pain Treated With Rubiae Radix Pharmacopuncture (천초약침 치료를 병행한 슬관절 통증 환자에 대한 증례 보고)

  • Lee, Jin-Bok;Cho, Yi-Hyun;Im, Jeong-Gyun;Kim, Jong-Uk;Yook, Tae-Han;Song, Beom-Yong
    • Journal of Pharmacopuncture
    • /
    • v.13 no.3
    • /
    • pp.109-120
    • /
    • 2010
  • Objective : This study was to investigate the clinical effect of Rubiae Radix pharmacopuncture on knee joint pain. Methods : The patients were treated by Rubiae Radix pharmacopuncture, Acupuncture, herbal medicine. To evaluate the effect of the treatment, The patient's symptoms were assessed by Visual Analogue Scale(VAS) Score, Knee injury and osteoarthritis outcome score(KOOS) and physical examinations. Results : In all cases, the pain was reduced significantly according to improvement of VAS score, KOOS and active Range Of Motion(ROM) of knee joint. VAS score and KOOS of all cases were decreased. In two cases, ROM of knee joint has improved. But in one case, ROM of knee joint has still been restricted. But there are no noticeable changes in physical examinations. Conclusion : These results suggest that Rubiae Radix pharmacopuncture might be an effective method to treat patients with knee joint pain. But, It's necessary to have more observations and experiments with Rubiae Radix pharmacopuncture.

Influence of Anticipation on Landing Patterns during Side-Cutting Maneuver in Female Collegiate Soccer Players

  • Park, Eun-Jung;Lee, Jung-Ho;Ryue, Jae-Jin;Sohn, Ji-Hoon;Lee, Ki-Kwang
    • Korean Journal of Sport Biomechanics
    • /
    • v.21 no.4
    • /
    • pp.391-395
    • /
    • 2011
  • To investigate the anticipatory effect on landing patterns during side-cutting maneuver, thirteen healthy female elite college soccer players participated in this study. Three-dimensional knee kinematics, effective mass and correlation between both these were measured and analyzed using a motion analysis and force plates. Each testing session included anticipated tasks, $45^{\circ}$ side-cutting tasks (AC), followed by a set of unexpected side-cutting (UC) in a random order. Knee flexion/extension, valgus/varus and internal/external rotation angles and effect mass were compared by using paired t-test. Also, correlation analysis was performed to identify the relationship between knee angles and effective mass. Effective mass during UC was greater than that during AC. Effective mass and maximum knee flexion angle were positively correlated during AC and not during UC. Based on the relationship between effective mass and knee flexion angle in AC, shock absorption can be controlled by knee joint flexion in pre-predicted movement condition. However, effective mass can not be controlled by knee flexion in UC condition. The unexpected load affects were more irregular on the knee joint, which may be one of the injury mechanisms of anterior cruciate ligament (ACL) in female soccer players.

The Pitch Perturbation of Knee Joint Sounds according to Angle movement (슬관절음의 각도별 피치 변동에 대한 분석)

  • Kim, Keo-Sik;Yoon, Dae-Young;Seo, Jeong-Hwan;Kim, Kyeong-Seop;Song, Chul-Gyu
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.307-309
    • /
    • 2004
  • In this study, we have evaluated and classified arthritic pathology using the auscultation of knee joint sound. Six normal persons and 11 patients with knee problem were enrolled. Six patients of Group 1 needed an orthopeadic surgery because of the ruptured wounds of meniscus or ACL(Anterior Cruciate Ligament) and 5 patients of Group 2 diagnosed as osteoarthritis. Subjects were taken knee flexion and extension being seated in a chair for 20 seconds which repeated 3 times. Also subjects stood up and sit down repeatedly in the same way. After the movement of knee was divided into 18 degrees, the pitch perturbation according to partial degrees was analyzed and the DTW(Dynamic Time Warping) method was applied for normalizing a time-axis and unpaired t-test was used for statistic results among groups. As a result, the amplitude and frequency perturbations of group 2 was higher than group 1(p<0.05) and showed a characteristic 'w-shape' in angle-amplitude graph. These results suggest that the analysis of knee joint sound might assist in early diagnosis of knee joint disease.

  • PDF