Joint Position Sense in Individuals With Anterior Knee Pain
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 25
- 试验地点
- 1
- 主要终点
- Weight Bearing JPS during single leg squatting
研究概览
简要总结
Introduction Anterior knee pain (AKP) commonly affects physically active as well as sedentary individuals and the aetiology remains unknown. Altered joint position sense (JPS) impacts accurate motor action and knee joint stability. It is unclear whether people with AKP have altered JPS. The aim of this study was to investigate the JPS of individuals with AKP.
Methods A descriptive cross-sectional design was used to measure JPS in twenty-five participants with unilateral or bilateral AKP. The Vicon 3D motion analysis system was used to assess JPS by means of active joint position sense testing during single leg squat and active knee extension in sitting. Target angles were self-determined based on each participant's capabilities. The absolute error (AE) was used as the main outcome measure. Impaired JPS was classified as an AE equal to or greater than five degrees.
详细描述
Research Design CAF Human motion analysis Unit, Faculty of Medicine and Health Sciences, Stellenbosch University. Ethical approval was obtained from the Health Research Ethics Committee of Stellenbosch University under reference number S16/10/197. This study was conducted as part of a master's thesis project (Rhode 2018).
Sampling and Recruitment Sample recruitment was aimed to attract individuals with AKP from different socio-economic backgrounds, sporting codes and areas. Letters of invitation were sent to various universities, sports clinics, physiotherapy practices and sporting clubs.
Study Procedure Measurement Tools Vicon 3D motion analysis system The eight-camera Vicon T-20-series motion analysis system (Vicon Motion Systems Ltd., Oxford, UK) with Nexus 1.7 software was used to assess joint position sense (JPS). The Vicon has demonstrated high accuracy and reliability and has been shown to have less than a 1.5-degree error (Ehara et al 1997). Retro-reflective markers with a diameter of 9.5mm were used. Dynamic calibration was performed according to standard laboratory protocol, and the Vicon T-wand was placed on a 3D Bertec force plate (Bertec Corporation Ltd.), which is synchronized with the Vicon motion analysis system.
H-Frame An H-frame was constructed based on a study by Clark et al (2016). The function of the H-frame was that of a range of motion (ROM) guide when establishing the target angle (TA) for participants during the test trial. The H-frame was positioned so that the rubber band (crossbar) makes contact with the distal part of the patella during single leg squat (SLS) and that the crossbar touches the skin overlying the anterior ankle joint line during active knee extension (AKE). The H-frame was removed during the test procedure.
Kujala/anterior knee pain scale (AKPS) questionnaire The AKPS is a 13-item knee functional questionnaire. This scale is scored out of 100, with a higher score indicating less disability. The AKPS demonstrated high reliability and responsiveness in a population of patients with AKP (Watson et al 2005).
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 14 Years 至 40 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Participants who adhered to the criteria listed below were considered for inclusion:
- •Individuals aged between 14 and 40 years
- •Insidious onset of clinical signs and symptoms of AKP (more than 3 months duration)
- •Symptoms were provoked by prolonged sitting, squatting, stair-climbing and/or running.
- •Participants needed to comply with the AKP screening tool and the diagnostic checklist (Leibbrandt & Louw 2017)
排除标准
- •Participants were excluded if they presented with the following:
- •AKP had resulted from a traumatic event such as a motor vehicle accident
- •Previous knee surgery or injuries
- •Clinical evidence of other knee pathologies
- •If they were experiencing any other lower extremity injuries
结局指标
主要结局
Weight Bearing JPS during single leg squatting
时间窗: Measured six times on the same day
Active angle reproduction using Vicon movement analysis system
Non-weight bearing JPS during active knee extension
时间窗: Measured six times on the same day
Active angle reproduction using Vicon movement analysis system
Usual pain: Visual analogue scale (VAS)
时间窗: Measured at recruitment (onset of research) and during testing procedures (active knee extension and single leg squatting)
Visual analogue scale pain measurement ranging from 0 (no pain) to 10 (worst possible pain)
Anterior knee pain scale (AKPS)
时间窗: Measured on the day of the assessment prior to motion analysis procedures
Anterior knee pain specific scale to measure functional ability. Score is out of 100. a score of 100 indicates no functional impairment.
Lower extremity functional scale (LEFS)
时间窗: Measured on the day of the assessment prior to motion analysis procedures
A scale out of 80 to measure functional ability as a result of lower extremity injury. A score of 80 indicates no functional impairment.
次要结局
未报告次要终点
研究者
Dominique Leibbrandt
Dr Dominique Leibbrandt (PhD Physiotherapy), Postdoctoral Researcher in Faculty of Health and Rehabilitation Sciences
University of Stellenbosch