New Manual Test for the Assessment of Hip Abductor Extensibility: a Pilot Study on Precision and Accuracy
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 40
- 试验地点
- 2
- 主要终点
- Precison of visual hip adduction evaluation
研究概览
简要总结
This pilot study aims to evaluate the precision and accuracy of a new manual test for assessing hip abductor extensibility. The iliotibial band (ITB) and hip abductor muscles play a crucial role in lower limb biomechanics, and their flexibility is commonly assessed using the Ober test. However, the Ober test has limitations, including excessive pelvic movement and reliance on qualitative evaluation. This study introduces and validates a novel manual test designed to improve the accuracy and reliability of hip abductor extensibility assessment.
The primary objective is to determine the intra-rater and inter-rater reliability of the new test, measured using the intraclass correlation coefficient (ICC). The secondary objective is to compare the test's accuracy against an inertial motion sensor system and to quantify pelvic movement during the new test. To provide a comparative measure of pelvic motion, a subgroup of participants will also undergo the modified Ober test.
Forty healthy participants (20 males and 20 females) aged 18 to 30 years will be recruited. Each participant will undergo the new test, performed by two independent raters. A subset of participants will also be evaluated using the modified Ober test to assess differences in pelvic movement. Inertial sensors will be used to measure hip adduction angles and pelvic motion. Statistical analyses will include ICC calculations for reliability and paired t-tests to compare pelvic movement between the tests.
This study aims to establish a more precise and objective method for evaluating hip abductor extensibility, which may enhance clinical assessment and management of conditions associated with iliotibial band tension.
详细描述
This study aims to evaluate the reliability and accuracy of a new manual test for assessing iliotibial band (ITB) tension. The current standard for ITB extensibility assessment, the modified Ober test, presents limitations such as excessive pelvic movement and qualitative evaluation. The newly proposed test seeks to address these issues by minimizing extraneous movement and providing a more controlled and reproducible measurement of hip adduction.
Study Design The study follows a repeated-measures design, where intra-rater and inter-rater reliability are the primary outcomes, measured using the intraclass correlation coefficient (ICC). Secondary outcomes include the accuracy of the new test compared to an inertial motion sensor and an analysis of pelvic movement during the new test versus the modified Ober test in a subset of participants.
Participants A total of 40 healthy adults (20 males and 20 females), aged between 18 and 30 years, were recruited. The only exclusion criterion was the presence of symptomatic lower limb conditions that could interfere with the measurement, such as ligament injuries or degenerative joint diseases. No additional selection criteria were imposed, as existing literature does not categorize ITB extensibility based on age, sex, or pathology.
New Test Execution
The new test was originally proposed by Colonna (2012) and is designed to provide a more reliable and precise measurement of ITB tension. The test procedure consists of the following steps:
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 30 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •healthy subjects
排除标准
- •absence of symptomatic lower limb conditions that could impede measurement, such as ligament injuries of the knee or degenerative joint diseases of the hip
结局指标
主要结局
Precison of visual hip adduction evaluation
时间窗: 15 seconds for each evaluation (day 1)
intra-day concordance intra and inter examiners of the visual identification of the degrees of hip adduction by means of intraclass correlation coefficient
Accuracy of visual hip adduction evaluation
时间窗: 15 seconds for each evaluation (day 1)
Concordance intra-day between the visual and instrumental evaluation of the degrees of hip adduction. The instrumental data are obtained using a Xsens inertial sensors, which measure hip adduction angles. The sensor is placed on the shank of the tested leg, providing objective kinematic data. The concordance between the two methods is evaluated with the intraclass correlation coefficient.
次要结局
- Pelvis rotation during hip adduction evaluation(15 seconds for each evaluation (day 1))