The purpose of this study is to examine the validity and reliability of a test designed to measure the pelvic-tilt angle, active posterior and anterior pelvic-tilt angles and ranges of motion, and the total pelvic-tilt range of motion (ROM) in standing position.
The pelvic tilt is the angle between the horizontal plan and a line drawn from the anterior superior iliac spine (ASIS) to the posterior superior iliac spine (PSIS) in quiet standing. It is determined by the muscular and ligamentous forces that act between the pelvis and adjacent segments. A forward rotation of the pelvis, referred to as anterior pelvic tilt, is accompanied by an increase in lumbar lordosis and is believed to be associated with a number of common musculoskeletal conditions, including low back pain. In addition, anterior pelvic tilt has been associated with a loss of core stability, and therefore the degree of pelvic tilt has been used to assess routinely therapeutic procedures that either directly or indirectly affects the standing position of the pelvic tilt in the sagittal plane by Physical therapists.
The effects of the therapeutic procedure outcome measurements in physiotherapy are rarely quantified. Physical therapists need to consider clinical tests designed to provide objective and reliable pelvic-tilt data because such tests would permit documenting change in the pelvic tilt after a specific physical therapy regimen. The effects of therapeutic procedures could then be quantified and changes in the procedures could be made accordingly. Numerous techniques for measuring trunk motions in the sagittal plane have been reported in many researches. The techniques include using radiography, photography, spondylometry, flexible rules that conform to trunk curves, tape measures to record the change in centimeters between skin marks or bony landmarks and variations of goniometry.
Table of Contents
1. INTRODUCTION
2. METHOD
2.1 Subjects
2.2 Testing
2.3 Data analysis
3. RESULTS
4. DISCUSSION
4.1 Clinical Implications
5. CONCLUSION
Objectives and Research Topics
This study aims to evaluate the validity and reliability of the tri-goniometric method for measuring pelvic-tilt angles, including anterior and posterior tilt, as well as the total range of motion in a standing posture to provide clinicians with a reliable, non-invasive assessment tool.
- Validation of the tri-goniometric measurement technique.
- Assessment of intra-rater reliability for pelvic-tilt angles.
- Calculation of pelvic Range of Motion (ROM) in the sagittal plane.
- Comparative analysis of trigonometric measurements against standardized criteria.
- Clinical application of the method for physical therapy monitoring.
Excerpt from the Book
INTRODUCTION
The pelvic tilt is the angle between the horizontal plan and a line drawn from the anterior superior iliac spine (ASIS) to the posterior superior iliac spine (PSIS) in quiet standing. It is determined by the muscular and ligamentous forces that act between the pelvis and adjacent segments (Alviso et al., 1988). A forward rotation of the pelvis, referred to as anterior pelvic tilt, is accompanied by an increase in lumbar lordosis and is believed to be associated with a number of common musculoskeletal conditions, including low back pain (Day J. W et al., 1984). In addition, anterior pelvic tilt has been associated with a loss of core stability, and therefore the degree of pelvic tilt has been used to assess routinely therapeutic procedures that either directly or indirectly affects the standing position of the pelvic tilt in the sagittal plane by Physical therapists. (Sanders G and Stavrakas P, 1981)
The effects of the therapeutic procedure outcome measurements in physiotherapy are rarely quantified. Physical therapists need to consider clinical tests designed to provide objective and reliable pelvic-tilt data because such tests would permit documenting change in the pelvic tilt after a specific physical therapy regimen (Gajdosik et al., 1985). The effects of therapeutic procedures could then be quantified and changes in the procedures could be made accordingly. Numerous techniques for measuring trunk motions in the sagittal plane have been reported in many researches. The techniques include using radiography, photography, spondylometry, flexible rules that conform to trunk curves, tape measures to record the change in centimeters between skin marks or bony landmarks and variations of goniometry.
Summary of Chapters
1. INTRODUCTION: Provides the anatomical definition of pelvic tilt and discusses the necessity for objective measurement tools in physiotherapy to monitor therapeutic outcomes.
2. METHOD: Details the cross-sectional study design, participant selection, specific testing procedures for measuring anterior and posterior tilt, and the mathematical analysis of the data.
3. RESULTS: Presents the statistical findings of the study, including demographic data and the calculated validity and reliability coefficients for the tri-goniometric method.
4. DISCUSSION: Interprets the study results, addresses methodological considerations, and outlines the practical clinical implications of the tri-goniometric measurement technique.
5. CONCLUSION: Summarizes that the tri-goniometric method is a valid and reliable approach for measuring pelvic tilt and total ROM in clinical settings.
Keywords
Trigonometric method, Pelvic motion, Pelvic tilt angle, Physiotherapy, Sagittal plane, Reliability, Validity, Clinical assessment, Range of motion, ASIS, PSIS, Goniometry, Lumbar lordosis, Physical therapy, Musculoskeletal conditions.
Frequently Asked Questions
What is the primary focus of this research?
The research focuses on assessing the validity and reliability of a tri-goniometric measurement technique for evaluating pelvic-tilt angles and range of motion in a standing position.
What are the core thematic fields covered?
The core themes include physical therapy, orthopedic assessment, biomechanics of the pelvis, and the validation of clinical measurement tools.
What is the primary research goal?
The goal is to determine if the tri-goniometric method provides an objective, reliable, and non-invasive way for therapists to track changes in a patient's pelvic alignment and mobility.
Which scientific methods were employed?
The study utilized a descriptive cross-sectional design involving 49 subjects, employing trigonometric calculations based on anatomical landmarks (ASIS and PSIS) to derive angles.
What topics are discussed in the main body?
The main body covers the theoretical background of pelvic tilt, detailed experimental protocols (subject preparation and measurement steps), statistical data analysis, and an evaluation of clinical utility.
Which keywords best describe the study?
Key terms include Trigonometric method, Pelvic motion, Pelvic tilt angle, Reliability, Validity, and Sagittal plane.
How does this method compare to others like radiography?
Unlike radiography, the tri-goniometric method is highlighted as being inexpensive, safe, and easily accessible in standard clinical settings.
Does body type affect the measurement reliability?
The authors suggest that variations in subcutaneous tissue thickness—such as in obese subjects—might influence the accuracy of the palpation and measurement process.
What are the clinical implications for physical therapists?
Clinicians can use this method to quantitatively document pelvic tilt progress and adjust therapeutic regimens for patients with pelvic dysfunction or low back pain.
Are the results considered stable over time?
Yes, the study performed test-retest measurements and found strong reliability for the method in determining pelvic-tilt angles and range of motion.
- Arbeit zitieren
- Thiruvarangan Suwaminathan (Autor:in), T.D.M.S.B Dassanayake (Autor:in), D.B.D.L Samaranayake (Autor:in), 2017, Measuring Pelvic Tilt and Pelvic Range of Motion in Standing Posture. Validity and Reliability of Trigonometric Methods, München, GRIN Verlag, https://www.grin.com/document/373205
