Tilt and mobility of the hip girdle in the sagittal and frontal planes in healthy subjects aged 19–30 years

Abstract

BACKGROUND: Disturbances in pelvic girdle tilt can cause compensatory changes affecting postural dysfunctions, and can lead to hip and groin strain changes and back pain. However, we still have no clear information on the normative values of pelvic girdle tilt and mobility. OBJECTIVE: The study aimed to (1) evaluate the position and mobility of the pelvic girdle in the sagittal and frontal planes in asymptomatic adults aged 19–30, (2) evaluate the possible variation of results according to gender and to develop a proposal for normative values, and (3) evaluate whether body mass, height and BMI are related to the magnitude of hip girdle position and mobility. METHODS: The research was conducted in a sample group consisting of 346 men and women using the scaled form of the anthropometric level of the Duometr® The values of position and mobility of the pelvic girdle in the sagittal and frontal planes were analyzed. RESULTS: Differences were noted in the values of the pelvic tilt (p= 0.033) between the men and women. The women showed slightly higher values of posterior range of motion (p= 0.0002) and total range of motion (p= 0.002). The other parameters did not show any significant variation. There was no clear association between body weight, height and BMI and the study variables, except for a small, significant correlation between BMI and posterior pelvic tilt in women (r= 0.175, p= 0.005). In the frontal plane there were no differences in the analyzed variables in terms of gender or side of the body measured. CONCLUSIONS: There was no association between the anthropometric variables and the pelvic girdle tilt and mobility. No size variation by gender was observed in the frontal plane. Slight differences were observed in the sagittal plane. Normative values are proposed.

Correlation between the sacral tilt measured with an inclinometer and the pelvic tilt as a tool for assessing the pelvic position

“…The values for ePT and eST found in females and males are within the range of reference values described by other authors 1,13,23) , so we can assume that there were no particular anomalies here. We found moderate to strong correlations between the investigated pelvic parameters external pelvic tilt and external sacral tilt.…”

“…The shape of the spine is a decisive factor in the analysis and evaluation of human posture. The alignment of the pelvis in the sagittal plane plays an important role in posture and movement 1) , as the anchoring of the sacrum in the pelvic bones means that a forward tilt of the pelvis also biomechanically leads to a forward tilt of the sacrum 2,3) . This results in an increased lordosis of the lumbar spine [4][5][6] , which in turn can lead to an increased thoracic kyphosis as compensation 7) .…”

“…Reference ranges for pelvic forward tilt are known from the literature, which differ slightly between men and women due to differences in pelvic geometry 1,13) . Examination of the pelvic alignment using X-ray methods provides a large number of well-studied parameters such as the sacral slope, the pelvic incidence angle, the pelvic angulation and the pelvic tilt 14) .…”

Asymmetry of the pelvis in Polish young adults

“…During the research, the authors tried to maintain restrictive test conditions to maintain the reliability and repeatability of measurements. Previous studies have shown that measurements using the Duometer show high repeatability under the conditions of tests conducted by an experienced examiner (Bibrowicz and Bibrowicz, 2011a;Bibrowicz et al, 2022).…”

Changes in morphology of the lateral abdominal wall muscles during sagittal tilting in young healthy subjects

“…The exclusion criteria were: (1) any injuries during the 3 months directly preceding the study, and (2) any surgeries that could affect the muscle tone and early termination of the study. Subjects were divided into subgroups according to the body type determined by their BMi (underweight, normal weight, overweight and obese), the value of the pelvic tilt in the sagittal plane (anterior pelvic tilt, neutral pelvis, posterior pelvic tilt) [24], and sex. Among the subjects, 85 had a BMi ratio within the normal range, 54 were underweight and 40 were overweight or obese [25].…”