Effects of calcaneal eversion on three-dimensional kinematics of the hip, pelvis and thorax in unilateral weight bearing

Abstract

Understanding the kinematic chain from foot to thorax will provide a better basis for assessment of malalignment of the body. The purpose of this study was to investigate the effects of induced calcaneal eversion on the kinematics of the hip, pelvis and thorax in three dimensions under unilateral weight-bearing. Twenty-eight healthy males were requested to stand on one leg under three conditions: normal (standing directly on the floor), and on wedges producing 5° and 10° calcaneal eversion. Recorded kinematic parameters included the angles of the hip joint, pelvis, and thorax in three dimensions. Eversion induced by wedges produced significant increases in hip flexion, hip medial rotation, pelvic anterior tilt, and thoracic lateral tilt and axial rotation to the standing side. In the frontal plane, pelvic lateral tilt to the standing side was decreased in 5° eversion condition compared with normal condition; conversely, it was increased in 10° eversion condition compared with 5° eversion condition. Arch height was negatively correlated with change in thoracic axial rotation to standing side from the normal to 10° eversion (r=-.528, p<.01). We concluded that induced calcaneal eversion affects the three-dimensional kinematics of the thorax through the hip joint and the pelvis.

Changes in lower extremity alignment in standing position using a foot plate

“…With use of a wedge to keep the foot fixed in inversion and eversion, a research was done to observe the changes in the body. Although the results were not found to be statistically significant in the amount of pelvic tilt, a decreasing trend was confirmed [9]. In a study with a wedge placed in the front, rear, medial and lateral sides to compare the movements of the leg, the subtalar joint moved 6 times more with a wedge placed in the medial and rear than without use of a wedge, and with a wedge on the medial and rear in the sagittal plane, the ankle and hip joint angles in the frontal plane, the trunk movement moves 2-3 times more than without use of a wedge [10].…”

“…A study by Khamis et al [13] had found the following results of the measurements with changes in alignment from In a previous study using a fixed wedge, the pelvis was tested for associated correlation with other LE structures. With use of the wedge and heel abducted, the hip abduction angle and pelvic anterior tilt increased [3,9]. Eslami et al [10] completed a study using a foot wedge to observe the pelvis and trunk angle variability during single-limb stance and found the anterior tilt in the horizontal plane to have a change in 0.052 o , however was not significant.…”

“…The degree of internal rotation of the leg and talus bone, when the heel comes in contact with the ground while the subtalar joint is in pronated has not been confirmed in previous studies [7]. In a previous study, muscle activity was significantly reOriginal Article , when the heel abduction angle is increased, the movement of pelvic anterior tilt as well as the abduction angle of the hip was increased with leg alignment analysis [9]. In a study that used a footplate in 10 o of inversion and eversion, the tibiofibular and tibiocalcaneal angles increased when the foot was in inversion [6].…”

Quality Assurance Study on (Physio)therapy According To the Spiraldynamik® Concept for Treating Patients with Knee Complaints

“…There are patient reports of people with knee disorders due to pes valgus and related restrictions in tarso-metatarsal joint movement [3]. There is additional evidence that muscle weakness in the hips and related movement patterns can have a negative impact on the biomechanics of the knee joint [4,5]. …”

“…All patients were given (physio)therapy based on the common Spiraldynamik ® therapeutic approach [5]. A total of 48 patients with knee disorders were analyzed (mean age: 52.7 years, min: 19 year, max: 89 year).…”