Lower Extremity Problem Clinical Trial
Official title:
Investigation of the Effects of Different Subtalar Joint Pronation Amounts on Lower Extremity Anatomical Measurements, Jump Performances and Postural Stability in Healthy Individuals
The lower extremity consists of segments that can be affected by the relative position of each other. Deviation of one segment from its normal alignment in the lower extremity also affects the alignment of other segments. The hip joint can affect the frontal plane alignment from proximal to distal, while the foot and ankle complex can also affect it from distal to proximal. Increased subtalar joint pronation in the kinetic chain from distal to proximal; is associated with decreased dorsiflexion angle and increased frontal plane projection angle. It has been shown that ankle dorsiflexion limitation causes changes in the biomechanics and kinematics of landing after jumping, but no study examining the effect of foot pronation on jump tests has been found in the literature. Since the foot is located at the most distal point and acts as a support base for the kinematic chain, the smallest dynamic change in the foot affects the balance of the whole body. Due to foot pronation, changes in the sole contact surface may make it difficult for the foot to adapt to the ground, balance and postural stabilization may be adversely affected, and an increase in the workload of the muscles around the joint may be observed. In another study, it is mentioned that there is limited evidence about the effect of foot posture on postural stability. Although there are studies in the literature examining the effects of subtalar joint pronation on lower extremity alignment and postural stability, studies need to examine the effects of different subtalar joint pronation amounts on lower extremity alignment, jumping performance, and postural stability. Our study will contribute to the literature with this aspect.
Status | Recruiting |
Enrollment | 48 |
Est. completion date | May 30, 2024 |
Est. primary completion date | April 30, 2024 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 40 Years |
Eligibility | Inclusion Criteria: - Being between the ages of 18-40 - Pain, difficulty in walking and loss of function, etc. not having complaints - Foot posture index value should be between 6-12 - Not having any orthopedic disease - Not having visual or hearing impairment - Not having been involved in any physical therapy program in the last 6 months. - Not having undergone any surgical procedure on the lower extremity - Not using analgesic medication within the specified treatment days throughout the research period. Exclusion Criteria: - Having a lower extremity congenital anomaly - Having a history of lower extremity surgery or planned lower extremity surgery within the next 12 months - Having any signs of pain in the lower extremities - Having ligament hyperlaxity - Having a history of tendon or cartilage injury - Having serious illnesses - Predominant knee pain from other knee structures, hip or lumbar spine - Having a history of using any shoe insert-orthosis-insoles or knee injection in the last 3 months - Having any neurological or systemic inflammatory arthritis disorder (neurological involvement that affects movement) |
Country | Name | City | State |
---|---|---|---|
Turkey | Bahcesehir University | Besiktas | Istanbul |
Lead Sponsor | Collaborator |
---|---|
Bahçesehir University |
Turkey,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Postural Stability | Static and dynamic balance assessments The Biodex Balance System (BDS) (Biodex Medical Systems Inc., Shirley, New York, USA) will be used. Measurements will be made with bare feet. Each test will last 20 seconds and will be made in 3 measurements with 10-second rest periods. During the measurement, individuals will be asked to stand on their weight-bearing knees in 15° flexion, their non-weight-bearing contralateral knees in 90° flexion, and to look forward by crossing their arms at chest level. In dynamic balance evaluation, the difficulty level of the test will be set to 4. | Baseline | |
Secondary | Frontal Plane Projection Angle | During the frontal plane projection angle (FPPA) measurement, a straight line will be drawn from the anterior superior spina iliaca along the femur to the midpoint of the patella, and the midpoint of the ankle will be determined as the reference point by a straight line drawn from the midpoint of the patella. Participants will stand with their feet aligned in the sagittal plane and their arms crossed across their chests. By prior instruction, subjects will be asked to squat up to 60º knee flexion in a controlled manner without losing their balance, before returning to the starting position. Digital recordings of the frontal plane will be made while individuals perform a single-leg squat test at 60º knee flexion 3 times. The FPPA degree is measured from the medial aspect of the knee and calculated by subtracting 360. FPPA of 195° and above will be considered pathological. | Baseline | |
Secondary | Foot and Ankle Ability Measurement | The Foot and Ankle Ability measurement scale consists of daily living activities and sports subheadings. The scale includes 29 items scored between 0 and 4. Standardized answer options are answered using five-point Likert options ranging from 0 (I cannot do it) to 4 (No difficulty). From the participants; They are asked to mark the activity as no difficulty (4 points), mild difficulty (3 points), moderate difficulty (2 points), extreme difficulty (1 point), cannot do (0 points) or N/A (not applicable). High scores; It shows more functional ability. | Baseline | |
Secondary | Navicular Drop Test | The navicular drop test (NDT) is a clinical method for assessing the mobility of the medial longitudinal arch (MLA). The extent of navicular subsidence is assessed to determine the flexibility of the MLA and the position of the navicular with and without transfer of body weight. To assess navicular drop, the subtalar joint will be positioned in neutral position and the height of the navicular will be measured in non-weight bearing position. Then the measurement will be repeated in weightbearing position. The height difference between the two measurements in sitting and standing is recorded as the NDT value. Values more than 10mm is accepted as pathological. | Baseline | |
Secondary | Weight bearing lunge test | Weight-bearing lunge test (WBLT) is frequently used in individuals with ankle instability in order to determine dorsiflexion normal joint movement. During WBLT the participant puts their hands on the wall and takes one leg forward and the other leg helps balance behind. The maximum distance that the knee touches the wall is recorded without allowing the heel of the front foot to lose contact with the ground. | Baseline | |
Secondary | Countermovement jump test without arm swing | In the starting position of the test, participants stood in the middle of the Optojump device with their feet hip-width apart. With hands on hips, participants were asked to squat until their thighs were parallel to the ground and then immediately jump up. Bending the hips and knees before landing; Participants were instructed to keep their hands on their hips and legs in extension, maintaining this position during the jump and even when they landed, as this would increase flight time and reduce the accuracy and reliability of the results. During testing, all participants wore sneakers. The test was repeated 3 times and the best value was recorded. | Baseline |
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