Low Back Pain Developer.
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Body Mass Index (BMI) between 18 and 30 Not being in the menstrual cycle during testing sessions. No engagement in a job requiring standing continuously for more than 1 hour at a single location in the past month. No dizziness or balance issues experienced in the 12 months prior to participating in the research. No history of back pain requiring medical intervention, causing absence from work or school, or resulting in changes in daily activities for more than 3 days. No injuries or surgeries involving the spinal column or the lumbar-pelvic area. No participation in physical or sports activities that could affect the research results.
Exclusion criteria
Exclusion criteria: Reluctance to continue participating in training sessions. Absence from test sessions. Feeling pain during the execution of tests in the test sessions. Reporting pain at the start of the prolonged standing protocol. Participation in exercises or activities that could alter the research results.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Core muscle endurance score. Timepoint: Before the start of the intervention, the end of the eighth and the end of the exercise protocol. Method of measurement: McGill endurance test – the assessment consists of three tests: maintaining trunk flexion at a 60-degree angle, maintaining trunk extension in a horizontal alignment, and performing a side bridge on both sides. Participants are asked to hold each of these positions correctly for as long as they can. The test is stopped when the individual deviates from the proper alignment. Scoring is based on the total time the individual successfully maintains the correct posture in all four specified positions.;Position-Reposition test score. Timepoint: Before the start of the intervention, the end of the eighth and the end of the exercise protocol. Method of measurement: The central proprioception test is assessed through a repositioning test. This test evaluates the accuracy of pelvis, lumbar, and trunk repositioning after a dynamic activity that moves the spine from full flexion to extension in a seated position.In this test, the subject sits with 85-degree knee flexion, feet hip-width apart, and arms relaxed alongside the torso. Then, the spine is placed in a neutral position, and the subject is asked to perform three cycles of trunk flexion and extension at their preferred speed before returning the spine to the neutral position.Repositioning changes in the sagittal plane are recorded using a standard camera placed parallel to the subject’s lumbar area. The assessment is based on four criteria: pelvic position, lumbar spine curvature, thoracic spine curvature, and thoracic tilt.For scoring, the recorded video is reviewed once; then, an image of the reference neutral position is compared with an image of the neutral return after three movement cycles. The first two factors are scored from 0 to 3, while the last two factors are scored from 0 to 2. The total test score is 10 points, with 10 representing the highest poss | — |
Secondary
| Measure | Time frame |
|---|---|
| Active hip Abduction test. Timepoint: Before starting the exercise, at the end of the exercise protocol. Method of measurement: Active Hip Abduction Test- Initially, the active hip abduction test is conducted for preliminary screening and to determine susceptible and non-susceptible groups. This test evaluates an individual's ability to maintain pelvic and trunk alignment during lower limb movement in an unstable position.To perform this test, the individual lies on their side, ensuring that the trunk, pelvis, and knees are aligned. While the pelvis is perpendicular to the frontal plane and the knees are fully extended, the individual is asked to perform a hip abduction movement. The test is scored from 0 (complete pelvic control in the frontal plane) to 3 (severe instability in maintaining pelvic position in the frontal plane).;Prolonged Standing Protocol. Timepoint: Before starting the exercise, at the end of the exercise protocol. Method of measurement: This protocol is used to identify low back pain developer individuals. Pain levels are reported using VAS scores throughout the protocol to determine susceptibility.During the implementation of this protocol, participants must stand for 120 minutes in a designated workspace measuring 0.46 meters by 0.50 meters, marked on the ground. A height-adjustable desk is placed in front of the participant, and they are instructed to stand in the specified area in their usual manner—without leaning their torso on the desk or crossing their legs—while performing light tasks such as arranging small objects or assembling a puzzle. Participants report their perceived pain level in the lumbo-pelvic region using VAS (100 mm) every 15 minutes. The VAS cutoff point for distinguishing susceptible individuals from non-susceptible individuals is 10 mm. Studies indicate that the minimum and maximum time for pain onset ranges between 15 to 42 minutes. | — |
Countries
Iran (Islamic Republic of)
Contacts
Tehran University