Relationship Between Pelvic Floor Dysfunctions and Lower Limb Strength and Activation in MS Patients

Trial design

Treatments tested in this trial

• Assessment of pelvic floor dysfunction

  Other intervention Other interventionAn intervention that does not fit one of the standard intervention types.

  Pelvic floor dysfunctions in patients with multiple sclerosis will be assessed using the Pelvic Floor Distress Inventory-20 (PFDI-20). The scale is designed to assess all symptoms related to pelvic floor disorders and the severity of the distress they cause. The PFDI-20 consists of 3 subscales and 20 items, with each item rated on a scale from 0 (none) to 4 (quite a bit). To determine the scale scores, the average of the responses for each item in the subscales is multiplied by 25, resulting in a subscale score ranging from 0 to 100, and a total score ranging from 0 to 300. The Turkish validity and reliability of the scale were conducted by Çelenay et al.

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• The Quality of Life Assessment

  Other intervention Other interventionAn intervention that does not fit one of the standard intervention types.

  The quality of life of the patients will be assessed using the Multiple Sclerosis International Quality of Life Questionnaire. The questionnaire consists of 31 questions and 9 subscales. The lowest score that can be obtained from the scale is 0, the highest score is 124, and a high score indicates a low quality of life. The subscales of the questionnaire include daily living activities, psychological well-being, relationships with friends, symptoms, relationships with family, relationships with the healthcare system, emotional and sexual life, coping, and rejection. The Turkish validation of the questionnaire has been conducted.

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• Core endurance assessment

  Other intervention Other interventionAn intervention that does not fit one of the standard intervention types.

  Core endurance in patients will be assessed using McGill's core endurance tests Trunk Flexor Test: Patients sit at a 60° trunk angle with knees bent, arms crossed, and feet stabilized. Time holding the position is recorded. Trunk Extensor Test: Patients lie prone with the pelvis stabilized, lift the upper body above table level, and hold. Time is recorded until the body drops. Lateral Trunk Test: In a modified side plank (knees bent, elbow support), patients lift hips off the mat. Time is recorded until hips lower or extra support is needed.

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• Hip strength assessment

  Other intervention Other interventionAn intervention that does not fit one of the standard intervention types.

  The assessment of hip strength will specifically focus on the hip adductor and hip external rotator muscle strength. Both muscle groups are considered to be associated with the pelvic floor. Among the hip external rotators, the piriformis muscle functions as an internal stabilizer for the hip joint, while the obturator internus muscle shares fascial connections with the pelvic floor, playing a significant role in pelvic floor function. MR and EMG studies have demonstrated that the levator ani and gluteus maximus muscles are morphologically and functionally connected, and that the contraction of hip adductor and gluteal muscles facilitates the synergistic contraction of pelvic floor muscles. Based on this information, a handheld dynamometer will be used to measure the strength of the two muscle groups planned for evaluation. Measurements will be performed three times, and the average value will be recorded.

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• Tibialis posterior muscle activation

  Other intervention Other interventionAn intervention that does not fit one of the standard intervention types.

  The NeuroTrac Myoplus Pro (Quintet, Bergen, Norway) EMG device will be used for the superficial EMG analysis of the posterior tibialis muscle. During the assessment, single-use 30 x 30 mm round adhesive electrodes will be placed on the reference points. The active electrode will be positioned at the exact midpoint between the tibial tuberosity and the medial malleolus (32,33); the passive electrode will be placed 4 cm distal; and the reference electrode will be placed on the lateral malleolus. The patient will be asked to perform isometric plantar flexion + inversion movement of the ankle against resistance for 10 seconds. The ankle isometric contractions will be performed in 3 repetitions, with a 20-second rest period between contractions. As a result of the assessment, parameters related to the muscle's strength, total work, and resting tone will be recorded in microvolts; the maximal voluntary contraction will be recorded as a percentage.

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• Tibialis anterior muscle activation

  Other intervention Other interventionAn intervention that does not fit one of the standard intervention types.

  The NeuroTrac Myoplus Pro (Quintet, Bergen, Norway) EMG device will be used for the superficial EMG analysis of the tibialis anterior muscle. During the assessment, single-use 30 x 30 mm round adhesive electrodes will be placed on the reference points. The active electrode will be positioned on the muscle body of the tibialis anterior, the passive electrode will be placed 4 cm distal, and the reference electrode will be placed on the lateral malleolus (34,35). The patient will be asked to perform isometric ankle dorsiflexion against resistance for 10 seconds. The ankle isometric contractions will be performed in 3 repetitions, with a 20-second rest period between contractions. As a result of the assessment, parameters related to the muscle's strength, total work, and resting tone will be recorded in microvolts; the maximal voluntary contraction will be recorded as a percentage.

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