The Effect of Subtalar Joint Antipronation Taping on the Dynamic Knee Valgus in Female Volleyball Players with Low Medial Arch

NCT06752109 | Completed

• 1 other identifier: DTape01
• Study Type: interventional
• Target: 32
• Locations: 1 country
• Sites: 1

Brief Summary

This study aims to investigate the biomechanical mechanisms of dynamic knee valgus and the impact of subtalar pronation, particularly due to decreased medial longitudinal arch, on knee injury risk, highlighting the importance of prevention and intervention strategies for athlete health.

Conditions

Anterior Cruciate Ligament Rupture

Keywords

Pes planus; ACL; Dynamic Tape

Outcome Measures

Primary Outcomes (3)

• Single Leg Squat Test

  In this test, athletes were instructed to perform a single-leg squat with their hands on their waist, maintaining balance for as long as possible, preferably for 5 seconds. Only trials that reached the required minimum flexion angle and maintained balance were considered valid. Three valid attempts were performed. During the tests, video recordings were made from both the front and the side. The footage was analyzed using the Microsoft OptoJump® Next program with a 2D analysis method to measure knee flexion and valgus angles.

  Pre-taping and within 1 hour after taping

• Single Leg Landing Test

  For this test, each athlete was asked to step off a 30 cm high box and extend the measurement leg forward to drop downward. The maximum knee valgus and flexion angles at the end of the drop were measured using two camera recordings, one from the front and one from the side. During the tests, video recordings were made from both the front and the side. The footage was analyzed using the Microsoft OptoJump® Next program with a 2D analysis method to measure knee flexion and valgus angles.

  Pre-taping and within 1 hour after taping

• Vertical Drop Jump Test

  In this test, athletes were instructed to stand with their feet shoulder-width apart on a 30 cm high box. They were then asked to jump into the square area in front of the box and immediately jump as far as possible using their arms for assistance. The test was completed once the athlete had made three successful jumps. The average of the three jumps was recorded. During the tests, video recordings were made from both the front and the side. The footage was analyzed using the Microsoft OptoJump® Next program with a 2D analysis method to measure knee flexion and valgus angles.

  Pre-taping and within 1 hour after taping

Study Arms (2)

Intervention

EXPERIMENTAL

Dynamic Tape

Other: Antipronation Taping

Control

SHAM COMPARATOR

Sham Group

Other: Sham

Interventions

Antipronation Taping OTHER

Before applying the tape, its length was measured by passing it over the areas on the foot where it would be applied. The tape was first attached to the medial side of the big toe, with tension in the direction of flexion and abduction of the toe. The ankle was then positioned in full plantar flexion. The tape was applied from the medial side of the foot towards the heel, wrapping around it, and then directed towards the sole. While the foot was in an inversion position at the navicular level, the tape was applied with maximum tension from medial to lateral and brought back to the sole. The remainder of the tape, with maximum tension, was applied from the sole to the dorsal side of the ankle, ending without tension at the proximal and lateral side of the leg. A second strip of tape, with maximum tension, was applied to support the medial longitudinal arch. The ends of the tape were placed over the malleoli without tension, aiming to reduce excessive pronation.

Intervention

Sham OTHER

In the sham taping application, the length of the tape was measured by passing it over the areas where it would be applied. The tape was applied to the medial side of the big toe, but without tension, simply placed. Then, the tape was directed towards the sole of the foot, passing over the heel. At the navicular level, the tape was applied from medial to lateral, returning to the sole without tension. A second strip of tape was applied to the sole without tension. The ends of the tape were placed over the malleoli without stretching. Since no tension was applied, this application was only placed and has a limited effect on reducing excessive pronation.

Control

Eligibility Criteria

• Age: 16 Years - 25 Years
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Actively playing volleyball for at least 5 years, A drop of 10 mm or more in the navicular drop test, A score of ≥ +4 according to the A foot posture index.

You may not qualify if:

• A history of lower extremity injury within the last 3 months, A history of ankle and/or knee surgery, Having non-structural instability, A history of congenital or traumatic deformity in the lower extremity.

Sponsors & Collaborators

• Ankara Yildirim Beyazıt University: lead

Study Sites (1)

Ankara Bilkent City Hospital

Ankara, 06000, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Anterior Cruciate Ligament Injuries; Flatfoot

Interventions

salicylhydroxamic acid

Condition Hierarchy (Ancestors)

Knee Injuries; Leg Injuries; Wounds and Injuries; Talipes; Foot Deformities, Acquired; Foot Deformities; Musculoskeletal Diseases; Foot Deformities, Congenital; Lower Extremity Deformities, Congenital; Limb Deformities, Congenital; Musculoskeletal Abnormalities; Congenital Abnormalities; Congenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Msc

Study Record Dates

• First Submitted: December 17, 2024
• First Posted: December 30, 2024
• Study Start: August 10, 2021
• Primary Completion: November 1, 2021
• Study Completion: February 1, 2022
• Last Updated: January 30, 2025

Record last verified: 2024-12

Locations

TU (1)