Acute Effect of Standardized Ankle Taping on Lower Limb Asymmetry During Countermovement Jump in Healthy Judokas (ASAT-CMJ)

Acute Effect of Standardized Taping of the Dominant Ankle on Lower Limb Asymmetry During the Countermovement Jump Test in Healthy Judokas

This study aims to evaluate the acute effect of standardized taping of the dominant ankle on lower limb asymmetry during the countermovement jump (CMJ) test in healthy judokas. Forty healthy, active judokas aged 18-35 years will perform CMJ testing under two conditions: with and without standardized ankle taping. Lower limb asymmetry and selected biomechanical parameters will be measured using the Meloq EasyBase force platform. The results may improve understanding of the effects of ankle taping on jumping performance and contribute to injury prevention strategies in sport.

Study Overview

• Status: Not yet recruiting
• Conditions: Ankle Stability
• Intervention / Treatment: Device: Standardized Ankle Taping; Other: No ankle taping

Detailed Description

Ankle sprains are among the most common musculoskeletal injuries in sports and may impair proprioception, postural control, and functional performance. Standardized ankle taping is widely used to improve joint stability and reduce the risk of recurrent injury; however, its acute effects on lower limb asymmetry during jumping remain unclear.

This interventional, within-subject study will include 40 healthy, active judokas aged 18-35 years. Participants will complete countermovement jump (CMJ) testing under two randomized conditions: without ankle taping and with standardized taping applied to the dominant ankle. Following taping, participants will complete a 5-minute familiarization walk before testing.

Biomechanical variables will be assessed using the Meloq EasyBase force platform. The primary outcome is lower limb asymmetry in net propulsive impulse during the CMJ. Secondary outcomes include asymmetry in peak propulsive force, asymmetry in peak propulsive power, and jump height.

The findings may contribute to evidence-based recommendations regarding the use of ankle taping for injury prevention and performance optimization in healthy athletes.

• Study Type: Interventional
• Enrollment (Estimated): 40
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Denis Beljić, mag.physioth.; Phone Number: +385 95 5780 970; Email: denis.beljic@gmail.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Healthy male and female judo athletes aged 18-35 years.
• Regular participation in judo training (minimum 3 training sessions per week).
• No musculoskeletal injury of the lower extremities within the previous 6 months.
• Willingness to participate and provide written informed consent.

Exclusion Criteria:

• Current pain or injury affecting the lower extremities or spine.
• Previous lower-limb surgery.
• Neurological, vestibular, or balance disorders.
• Allergy or intolerance to adhesive sports tape.
• Refusal or inability to provide informed consent.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: standardized Ankle Taping; Participants perform the countermovement jump test after standardized taping of the dominant ankle. jump heigh, force, and lower-limb asymmetry are assessed.	Device: Standardized Ankle Taping; Standardized taping was applied to the dominant ankle before performing the countermovement jump test to evaluate its acute effect on lower-limb asymmetry and jump performance.
Active Comparator: No Ankle Taping; Participants perform the countermovement jump test without ankle taping. Jump height, force, and lower-limb asymmetry are assessed.	Other: No ankle taping; Participants performed th countermovement jump test without ankle taping

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Lower-Limb Asymmetry During the Countermovement Jump Test	Lower-limb asymmetry will be assessed using force plate measurements during the countermovement jump test.	Immediately after standardized ankle taping and without taping (single study visit)

Collaborators and Investigators

• Sponsor: Triggerimpulse centar

Study record dates

Study Major Dates

• Study Start (Estimated): June 1, 2026
• Primary Completion (Estimated): November 1, 2026
• Study Completion (Estimated): November 1, 2026

Study Registration Dates

• First Submitted: June 30, 2026
• First Submitted That Met QC Criteria: June 30, 2026
• First Posted (Actual): July 7, 2026

Study Record Updates

• Last Update Posted (Actual): July 7, 2026
• Last Update Submitted That Met QC Criteria: June 30, 2026
• Last Verified: June 1, 2026

More Information

Terms related to this study

• Other Study ID Numbers: TI-JUDO-2026-01

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No