Clinical trial NCT06828744: Effectiveness of Dorsal Glide Mobilization on Ankle Mobility and Basketball Performance
Official title: Effectiveness of Dorsal Glide Mobilization of the Ankle Joint on Range of Motion and Performance in Young Basketball Athletes with Unilateral Restricted Ankle Dorsiflexion: a Randomized Controlled Trial
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: NA
Conditions: Unilateral Restricted Ankle Dorsiflexion
Keywords: Unilateral Restricted Ankle Dorsiflexion
Range of motion (ROM)
Eccentric exercise
Posterior talocrural glide
Basketball athletes
Lead sponsor: International Hellenic University
Sponsor class: OTHER
First posted: 2025-02-14
Enrollment: 40
Sex: ALL
Minimum age (years): 18
Maximum age (years): 25
Standard ages: ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: A randomized controlled trial will be conducted, including 40 young basketball athletes with confirmed restricted ankle dorsiflexion ROM. Participants will be randomly assigned to an intervention group and a control group. Both groups will follow a five-week training program consisting of eccentric exercises and stretching, performed three times per week, to improve athletic performance. The intervention group, in addition to the exercise program, will undergo ankle joint mobilization sessions for the same duration.
Primary purpose: PREVENTION

Brief summary: Background Ankle dorsiflexion is a crucial factor for functional lower limb performance, particularly in sports like basketball, where dynamic movements, direction changes, jumps, and landings are essential for athletic success. Eccentric exercise has been shown to improve dorsiflexion range of motion (ROM), enhancing muscle strength, flexibility, and athletic performance. Additionally, ankle joint mobilization, specifically posterior talocrural glide, has demonstrated promising results in improving mobility, restoring ROM, and reducing compensatory movement strategies. However, the combined effects of eccentric exercise and joint mobilization on increasing ankle dorsiflexion ROM and improving athletic performance in young basketball athletes have not yet been sufficiently investigated.

Objective The purpose of this study is to investigate the effectiveness of combining eccentric exercise and posterior talocrural glide mobilization in improving ankle dorsiflexion ROM and enhancing athletic performance in young basketball athletes.

Methods A randomized controlled trial will be conducted, including 40 young basketball athletes with confirmed restricted ankle dorsiflexion ROM. Participants will be randomly assigned to an intervention group and a control group. Both groups will follow a five-week training program consisting of eccentric exercises and stretching, performed three times per week, to improve athletic performance. The intervention group, in addition to the exercise program, will undergo ankle joint mobilization sessions for the same duration.

Ankle dorsiflexion ROM, maximum isometric strength of the ankle muscles, fatigue resistance through specific endurance tests, and performance via functional tests will be assessed at baseline, at the end of the five-week program, and three months after the intervention. Statistical analysis will be conducted using a two-way repeated-measures ANOVA, with the significance level set at p \< 0.05.

Detailed description: Background Ankle dorsiflexion is a crucial factor for functional lower limb performance, particularly in sports like basketball, where dynamic movements, direction changes, jumps, and landings are essential for athletic success. Eccentric exercise has been shown to improve dorsiflexion range of motion (ROM), enhancing muscle strength, flexibility, and athletic performance. Additionally, ankle joint mobilization, specifically posterior talocrural glide, has demonstrated promising results in improving mobility, restoring ROM, and reducing compensatory movement strategies. However, the combined effects of eccentric exercise and joint mobilization on increasing ankle dorsiflexion ROM and improving athletic performance in young basketball athletes have not yet been sufficiently investigated.

Objective The purpose of this study is to investigate the effectiveness of combining eccentric exercise and posterior talocrural glide mobilization in improving ankle dorsiflexion ROM and enhancing athletic performance in young basketball athletes.

Methods A randomized controlled trial will be conducted, including 40 young basketball athletes with confirmed restricted ankle dorsiflexion ROM. Participants will be randomly assigned to an intervention group and a control group. Both groups will follow a five-week training program consisting of eccentric exercises and stretching, performed three times per week, to improve athletic performance. The intervention group, in addition to the exercise program, will undergo ankle joint mobilization sessions for the same duration. Ankle dorsiflexion ROM, maximum isometric strength of the ankle muscles, fatigue resistance through specific endurance tests, and performance via functional tests will be assessed at baseline, at the end of the five-week program, and three months after the intervention. Statistical analysis will be conducted using a two-way repeated-measures ANOVA, with the significance level set at p \< 0.05.

Expected Outcomes Improvements in ankle dorsiflexion ROM, muscle strength, and athletic performance are expected, along with a reduction in fatigue and compensatory movement strategies. The intervention is also anticipated to enhance ankle stability and lower the risk of injuries.

Eligibility criteria: Inclusion Criteria:

* Participants healthy and actively engaged in sports at the time of the study.
* No presence of ankle pain or use of medication for musculoskeletal injuries or pain management at the time of the study.
* Participation in regular training for at least one month prior to the study.
* A restriction in ankle dorsiflexion of at least 2 cm in one foot compared to the other, as measured using the Weight-Bearing Lunge Test (WBLT).
* Written informed consent must be provided before participation in the study.

Exclusion Criteria:

* History of lower extremity surgery.
* Musculoskeletal injury to the lower extremity within the past six months.
* Presence of vestibular, balance, or connective tissue disorders.

Primary outcomes:
measure: Active Range of Motion of Ankle Dorsiflexion using a Digital Goniometer
timeFrame: Baseline, end of 5th week, 3-moth follow-up
measure: Dorsiflexion Range of Motion in a Closed Kinetic Chain using the Weight-Bearing Lunge Test (WBLT)
timeFrame: Baseline, end of 5th week, 3-moth follow-up
measure: Maximum Isometric Strength of Ankle Dorsiflexors and Plantar Flexors using a Handheld Dynamometer
timeFrame: Baseline, end of 5th week, 3-moth follow-up
measure: Jump Height (cm) using the Vertical Jump Test
timeFrame: Baseline, end of 5th week, 3-moth follow-up
measure: Endurance and Fatigue Resistance (Number of Repetitions) using the Repeated Single-Leg Hops (RSLH) Test
timeFrame: Baseline, end of 5th week, 3-moth follow-up
measure: Strength Endurance and Explosiveness (Reactive Strength Index - RSI) Average during Continuous Jumps (15 sec)
timeFrame: Baseline, end of 5th week, 3-moth follow-up
measure: Endurance Assessment using the Fatigue Index (first 5 vs. last 5 Jumps)
timeFrame: Baseline, end of 5th week, 3-moth follow-up
measure: Performance Assessment using the Single-Leg Hop Test for Distance
timeFrame: Baseline, end of 5th week, 3-moth follow-up
measure: Performance Assessment using the Triple Hop for Distance Test
timeFrame: Baseline, end of 5th week, 3-moth follow-up
measure: Performance Assessment using the Single-Leg 6m Timed Hop Test
timeFrame: Baseline, end of 5th week, 3-moth follow-up
Secondary outcomes:
Other outcomes:
Locations:
city: Thessaloniki
country: Greece
facility: International Hellenic University
Study officials:
References: