Athletic Performance, Balance, Joint Manipulation, Jumping Performance, Motor Activity, Physical Therapy Modalities, Postural Balance, Range of Motion, Sports, Volleyball
Conditions
Brief summary
This randomized controlled trial aims to evaluate the acute effects of activator-assisted talocrural joint manipulation on joint range of motion, dynamic balance, vertical and horizontal jump performance, and weight transfer parameters in elite male volleyball players aged 18-25. The study compares a manipulation group with a sham control group and assesses performance metrics before and after the intervention.
Interventions
OTHERSham Stroking
Participants in this group receive a sham intervention consisting of light soft tissue stroking around the talocrural joint without joint manipulation. The application mimics the duration and setup of the experimental group but does not include any mechanical stimulus.
OTHERActivator Manipulation
Participants in this group receive a single session of activator-assisted manipulation using the Activator Adjustment Instrument (AAI) to the talocrural (ankle) joint. Six impulses (three anterior and three posterior) are applied with the ankle in a neutral position.
Sponsors
Ankara Yildirim Beyazıt University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Masking description
Single Blind (Statistician analyzing data was blinded)
Eligibility
Sex/Gender
MALE
Age
15 Years to 25 Years
Healthy volunteers
Yes
Inclusion criteria
* Elite male volleyball players aged 15-25 years * Minimum of 3 years of professional volleyball training experience * Active member of a team and club
Exclusion criteria
* Not actively participating in training or matches * History of acute musculoskeletal pathology or surgery in the lower extremities
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Y-Balance Test | Pre-intervention (T0) and post-intervention (T1, within 3-5 minutes). | Anterior, posteromedial, and posterolateral reach distances (cm). |
| Ankle Range of Motion (Plantar/Dorsiflexion) | Pre-intervention (T0) and post-intervention (T1, within 3-5 minutes). | Plantar and dorsiflexion measured using a goniometer (degrees). |
| Jumping Performance: | Pre-intervention (T0) and post-intervention (T1, within 3-5 minutes). | Vertical jump height and horizontal jump distance (cm). |
| Dynamic Weight Transfer | Pre-intervention (T0) and post-intervention (T1, within 3-5 minutes). | Assessed via pedobarographic analysis, including static load ratio (%), dynamic contact area ratio (CAR-AP, CAR-RP, %), and dynamic speed (mm/s). |
Countries
Turkey (Türkiye)
Outcome results
None listed