Investigation of performance-related parameters (jump height and ankle mobility) in healthy, physically active participants.
Conditions
Interventions
Group 1: The study consists of a single session per participant to assess acute performance-related effects of an osteopathic intervention. At baseline, jump height is measured using a countermovement
Sponsors
Osteopathieschule Deutschland Hamburg (OSD-Hamburg)
Eligibility
Sex/Gender
Male
Age
18 Years to 50 Years
Inclusion criteria
Inclusion criteria: Male amateur soccer players aged 18–50 years who regularly participate in training and matches (at least once per week). Participants must be free of ankle complaints, including pain, movement restrictions, or recent injuries. No diagnosed acute or chronic ankle disorders (e.g., osteoarthritis, arthritis, fractures, ligament injuries, or other structural impairments) may be present. Participants must be able to safely and fully perform the performance tests (countermovement jump and knee-to-wall test). No surgical interventions of the lower extremity within the last 6 months and no ankle injuries or structural lesions within the last 3 months are allowed. Participation in other clinical, manual therapy, or performance-related studies is not permitted. Participants must not regularly use muscle relaxants, that could affect neuromuscular performance. Written informed consent must be obtained.
Exclusion criteria
Exclusion criteria: Regular use of muscle relaxants, that may affect neuromuscular performance. Missing or incomplete written informed consent. Self-reported inability to safely and fully perform the performance tests (countermovement jump and knee-to-wall test).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary outcome is the change in jump height during the countermovement jump (CMJ) between baseline and immediate post-intervention measurement. Assessments are performed at two time points: immediately before the intervention (baseline) and directly after the intervention. Jump height is measured using a validated smartphone application (MyJump 2). | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcomes include the change in ankle dorsiflexion measured by the knee-to-wall test between baseline and post-intervention assessment, as well as the association between changes in jump height and ankle dorsiflexion. Measurements are conducted at the same time points as the primary outcome. Dorsiflexion is measured in degrees using a digital goniometer placed below the tibial tuberosity during the knee-to-wall test on both ankles. | — |
Countries
Germany
Contacts
Public ContactRuben Schulze
Osteopathieschule Deutschland Hamburg (OSD-Hamburg)
Outcome results
None listed