Biomechanical lesion, unspecified
Conditions
Interventions
Control Group:
18 women practicing classical ballet will receive a five-minute warm-up session consisting of three exercises, demonstrated by means of a videotape.
Intervention Group:
18 women practi
Other
Sponsors
Universidade Federal de São Carlos
Universidade Federal de São Carlos
Eligibility
Sex/Gender
Female
Age
15 Years to 35 Years
Inclusion criteria
Inclusion criteria: Participants should be women; age between 15 and 35 years; Body Mass Index below 24.9 kg/m2; practicing classical ballet for at least one year; regularly practicing classical ballet for at least 2 hours/week; not presenting with pain in the lower limbs at the time of assessment; and presenting with altered dynamic lower limb alignment during the step descent test. This criterion will be defined by performing the lateral step-down test described by Rabin and Kozol (2010)
Exclusion criteria
Exclusion criteria: Participants should not have undergone any surgery in the last 6 months; be presenting with a history of fracture or surgery in the lower limbs; be presenting with any of the following conditions: joint effusion, ligament injuries, diagnosis of recent lower limb injury, and history of neurological, vestibular or visual deficits; and have suffered, in the last 6 months, injury that had prevented the participant from training for more than two weeks.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Expected Primary Outcome 1: Improvement in lower limb and trunk kinematics, observed at immediate post-intervention (T2) when compared to baseline (T1). The improvement in kinematics will be represented by the decrease in peak hip adduction, hip internal rotation, knee abduction and ipsilateral trunk lean angles. The angular peaks will be obtained through kinematic assessment during the preparation and landing phases of the jump, at three time points: baseline (T1), immediate post-intervention (T2) and retention one week post-intervention (T3).;Expected Primary Outcome 2: Maintenance of the improvement in lower limb and trunk kinematics, observed at the retention test one week post-intervention (T3) when compared to immediate post-intervention (T2). The improvement in kinematics will be represented by the decrease in peak hip adduction, hip internal rotation, knee abduction and ipsilateral trunk lean angles. The angular peaks will be obtained through kinematic assessment during the preparation and landing phases of the jump, at three time points: baseline (T1), immediate post-intervention (T2) and retention one week post-intervention (T3). | — |
Secondary
| Measure | Time frame |
|---|---|
| Expected Secondary Outcome: Inability of the hip muscles strength to predict the amount of improvement in lower limb and trunk kinematics, observed in the immediate post-intervention (T2). Hip muscles strength will be represented by hip abduction, hip extension, hip external rotation and hip posterolateral muscles maximal isometric voluntary contraction. The maximal isometric strength will be obtained through maximal voluntary isometric contraction using a handheld dynamometer, at one time point: baseline (T1). | — |
Countries
Brazil
Contacts
Public ContactAnelie Cabral
Universidade Federal de São Carlos
Outcome results
None listed