Deltoid Muscle Strain, Neck Muscle Issue, Sternocleidomastoid; Contracture
Conditions
Brief summary
An observational cohort study, following the Strengthening the Reporting of Observational Studies in Epidemiology(STROBE) guidelines. Two groups will be examined, a group composed by spanish acrobatic skydivers and a control group composed by general physically active population(GPAP).
Detailed description
Two groups will be examined for veryfing the morfology and the function of neck muscles. The profesional group composed by spanish acrobatic skydivers and a general group composed by general physically active population(GPAP). Both groups are matched at known confounder outcomes such as: physical activity level, age, sex, body weight and history of neck pain. Frequency matching will be carried out, subjects will be matched on known confounders.
Interventions
BEHAVIORALObservation
Verification of morfology and functionality of neck muscles
Sponsors
Universidad de Murcia
Study design
Observational model
COHORT
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
No minimum to 60 Years
Healthy volunteers
Yes
Inclusion criteria
* pain-free in the neck area in the last three months * didn't actually take any drugs that can interfere with muscle strength
Exclusion criteria
* participants that not mached with the skydivers caracteristics
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Anticipatory postural adjustment | 10 minutes | Electromyographic test in ms.The myoelectric signal will be recorded by using mDurance R system (mDurance Solutions SL, Granada). The electrodes used will be pre-gelled Ag/AgCl with a diameter of 10mm and an interelectrode distance of 20mm. |
| Isometric cervical strength | 10 minutes | Measured in newton with heandheld Dynamometer (model 001165, Lafayette Instrument Company) |
| Neck flexor and extensor endurance | 10 minutes | Measures in seconds with a stopwatch |
Outcome results
None listed