Healthy Participants
Conditions
Brief summary
Proper functioning of the ankle musculature, specifically peroneal muscles, is crucial for maintaining balance and reducing the risk for falls. Evidence suggests that a decrease in aspects of neuromuscular control already starts at midlife (45-65 years). However, there is almost no information regarding the function of the ankle muscles at the middle-age as most experiments have compared young (\<35 years) and older subjects (\>65 years). Moreover, neuromuscular training can improve the function of ankle muscle in response to perturbation; yet, no previous study has compared the level of effectiveness between middle-aged and young adults.
Interventions
OTHERElectromyograph Biofeedback training of the peroneal muscle
The exercise will be performed with the subject sitting in front of a computer monitor, on an elevated chair, and his feet will be in the air. The examiner will ask the subject to perform a maximum contraction of the paronal muscles, in an open kinematic chain. After reference, the subject will begin a five-minute practice. The practice will be divided into rounds of: eight seconds of muscle work and 15 seconds rest.
Sponsors
Ariel University
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
20 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
\- Healthy participants
Exclusion criteria
* Neurological disease accompanied by motor, sensory or cognitive impairment. * Illness or condition that does not allow strenuous activity. * Significant orthopedic injury to the back or lower limbs in the last six months, which limits strenuous activity or weight-bearing. * History of orthopedic injury that includes injury to the knee or ankle ligaments. * Taking medications that may affect stability or balance. Significant visual impairment that is not corrected using glasses/contact lenses * Pregnancy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Time to stabilization | Within 24 hours | Subjects will be asked to jump from a 20 cm high box onto a force plate (i.e., expected fall). |
| Electromyography of peroneus longus- The height of the amplitude- expected fall | Within 24 hours | Subjects will be asked to jump from a 20 cm high box onto a force plate (i.e., expected fall). electromyography of peroneus longus will be measured the height of the amplitude - expresses the peak of the electrical activity of the muscles. |
| Electromyography of peroneus longus- Time to Peak- expected fall | Within 24 hours | Subjects will be asked to jump from a 20 cm high box onto a force plate (i.e., expected fall). electromyography of peroneus longus will be measured the Time to Peak- describes the time it takes for the Peroneus longus muscle to reach the peak of its electrical activity. |
| Electromyography of peroneus longus- Time to Onset- expected fall | Within 24 hours | Subjects will be asked to jump from a 20 cm high box onto a force plate (i.e., expected fall). electromyography of peroneus longus will be measured the Time to Onset - expresses the period that passes from the beginning of the fall to the initial recruitment of the Peroneus longus. |
| Electromyography of peroneus longus- The height of the amplitude-unexpected fall | Within 24 hours | Subjects will stand on a platform during a unilateral sudden 30° inversion platform perturbation that resembles an unexpected fall. electromyography of peroneus longus will be measured the height of the amplitude - expresses the peak of the electrical activity of the Peroneus longus muscle. |
| Electromyography of peroneus longus- Time to Peak-unexpected fall | Within 24 hours | Subjects will stand on a platform during a unilateral sudden 30° inversion platform perturbation that resembles an unexpected fall. electromyography of peroneus longus will be measured the Time to Peak- describes the time it takes for the Peroneus longus muscle to reach the peak of its electrical activity. |
| Electromyography of peroneus longus- Time to Onset-unexpected fall | Within 24 hours | Subjects will stand on a platform during a unilateral sudden 30° inversion platform perturbation that resembles an unexpected fall. electromyography of peroneus longus will be measured the Time to Onset- expresses the period that passes from the beginning of the fall to the initial recruitment of the Peroneus longos muscle. |
| Maximal voluntary isometric peroneal contraction force | Within 24 hours | Subject will perform Maximal voluntary isometric peroneal contraction. The force will measured with dynamometer |
Countries
Israel
Contacts
Primary ContactShmuel Springer, Prof.
Outcome results
None listed