Neuromodulation in Professional Dancers
- Conditions
- Sport PerformanceDanceRehabilitationSports Physical Therapy
- Interventions
- Other: PENSOther: TENS
- Registration Number
- NCT03596216
- Lead Sponsor
- University of Seville
- Brief Summary
Tendinopathy of the flexor hallucis longus (FHL), colloquially referred to as "dancer's tendinitis," is a common condition in dancers and attributed to high demand on this muscle in positions of extreme ankle plantarflexion and metatarsophalangeal (MTP) flexion and extension. Tradicional conservative treatment includes rest from pain-inducing activities including pointe work and jumping, physical therapy a focusing on movilization of the joints of the first ray and subtalar joint, and antiinflamatory medications. Unfortunately, dancer frecuently do not follow recommendations to rest due to the competitive nature of the field. Those who do not respond to conservative treatment undergo more serious interventions including steroid injections or surgery, each with additional risks and recovery time. To develop experimental protocols aimed at prevention and nonsurgical interventions are needed. Therefore, the aim of this study was To investigate the effects of one shot of low-frequency percutaneous electrical nerve stimulation (PENS) vs. one shot of transcutaneous electrical nerve stimulation (TENS) in performance of the Flexor Hallucis Longus muscle in young dancers.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Female
- Target Recruitment
- 51
- Female dancers
- Training at least twenty-five hours per week
- Pointe training at least five hours per week.
- They had sustained an injury to their stance limb in the past year preventing dancing for at least 1 day
- Personal Psychological Apprehension Scale (PPAS) score >37.5
- Commonly accepted contraindications to invasive phsyiotherapist technique
- Any contraindications to needling per se.
- Commonly accepted contraindications to electrotherapy
- Epilepsy.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Percutaneous Electrial Stimulation (PES group). PENS This intervention consisted in the application of an asymmetric biphasic rectangular current. The subject lay prone with her feet outside the table. The FHL muscle was located at 50% of the distance between the fibular head and inferior border of the lateral malleolus on the posterior aspect of the fibular by ultrasound machine (cross-section) (Logiq, GE Healthcare, USA) and then, a needle (0.30mm x 0.40mm) was inserted, perpendicular to the surface of the skin, until the muscle belly. Prior to inserting a neddle, the underlying skin was cleaned with isopropyl alcohol. The intensity of the current was necessary to cause an exacerbated muscle contraction, during 1.5 min acording to the Valera and Minaya protocol´s. This intervention was performed once in each participant, on one leg only (stance limb), It's only once, it was not a treatment Transcutaneous Electrial Stimulation (TENS group) TENS This intervention consisted in the application of an asymmetric biphasic rectangular current. The subject lay prone with her feet outside the table. The FHL muscle was located at 50% of the distance between the fibular head and inferior border of the lateral malleolus on the posterior aspect of the fibular by ultrasound machine (cross-section) (Logiq, GE Healthcare, USA),and then, one self-adhesive electrode was placed on the back of the leg and the other on the sole of the foot. The intensity of the current was necessary to cause an exacerbated muscle contraction, during 1.5 min. This intervention was performed once in each participant, on one leg only (stance limb), It's only once, it was not a treatment
- Primary Outcome Measures
Name Time Method Change in range of motion of first MTF joint 1 day Assessed using goniometer.
Change in balance 1 day Assessed by a single leg balance test
Change in muscular endurence, 1 day Assessed by endurance test (heel raise repetitions).
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Blanca de La Cruz Torres
🇪🇸Seville, Spain