None listed
Conditions
Brief summary
Introduction. 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 examine the immediate effects of a Stretching exercise, Eccentric exercise and Percutaneous Elecrtrical Stimulation (PES) technique in flexibility and function FHL muscle in young dancers Method. 45 dancers were recruited for the study, divided randomly into three groups, each comprising 15 dancers: Stretching group, Eccentric group and PES Group. All subjects performed three ballet test, before and after interventions: functional MTP joint extension (range of motion); balanced in unilateral stance heel raised (demi-pointe) and eyes open, until fatigue (balance test); and an unilateral heel raise fatigue test (endurence test). Measurements were taken on each participant´s stance limb.
Interventions
Percutaneous Electrial Stimulation (PES group). Dancers in this group received the PES by a physiotherapist with 8 years of experience. Specifically, this intervention consisted in the application of an asymmetric biphasic rectangular current of 150 microseconds and 10 Hz using a specifically developed medically certified device (Physio Invasive, Enraf Nonius, Prim, SPAIN). The subject lay prone with her feet outside the table. The FHL muscle was located at 50% of the distance between the fibula
Percutaneous Electrial Stimulation (PES group). Dancers in this group received the PES by a physiotherapist with 8 years of experience. Specifically, this intervention consisted in the application of an asymmetric biphasic rectangular current of 150 microseconds and 10 Hz using a specifically developed medically certified device (Physio Invasive, Enraf Nonius, Prim, SPAIN). 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
Sponsors
University of Seville
Study design
Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Prevention
Masking
Blinded (masking used) (Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
All
Age
18 Years to 30 Years
Healthy volunteers
Yes
Inclusion criteria
Inclusion criteria: Female dancers, training at least twenty-five hours per week, pointe training at least five hours per week.
Exclusion criteria
(1) they had sustained an injury to their stance limb in the past year preventing dancing for at least 1 day.; (2) a Personal Psychological Apprehension Scale (PPAS) score >37.5; (3) commonly accepted contraindications to invasive phsyiotherapist technique including chronic joint disease, surgery, prosthesis or osteosynthesis in the area of intervention, cardiac disease, neoplasia, coagulopathy, and use of certain drugs (fluoroquinoles, anticoagulants, corticosteroids or non-steroidal anti-inflammatories); (4) any contraindications to needling per se including unsurmountable fear of needles, history of adverse reaction to needling, immunocompromise, difficulty expressing feelings appropriately and/or allergy to metals; and (5) epilepsy.
Outcome results
None listed