Clinical trial NCT02739308: Effects of Proprioceptive Training on Neurofunctional Control and Ankle Sprains Incidence
Official title: Effects of Proprioceptive Training on Neurofunctional Control and Ankle Sprains Incidence in Fencers: a Randomized Controlled Trial
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Ankle Injuries
Keywords: proprioception
ankle sprain
fencing
Lead sponsor: Federal University of Rio Grande do Sul
Sponsor class: OTHER
First posted: 2016-04-15
Enrollment: 18
Sex: ALL
Minimum age (years): 14
Maximum age (years): 30
Standard ages: CHILD
ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: The aim of this study is to investigate the influence of a 12-week proprioceptive training program on the neurofunctional control and the incidence of ankle sprains in fencing athletes. The study will be developed in six stages: familiarization, pre intervention, intervention, post intervention follow-up of three and six months. In the pre intervention stage will evaluate muscle strength inverters, everter, dorsal plantar flexors and ankle flexors through the isokinetic dynamometer; the reaction time of these muscles during Lunge Test; neuromuscular control during the Star Excursion Balance Test and performance in Drop Vertical Jump Test. In the intervention athletes will perform proprioceptive training for 12 weeks, three times a week, lasting 30 minutes. In the post intervention, the follow up of three to six months will be held the same pre intervention of the tests and recording the incidence of injuries occurred during the study. The expected result at the end of the study is to improve all variables, increasing the performance of athletes and decreasing the incidence of ankle sprains.

Detailed description: Fencing is an agility sport, with higher incidence of injuries in the lower limbs, with the ankle sprain the most prevalent. Injury prevention is very important to improve performance and reduce time off of athletes. Proprioceptive training programs can be added to the training of athletes, since in addition to the easy application and low cost, proprioception serves to stabilize the joint, preventing injuries. Therefore the aim of this study is to investigate the influence of a 12-week proprioceptive training program on the neurofunctional control and the incidence of ankle sprains in fencing athletes. The study will be a randomized clinical trial, with fencing athletes from 14 to 25, a multi-sport club of Porto Alegre/RS, and developed in six stages: familiarization, pre intervention, intervention, post intervention follow-up of three and six months. The first step will be to familiarize themselves with the force of testing and registration of injuries in the previous year. In the pre intervention stage will evaluate muscle strength inverters, everter, dorsal plantar flexors and ankle flexors through the isokinetic dynamometer; the reaction time of these muscles during Lunge Test; neuromuscular control during the Star Excursion Balance Test and performance in Drop Vertical Jump Test. In the intervention athletes will perform proprioceptive training for 12 weeks, three times a week, lasting 30 minutes. In the post intervention, the follow up of three to six months will be held the same pre intervention of the tests and recording the incidence of injuries occurred during the study. For statistical analysis, the data will be presented as mean and standard deviation and submitted to the Shapiro-Wilk test, ANOVA will be held for repeated measures and post hoc Bonferroni to determine differences. The effect size is calculated using Cohen's d test.o significance level is 0.05. The expected result at the end of the study is to improve all variables, increasing the performance of athletes and decreasing the incidence of ankle sprains.

Eligibility criteria: Inclusion Criteria:

* practicing fencing at least a year
* have between 14 and 30 years.

Exclusion Criteria:

* be in physical therapy or participating in prevention programs
* have damage to lower limbs that compromise the tests

Primary outcomes:
measure: Onset muscle
timeFrame: 12 weeks
Secondary outcomes:
measure: Muscle Strength
timeFrame: 12 weeks
measure: Star Excursion Balance Test (SEBT)
timeFrame: 12 weeks
measure: Drop Vertical Jump Test (DVJT)
timeFrame: 12 weeks
measure: Cumberland Ankle Instability Tools (CAIT)
timeFrame: 12 weeks
measure: Injury questionnaire
timeFrame: 12 weeks
Other outcomes:
Locations:
city: Porto Alegre
country: Brazil
facility: Gabriela Souza de Vasconcelos
state: Rio Grande do Sul
Study officials:
References: