Effects of Diacutaneous Fibrolysis on Flexibility and Active Neuromuscular Response

Universitat Internacional de Catalunya66 enrolled

Overview

Diacutaneous fibrolysis is a physiotherapeutic instrumental technique, used to treat musculoskeletal conditions causing pain and/or movement restriction. It is applied by means of metallic hooks, ending in a spatula with beveled edges, that seems to allow a better pressure distribution on the skin and a deeper and more precise application, compared to the manual approach. Recent studies indicate positive responses regrading pain intensity decrease in sports people suffering anterior knee pain, improving range of motion in subacromial impingement syndrome, improving sensory conductivity in symptomatic patients with carpal tunnel syndrome, decreased pain in patients with chronic epicondialgia or improveing function athletes with anterior knee pain. However, the specific action mechanism, have not been investigated in depth yet. There are no studies evaluating its effects on posterior muscular chain of lower extremity in athletes, where FD effects on neuromuscular response could be more evident due to the overload involved on this area. The aim of this study is to evaluate the immediate, and after 30 minutes, effects of a single diacutaneous fibrolysis session on flexibility, strength and neuromuscular activity on hamstring in athletes. A randomized controlled trial with blind evaluator. Randomization will be done between lower extremities of each subject (Random.org). Regardless of its own dominance, diacutaneous fibrolysis will be applied to de following muscles and intermuscular septums: gluteus maixmus, biceps femoris and semitendinosus to de lower experimental limb. The other extremity will not be treat (control limb). Sample recruitment. Athletes from UIC university community, who compete officially or institutionally, whether they are federated or recorded in a sport official register where the predominant activity focuses on the lower train (athletics, cycling, football, rugby...). Procedure. The anthropometric data will be collected at the beginning of the study. Each outcome assessment will be performed by a blinded evaluator at the baseline, immediately after the technique application and 30 minutes after.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Interventions

Diacutaneous fibrolysisOTHER

Diacutaneous fibrolysis is a physiotherapeutic instrumental technique, used to treat musculoskeletal conditions causing pain and/or movement restriction. It is applied by means of metallic hooks, ending in a spatula with beveled edges. Regardless of its own dominance, diacutaneous fibrolysis will be applied to de following muscles and intermuscular septums: gluteus maximus, biceps femoris and semitendinosus to de lower experimental limb. A single session of 10 minutes will be applied.

Outcomes

Primary Outcomes

Hamstring neuromuscular activity

Hamstring neuromuscular activity (% of muscular fiber recruitment) will be assessed by surface electromyogram (mDurance). The electrodes will be placed on hamstring muscle while performing a functional movement.

Time frame: Change between baseline (immediately before intervention) and post intervention (immediately after intervention); Change between baseline (immediately before intervention) and 30 minutes after intervention]

Gluteus maximus neuromuscular activity

Gluteus maximus neuromuscular activity (% of muscular fiber recruitment) will be assessed by surface electromyogram (mDurance). The electrodes will be placed on gluteus maximus muscle while performing a functional movement.

Hamstring isometric strength

Isometric muscle strength (Kg) will be evaluated by means of a digital dynamometer (Microfeet 2). This measures will be taken across a knee flexion.

Guteus maximus isometric strength

Isometric muscle strength (Kg) will be evaluated by means of a digital dynamometer (Microfeet 2). This measures will be measured by means of hip extension.

Height on counter movement jump

Height (centimeters) on counter movement jump will be assessed using a mobile application called "My jump". Its data has been used as an indirect indicator of explosive muscular strength of lower limb

Time flight on counter movement jump

Time flight (milliseconds) on counter movement jump will be assessed using a mobile application called "My jump".

Force on counter movement jump

Force (newtons) on counter movement jump will be assessed using a mobile application called "My jump".

Back chain flexibility Changes

Back chain flexibility is going to be assessed by means of modified Back Saver Sit and reach test (centimeters).

Hamstring flexibility changes

Hamstring muscles flexibility will be assessed using the passive knee extension test (degrees) by means of goniometer.

Effects of Diacutaneous Fibrolysis on Flexibility and Active Neuromuscular Response

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Central Contacts