Effect of Myofascial Release in Addition to Foot Core Exercises in Young Adults With Asymptomatic Flexible Pes Planus

Pes planus is a foot deformity characterized by a low medial longitudinal arch. It is more common in young adults. With low arch, tension occurs in the plantar fascia. Fascia and soft tissue loading may lead to different musculoskeletal problems such as plantar fasciitis, medial tibial stress syndrome, patellofemoral disorders and back pain. In addition, pes planus can affect individuals' activities of daily living, productivity in occupational settings, and injury risk and performance in sports.

Treatment of pes planus includes strengthening, stretching, taping and orthotics for the foot muscles. Among these applications, strengthening of the foot core muscles is one of the most common and effective methods. By strengthening the foot core muscles, it is aimed to reduce the effect of the kinetic chain. Pes planus is a postural deformity that affects the kinetic and fascial chain, but the treatment program is usually planned regionally. With fascial continuity and fascial conduction, the tension on the plantar fascia in pes planus affects the gastro-soleus, peroneus longus and brevis, hamstring muscles, iliotibial band and thoracolumbar fascia. Stretching of the plantar fascia, which is included in current treatment programs, has only a local effect and thus cannot prevent fascial chain involvement. Myofascial release, one of the methods used to reduce the tension in the fascia, has been used frequently in recent years. Myofascial release is performed with methods such as manual, foam roller and instrument assisted release. Foam roller (cylinder foam) is a practical myofascial release method that can be self-applied by the individual.

In addition to strengthening the intrinsic muscles of the foot in individuals with pes planus, it has been reported that fascial chain involvement should also be taken into consideration due to the tension in the plantar fascia with low arch. This study was planned to investigate the effect of myofascial release methods on lower extremity performance in addition to foot core exercises used effectively in the treatment of pes planus.

This study will be carried out with a Randomized Controlled Prospective Study design. For this study, individuals between the ages of 18-25 years with a fall amount of 10 millimeters or more according to the navicular fall test and flexible pes planus according to Jack's finger lift test will be informed about the study and consent for participation will be obtained. Demographic information of the individuals who accept participation will be collected. This study, 2 randomized groups of young adults with flexible pes planus will be formed and one group will be applied an exercise program including only foot core exercises, while the other group will be applied self myofascial release with foam rollers, which is a myofascial release method, in addition to foot core exercises.

Both the experimental and control groups will receive a program consisting of 7 different foot core exercises, each of which will be progressed gradually for 6 weeks, 3 sets of 10 repetitions per day. A brochure for the exercises will be prepared and given to the participants to do at home. In order to follow up the exercise of the participants, the individuals will be called weekly during this period and exercise follow-up will be performed. The experimental group will also be planned to perform 60 seconds of myofascial release on each tissue on the thoracolumbar fascia, iliotibial band, hamstring, gastro-soleus, peroneals and plantar fascia 2 days a week for 6 weeks with foam roller, which is a self-myofascial release method. The amount of load on the tissue will be determined by instructing the individuals to apply the maximum amount of load possible. At the end of six weeks, the initial evaluations will be performed again on all individuals and the measurement results will be analyzed.

Eligibility Criteria:
Inclusion Criteria:

* Be between the ages of 18-25,
* Bilateral navicular drop distance of 10 mm or more,
* Bilateral asymptomatic flexible pes planus,
* Volunteering to participate in the study and being able to continue.

Exclusion Criteria:

* Musculoskeletal disorders other than pes planus,
* Having chronic ankle instability,
* Any lower extremity injury in the last 6 months,
* Receiving a treatment related to pes planus in the last 6 months,
* Use of insoles.