An interventional study of trunk stabilization exercise and pronated foot posture exercise in Pes Planus and Pronated Foot, sponsored by Kafrelsheikh University. Completed at 1 site in Egypt. Per ClinicalTrials.gov, last updated 2026-07-29.
Sponsored by Kafrelsheikh University · Not applicable, Interventional, and Treatment
the purpose of this study is to investigate The effect Trunk stabilization on dynamic balance and foot function of pronated foot posture.
Pronation is the simultaneous calcaneal eversion with foot abduction and dorsiflexion. The range of motion (ROM) for subtalar joint during pronation was around 5 ° to 10°. Pronation is important for stabilization in standing and walking, but excessive ROM for this motion can lead to over pronation.
Foot pronation is a natural movement, necessary for the normal development of gait, since it contributes to the absorption of the ground reaction forces .
However, overpronation causes the collapse of the medial longitudinal arch of the foot, thus causing more tension in certain muscles of the foot and leg, i.e., posterior tibialis. Pronated feet present rearfoot eversion and dorsiflexion with abduction of the forefoot in a static position, and in addition, have a strong relationship with the medial longitudinal arch (MLA). It is suggested that maintaining the integrity of the MLA can prevent numerous musculoskeletal injuries .
Pronated foot posture is common in adulthood, with a prevalence of around 21%, and it may be related to deformities of the first ray of the foot, such as the hallux valgus. Furthermore, this biomechanical alteration can also affect other areas, such as the knee .Thus, pronation influences the time and intensity of lumbopelvic muscle activation, giving rise to low back pain or other dysfunctions at that level.
There are several methods to treat the pronated foot, such as custom foot orthoses, external modifications of the footwear, exercises to strength the muscles involved or even surgery .Strength exercises are a highly recommended method in the treatment of childhood flat foot, since muscle enhancement plays very important role in the development of the lower limbs in the growth of the child. The lack of treatment can often lead to short- and long-term problems with deformities in adolescence and adulthood .
In adults, exercising the intrinsic foot musculature (short-foot exercises) has been shown to be effective in reducing the height of the internal arch or pronation in healthy subjects and sportspersons .Recently Pabón-Carrasco et al. demonstrated that foot posture could be modified with shot foot exercises, with a decrease in navicular drop measurements.
The main Intrinsic foot muscles (IFMs) are abductor hallucis (ABH), flexor digitorum brevis (FDB) and quadratus plantae (QP). Their principal function is to provide foot stability and flexibility for shock absorption ; improve dynamic alignment; stiffen the foot arches and stimulate proprioceptors on the sole of the feet . IFMs are also categorised as active subsystems in the foot core system and play an important role in static posture and dynamic activities .
Hence, strengthening of the IFM is logical as a possible intervention to help prevent pronation-related injuries. Common methods used to strengthen the IFM have previously involved toe-flexion exercises (e.g. towel crunches or marble pickups). However, Isolation of the IFM using the short-feet exercise could potentially be a more effective method to reinforce the MLA.
The muscle thicknesses and cross-sectional areas (CSAs) of the abductor hallucis (AbH), flexor hallucis brevis (FHB), flexor hallucis longus (FHL), and flexor digitorum longus (FDL) change in feet with reduced MLA ,under weight-bearing conditions. (4).
The core trunk musculature is comprised of abdominals, paraspinal, hip joint muscles and pelvic floor muscles. Co-contraction of transverses abdominis and multifidus is essential for the stability of the spine in static and dynamic balance. During inspiration, the diaphragm creates intra-abdominal pressure which creates spinal stability. This intra-abdominal pressure activates pelvic floor muscles and eccentrically abdominals to provide spinal stabilization and posture is improved .
173 studies on the registry are indexed under Flatfoot; 44 are open to participants now.
This study's enrollment of 30 is below the median of 40 across 122 interventional studies indexed under Flatfoot.
Browse Flatfoot studies →Kafrelsheikh University is the lead sponsor of 294 studies on the registry; 114 are open to participants now.
Of its 10 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
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Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
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BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
a participants recieve Trunk stabilization exercise and pronated foot exercise
Behavioral: trunk stabilization exercise · Behavioral: pronated foot posture exercise
A participant receives a pronated foot exercise
Behavioral: pronated foot posture exercise
An Exprimental group receive trunk stabilixation and pronated foot exercise
participants recieve a conventional exercise program for pronated foot posture
dynamic balance
dynamic balance will be assessed using balance check 363 system , lower sway values indicate better balance
Time frame: baseline and after 6 weeks of intervention
Foot function index
Foot function will be assessed using Foot Function Index ( FFI ). The total score range from 0 to 100, with higher score indicating worse pain , distability , and activity limitation
Time frame: baseline and after 6 weeks of intervention
Plan to share: Undecided
No publications or documents are linked to this record.
Ran from Nov 2025 to primary completion in Jan 2026, 2 months.
Of 89 non-industry interventional studies with no phase under Flatfoot, half reached primary completion within 7 months of starting (the median), counting those still running; a quarter within 2 and three quarters within 15. This study's 2 months is below that.
Counting every sponsor, half of 89 studies reached it within 7 months; a quarter within 2 and three quarters within 15.
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This study is completed, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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