Hi Friend,
I agree with the fact that problems in foot can cause biomechanical and functional alterations of joints and areas proximally.your lumbar and thoracic area pain may be related to it.alterations in posture ,gait etc might be putting strain in proximal areas.since you are suggesting that your abdominals are weak and pelvis is anteriorlt tilted.i wonder how much we can attribute it to your foot problem.the trunk musce and posture changes may not be directly related to your foot problem.
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