A stiff hip doesn't just make your hip stiff. It changes how your knee tracks, which changes how your ankle loads, which eventually becomes a fascia that has been working overtime for months. The feet are the last to show the problem, and the first to be blamed.
This is not a "posture causes everything" piece — the evidence for most posture-to-pain relationships is shakier than physios sometimes present. But there is a legitimate, direct relationship between how you stand and what your feet have to absorb, and it's worth understanding.
The kinetic chain, briefly
"Kinetic chain" is the phrase for how forces travel up and down the body. When you take a step, the ground pushes up on your foot with a force slightly greater than your body weight. That force has to go somewhere — it travels through the foot, ankle, knee, hip, pelvis, spine, and shoulder on its way up. Any joint that fails to absorb and redirect that force efficiently offloads the work to its neighbours.
In practice, this means a dysfunction anywhere in the chain eventually presents somewhere else. Low back pain can refer to the feet. Hip restriction can cause knee pain. Ankle stiffness can cause plantar fasciitis.
How posture affects feet
Several common postural patterns change how the feet load:
- Anterior pelvic tilt. The pelvis tips forward. This shortens the hip flexors, lengthens the glutes, and typically makes the calves tighter. Tight calves restrict ankle dorsiflexion, which forces the foot to compensate at the fascia insertion. Over years, this is a meaningful risk factor for plantar fasciitis.
- Excessive thoracic kyphosis (rounded upper back). Shifts the centre of mass forward, which increases load on the forefoot and tightens the posterior chain. Common in desk workers.
- Knee valgus (knees collapse inward). Pulls the arch into over-pronation. Often linked to weak glutes.
- Leg-length discrepancy. Even small differences (<1cm) can cause asymmetric loading across decades.
None of these cause foot pain in isolation. But in people already loading the fascia from other risk factors, any of these can be the straw that puts them over the threshold.
How feet affect posture
The chain works both ways. Foot mechanics influence everything above:
- Collapsed arches rotate the lower leg inward, which rotates the thigh inward, which tips the pelvis. Fixing the arch, in some people, fixes a long-standing hip complaint.
- Limited big-toe dorsiflexion (hallux rigidus) forces you to compensate at push-off, shortening stride and altering gait mechanics.
- Leg-length discrepancy from arch drop can develop over years, contributing to low back and sacroiliac pain.
- Pain-avoidance gait. When one foot hurts, you unconsciously shift weight to the other, which over time creates compensations in the knee and hip on the non-painful side.
Fix where you look, not where it hurts.
Not always. But often, the tissue yelling loudest is not the one most responsible. A good clinician assesses the whole chain.
What to actually do about it
Without taking this too far, a few things reliably help:
- Work on ankle dorsiflexion. If you cannot touch your knee to the wall with your heel down, you have limited dorsiflexion. 2 minutes a day of wall calf stretches (both knee-straight and knee-bent) is worth more than most people realise.
- Strengthen the glutes. Specifically glute medius. Clamshells, side-lying leg raises, single-leg bridges. Weak glutes are a root cause of knee valgus and over-pronation.
- Mobilise the big toe. Pull it up and hold. Circles. 30 seconds a day. Big-toe mobility is disproportionately important for walking mechanics.
- Assess your standing posture. Feet roughly hip-width, weight centred over the mid-foot (not the heel, not the ball), slight knee softness, pelvis neutral, ribs stacked over pelvis, shoulders relaxed. Do this 10 times a day and you'll catch your habits.
- Move. The single best thing for posture is not holding a perfect one — it's changing it regularly. Stand, sit, walk, stretch. Static anything for too long is the problem.
The best posture is the next one. Bodies are built for movement, not for maintaining any single shape — including the "correct" one.
— Maya Iwamoto, Head of ProtocolIf you spend most of your day standing, the footwear part of the chain carries extra weight. A supportive insole helps hold the foot in a neutral position, which helps the ankle, knee, and hip above. It isn't posture correction. It's removing one of the compounding inputs.
For the specific case of standing all day and everything that implies, see our why your feet hurt after standing all day piece.
References & further reading
- Myers TW. Anatomy Trains: Myofascial Meridians for Manual and Movement Therapists. Churchill Livingstone, 3rd ed., 2014.
- Khamis S, Yizhar Z. Effect of feet hyperpronation on pelvic alignment in a standing position. Gait & Posture, 2007.
- Menz HB et al. Foot pain and functional limitation in older adults. Archives of Physical Medicine and Rehabilitation, 2011.