28 September 2021
** usual opening caveat: it is well beyond the scope of this short piece to address myriad pretexts and contexts and as such this represents one opinion aimed at ‘most people, most of the time’. Quite a long post today. Do we neglect our feet? I think most of us do, at least to some degree and even fewer of us appreciate them for what they really are and what they really do. If you train your biceps twice per week and you haven’t trained your feet twice ever, I hope this gives you some useful information which could, at worst, improve your bicep workouts, and at best, help manage some of those aches and pains you never managed to get to the bottom of. Whilst most of us would consider our hands to be our primary ‘tools’, our hands may spend many minutes per day in a semi-redundant state. The same can rarely be said of the feet. There is barely a second of each day when the feet aren’t in contact with our environment and in fact, very often, they are the only tactile contact we have with our environment. But what a great piece of kit they are! The adult human foot is comprised of 26 bones with 33 articulations and over 100 ligaments, tendons and muscles combining to form a highly complex structure designed to provide a dynamic, functional base of support. This occurs via a complex interplay of rigidity and motion. A complexity unparalleled by other human musculoskeletal relationships. During waking hours the foot is required to almost continually respond to stimuli whilst managing significant loads, absorbing repeated impact and facilitating the transference of multi-directional forces and responding to continual changes in surface. As many as 200 thousand nerve endings in each foot, a density of nerve endings second only to the face and hands, provide the sensory and motor capacity to facilitate the foot in the role it plays in the fundamental functions of posture, balance and locomotion. Typical issues: Arch problems, over pronation and plantar fasciitis. There is strong correlation between the structure and function of the arches of the feet, with structure affecting function and vice versa. Structural deviations within the arch of the foot have been shown to associate with functional arch conditions such as pes planus, often referred to as ‘flat foot’, and pes cavus, often referred to as ‘high arches’. Both pes planus and pes cavus are conditions which result from insufficient or inappropriate structural stability of the arches and are associated with over-pronation and over-supination respectively. Deviation from normal arch structure and function has been shown to affect stable vertical posture and efficient walking gait and when left untreated patients even commonly report negative effects on their fundamental quality of life as we rely on our feet so much, though we may not fully realise it until they begin to hurt. Firstly, we all start out with flat feet, something referred to as paediatric flexible flat foot. If you observe a young child’s feet, they will have flat feet when they bear load, i.e their arches often appear ‘normal’ whilst sitting but will flatten when they stand up and subject their feet to load. Due to further growth and development and the associated increases in function and strength this would commonly begin to disappear at around the age of ten or eleven. The most common problematic category of flat feet is acquired flat foot and this condition is almost exclusively considered to have a corresponding pathology, such as having experienced some kind of injury or patterns of chronic overuse or the result of some kind of foot and lower limb dysfunction. It can also be the result of a paediatric flexible flat foot which failed to improve beyond the time of musculoskeletal maturity. The most prevalent cause of acquired flat foot is dysfunction of the posterior tibial tendon, muscle tightness in the posterior compartment of the lower leg (including, but not limited to, the calf muscles) and joint hypermobility. Although these aren’t mutually exclusive; very often joint hypermobility is an underlying factor contributing to your tight muscles. The topic of tight muscles was covered a little more here . There is also strong correlation between flat feet and excessive pronation. In particular, pronation which is excessive in duration i.e spending too much time on the inside of a flat foot whilst mid stride. Let’s not forget though, pronation is a fundamental function of our feet in order that we can walk efficiently on varying terrain. Poor old pronation has been given a bad name recently by many health and fitness professionals who have either misunderstood it’s mechanism or who have erroneously deduced that their over pronation is causing their running problems when it may well be that their running problems are causing their over pronation. Pronation only becomes a problem when we pronate too far or for too long – usually a little of both. High arches. Whilst they don’t get the same internet attention, high arches can equally cause problems such as less compliant arches, pain in the plantar surface of the foot due to reduced surface area contact with the ground and reduced flexibility in the lower leg muscles and Achilles tendon. Both high arches and flat feet have been strongly linked to lower limb issues right up to, and including, the hip and low back. This is the result of the malalignment at the foot causing malalignment further up the body. All the above issues can of course aggravate the tissues of the body contributing to muscle strains, bursitis and not least, plantar fasciitis. All of which can further affect our movement and so the cycle continues. What do we do about it? Aside the standard response; see an appropriate therapist, balance the body, improve movement competency and increase capacity (these are large topics in their own right) we can start by introducing small daily habits aimed at making our feet a little happier and healthier. Whilst this may not make miracles happen, it’s a great place to start and at the very least offers a decent foundation upon which to build a more complete program later on if necessary. Spend a little time barefoot. This does not have to be hours of running round the woods like Tarzan. A short period each day around the house is a good start for lots of people. Just uncovering the feet and allowing them to feel the floor can help to increase proprioception and develop more awareness of how we use our feet as we move. To increase this benefit, try adding some extra stimulation from a soft, spikey massage ball or similar. Just a few minutes per day rolling the ball around the sole of your feet will help relax the soles of your feet and wake them up a little. In addition to this most people could benefit from spreading their toes out after being restricted by the narrow toe box offered by most modern footwear. Again, this does not have to be a huge endeavour; just a few minutes with your feet flat on the floor, lifting and spreading the toes a far as possible for a few seconds before placing them back onto the floor whilst maintaining the spread of the toes. Repeating this for just a few repetitions daily could help to begin to make your feet feel more relaxed and maybe even begin to develop a little more strength in some of the small intrinsic muscles of your feet which rarely have chance to work in most modern footwear. As with most things, little and often is key. Make a new habit for even a week or two and you should begin to feel some benefit. I hope that helps.