Painfull tired legs and feet. Alteration in Gait
Due to Injury Resulting in an alteration in gait and general stability.
Pain due to surgical correction i.e fractures, hip & Knee replacement Muscle
pain & Fatigue Shin pain ( Compartmental syndrome)
Pain and inflammation in specific muscle groups
Back pain
Due to Injury
Due to to surgical correction as a result of injury , lower limb fracture or break resulting in an alteration in gait and general stability. 
Pain due to corrective surgeryi.e fractures, hip & Knee replacement 
Due to occupational demand 
Sciatica, Lumbar disc irritation
Hip Pain
Due to muscular imbalances and abnormal joint movement. Resulting in uneven loading of the hip joint during activity.
Thigh pain
Iliotibial band irritation, Hip bursitis
Knee pain
Pain and aching in the knee joint and surrounding soft tissue structures, during activities like walking and running.
Irritated by sporting/ general activity.i.e Stair walking
Chondramalcia Patella, Patella Femoral Syndrome, cartilage damage, ligament strain
Ankle Pain
Chronic ankle instability, Muscle Dysfunction, Lateral Impingement Syndrome
Heel pain
Dull to sharp pain occurring about the heel area when arising from rest and continuing during the initial periods of weight bearing.
Returning intermittently during the course of the day, increasing in severity overtime.
Arch Strain
Plantar Fasciitis
Metatarsal pain
Burning pain and tenderness in the sole of the foot, unable to fully weight bear on the foot, exacerbated by footwear and activity.
Metatarsalgia, neuroma pain, stress fracture
Toe joint pain –
Pain & discomfort on movement
Joint restriction
Corns & Callous
Excessive foot mobility, producing excess force and stress on the skin. Resulting increased skin stimuli and the production of painful skin lesions. 

So what can be done to resolve these functional problems?