Here are a few very simple steps to try and relieve plantar fasciitis discomfort. These moves are part of the NASM Corrective Exercise program. If your client does not get results from these steps, then he should see a doctor.
The first step is to perform self-myofascial release on his plantar fascia, gastrocnemius/soleus, and peroneals. He can use a foam roller for the gastrocnemius/soleus and peroneals and a can of frozen orange juice would work great for the plantar fascia. Roll each area until a tender spot is discovered and then hold at that point for thirty seconds.
Step two is to perform a static stretch of the gastrocnemius and the soleus. Do one set and hold the stretch for thirty seconds.
Next, perform one to two sets of ten to fifteen reps of a resisted ankle dorsiflexion and also of single leg calf raises. You can use a cable machine or resistance tubling for the resisted ankle dorsiflexion. Another alternative is to have your client sit on a bench and place a Swiss ball on top of his toes. He can apply pressure on the ball with his hands as he dorsiflexes his ankles. For each rep use a two count positive motion, hold for two counts, and then use a four count negative motion.
The final step is to perform a single-leg balance reach movement pattern. Do one to two sets of ten to fifteen reps at a slow and controlled tempo.
In addition take a look at the shoes he is wearing. Improperly fitting or old worn out shoes might not provide proper support and can lead to issues such as plantar fasciitis.
Mary have your client try these steps to see if it will relieve his arch pain.