At the end of a one-hour gym routine, I notice discomfort in my upper right arm. Figuring it’s due to lack of exercise of those muscles, and that the pain will subside in time, I ignore it. To help expedite the situation, I rig up some weights at home using pennies and glass jars.
But enough is enough, eventually, and I need to find what is causing this muscle to ache. Onto the Internet, I venture, first finding a schematic of human muscles of the upper arm: biceps, triceps and deltoid. I then run my forefinger along my triceps — nope, nothing — then the biceps — all normal — then north to the deltoid muscle near the shoulder.
Ouch! Found it! Since exercising has not relieved the discomfort, I now research how to relieve deltoid pain. Eventually, I come to three YouTube videos.
The first video features an Australian who places a tennis ball on his sore deltoid, leans against a wall, applies pressure, lingers about one minute and then repeats on another sore area. Easy enough, I thought. In the second video, an Englishman demonstrates sinking two fingers into the spot where the arm and shoulder meet, then moving the arm forward.