Three years ago, I was playing tennis during the final weekend of summer. The previous two weeks, I'd had some calf pain, nothing significant, I just kept stretching to keep it loose. Suddenly, while chasing a shot down the line, I collapsed with a sharp pain in my calf. At first, it felt like a hot stone had hit my calf. This feeling matched the description my brother had given me of tearing his Achilles, so naturally I was concerned. However, I was able to stand and walk, although stiff and in pain.
This past Friday, while on a golf outing with a client, I was walking down from the first tee when I was hit by the same 'stone' in my other leg. Luckily, this time I knew what the issue was and completed the round, though I used my clubs for support at times.
I suffered, both times, from a tear or strain of the Plantaris tendon. The Plantaris is a vestigial muscle in the calf, often harvested for repair work because it has a tendon which runs from the heel almost up to the knee, attaching a very small muscle. It's length and relatively low capacity makes it attractive for harvest when the need arises. The tricky part is that about 7-10% of all people don't even have this tendon.
Even though the injury is the result of an indirect mechanism, subjectively the patient may describe direct trauma to the calf region – often the athlete feels as though they were struck on the calf by an object such as a ball or piece of equipment.
Tennis players often suffer strains and tears of the Plantaris. My guess is this is due to less attention being paid to the calves by most workouts. At the gym I rarely see people stretching or even working out their calves. But the calves require more attention than they typically get. I'm resting it now and avoiding my usual leg workout at the gym.
