As I mentioned in my first post, I earned a certificate as a personal trainer from the National Academy of Sports Medicine a couple of years ago. I also mentioned that I’m 54 years old. Unfortunately, poor judgment sometimes has a way of circumventing training and experience. Read on.
Like many older people (athletic and non-athletic), I have my share of chronic injuries — nothing dramatic, but they’re there. The most consistently painful is plantar fasciitis, a common running injury that I got, oddly enough, running. I’ve had it for more than a year. At the risk of getting too “medical” on you, it sucks. I also have a persistent problem with one of the fibular ligaments in my left ankle, which often feels on the verge of a slight sprain. I probably should get an MRI. In addition, I’m pretty sure I have slight arthritis in my wrists, though flare-ups are fairly rare.
Then there’s my back. I have a bulging (or herniated) disc in the area of the L5 vertebra, which most of us know as the lower back. As anyone with lower-back pain will attest, it can be debilitating. Fortunately, I can go months and months without it bothering me at all. There is, however, a big downside to those long periods of dormancy: I convince myself that the condition somehow has been “cured.” Which leads (finally!) to my stupidity at the gym.
I was dedicating the session to lower body and core work and decided to use the leg press machine. The one I used is almost identical to the machine pictured below (image courtesy of JUMPUSA.com), except it had stacked plates.

Ye Olde Leg Press (Courtesy JUMPUSA.com)
I did a light set to warm up, then did another at around my body weight. My back still felt fine, yet my quads wanted more! So I added another 50 pounds or so and did a third set. While I could have put up more weight, the amount I used seemed sufficient to give my quads a good workout.
About two seconds after I got off the machine, I realized I had made a big mistake: Namely, that I did an exercise which focused a tremendous amount of force directly on my lower back, thus compressing the vertebrae. I was in moderate pain for the rest of the workout. This went away the day after. Bullet dodged, right? Wrong: Two days later, just carrying my laptop in a backpack was almost excruciating.
Based on experience, I expect my current lumbar flare-up to subside in a week or so. Then I’ll be back to normal. In the meantime, here’s the dual moral of my story:
1) Never forget your limitations when working out. If you have a chronic injury or weakness — especially in a joint — avoid any exercise or machine that’s likely to cause a re-injury (or worse).
2) Don’t let your muscles do your thinking for you. Sadly, my quads didn’t get the memo that I should avoid compressing my vertebrae. It was up to me to remember that, and I should have known better.
I hope someone learns from my mistake, because I don’t plan to demonstrate the lesson again.
– Chris Nerney