I'm no stranger to injuries, but my lower back has usually been pretty immune. The few times it flared up were usually from sitting in front of the computer too long and rushing over to Capoeira without a proper warm-up. Resting for a day or two would alleviate the problem and I was back to normal.
About two months ago, I got some real gnarly lower back pain. I have a stand up desk at work and thought it might be related to this, but I noticed that Straddle Ups really seemed to set it off. I was doing 4 sets of 12 at the time and I would start to feel it in the 3rd set. Then moving onto SLS/PE3 (side2side squat) really set it off because the forward lean during the movement seemed to be putting a lot of pressure on my back.
Over the next few days the pain persisted and I was miserable. Trips to the chiropractor proved fruitless, doing stuff like putting on socks became a chore, etc. Taking a muscle relaxer, however, really disappeared the problem for a couple of days.
Before F1, I used to do a bunch of V-Ups so I was wondering what was so different between V and Straddle that could be causing this problem. To be fair, I didn't do anywhere near the volume of V-Ups as I do the Straddle, usually just 2 sets of 15 reps, and I don't know what other external factors could be contributing to this but I really instinctively feel that Straddle Ups are the main culprit.
Does this injury reveal some sort of weakness that I need to attend to? Should I drop down to MN/PE1 (which are pretty easy for me)?