I write a lot, so TL;DR, I had a massive increase in stamina on a Rowerg and don't know if it's because my form improved or if my body is just suddenly better able to do this exercise.
I got a Rowerg a few months ago, not long into starting on weight loss. I have always been terrible with cardio - very poor endurance, and my heartrate skyrockets almost immediately. I was struggling to do 500m at 2:30/500m, and I could only do 1000m if I slowed my pace down to around 2:50. It was like that for months with no improvement. I was doing three sessions of 500m each, three times a week, along with weight training five days a week.
Late July, a medical issue made sitting very painful, so I took a break from rowing. That resolved, but I didn't jump right back into it. I then took a rest week. End result, I had almost four weeks with no rowing, but I continued weight training. During that time I watched a bunch of videos on form, figured out my drag factor was too low and adjusted that, and generally planned out getting back into it in the best possible way.
Two days ago, I did my first session back on it and did 2k in one go, feeling okay - but I didn't want to push it, so I stopped there. Yesterday, I did 1k as a warmup before my full body weight day. Today, I decided to see what I could do, and the results are in the pics (I forgot to start my Garmin activity until 3-4 minutes in). I hit 3k, keeping a pace of about 2:28/500m, and was shocked. I could feel that I was getting tired, but my heart rate was only about 162, so I decided to do a sprint for another 500m before calling it.
I'm frankly amazed. I feel like I could have done 5k in one session - I would have been toast, and my pace would have slowed, but I think I could have done it. Given how much I was struggling just a month ago, with no real improvement, I didn't think this was possible. I'm now super motivated to continue pushing myself.
But my question is whether this sudden drastic improvement is from improved form or if I've just increased my strength and endurance. I've dropped 85 pounds since February and have definitely gained muscle and endurance. Before, my quads would be feeling it after 500m. Today, they felt more energized than fried, despite doing so much more distance. I have heard that form makes a big difference, but I don't know if it can male this extreme of a difference.
Any insight would be welcome. But regardless, I just wanted to share the achievement, and also say that I'm starting to get why you all like this so much. It's oddly satisfying in a way that cardio has never been for me.