It's been two weeks since I started to follow Björn's guidelines and tracking my PE depth alteration.
I mostly focused on posture, both standing up and sitting down; and sleeping without a pillow.
I've done kyphosis fixer exercise several times too, but I couldn't be sure if it has a good effect or not. A few times just after the exercise, I measured my PE depth as 20-22 mm, meaning a few mm more than usual, which was 18 mm when I started the follow up. However I also suspected if that could be caused by the chest wall to pop up, if it does. Naturally I only can measure the depth of the PE as compared to chest wall. A higher reading can both point to a sunken sternum, or popped out chest wall. Under this circumstances, I couldn't be sure of the effects of kyphosis exercise and decided to take it easy, not putting too much pressure on flared ribs.
I haven't used any brace until now, mostly thinking that the back muscles better be developed rather than using a brace, but later on I decided to try an abdominal brace, meanwhile using it instead of kyphosis exercise for flared ribs. Applying a gentle but constant pressure for the whole day might give better results in total, rather than putting too much pressure for a limited exercise time. Of course I'm not sure from any of it, but I'll see through a trial-and-error process.
Yesterday I've come across to an article which enlightened me in a similar way Björn's blog did. It states that the abdominal breathing or belly breathing, which is mostly said to be more efficient and relaxed for a breathing method, can effect the posture in a bad way. I had never paid attention how I breath, but as I did, I've seen that I automatically breath the way it's said to be belly or abdominal. Actually this method is promoted as a better way of breathing, also called as diaphragmatic breating, mostly populated by yoga instructors, but this article I've read was claiming that it's not the best method for the posture, and it made sense to me. After researching more about it, I've learned that not every belly/abdominal breathing is diaphragmatic. It's commonly said so, but actually there are two different types of diaphragmatic breathing, which are abdominal diaphragmatic breathing and thoracic diaphragmatic breathing. In this case, if it's done properly, you can effectively breath both focusing on abdominal or chest are. And similarly if it's not done properly, it isn't diaphragmatic, even if you think you breathe focusing on your abdominals. Anyway, the thing I want to draw attention to is, thoracic breathing promises a better posture and an expanded rib cage, popping the sternum out in time, when done properly. It's also hinted that restraining abdominal breathing can prevent excessive flare of the lower ribs.
I want to share the whole article in case you want to have a look at that.
I'll follow these guidelines in the following weeks in addition to Björn's and see how it goes all together.
By the way, through the past 2 weeks I was tracking my PE depth, I've seen fluctuating readings between 13 mm and 22 mm, mostly close to 16-18 mm. Don't get me wrong, the measurements were perfectly accurate and precise, but the depth interestingly varias day to day, even hour to hour in a day. Let me keep up my recovery attempts and share the future results in the following weeks and months again here, by better seeing and understanding the trend of improvement in time.