Stability Training with a Swiss Ball
Do you want to build up more strength? I do and that's why I'm doing a 4-week course called STABLE by Tim Shieff and I am very happy with the progress. I decided to prioritize stability before strength training, because it feels like an important first step. Once I build a foundation of subtle strength I can continue with heavier exercises. Tim talks about the reasoning in a conversation with a fellow YouTuber (link with timestamp).
All you need is a Swiss Ball. I am using a fancy one from VLUV that I already had as sitting ball. It looks very stylish because of its fabric cover. You can see the exercises of week one here. Tim's course is very affordable and comes in the form of a PDF with explanations and links to unlisted YouTube videos. I enjoy following along the realtime exercise videos doing a full session with Tim. Right now, I'm still doing the week one exercises for the fourth week in a row. It feels like I still build up strength and balance with the exercises, getting a little better everyday. It's actually a lot of fun.
Part of the week one workout is the eyes closed balance exercise, that Peter Attia prescribes in his book Outlive. I'm happy to tick this box, at the same time.