It is worth to have a read, understanding terminology and meaning.
​Guide de clarification du règlement technique (ctfassets.net)​

Professional cyclists have finished their holidays and getting ready to travel to Spain where they'll improve their preparation for the 2023 season.
They have already started their training at the base training and core strength work.
The off-season is over - Professional riders begin preparations for 2023 | Cyclingnews 

Questions and Answers thanks to BICIdaSTRADA.it
Which saddle angle is the right one? Do we need to tilt the saddle down? What about tilting the saddle up? Do you experience numbness in the perineal region?
You can read a few reasonable responses at 
DOMANDE - Qual è la corretta inclinazione della sella? - BiciDaStrada
Look at your web browser for the translating option from Italian to English.​

After a great summer and long epic rides, this is the time to recover and preparing for next season.
Where to start improving performance? ​Let's have a look at our core strength and stability using the single leg bridge.
Follow the video below, get into activation mode and attempt to keep the position for 10 seconds. Try to keep your pelvis as stable as possible, don't make it drop or shift on one side and look for instabilities.
The single leg bridge is a simple and quick test to verify gluteal, abdominal and lower back muscle groups strength and asymmetries in bulk and motor/sensory control. 

Thanks to ​www.rehabmypatient.com

​Muscle can contract in three different ways: isometric, concentric and eccentric. In the last few years several studies found out that eccentric type of exercises for hamstrings are strengthening the muscle and reduce risk of injury in the footballer population. More info on eccentric and concentric exercise at: Eccentric Exercise Is Powerful but Can Be Painful · Frontiers for Young Minds (frontiersin.org) Thanks to Frontiers for Young Minds.

Five points to consider when planning to ride one of the most iconic climbs of the Alps.  
Riding the Stelvio Pass | 5 Tips for Taking on the I... (totalwomenscycling.com)

It was great to see Swain's Lane hill climb back. Thanks to London Cycling Campaign for organizing a wonderful event.
Have a look at the spectacular photography gallery:
Urban Hill Climb 2022 | Flickr 

Bike fitting is much more than finding the optimal position on the bike. By analyzing the movement of the body, data from EMG and power meter, differences in muscle activation are often highlighted. A core strength exercise routine can help to improve muscle control and overall cycling technique.