Create 10 concrete exercise templates that specifically promote joint health and improve mobility, stability, as well as pain reduction in the most important joints.

Context: [Joint health, movement, mobility, stability, pain prevention, fitness, physiotherapy, exercises, everyday life, health]

Goal: [Improvement of joint function, reduction of complaints, strengthening of the muscles around the joints, promotion of mobility, sustainable fitness]

For each exercise template, explain:
1) the target joints and the specific benefit of the exercise
2) a precise description of the execution including repetitions and intensity
3) notes on correct posture and possible variations for different fitness levels

The exercise templates should:
- cover various joints (e.g. knee, shoulder, hip, wrist)
- be suitable for both beginners and advanced users
- focus on everyday applicability and easy implementation without special equipment
- consider preventive and rehabilitative aspects