Cycling and walking.

Cycling and walking are both good exercises that can improve your health, but they have different benefits: 

Cycling: 

Cycling can burn more calories than walking because it uses more muscle groups, requires more effort, and has a higher oxygen consumption rate. 

It can also help you build strength, especially in your core and upper body. Cycling can be good for knee joint pain because it strengthens the muscles around the knee. 

However, cycling requires proper form to avoid strain, and it may trigger back pain, numbness, or nerve damage. 

Cycling may also be limited to people who have learned how to ride a bike and have access to one.

Walking :

Walking is more accessible than cycling because it doesn't require any equipment and can be done anywhere. 

Walking is a weight-bearing exercise that can help maintain bone density. 

It can also improve your energy level and ability to heal by increasing your breathing rate and helping your bloodstream eliminate waste products. 

Walking can also help reduce symptoms of stress, anxiety, and depression. 

 Cycling is better than walking for 30 minutes if you want to burn more calories, work your muscles better, and improve your cardiovascular fitness.