Yoga for inflexible people comprises a change of lifestyle which includes healthy diet, proper rest/ relaxation and regular yoga practice. This will help you to improve your flexibility to attempt advanced yoga poses which require a high degree of flexibility. People who need to improve flexibility for various sports can also include yoga after their usual training exercises. With regular yoga practice, a person with rigid body will gain flexibility of all body parts.
When starting your yoga practice you may feel that you are not able to do most of the asanas as it requires a flexible body. For example, most of the people are not able to sit comfortably in sukhasana (comfortable seating pose), vajrasana or padmasana which are essential for doing pranayama. You will not be able to get full benefits of yoga practice if you are not able to do padmasana. If you can sit comfortably in padmasana, then you are miles ahead in your quest for flexibility.
Yoga stretching can provide you the desired flexibility but it takes time and you should have strong determination to do regular yoga practice. For improving the flexibility at a faster rate, you can practice the asanas to increase flexibility at least two times a day. If your age is less, getting your flexibility back will be easier. Practice yoga stretches for 15 to 30 minutes at least two times a day. Flexibility improvement depends equally on your mental determination, diet and your yoga practice.
After your body is conditioned, focus on asanas for improving flexibility. Do yoga twice a day or do more repetitions. Yoga for inflexible people should focus on these asanas.
Whenever possible in the day, sit on your yoga mat in sukhasana, padmasana or vajrasana. You can sit in vajrasana even after taking meals. After dinner sit in vajrasana till you feel comfortable. Keep practicing half padmasana till you can get padmasana comfortably.
If you can eat a simple nutritious food, yoga for inflexible people exercises can tremendously improve your flexibility. You can expect good results in 4 to 6 weeks. But remember, be regular.