It is best to start with a lesson where a teacher can show you how to adapt poses using props and help you learn the correct technique for performing the poses.

The good news is that yoga classes have never been more affordable. You will find them in small studios, health clubs and gyms. The hardest part is finding the class that’s right for you. Studios dedicated to yoga also promote more selfless practice. The same students return to class week after week, and the instructors usually follow a specific yoga discipline. Some activities are for beginners.

If you’re considering taking classes at a studio or health club, here are some tips for finding qualified instructors and classes that suit your needs:

Define your goals. You have chronic back pain or other physical limitations. A class based on Iyengar, with its emphasis on correct form and use of props, would be ideal. Want to improve concentration and reduce stress. Consider a class that includes meditation. I am looking for a challenging workout. Try Ashtanga lessons.

Ask about the instructor’s background. There is no national yoga certification program yet, although some disciplines have their own rigorous teacher certification programs. You need an instructor who has been practicing and teaching for a long time.

Check space. Choose spacious and well-ventilated rooms. Lots of props, sticky mats, belts, foam blocks, blankets and bolsters are also a good sign. Ideally, yoga rooms should be quiet, but this may not be the case in a gym where students have to struggle with loud music and the clanking of machines.