The Down Dog can be seen as the “first posture in the Yoga book”… but it doesn’t mean that it is not a very challenging posture for some! The Down Dog is a wonderful posture that has so much to offer, but this also means that it has many components to consider and be aware of at one time... our aim is to understand these components and integrate them together OVER TIME.
My first tip would be to understand how much value there is in a strong connection to the floor with both hands and feet. Listen carefully to the teachers’ instructions on how your hands and feet should connect with the ground and follow them to the best of your ability. If you struggle doing this for long, take breaks in the Child’s Pose. Rotating the upper arms outwards and drawing them into the back is a cue often heard in Yoga classes. Try to make sense of that in your body as this will dramatically increase the stability and strength of your shoulders.
If your Hamstrings (the back of the leg muscles) are stopping you from straightening the legs- don’t worry about it too much- just keep your legs as straight as YOU can on the day. If your heels can’t touch the ground, again- don’t worry about it- just do what you can and aim to improve this over time. “Walking” your legs (bending one knee at a time) may help you ease yourself into the posture and will help both the Hamstrings and Calf muscles get used to it.
Finally- make sure your ribs are not flaring out- gently draw them into your body.