There is no definite barometer for an exercise that must be performed by seniors. That is because seniors have been unable to do heavy things even those who are able to sweat like when doing exercise. Doing sitting on a chair activity is a good start to ensure what kind of exercise can be done by seniors when sitting on a chair. Then you can discuss it with seniors.
To start chair exercise seniors, you can try to discuss it with seniors about the activities that will be done. Give a simple understanding of what will be done with chair exercise. After getting a positive response from seniors, you can prepare the equipment in the form of a comfortable chair to sit on. Also, prepare water for seniors so they do not get dehydrated when doing activities that require extra energy. Do not force seniors to reach the target you made, but you can help him to do the best from this chair exercise session.
To do chair exercises seniors, you need to have someone by your side. If you do it alone, think about the worst thing that could happen. It doesn't have to be a professional trainer but a close relative can also play a role as a professional trainer. It would be better if seniors get to know their close companions when doing chair exercises. This is so that seniors do not feel reluctant when they need help. But what needs to be noted by the facilitator seniors is how to perform chair exercise procedures so that they do not have bad consequences and remain safe for the seniors to do. You can study the tutorial like a professional but apply it as someone who is familiar with seniors.
The decision to want to do chair exercises can only be made final by the seniors who will do it. You cannot force your wishes and also your family or from medical staff to seniors do chair exercises. Because if forced continuously, seniors can get stress and this is not good for their health. If seniors refuse to do chair exercises, you can discuss other alternative activities with seniors to keep going in accordance with the rejected chair exercise goal.