Final answer:
The safe activity to include as part of the initial intervention for this client is low-intensity or skill-based activities.
Step-by-step explanation:
The safe activity to include as part of the initial intervention for this client is low-intensity or skill-based activities. These activities fall within the 1-3 metabolic equivalent (MET) range, which the client is able to complete without experiencing dyspnea (shortness of breath) or angina (chest pain). Examples of such activities could be gentle stretching exercises, light resistance training, or slow walking.