Unlike sports massage, deep tissue massage doesn’t have such a specific focus. It’s often used for people with chronic pain that has developed from any of many different sources. Or it can also be used to help with rehabilitation from injury (not always sport-related).
In addition, it helps with a variety of other conditions and situations. These include helping to alleviate issues with RSI, Fibromyalgia, and postural problems.
As the name suggests, it targets the inner layers of the muscles. It’s used to treat muscle and tendon injuries, pain, and stiffness in the major muscle groups and joints. It involves applying firm pressure and slow strokes to reach deeper layers of muscle and fascia.
Undoubtedly, it is a more rigorous form of massage. But provided the practitioner is skilled, it shouldn’t reach a point at which it becomes painful.