Question

T’ai Chi is a form of martial art but you don’t have to go harder or faster to reap fitness and health benefits. (_______________). Instead, it places a premium on mind control, energy, sensitivity and intention. When your body is properly aligned and relaxed, it generates an amazing amount of power. These qualities give T’ai Chi a more spiritual tone than many other martial arts.

Q: Answer-T’ai Chi is a form of martial art but you don’t have to go harder or faster to reap fitness and heal...

The passage talks about the martial art Tai Chi and the missing sentence tells us that Tai Chi doesnt rely on brute force or speed and is further succeeded by the answer which clears what the previous sentence tries to convey that what instead it relies on.