For survivors born after 1940 and before 1962, the SSA incrementally increases its definition of full retirement age. (sapling.com)
These leg exercises can be used by both men and women, and can help to tone the thighs, increase definition in the quads, increase strength of the legs, or build up the quad muscles. (best-leg-exercises.com)
With increased muscle, you gain increased definition and get more of a sculpted and lean look than cardio - alone can provide. (verywellfit.com)