There are people younger than 51 with the same problems. So concentrate first on nutrition. Sometimes it just takes the right foods to give you that look you crave. It takes muscles to lift weights and, believe me, you have them. Cup hands chest-high, elbows out and parallel to floor.
Press palms together, hold five seconds, release.
Do three sets of 10. This injury should not be taken lightly. The groin area doesn't have a great deal of blood flow, which makes recovery very difficult. If you do not have access to specialized machines at a gym, you can sit at the end of a table, legs straight out in front of you. Have someone provide resistance as you try to push your legs apart.