Not sure your workout regimine but I’ve found compound lifts make for shorter workouts and provide the most benefit as we age, particularly squats, deadlifts and rows.

So many people think their back hurts because they’re old when really their back hurts because it’s weak. I started lifting at 47… that was 8+ years ago. I feel so much better and ache so much less in my 50s than I did in my 40s, and surprisingly you can really add muscle and strength even when you’re older, if you want to push yourself. I never anticipated such gains were possible but working hard combined with eating and sleeping well still pays off.