Absolutely! You can preserve muscle with a single session a week and start building muscle with 2. I recommend starting light with machines or bands. Prioritize compound movements (squat, row, press). Begin with 8-10 sets per muscle group per week and move to 12+ over a few weeks.

This article contains the link to the study and a little more detail: https://medium.com/in-fitness-and-in-health/our-muscles-degrade-as-we-age-here-are-3-strategies-to-prevent-it-527921ee95c2