I am nearly 60 and take fitness seriously and my great motivator was , at 21 my cousin out packed me while getting a bull elk out of our mountains. I said never will I be outwalked again. I started by running during the off season and still run but also inline skate, hike, rope steers, mountain ride and keep a sideline farrier business
. Horseshoeing is very anaerobic and keeps your core very tight. I also am learning how to speed skip rope and if you haven 't tried it, it is also anaerobic and like inline skating is good for balance. I take supplements but I really don't see how they help much .Busted bones and arthritis goes along with riding broncs when I was younger-- my choice no regrets. I don't know how anyone would hunt our Rockies at my age without a plan.