Im 48, and am currently training for a full season backcountry hunt with my son. The area we are hunting is high, rugged and steep. Ive also hunted easier areas, but I can tell you regardless, the air at 7,000 ft, on up is a whole lot thinner, and dryer,than anywhere in LA.
Any weight you can drop is weight you dont have to carry around with you.
Get in the best shape you can before you go. You dont have to be a marathon runner, but the more you push yourself now, the more it will help.
do something every day. Walk, run, work your legs. A lot. squats, lunges, leg extensions, leg presses, etc. Overall conditioninig is good, but your legs and lungs are your hunt.
Start slow, work into it. But start now. I dont know if youre backpacking in, or hunting fromyour truck. But put at least a 25# daypack on, walk, climb stairs, bleachers whatever to work the legs. Walk a minute, run a mnute. do that daily for 20-30 minutes till you can walk 1 run 2. keep at it, keep turning it up. Dont run with a pack on, bad for your knees.
Do full body stretch routines after every workout, it will help a ton with muscle soreness, and make you mor flexible for rugged country. You think that day pack is heavy, wait till u haveto pack out an elk. Alone, plan on 4-5 trips, 100# each of meat,cape and rack if you shoot a bull. Its work.
My training consists of strict diet, and a variety of workouts. Check out stewsmith .com for some great workout programs.
I lift, do calisthentics, run, and treadmill work with my 50# pack on. I mix it up every day, I never do the same routine twice.I work out 6 days a week. By August, that pack will have 80-90# in it, to get in shape for packing meat.
The more you put in to your hunt preparation, the better the hunt you will have. you may hike and glass for days until you find elk. You may not, but be ready.
There is no thrill to match the scream of a rutting bull elk coming in to your set up. If you get a shot and kill one, you've beaten odds of far more than 90% against you. Chasing the most majestic animal in North America with a stickbow, on your own is the best exerience you can get.