42yr old male, average build and former wknd warrior backpacker reporting in w/ a question. (Geesh, I see I haven’t posted here in over 6yrs! :o)
I’m wondering if there is a somewhat established formula/schedule/school of thought for training for a specific backpacking trip distance/difficulty? Being a numbers guy, I’m looking to optimize my training hikes/walks for specific goals. I realize it may be hard to factor in the difficulty of one hike vs. another, or in my book elevation gain into the formula, but I had to ask the community.
I used to be a SUL gear weenie who spent more time researching and filling his basement w/ gear than going on the few 3-4 day weekend backpacking trips that he did, but I got away from the activity as my knee problems worsened over time (had a major motorcycle accident in 2007, lucky to still be here). Before I retired, I was this close to a knee replacement, but luckily I came across a Whole Foods Plant-Based Diet/Lifestyle and in the context of my severely damaged knee, it miraculously reduced the inflammation and swelling in my knee to the point that I’ve been out there walking and hiking again, not to mention the other benefits I’ve realized with the change.
Yesterday I completed a 16.6 mile loop maintaining a 2.5mph pace with breaks included, and hot damn do I feel good! Immediately after and for the remainder of the night my knees were achy and I got up out of my seat like an old(er) man, but by the morning, the knee aches are gone and all that remains is some slight muscle soreness in my glutes.
Unfortunately, I’m not willing to go to the gym to hit the StairMaster just yet given the pandemic to help with my training, and I live in a flat, concrete jungle. But I’m wondering, other than just doing more mileage, more often (I am able to get out for 6-8mi walks in the flat, concrete jungle where I live 3-4x / week), are there formulas on how to work up to given goals, perhaps ones borrowed from the running world? Heck, how would I incorporate stair work even if I chose to? I now have the time to train in an optimal way rather than try to fit it into a busy schedule and just deal with the consequences (:p) on a backpacking trip or hike.
For Example(s):- I want to complete a 20mi hike in X hours. In order to prevent burnout and optimize my fitness during training, I should start training X weeks in advance, ramp up training this way, and taper this way leading up to the day before your hike, and how would the formula change with multi-day hikes and repeated mileage per day?
The recent changes to my body have brightened my outlook towards ever backpacking again, but I realize I’m getting older and I enjoy pushing myself while I’m able to enjoy the trails. If anyone has pondered this question, I’d love to hear your thoughts on how you optimize getting into shape for your most challenging hikes/trips. Thanks!

