The average age of participants has risen over the past few years, outfitters say, thanks in part to better gear and more-accommodating trips. Focusing on one leg at a time helps us better work the ...

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Squats train all the major ...