Hey Leo! Here are my responses to your questions:
“Walk for Vertical Meters”: You can continue walking on flat ground for the remaining time if you can’t go uphill anymore. The duration of 60 minutes includes warm-up and cool-down time, but not the time it takes to get back down. You can split the workout in different ways.
Max Strength Workout: There should be a short break between circuits, and the increase in weight refers to any external weight you add, not including bodyweight.
Pull-ups/Box Step up couplet: The workout should consist of 4 pull-ups followed by 8 box step ups (4 with each leg), repeated for 2 circuits. There should be a short break between exercises, but no break between warm-up, block one (core exercises), and blocks three and four.
Stretching: Focus on stretches that target the hips, hamstrings, and shoulders, and hold each stretch for at least 30 seconds.
Good luck with your training!