Curious about other’s thoughts. I read a lot about how people log tons of miles running ~flat terrain. A lot of training “manuals” / “plans” focus more on hilly / inclined terrain / treadmill. Given many of us target heart rate training, and slow twitch vs. fast twitch fibers, wouldn’t walking on steep 10%++ treadmill settings at various speeds (walking up to running) be far more specific to mountaineering than flat running assuming you hit the same HR Zones?? Also, the incline triggers more muscles and is less impactful on joints. I ask b/c I am an inefficient runner, but pretty efficient at incline loaded pack hiking. (80% of my miles are walking / incline walking / loaded pack training) For example, depending on how “fresh” I am, a 5 mph 5 mile run will have my HR btw 135 and 170 (170 usually post heavy leg weight days), whereas in time trials carrying 50 lbs on 20% grade terrain I can ascend ~1,350 ft in just under an hour at an average HR of 110. http://tpks.ws/QZCZGPM42R2YPTI4FEYTRMETSU
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