Lengthen your poles before a descent and plant them actively ahead of you: that cuts peak knee load by 12–25% — the cheapest knee fix in the mountains.
The two scree-descent techniques: the rocking step slides with loose material under control, the braking step lands heel first on an almost straight leg on firmer ground.
The tear-webbing inside a via ferrata set that decelerates a fall into the steel cable. To EN 958:2017 it keeps impact force under 6 kN at 120 kg — and is scrap afterwards.
The clock time at which you turn around — no matter how close the summit looks. Fixed before you set off, so your ego doesn't get a vote up on the ridge.
The two planning numbers in the mountains: elevation gain drives effort more than distance, and the times on yellow signposts are pure walking time — breaks not included.
General
Terms from training theory that apply in every sport.
BMR is your basal metabolic rate at complete rest; TDEE is total daily expenditure including everyday movement and training. Nutrition targets always work off TDEE.