In reply to elliptic:
> Disagree, any targeted conditioning is better than none.
Well not necessarily. You could A) get injured or B) suffer from overtraining effects during the week you're actually intending to perform.
> Yes you won't get deep underlying adaptations but even three or four targeted sessions over a couple of weeks is enough for me to feel a difference in movement patterns and engagement.
Anecdotal. Whether you get any benefit will be heavily dependent on what you were prior to starting targeted sessions - could be muscular, could be a neurological adaption ( which is still worthwhile, though ).
> Regarding pull-ups on tools though I actually wouldn't bother, or at least do them with foot support so you can manage plenty of reps. No pure ice route that I've ever done needed that much pure strength, what counts is endurance and learning to stay relaxed as much as possible.
Agree here, I would focus on drills you might actually get benefit from and that target energy systems with short adaption times, eg
- Isometric axe hangs, with added weight if necessary
- Single arm hang with pull ( Hang on ice axe with one hand, feet supported, reach up with the other hand. Use a dumb bell in the empty hand if necessary )
- Box step up (at least 12") with loaded pack or barbell
- Hill climbs with water jugs or loaded pack
- Deadlifts
- Leg raises hanging on ice axe, and other core drills
- Climb underside of ladder with your tools
I'd be skeptical of achieving any aerobic capacity gains at this stage unless you've been training those energy systems for a while.