Re: Physical training for shooting sports
I'm absolutley not a HSLD guy and in any given training evolution my skill-set ranges from "<span style="font-style: italic">Hey, that guy sucks</span>" to "<span style="font-style: italic">Okay, he's passably mediocre</span>."
Depends on the day, I guess ...
That said, here's my 2-cents:
In doing tactical training I noticed quite a bit of gain in my stamina, strength and coordination from doing a 4x-weekly CrossFit-type program. This started about 5 years ago. Strength training, long and short distance cardio, stretching, lots of the old-fashioned stuff, like push-ups, pull-ups, dips, crunches/sit-ups, Roman Chair, back extensions, leg lifts, etc. Stuff to build up your core. I don't "body-build" with the weights but do the basic lifts for baseline strength. Over the years I dropped a solid 55 lbs and that weight has stayed off, no doubt due also to maintaining a fairly strict diet. Went from 44 to 33 in waist size.
I found out early on - the hard way - that the diet and exercise program work together. A poor diet, aside from creating other health issues, will definitely undercut gains made in your workouts. So, ... don't let elbowing your way to the front of the buffet line at Pizza Hut be your only form of nutrition and exercise.
These days I find I can concentrate much more effectively on what I'm supposed to be doing and learning in the drills, instead of feeling like I'm going to stroke out.
I've also seen a variety of students in the courses I've taken: many were in decent or adequate shape, but some were not and had a hard time "staying with it" as the day(s) wore on. In some cases, while handling a weapon in the hot summer heat, being that out-of-shape could become a safety issue. Not passing judgment, just a (relative) observation.
While the slower classes like, say, Precision Rifle, don't incorporate many (if any) hard-cardio "run and gun" drills, the tac carbine course definitely do and you don't want to be "<span style="font-style: italic">that guy</span>" who flat-lined during the drills. Man, talk about slowing the class down ...
You can google up a lot of links to CrossFit or to similar "CrossFit"-type regimens, from just a few individual exercises to start off with, or whole workout programs if you feel up to it, or you can design your own routine.
Hope this helped and good luck.