I agree also with the bodyweight resistance exercises. Endurance trumps strength when it comes to hard living in hard times.
Various types of Push-ups> Hands close, Hands wide, Feet Elevated,One handed
Pull-Ups> Hands close, hands wide, palm grip inward, palm grip outward,One handed
Dips> done upright for triceps , done leaning forward for chest
HandStand Presses> heels against wall and head between 2 cinder blocks for full range movement
Squatting with just your bodyweight , harder version- One Legged Pistol Squats which take a lot of balance and stabilizer muscles
Rev Ham Glute Raises > will hit the often neglected hamstrings and lower back and can be done with putting your heels under a weight bar like this>
There are dozens of exercises for abs,obliques,and lower back online.
I'm not anti-weightlifting. When it comes to bodyweight exercises, you can get strong and have endurance too. Most bodyweight exercises are compound movements that hit multiple muscles so you get a lot of bang for you buck.
I was watching Navy Seal instructors on a BUDS episode and they were saying how they see many well built muscular recruits come in, the types weighing 220 lbs with no fat on them dropping out by the end of the 1st week while at the end of BUDS training they see the smaller 160 pounders still hanging in.
There is one exception to heavier guys that comes to mind who was an ardent fanatic of bodyweight training, Herschel Walker , he is 6'1" and weighed between 222-225 and his NFL team mates couldn't believe how he never got tired when they would all be exhausted by the 3rd quarter he would still be trucking.
Herschel took bodyweight exercises to a new level of extreme but what I believe made him was he started at the age of 12 , real young and by the time he was a senior in high school he was doing insane numbers of reps with bodyweight exercises. He would also drag a tire by tieing it with a rope to his waist and run up hill pulling it. I don't know why his book "Herschel Walker's Basic Training" went out of print but I used to check it out a lot at the library back in the early 90s.
Herschel also had a 365 lb. bench press when tested by his college football coach during his GA Bulldog days, that is phenomenal for a guy who just focused on bodyweight exercise, but then again a heavier guy like him would have a greater maximal strength than a smaller Bruce Lee type guy.
Real world strength is where its at , I saw a few big muscle guys into weightlifting when I was in my teens working in construction that didn't last long when it came to toting plywood , and lumber , they'd be hired in and gone after a month. They just had no endurance. There are a few exceptions but most hardcore bodybuilder types often are just "showy" and often are in office type or salesman type professions.
Most of these type of people with Herculean weightlifting type builds will perish fast after the SHTF if your wanting to compare the 2 types of physical training as to which is better.
There are 2 types of muscle fibers...fast twitch and slow twitch. The slow muscles are more efficient at using oxygen to generate more fuel (known as ATP) for continuous, extended muscle contractions over a long time. They fire more slowly than fast twitch fibers and can go for a long time before they fatigue. Therefore, slow twitch fibers are great at helping athletes run marathons and bicycle for hours.
Fast twitch fibers use anaerobic metabolism to create fuel, they are much better at generating short bursts of strength or speed than slow muscles. However, they fatigue more quickly. Fast twitch fibers generally produce the same amount of force per contraction as slow muscles, but they get their name because they are able to fire more rapidly. Having more fast twitch fibers can be an asset to a sprinter since he or she needs to quickly generate a lot of force.
Most bodybuilder types are using the fast twitch fibers compared to the endurance type trainers, therefore this probably explains why I've seen bodybuilder types fatigue so fast when doing the same movement over and over.
I worked in a kitchen counter top warehouse loading skids for a year when I was 23. I remember then a new guy got hired that was around 5'11" and 240 lbs , he loved talking about what he could do in the gym. He was always going to the water fountain and would sweat like a pig even though he had very little fat on him.After about 2 months he just quit without notice.
Especially for SHTF , if your into working out, put more emphasis on being able to handle your own bodyweight.