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Most people have no idea I'm 41, and instead think I'm in my 30s. Balding and grey hair show I'm not in my 20s ;) My 'secret' is I workout every single day . I might do heavy weight training, sled pushing, surfing, or a spin class. It doesn't matter as long as I do something physically challenging. I also follow an 80/20 rule on eating paleo-ish. Mainly I try to avoid processed foods, but I'll still eat a pizza or go…
Some folks are able to lift heavy weights frequently, and that's awesome. I'm jealous. But here's a comment directed at people who've tried that and hurt themselves. For years I tried to lift heavy. Big compound barbell lifts. In my early 20s it was OK, but by 30 I started hurting myself. I always warmed up fully, but kept tearing things. I tried eating more, eating better, more recovery, everything I could think of.…
If you want to train low rep after 30 you have to do just 1 big lift per training session, and no more than 3-4 sessions per week.
A related problem is that low rep lifting burns little calories (training volume is not much) but requires quite a surplus to recover. So, as your metabolism decreases with age, it tends to make you fat.
After 40 anything below 8 reps is too low and most exercises should be done between 8-12 reps for big lifts and 12-15 reps for small lifts.
Also, unless you need to demonstrate low rep strength, as long as you increase the weight in the bar, you will get stronger.