This is said - make big claims about healthy and no injuries, people get injured, attack the people so what actually happened to them doesn't interupt your absurd claims.
This was the only post I could find in the thread from you where you linked to anything:
Weightlifting Lifting And Endurance Cycling
No mention of studying injury rates.
"Specifically, adults with high-intensity exercise levels, such as 30-40 minutes jogging for fives days per week, appears to keep your cells nine years younger than your birthday cake would suggest."
https://www.iflscience.com/health-an...most-a-decade/
No mention of studying injury rates.
"As we age, two forms of exercise are the most important to focus on: aerobic exercise, or
cardio, which gets your heart pumping and sweat flowing, and
strength training, which helps keep aging muscles from dwindling over time...Strength-training moves like tai chi are best for preserving muscles from age-related decline...(it later mentions planks, bodyweight squats, and 20 lb dumbells"
https://www.businessinsider.com/best...w-aging-2018-4
No mention of studying injury rates.
"Subjects performed 12 different exercises including the chest press, leg press, leg extension, leg flexion, shoulder press, lat pull-down, seated row, calf raise, abdominal crunch, back extension, biceps curl and triceps extension."
No mentions of the specific higher risk lifts I mentioned - squats, deadlifts, bench press. A long list near the bottom of things you should do to be cautious about not injuring the clients.
https://www.unm.edu/~lkravitz/Articl...resistUNM.html
No mention of studying injury rates.
Says that older adults can gain muscle mass by lifting weight but no mention of the actual lifts to do other than a ancedotal "human interest" person who I don't think was even in the study doing very low weight.
https://www.npr.org/2011/02/21/13377...-pressing-iron
No mention of studying injury rates.
Says "strength training" but is completely lacking in any specifics of what exercises they used.
https://www.ncbi.nlm.nih.gov/pubmed/14552938
No mention of studying injury rates.
Exercises seem to be bodyweight and light dumbells, ankle weights, wrist weights.
https://www.cdc.gov/physicalactivity...g_stronger.pdf
-------------------------------------------------------
You have not linked to a single study on injury rates.
The articles you posted recommend things like walking to light weights with a few weight machines.