Rest days are not mandatory, that’s a matter of programming. /r/gzcl was started by a guy who has done more than 1,000 training days in a row.

Orthodox weightlifting has athletic/competitive roots, which invites a certain level of injury, but modern kinesiology and joint-centric lifting create a very different injury profile.

Work with a PT for detailed specifics, but 7 days a week lifting programs for seniors are possible and a decent starting point for decrepit middle-aged IT workers training for longevity.

This is mostly scientistic nonsense "modern kinesiology and joint-centric lifting create a very different injury profile."

The entire field of lifting is almost entirely scientism and marketing.

The biggest crock of shit is that there is this "proper form" and that injury is from deviation from this "proper form".

There is inherent, non-reducible injury risk in both running and lifting that both sides like to down play.