I would say light enough so you don't perform a valsalva maneuver (holding your breath and trying to push out).
Ryan, thank you for the info. Is what you're describing the same as Pavel's teaching about, when in the strain portion of the lift, releasing the breath through pursed lips and emitting a "tssss..." sound?
If that is correct, then what you are suggesting is a level of exertion that does not necessitate such breathing, yes? So, smooth inhalation / exhalation?
Interesting that all the old bodybuilders recommend lifting like this: smooth, complete reps with no "strain" (i.e., valsalva maneuver).
This past May I had what was diagnosed as a TIA / mini-stroke.
For several minutes I had trouble putting a sentence together ("word salad") and I was told I had a slight face-droop on one side.
I was given TPA ("clot buster") and spent 2 days in hospital for tests and observation.
Ultimately, symptoms were "cryptogenic" (Of unknown origin).
I am almost 59 years old, about 5'11", 180ish.
Until that day, every physical and blood test of my life ended with, "whatever you're doing, keep doing it".
Karate as a youth and in young adulthood, long distance jogging (up to a couple marathons) as a young adult, race walking which turned into HeavyHand walking, a few years of Aikido, swimming laps, using C2 rower, daily KB swings, little bouts of lifting but never stuck with it long enough to get very far, yeah, I guess that's about it.
One thing that was different that morning was that I was pulling a hex bar for some modified DLs.
Very light for anyone else here, and not much of an effort for me, (225lbs) but I had not done it in awhile and figured maybe I'd ease into a GTG habit.
I used Pavel's "Tsss...." method of tightening up and releasing the pressure like a tire with a hole.
I related this one difference to all the docs, not in that level of detail, but I think I did mention valsalva.
No one correlated it with anything.
Thanks for the info Ryan!
Wishing you best of health Kirk.