Almost passed out using glute kickback machine
I love this machine for glute growth, I’ve been using it for months and steadily adding weight. I’ve been able to do 120lbs before. Did it today and at the end of the set (10 reps each leg) I felt awful, so lightheaded. My vision went completely black. Didn’t completely pass out though, was able to lean against the machine and let myself sit down gently without falling.
Why would this machine cause me to pass out? Is my form wrong, like am I leaning forward too much and putting pressure on my abdominal aorta? Is there a way to fix my form to not be leaning forward too much? any other tips?