If You Can Do This Many Sit-Ups After 55, Your Core Endurance Is Exceptional

Sit-up test after 55: A board-certified wellness coach shares benchmarks for men and women, plus safe form tips to improve.
Hosted on MSN

100 Push-Ups, 100 Sit-Ups, 100 Squats, 10KM Daily—for 100 Days Straight

I trained like "One Punch Man" For 100 days! This included doing 100 push-ups, 100 squats, 100 sit-ups, and a 10km run EVERY SINGLE DAY..... I ended up changing the routine a little to suit my needs ...
Health.com

Sit-Ups vs. Crunches: Which Exercise Builds Stronger Abs?

Dr. Shields is a physical therapist with a background in English Literature and a passion for healthcare and education. She hopes to combine her clinical expertise with her love of writing, establish ...