Jay Cardiello
CSCS
a celebrity trainer and in-house fitness advisor for KAILO and St. Jude’s Children’s Research Hospital
The Best Move to Work Your Lower Abs Is Also One of the Easiest to Do Incorrectly
The reverse crunch is a great way to work the muscles in your lower abdomen. Trainers share how to do it with the perfect form.

How to Do That *Extremely* Intense Chin-Up Celebs Are Doing on Instagram
Alison Brie and Jessica Biel are showing off the L-sit chin-up. Here's how to do one with good form, and how much strength it requires.

How to Use a Leg Press Machine Like a Pro, According to a Personal Trainer
Learn how to use a leg press machine with proper setup, form, and technique, according to a personal trainer.

Does Running in Place Count as Cardio? Fitness Trainers Weigh In
Can running in place really count as cardio? Fitness trainers explain the benefits of staying in one spot, plus tips to maximize it.
