Alexis Ren's ab workout on Youtube has 55 million views, but is it legit? Here's what happened when I did it every day for 3 ...

Discover how you can develop a strong core and sculpt your abs using just your body weight. With guidance from trainer Lisa ...

Discover the most effective 15-minute core workout routine from a certified trainer with 20+ years experience. Get defined abs in just 4-6 weeks with these 5 proven exercises.

How to do Kaitlin Heaney’s 5 standing ab exercises You’ll need a single moderately-heavy dumbbell for this workout. Heaney ...

Enter: this standing ab workout that trains muscles you might have ... Draw the weight back up and repeat. Do 10 to 12 reps. Then repeat on the opposite side. Why it works: Short explosive bursts ...

It’s a common fitness dilemma: You’re banging out crunches and planks week after week but still not seeing the strength and ...

I Did A 12-Minute Abs Circuit Every Day' Try This 20-Min Lower Body HIIT Workout Try This 20-Minute HIIT Upper Body Workout Try This 20-Minute Upper Body HIIT Workout Try This 20-Minute HIIT Total ...

Do 10-12 reps, then switch sides and repeat ... Incorporating these different ab workouts into your weekly exercises will help tighten your muscles. A strong core helps improve balance ...

Strengthen your core with these five standing ab exercises that target deep, hidden muscles for better balance, posture, and definition—no floor work needed.

As a fitness editor, I’m no stranger to an ab challenge, but this seven-minute workout really challenged my midsection. I felt my deep abdominal muscles (the transverse abdominis) switch on almost ...