Have fitness questions? Fitz has your answer. Our ThatsFit.com fitness expert -- and now your own virtual personal trainer -- will help you get fit, increase your overall health and do it in a fun way. Drop your questions here in the Comments section below and we'll choose two per week to publish on That's Fit! Learn more about Fitz here.

Q. Hey Fitz. I'm heading out for a week's vacation on a cruise ship next month, and worried that once again I'll gain almost ten pounds while gone. That's what I've done the last few times I've gone on a cruise. How can I get around it? There is awesome food everywhere! Susan.

A. Susan, Susan, Susan. I'm shaking my head. The deal with vacations, cruises especially, is that they're a time for you to relax, get away from the daily grind and have some fun. Pigging out and gorging are simply not what you should be focusing on...wherever you are! Yes, there is a lot of tasty food on cruise ships. There is also a lot of yummy things available at your local grocery store every single day! That doesn't' mean you should run through the aisles like a lunatic shoving everything you can get your hands on into your mouth. Just because food is THERE, just because food is FREE, doesn't mean you have to eat it.

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Yes, we all do crunches. Crunches, crunches and more crunches. I do them myself, and think very highly of them. But! If you'd like to change things up and work on sculpting your fancy torso in new way, give these skills a try.

• Prone pikes. Place your feet on a stability ball or on some Gliding Disks, with your hands on the floor in push-up position. Back flat. Lift your hips straight up to the sky while keeping your legs straight. Once you've elevated your hips as high as they'll go ... lower back to push-up position. Repeat at least eight times. Add one rep each day you do these. Very advanced!

• Front kicks. Stand with one foot in front of the other with feet shoulder width apart. Lift the front leg by the knee first, and follow to extend your foot up high. You'll engage your hip-flexors and rectus abdominus as you raise that leg up high. Kick within your comfortable range at first, but challenge yourself to kick higher along the way. The higher you lift your knee, the more you'll work your abs. Switch your stance and repeat on the other leg. Kick at least 20 times per leg. Beginner to advanced level exercise, depending on how high you kick.

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