Curious to know how celebrities squeeze fitness into their daily lives? Want to know the secrets of the stars? Bi-weekly our That's Fit fitness expert Fitz sits down with the celebs we want to know more about, and digs out their great and not-so-great methods to staying healthy.

Two-time Dancing with the Stars Champion Cheryl Burke has had quite a year. Five tiny pounds on her little dancer's body caused tabloid hysteria, and now she's starring in her own series of workout DVDs called Disco Abs. She came clean with me on the inspiration behind this belly blasting workout, her infamous weight gain, and who she'd love to partner up with on DWTS. She even shares expert advice on dancing in stilettos; definitely read it before you try it.

Fitz: Tell me about Disco Abs.

Cheryl: It's a series of three workout DVD's set to disco music. The workouts are based on a bunch of fun dance moves, and that's what I love most about them. They're so much fun that you forget you're working really hard.

Fitz: Fun is vital to people sticking with it. And what component is directly geared towards abdominal training?

Celebrity Fitzness Report: Cheryl Burke(click thumbnails to view gallery)

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With the Olympics coming up, the use of supplements to enhance performance is big business. I asked my pal Jose Antonio, PhD, Sports Nutrition expert what was hot and gave me this scoop. Besides safe and effective supplements like creatine, protein powders, and even fish oil, there's a new kid on the block. It's called beta-alanine!

Beta-alanine is basically an amino acid that has been shown to help fight off the fatigue-promoting effects of lactic acid. When muscle pH drops from intense exercise, beta-alanine helps buffer this increased acidity. Technically, it is muscle carnosine (which is made from beta-alanine) that does the buffering.

What could beta-alanine help as far as Olympic events? Sports like wrestling, the long sprints such as the 400 meter dash, boxing, and team sports in which there is a lot of sprinting can be helped. In fact, a recent study from the International Journal of Sports Medicine proved that beta-alanine significantly improved muscular endurance. So for those of you seeking that extra performance edge, look out for beta-alanine!

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How do naked push-ups sound to you? Well, let me tell you, I just got off the phone with a colleague and friend, Dr. Jose Antonio, Ph.D., FACSM, CSCS, Chief Executive Officer of the International Society of Sports Nutrition (ISSN) and one of its co-founders. We were talking health and fitness when he brought up something a fellow fitness pro, Suzy Favor Hamilton does and recommends on a regular basis.

You got it. Naked push-ups.

Before showering each morning, Suzy -- an elite athlete, makes a habit of dropping and doing 20 push-ups. It's simple and it may sound silly, but getting down and earning a good shower each day seems like a great idea to me!

Naked push-ups are smart for two reasons. They create a habitual time and place for you to make push-ups happen. Second, it seems as they would force you to get in touch with your body at least once each day. Do you like the way your legs hold firm as you go through the motion? Could you work on trimming down your tummy so it doesn't touch the ground first? I imagine that naked push-ups would give most of us the motivation to choose the right foods and pursue even more exercise as the day progresses.

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