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. Hi Fitz. I'm a fan of NBC's The Biggest Loser show and am curious what you think of those calorie counting BodyBuggs the contestants are wearing. Do they work and are they worth the money? Alison

A. Great question Alison. I too enjoy watching The Biggest Loser, as I love watching people lose weight. The BodyBuggs by APEX have been a great addition to the show. I know this, because I own and frequently wear one myself. The BodyBugg is a really cool tool, and I think it is a really good investment.

The BodyBugg armband is worn around the upper arm and based on several factors, measures (quite accurately) how many calories you burn while wearing it. It also goes along with an extensive Internet program which allows the users to see their caloric expenditure. You literally get a graph of your entire day, and can see to-the-minute details of how many calories you've burnt. For example, I was sitting with my two year old son in the front yard today when he took off down the sidewalk. I chased him passed several houses, we loop-de-looped around a few trees and then returned home. At 1:40PM today my graph said I was burning 1.6 calories per minute. At 1:42PM today, I was burning 6 calories per minute. Neat huh? That was the exact time Parker and I had our little game of chase. On this note, you can measure how many calories you burn during 30 minutes of kickboxing class versus 30 minutes of stair climbing. Compare the two and decide which is a better workout choice for you.

Beyond the calorie burning element, the APEX program helps you create goals and guides you on how to plan your meals. One program allows you to input exactly what you've consumed throughout the day, and measure it against what you've burnt. Consistently creating a deficit will lead to weight loss. One of my clients who uses it says that she inputs her information when she comes home from work and at that point knows if she needs to stop eating for the day, or if she has room for some dessert. Sometimes the results get her motivated to go take an extra walk around her neighborhood before dark.

I love my BodyBugg. It's comfortable, discreet under clothing and keeps me honest. For those who can't afford a personal trainer, the BodyBugg acts as a super substitute. It comes with programs to help you lose weight, lose fat, build muscle, and improve your eating habits. Plus, the APEX staff is ridiculously helpful to all of their customers. Give it a go Alison. You have my blessing. Fitz

Q. Dear Fitz. I have a rather unusual problem. After multiple abdominal surgeries I am having a terrible time trying to get my abs in shape. My surgeon refuses to let me do any sit-ups or crunches, because of my high risk for incisional hernias. 13 surgeries in 10 years, and I am only 43. Losing weight has been a nightmare also since all of this. I am about 40 lbs over weight and cannot get it off. I eat one balanced meal a day. The only "sugar" I add, is to my coffee in the morning. I am a pilot and really need to lose this for the sake of not only my health but my occupation. Any ideas you have would be greatly appreciated. Respectfully, Matthew

A. Yeesh Matthew! I'm so sorry you've had to deal with so many hernias and surgeries. How painful and frustrating that must be for you! First of all, I'd like to let you know that I am not going to argue with your doctor. If the surgeon says no crunches, then Fitz says no crunches as well. He knows your condition better than I do. Fortunately, the ability to do or not do crunches has very little affect on your ability to lose weight. Weight loss has more to do with the food you eat, and the amount you move your entire body as a whole.

My advice for you and any other reader dealing with medical issues which have set you back physically is this. Seek out both a local nutritionist and a physical therapist who specializes in weight loss. I can't provide you with the same advice I'd give to the general healthy population. You certainly need help, but you'd be much better off getting with the professionals in your area who can learn all there is to know about you. That way, they'll not only help you lose the weight, but they'll help you do so without sustaining any more injuries.

Just like physicians, my rule is 'first do no harm'. I'd hate to give you advice that would be contradictory to your specific medical conditions. Ask your surgeon or regular doctor for referrals. I'm sure they'd be happy to point you in the best direction. Best of luck Matthew. Let me know how it goes.

Punches & Kicks,