Author Archive | Brian

Are you burning the calories the machine thinks you are?

By Pandora Williams
Weight Loss & Wellness Coach / Weight Loss Boot Camp Instructor
As someone who used to weight 420 lb. and has won the battle against obesity I can tell you that a large part of that battle has been numerical for me.

 

At the beginning of my journey, I counted everything. Every calorie I ate, ever calorie I burned. I paid attention to my heart rate, the distance that I covered, the duration of time that I exercised and since the beginning, one of the biggest discrepancies I saw in numbers was in the amount of total calories burned that cardio machines reported.

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Today I spent 65 minutes on an elliptical doing a cross country program that varied the resistance from anywhere from level 3 to level 18 during my workout. When I was done, the elliptical reported a total calorie burn of 907 calories. The machine is taking into consideration my age, weight, time, and pace when determining my calorie burn.

The Fitbit Surge on my wrist calculated that same workout at 66 Minutes, 5596 steps, and with an average heart rate of 130BMP during my workout calculated the same workout at 595 calories.
My target heart rate zone as a 38-year-old female is between 93 and 157 beats per minute. So I’m pretty okay with working out at that intensity for 60 minutes. My heart rate is typically in the high 140s during harder parts of my workout and drops as low as 125 during the recovery stages after my intervals.

So the same workout according to the cardio machine burned 312 calories more than my fitness tracker. That is an outstanding 41% difference. We’re not talking about 20 calories here, we’re talking about the same amount of calories as the 6 inch turkey and provolone on wheat with some of the bread scooped out that I’m eating for lunch today.

As a weight loss and wellness coach, I am constantly encouraging my clients to keep food and exercise journals. Studies have proven that those that keep food diaries are 50% more successful in weight loss than those that don’t.

I usually recommend my clients keep a separate exercise journal so that they are tracking numbers that are more relevant to their exercise routine. Mainly we want to insure that we are seeing the progression and that the routine is indeed getting your heart rate into your target heart rate zone.
This also helps insure that there is no confusion when using applications such as MyFitnessPal – where the application will add the calories burned in a day as I am often asked by clients if they should eat those extra calories.

Understanding how we create caloric deficits and what sort of deficits you need to produce at the end of the day is an important part of the weight loss journey. Currently in the fitness industry we recommend that the average person trying to achieve weight loss attempt to create caloric deficits of 500-1000 calories a day through proper nutrition, activity, and exercise.

Basic cardio recommendation for someone trying to lose weight is 60 minutes of moderate cardiovascular activity 5 days a week for a grand total of 300 minutes a week.

I teach my clients that something as simple as adding one glass of wine (an average of 123 calories per 5oz serving) per evening without adding exercise and activity that counters it can add up to 3,690 calories a month, a total of 44,280 calories or – 12.6 pounds a year.

If I was tracking calories and activity and depending on a cardio machine to get my caloric burn information and it was off by 300 calories a day on average – that’s an error of 9,000 calories or – 2.5 pounds a month. This could make an awfully big difference in my calculations and expectations if I’m not careful.

This can have a big impact on weight maintenance as well. If I think I am burning 300 extra calories a day than I might eat more thus hindering my weight maintenance by causing unexpected gain.
Everyone is different; each person’s body has a unique base metabolic rate and their metabolism burns differently. Each of us has our own fitness level as well as our own level of cardiovascular endurance. The fitter you become the lower your resting heart rate goes and the harder you have to work to get your heart rate up.

As an example, last Monday in my weight loss boot camp class one of my clients and I wore a fitness tracker that tracked our heart rates and calorie burn during the workout. My calorie burn during the class was close to 250 while hers was nearly 600. Why is she getting so much more out of the workout than I am? Because the workout is a lot harder for her at her fitness level than it is for me at mine and thus, since her body is working harder, she is burning more calories than I am.
So should you trust the calorie burn indicated on your cardio machine as part of your calorie deficit for the day? In my professional opinion, survey says EHH.

Even though the makers of cardio equipment will tell you that they are constantly improving the technology behind the calculations you see on the machines you are likely seeing a 20-40% calculation discrepancy.

While the most accurate way to measure the amount of calories burned during a workout would be to measure oxygen consumption during exercise using a machine that measures ventilation and the carbon dioxide concentration of inhaled and exhaled air to calculate V02 max. These tests can be time-consuming, require appointments and can be costly. Fitness professionals are trained to be able to estimate V02 Max in a field setting using a 1.5 mile run, 12 minute run or 1 mile walk test.

If you don’t have access to these tests or a personal trainer and calculating your calories burned against your calories in is important to you I’d recommend investing in a reliable heart rate monitor or activity monitor that has a heart rate monitor built into it to get a more accurate number and insure that your time and calorie expenditure journaling effort is as helpful to your overall goals as it can be.

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Why That Fitness Challenge Might Be A Bad Idea

By Pandora Williams
Weight Loss & Wellness Coach / Weight Loss Boot Camp Instructor

How many times have you seen a Facebook post asking you to participate in some sort of physical challenge? Perhaps it was a plank a day, or a squat a day, or the thirty days of lunges challenge. How many times did you think about it and then decide that you couldn’t do the unimaginably large number of repetitions required each day in order to complete the challenge?

You probably made a good decision and let me tell you why…

Challenges are great. When they are designed correctly. We  have a weight loss and fitness challenge at Wilmington Lady Fitness and I am very proud of the positive long term behavior changes we see as a result. Challenges are fun. They increase awareness and open the doors to education by teaching people important exercises and making them more health conscious.

But not all challenges are created equal and some challenges can be counterproductive to your health goals. I’m not a fan of exercise specific physical challenges. I believe they pose some risks that just aren’t worth the benefit for the average individual.

Challenges encourage numbers and not technique. As a professional fitness leader I can tell you that when we coach and cue an exercise we are looking for muscle fatigue and only pushing the muscle to the point of fatigue and perhaps just a smidgen beyond it.

Fatigue is an important thing to understand and recognize when you are doing weight and resistance based exercise. Once your musculoskeletal system fatigues out, your nervous system follows and when fatigue takes over your form suffers as a result. You can’t hold your original position any longer so you have to move and compromised some where in your body to allow you to keep going. You’re able to continue what you are doing, but you are doing it with improper form now.

Basically, whatever bio-mechanical change you just made to allow you to keep preforming that exercise is being encouraged and strengthened by continuing to preform this misaligned movement. We’ve hit a point of demolishing return. Preforming more of the exercise is no longer beneficial because it decreases form and technique hence, proper body bio-mechanics.

Let’s talk about why we exercise for a moment…

We exercise in order to increase our physical endurance, to allow us to preform daily tasks without experience fatigue and discomfort. We exercise so that when we have time off, we’re able to do the things that we want to do. We exercise so that if an emergency happens, we’re physically capable of dealing with it. We exercise to increase our general health.

So what you have to ask yourself is, does my lifestyle require this type of long duration long repetitions of this particular exercise?

If you have a situation where it does, then the challenge your are considering might be a great additive to your fitness routine. If not, then you would likely benefit more from an exercise routine that did accentuate your lifestyle and goals and not propose the risk of damaging your form, technique and proper body bio-mechanics.

Let’s use the recent 30 day squat challenge as an example for a moment.

30-day-squat-challengeSquats are a great exercise. They are very important to functionality and fitness. They strengthen your quads and glutes. Whether you decide to do a squat challenge or not, you should be doing squats on a regular basis when you exercise.

But there are very few situations in which I would throw someone who is just starting out with squats into the 30 day squat challenge that has recently surfaced on the internet.

Here’s something to consider. The most common errors you see during resistance training are, improper form in order to lift more weight, using momentum to complete and exercise, doing the exercise too quickly, and not maintaining a neutral spine. How many of these errors do you think you would make after let’s say 100 continuous squats.

 

Let’s try something. Stand up for a minute and let’s try and do a squat.

  • fitness-levelPlace your feet just a over shoulder width apart.
  • Make sure your toes are facing out just slightly.
  • Now stand up straight, pull your shoulders back, push your chest forward. This is easily achieved by putting your hands on the back of your head and pulling your elbows back.
  • Tilt your hips so that the top of your booty rolls upwards towards your back.
  • Keep your back in a neutral position and keep your knees over the center of your feet.
  • Take a deep breath and then exhale as you slowly bend your knees, hips and ankles lowering your body as much as you can and trying to achieve a 90 degree angle.
  • Keeping your weight balanced on your heels and pushing from the heel in an upward thrust, lift your body at the same pace that you lowered it and return to your start position.

Alright you just did one squat. Are you SURE you did it correctly? If you are, are you sure you could do it correctly twelve times? Twenty five times? Fifty? One Hundred? Are you positive that you do the squat so well there is absolutely no need at all for any modifications?

Your body mechanics in doing a squat largely determines how a coach modifies an exercise for you. With someone who doesn’t have a lot of experience with squats I might start using a stability ball, bench or chair. This will help build some minimal leg strength.  For others I might using a squat assist machine to help them learn the proper form. For more advanced squatters I might put weights in their hands or add a compound movement with their squats like bicep curls or front raises.

I would never throw a client into the number of repetitions that a challenge like the 30 day squat challenges suggests. I usually start with one to two sets of eight to twelve repetitions and then, based on each clients performance and how quickly their body adapts to the exercise and how quickly their form and technique improves, begin to progress the exercise to their needs.

Go back and follow the directions for the correctly preformed squat again. Now consider all the modifications that I just described might be needed with different clients and different fitness levels and ask yourself is your squat is so perfect that it needs no modification and if your form and endurance is so good that you can confidently do fifty squats on your first day. Because if you can’t do fifty squats perfectly on day one why would you even considering progressing to more the next day?

I had a couple of clients a few months ago that performed two hundred and fifty stability ball assisted wall squats with correct form over the course of our workout. They were done in sets of twenty-four squats at a time and spaced out throughout our forty give minute workout. That’s not a feat I would throw at someone that hadn’t been training with me for quite sometime or someone that only had a couple of weeks experience at doing the exercise. One of them had been working with me for seven months and the other for about five.

Let me tell you one of the general and most fundamental rules of strength training exercise…

Never work the same muscle group two days in a row. When we build muscle we stress muscle. So when we exercise to the point of muscle fatigue we created little microfiber tears in our muscles. When they heal, they heal bigger and stronger. But they need rest to heal. You can’t just tear them day in and day out.

Avid exercisers and those that have experience with strength training will tell you that if you workout five to seven days a week you  do it on an exercise program that targets different muscle groups each day.  If you are working out three to four times a week you’re usually performing a total body workout each day or following a pattern of upper body, lower body, total body, core.

You’ll get much better physical and weight loss oriented success if you do four sets of twelve repetitions of the version of the squat that you can physically maintain proper form and technique on and then move on to increasing your skill in a different exercise that uses the same muscle group differently like a lunge. If you are working out at home and want to add a little cardio, throw some modified jumping jacks or some jump rope in between the sets to get your heart rate up and burn extra calories during your workout.

The big questions you should be asking yourself before you take on a new fitness routines are…

  • Does it help me achieve a personal goal I am working on?
  • Will it help improve some aspect of my lifestyle?
  • Does it follow the basic rules of strength and resistance ( or cardiovascular ) training?
  • Is it something that I can maintain? Is it realistic to my fitness level?
  • Is it safe and do the benefits outweigh the risks involved?
  • Is it going to be fun?

If any of your answers are no, you might want to reconsider the change you are about to make and consult with a fitness professional to get assistance developing an exercise routine that will better suit your needs.

When clients ask me if I think they should do a 30 day squat challenge or a plank a day challenge I tell them that unless their goal is to finish a physical challenge that proposes higher risk of injury than necessary to achieve results, encourages improper form and technique, and is over in thirty days leaving them to figure out what part of their body they are going to over-train next, a total body work out plan would probably be a much better option.

I did a 30 day burpee challenge once at the request of a family member that was asking for moral support and participation. The only thing it did was make me grown at  the mention of burpees for years to come.

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