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The BIGGEST CrossFit Training Mistake People Make

The BIGGEST CrossFit Training Mistake People Make

You’ve been heading to your “Box” religiously several times a week for the past couple of years and have made pretty good progress. You’ve gained muscle, lost fat and improved your cardiovascular fitness. Hell, that might even be an ab…

But something strange has happened. Your MetCon workouts, the ones that leave you gasping for air and half dead on the floor. MetCon workouts are a staple of most CrossFit programs, and arguably what most people think of when they think of why CrossFit has stagnated. Maybe even regressed. You were told that you “needed a bigger engine” to start progressing again.

So you’ve tried everything: lifting more to get stronger, doing more power work to get faster, even doing more “metabolic conditioning” work. None of it has seemed to help. You start out during MetCons and Hero workouts strong but find yourself “gassing out” early and unable to maintain power output as the MetCon goes on.

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    Photo via: Runar Eilertsen

    What’s going on Here?

    You’ve probably neglected the one area of fitness that would actually help your performance – your aerobic system.

    In my experience, many of the best CrossFitters have a very average aerobic system compared to their strength and power capabilities.

    This happens because the CrossFit community tends to focus on building the aerobic system through MetCon workouts, essentially high intensity interval training, and not dedicated aerobic work. While this will improve the “conditioning” of beginners and those with poor aerobic systems/fitness to begin with, eventually using strategies like the famed Tabata will stop working and may actually be what’s holding back your performance.

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    Energy Systems 101

    The human body uses the compound adenosine triphosphate (ATP) for cellular metabolism. Basically, anything a cell needs to do, it needs ATP for the energy to do it. The body produces ATP through three different pathways:

    1. Alactic Anerobic (ATP-CP) – This is the shortest (activity lasting 1-12 seconds), fastest acting, and most easily depleted.
    2. Lactic Anerobic – This is what most people refer to as “anaerobic” training. This lasts from from 60-90 seconds.
    3. Aerobic (oxidative) – This is the primary energy system we use the vast majority of the time. It is the dominant system, resting after 90 seconds of activity.

    Keep in mind that all three systems are actively producing energy constantly. The contribution each one makes varies greatly based on the duration of an activity – not the intensity.

    The Aerobic System

    Your aerobic system is how the body produces the most energy (ATP) per cycle. During aerobic metabolism one molecule of glucose yields 36 ATP, compared to only 2 during anaerobic metabolism. The only drawback to aerobic metabolism is a slower process than the other two. While it takes some time to churn out those ATP, you can use the aerobic system literally for hours without fatiguing excessively or “gassing out”.

    The PC-ATP and Lactic Anaerobic systems are depleted quickly. When this happens fatigue sets in. You can observe this in marathon runners who perform continuously for hours primarily using the aerobic system, while sprinters are completely fatigued at the end of a 10 second 100 meter sprint where the ATP-PC system is dominant.

    The aerobic system has some other important qualities to remember:

    • It plays a role in the resynthesis of creatine phospate, which is used during the first 6-10 seconds of activity.
    • It helps return you to a calm stat. Initiating the rest and digest system (parasympathetic tone) after intense efforts initiates the fight or flight system (sympathetic tone) .

    This last point is important because stressful, high intensity, or fatiguing training initiates the fight or flight system. The aerobic system helps to manage the response to the stress. While we want the fight or flight system to start up, we do not want a larger response than is needed. An overly larger sympathetic response will only cause the heart rate to skyrocket and remain elevated. This will initiate the Lactic Anerobic system, fatiguing the athlete sooner than necessary by keeping the athlete in a (sympathetic) state and not allowing them to recover properly. A good aerobic system will help properly manage the response to a stressor (exercise).

    Mitochondria: Where the ATP is Made

    Often referred to as the powerhouse of the cell. This is where aerobic metabolism takes place. The more aerobic training you do, the more mitochondria you build. The more anaerobic (lactic) training you do, the more mitochondria you destroy. If you remember nothing else, please remember: Building more mitochondria is the key to producing more energy (ATP).

    The Efficient Heart

    With all this talk about creating energy with or without oxygen, we can’t forget the muscle that is responsible for getting that oxygen to the muscles and ultimately the cells.

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    The heart is made of four chambers. Deoxygenated blood enter the right atrium, flows into the left ventricle, goes through the lungs to pick up oxygen molecules, re-enters in the left atrium, and is pumped out to the rest of the body with the left ventricle.

    When the hearts of athletes were compared, it was found that the left ventricles had substantive differences. While endurance training is known to create a larger and more elastic left ventricle, weight training or any high intensity anaerobic training of the sort is known to have the opposite effect. Anaerobic activities create a thickening of the left ventricle wall, which leads to a less elastic and smaller left ventricle. This means anaerobic athletes have a smaller ejection fraction, pumping much less blood per beat of the heart, compared to aerobic athletes.

    Anaerobic Threshold

    Everyone has reached that point where fatigue starts to rapidly accumulate. Your legs, lungs, and arms start to burn – and you’re really hating life. At this point, you’ve passed your anaerobic threshold: the point at which we can no longer clear the waste products (hydrogen ions) from ATP production. An acidic environment is created in the cells and fatigue starts to accumulate rapidly. Training in this area can be very valuable. There are enzymes, phoshofructokinase (PFK) and phosphorylase produced that will help you resist fatiguing when training here.

    It feel terrible while you’re doing it, but it’s also very physically and mentally draining. Thankfully, after 6-8 weeks you’ve maxed out your possible improvements. Keep in mind that while you’re doing this type of training you’re actively destroying mitochondria and limiting your overall ATP potential. The longer you train, the more you stress this system, and end up destroying even more mitochondria.

    Repeated Sprint Ability

    Most MetCon and Hero workouts are nothing more than a series of sprints with short rest periods. One of the most popular protocols is the Tabata. Essentially, you work very hard for 20 seconds and then rest for 10 seconds, repeating this process for 4 continuous minutes. While this is a misrepresentation of what the original Tabata study entailed, it’s what the Tabata has become.

    Framing this in the context of energy system training, it seems like it would be nothing more than 20 seconds of primarily Lactic Anaerobic training followed by a rest period. Because of this we should focus on training the Lactic (LA) system. However, the research on repeated sprint ability has shown us that this isn’t the case. Remember: all energy systems are interrelated and turned on constantly, only the contribution changes.

    energy-production

      The first graph is sprint #1, the second is sprint #3 from this study Parolin,1999

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      Basically, the graph demonstrates that by the third sprint the majority of the energy was provided early in the sprint by the Pcr (PC-ATP) system (the white area), then later by the aerobic system (oxidative phosphorylation). The Lactic Anerobic (glycolytic) system was overwhelmed early on because of the accumulation of by-products of its own making, thus forcing it to limit it’s ATP production and contribution by sprint #3. Once the subject got to sprint 3 it was up to the aerobic system to, not only, resythesize PC for the CP-ATP system to start activity, but also provide almost all of the energy after 6 seconds, when the CP-ATP system had run dry.

      The contribution of the Lactic Anaerobic system was almost nonexistent.

      What about Tabata?

      The holy grail of justification for MetCon or High Intensity Interval Training is usually the Tababta study.

      However, this study has been misrepresented. The part everyone forgets is that the Tabata study was carried out on very highly conditioned, national level, speed skaters. They had already built a HUGE aerobic base. Basically, the Tabata study shows what they could accomplish, achieving a VO2 Max of 170% across all 8 intervals.

      Most people don’t have the ability to come close to that, not even once.

      The study didn’t tell you what they did beforehand to be able to accomplish that. Those test subjects (as we saw in the graph above) must have a giant “engine” (or aerobic system) to begin with or they would not be able to recover from such high intensities in so little time. Without a strong aerobic system, there is no way they would have been able to maintain that level of power output for 8 intervals. They simply wouldn’t have regenerated the creatine phospate and ATP needed as they fatigued. Their power output would also fall well below 170% of vo2max.

      This is Why You’re “Gassing Out” During Fran

      Besides the fact that it’s really hard, you’ve only been training your lactic anaerobic system.

      For the first few efforts, before your heart rate elevates and exceeds your lactate threshold, you’re able to produce power. But once you pass your lactate threshold and accumulate fatigue, your aerobic system isn’t kicking in enough to help you recover and maintain your power output. You are literally sprint #3 from the graph. Before you get into anaerobic training (LA) your ceiling is very low. You’re entering into anaerobic metabolism early and never getting out of it.

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      The consequence is that you MUST slow down, lengthen rest periods, lower power output, or even stop all together.

      You’ve “gassed out”.

      What to Do:

      This doesn’t mean you need to start running 5 miles a day. You could, but nothing would turn me off of a training program faster.

      My personal favorite form of aerobic training is cardiac output training. This will help build both a larger left ventricle cavity in the heart, as well as mitochondria to produce ATP.

      I usually walk uphill on a treadmill with a weight vest. Some people use short sprint intervals where they stop at a heart rate of 140/ 150 and sprint again when it recovers to 120. Others use weight training circuits or kettlebell swings. The heart is a dumb muscle and only responds to the needs of the body. The type of exercise doesn’t matter. As long as it lasts for at least 30 minutes and the heart rate stays between 120-150bpm, you’re good to go.

      This heart rate covers most people, although it may be too high for some. The take-home is: staying below the lactate threshold keeps the heart rate low enough that you don’t enter into anaerobic metabolism. The left ventricle of the heart will fill with blood and stretch for a bigger ejection more so than speed up.

      The only rules you need to follow are:

      1. Heart rate of 120-150 beats per minute. (This is too high for some but covers the vast majority of people.)
      2. 30-90 continuous minutes..

      Is Metabolic Conditioning or High Intensity Interval training Just a Waste of Time?

      Not at all. It’s actually a great tool for fat loss. Those who are really strapped for time or who just love to really work hard, sweat, and be exhausted will love MetCons. It can also burn serious calories in a short period of time. These workouts DO improve the aerobic fitness of those who have an average or below average fitness level. So if you’ve been training for a while, that’s not you.

      If you’re already pretty fit but gas out early, then you need a bigger engine. This will only come through taking the time to build a more robust aerobic system.

      Featured photo credit: Runar Eilertsen via flickr.com

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      Last Updated on July 10, 2020

      How to Take Control of Your Life with Better Boundaries

      How to Take Control of Your Life with Better Boundaries

      We all have them—those hurtful, frustrating, offensive, manipulative people in our lives. No matter how hard we try to surround ourselves with positive and kind people, there will always be those who will disrespect, insult, berate, and misuse you if we allow them to.

      We may, for a variety of reasons, not be able to avoid them, but we can determine how we interact with them and how we allow them to interact with us.

      So, how to take control of your life and stop being pushed around?

      Learning to set clear firm boundaries with the people in our lives at work and in our personal lives is the best way to protect ourselves from the negative effects of this kind of behavior.

      What Boundaries Are (And What They’re Not)

      Boundaries are limits

      —they are not threats or ultimatums. Boundaries inform or teach. They are not a form of punishment.

      Boundaries are firm lines—determined by you—which cannot be crossed by those around you. They are guidelines for how you will allow others to treat you and what kind of behaviors you will expect.

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      Healthy personal boundaries help protect you from physical or emotional pain. You may also need to set firm boundaries at work to ensure you and your time are not disrespected. Don’t allow others to take advantage of your kindness and generosity.

      Clear boundaries communicate to others that you demand respect and consideration—that you are willing to stand up for yourself and that you will not be a doormat for anyone. They are a “no trespassing” sign that makes it very clear when a line has been crossed and that there will be consequences for doing so.

      Boundaries are not set with the intention of changing other people. They may change how people interact with you, but they are more about enforcing your needs than attempting to change the general behavior and attitude of others.

      How to Establish Boundaries and Take Control of Your Life

      Here are some ways that you can establish boundaries and take control of your life.

      1. Self-Awareness Comes First

      Before you can establish boundaries with others, you first need to understand what your needs are.

      You are entitled to respect. You have the right to protect yourself from inappropriate or offensive behavior. Setting boundaries is a way of honoring your needs.

      To set appropriate boundaries, you need to be clear about what healthy behaviors look like—what healthy relationships look like.

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      You first have to become more aware of your feelings and honest with yourself about your expectations and what you feel is appropriate behavior:

      • Where do you need to establish better boundaries?
      • When do you feel disrespected?
      • When do you feel violated, frustrated, or angered by the behavior of others?
      • In what situations do you feel you are being mistreated or taken advantage of?
      • When do you want to be alone?
      • How much space do you need?

      You need to honor your own needs and boundaries before you can expect others to honor them. This allows you to take control of your life.

      2. Clear Communication Is Essential

      Inform others clearly and directly what your expectations are. It is essential to have clear communication if you want others to respect your boundaries. Explain in an honest and respectful tone what you find offensive or unacceptable.

      Many people simply aren’t aware that they are behaving inappropriately. They may never have been taught proper manners or consideration for others.

      3. Be Specific but Don’t Blame

      Taking a blaming or punishing attitude automatically puts people on the defensive. People will not listen when they feel attacked. It’s part of human nature.

      That said, you do not need to overexplain or defend yourself. Boundaries are not open to compromise.

      Sample language:

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      • “You may not…yell or raise your voice to me…”
      • “I need…to be treated with respect…”
      • “It’s not okay when…you take things from my desk without asking…”
      • “I won’t…do your work…cover for you anymore…”
      • “It’s not acceptable when…you ridicule or insult me…”
      • “I am uncomfortable when…you use offensive language”
      • “I will no longer be able to…lend you money…”

      Being able to communicate these without sounding accusatory is essential if you want others to respect your boundaries so you can take control of your life.

      4. Consequences Are Often Necessary

      Determine what the appropriate consequences will be when boundaries are crossed. If it’s appropriate, be clear about those consequences upfront when communicating those boundaries to others.

      Follow through. People won’t respect your boundaries if you don’t enforce them.

      Standing our ground and forcing consequences doesn’t come easily to us. We want to be nice. We want people to like us, but we shouldn’t have to trade our self-respect to gain friends or to achieve success.

      We may be tempted to let minor disrespect slide to avoid conflict, but as the familiar saying goes, “if you give people an inch, they’ll take a mile.”

      It’s much easier to address offensive or inappropriate behavior now than to wait until that behavior has gotten completely out of hand.

      It’s also important to remember that positive reinforcement is even more powerful than negative consequences. When people do alter the way they treat you, acknowledge it. Let people know that you notice and appreciate their efforts.

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      Final Thoughts

      Respect is always a valid reason for setting a boundary. Don’t defend yourself or your needs. Boundaries are often necessary to protect your time, your space, and your feelings. And these are essential if you want to take control of your life.

      Start with the easiest boundaries first. Setting boundaries is a skill that needs to be practiced. Enlist support from others if necessary. Inform people immediately when they have crossed the line.

      Don’t wait. Communicate politely and directly. Be clear about the consequences and follow them through.

      The better you become at setting your own boundaries, the better you become at recognizing and respecting the boundaries of others.

      Remember that establishing boundaries is your right. You are entitled to respect. You can’t control how other people behave, but you do have control over the way you allow people to treat you.

      Learning to set boundaries is not always easy, but with time, it will become more comfortable. You may eventually find that boundaries become automatic and you no longer need to consciously set them.

      They will simply become a natural extension of your self-respect.

      Featured photo credit: Thomas Kelley via unsplash.com

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