How to pick your personal or group fitness trainer
As a trainer, I’m very critical towards other trainers and expect the same from them. Everyone can always continue to learn and should take steps towards continuing their education and skills, no matter how long they have been a trainer.
Now how do you choose a trainer? I’d like to share some things I find important to ensure that you select the right trainer who can help you reach your goals. First, you have to figure out what you’re looking for in a trainer:
- Is there a certain style, workout program you want to pursue or a specific piece of equipment you want to focus on and is the trainer competent in teaching it?
- Are you looking for someone to give you tough love or to hold your hand?
- How much time and money do you want to spend on a trainer and does his/her availability and price fit into your plan? Many people can afford a trainer on a regular basis if the trainer proves to offer a big return in experience, knowledge and results!
- Important: are you ready for this?
- …
Next, once you know what you’re looking for, it’s time to learn more about your trainer:
- Does he/she have certifications and if so, are they valid and significant? Personal trainer certification companies just pop up every other day. Many require some reading and an online open book test. This doesn’t make a trainer. Intense classes, exams, hands on training and a whole lot of time makes a good trainer (and even so, there are some incredibly smart trainers out there who still don’t get results because of other factors).
- Is he/she in shape? I know this is discriminating but would you hire a dermatologist with bad skin or a child psychologist with badly behaved kids? I doubt it. It’s the same with trainers. If they take their job seriously and love what they do, they’ll do it for themselves. I know of many trainers and coaches (both fitness and martial arts) who have all these goals and years later, haven’t accomplished any of them. Not a good sign.
- Does the trainer have people skills? He/she doesn’t need to be the most social person in the world but they need to be able to push you, motivate you and help you when you need it.
- Are they experienced in many different workout methods, equipment and programs? Variation is huge in fitness training, both for your physical results and to prevent mental fatigue. The trainer needs to be able to switch things up and keep it fun by adding variety.
- Is the trainer open minded and critical at the same time? Being open minded is an important thing in training (and everything else). New equipment or methods may come out and it’s great to take advantage of that. A good trainer will take great things from different sources and put them together for a superior training experience. At the same time, being critical is vital because there are a lot of useless things in the fitness world. It is a multi billion dollar industry so many people out there promise you everything but give nothing but false statements.
- Does the trainer do any kind of assessments? These are great to check on your progress but also keep you motivated.
- Does the trainer offer packages, multi clients sessions etc. These might save you some money!
- As with some chiropractors (from my experience), a trainer who pushes you to buy their supplements, is a huge red flag. It’s ok if they introduce you to it or if you ask about it. However, if they keep being forceful about it, find someone else!

Define Defense in Boulder, CO
- Mixed Martial Arts
- Brazilian Jiu Jitsu
- Self Defense Classes & Workshops
- Personal Training
- TRX / Cross Training Classes
- Kettle Bell
- Warrior Training
1805 11th Street Suite B
Boulder, CO 80302
Sander@DefineDefense.com
www.DefineDefense.com
Tough Mudder Team Training
Define Defense is again participating in the Tough Mudder in Beaver Creek, Colorado on June 16th, 2013! Tough Mudder CO is a 12 mile obstacle course to complete with a team (not a competition!). It’s a blast and gives you a great goal to work towards while having fun with your team mates. And let’s not forget, it gives you bragging rights for a long time!

We will be training all our participants and have a great offer for our team mates. If you join our Define Defense Team for Tough Mudder, you can get a 3 month unlimited fitness membership at our facility for only $200 or a 6 month membership for only $345.*
This membership applies to all our TRX, Cross Training, Warrior Training and Kettle Bell classes. On top of these, we will also do additional specific workouts to prepare ourselves for Tough Mudder.
That’s a stunning 50% off normal membership fees!
However, in order to get this amazing deal at our cutting edge studio, you have to commit to joining our Tough Mudder Team first. There is absolutely no monetary gain from your registration for Define Defense. However, we do this because it’s a lot of fun!
Everyone is welcome! We just ask you to come motivated and bring your team spirit!
REGISTER HERE AND JOIN OUR TEAM!
When you register, you have to click ‘Join an Existing Team’, the next page will require you to type in our team name:
Define Defense Martial Arts & Fitness
When you are all set, please email us at Info@DefineDefense.com to confirm your registration and we will get you set up with your unlimited membership for our TRX, Cross Training and Kettle Bell classes!
Do you have any questions? Just shoot them over!
*For new members only*
Recovery as Indicator
One thing I realized when growing older (and throughout college education, training etc.) is that I needed to pay more attention to my recovery heart rate. After doing a set, an interval, a workout, see how long it takes for your heart rate to drop to (or close to) normal levels. If it continues to race for minutes, you might need to switch up your training routines or in extreme cases, go see a doctor.
If you heart rate drops pretty quickly, then you know your body is able to recover quicker and it is also acting more efficiently compared to someone’s heart rate who stays higher for a much longer time period. It is a great indicator of your current physical condition. If you recover faster, it enables you to do more repetition, keep your intensity high and outwork an opponent. If your body fails to recover, you will be forced to stop or slow down.
The easiest way to check is to count your heart rate during 15 seconds and multiply this number by 4, right after you finished working out or doing your last exercise and again after 1 or 2 minutes. If you continue to do this over a certain time period, you will see if there are any changes. Remember, every individual has a different level, different maximum heart rates, heart rate zones and recovery time. Compare to your own data over time, not others!
Now how do you improve your recovery time? Easy: by training! If are new to training, you will notice a significant difference quickly. If you have been training for a while and don’t notice any difference anymore, you can switch up your training and focus on different ways of working out. You can focus more on endurance (which plays a huge factor in improving recovery times), intervals, tempo training etc. Do things you are not used of doing to keep your body guessing. That is why cross training is so great! It shocks your body and makes it stronger in every single way. This new and improved body will be able to make more progress in the sport you want get better at.
Next time you are working out, don’t only focus on the workout itself, also measure up your heart rate after some sets and after your workout and take notes. These notes will be helpful down the road! It’s not all about training, but also about recovery, rest, nutrition etc.
By Sander Vanacker, owner, head instructor and personal trainer of Define Defense Martial Arts & Personal Training.
Define Defense in Boulder, CO
- Mixed Martial Arts
- Brazilian Jiu Jitsu
- Self Defense Classes & Workshops
- Personal Training
- Cross Training / TRX Classes
1805 11th Street Suite B
Boulder, CO 80302
(720) 340 6254
Info@DefineDefense.com
Bolder Boulder & Tough Mudder
The last few weeks, I have been preparing for the consecutive races I had planned.

Either way, I had a great time and hope to be able to do it many more times. Maybe I should aim to finish under 50 minutes? I have done a 10k before around 45 minutes but that was many years ago and when my body was more designed for endurance sports. That should be a very realistic goal as I didn’t train specifically on running but also on biking, swimming, strength and cross training. Nonetheless, running is a great workout and boosts your cardio. A quality that is important for many athletes. I like to maintain a healthy balance of strength, cardio, speed, flexibility etc. That also means I can’t be a purely competitive endurance athlete but that is also not my goal at this point in time.
I was supposed to do the Sunrise triathlon this coming weekend and Tough Mudder next weekend. However, I will be forced to pass on the triathlon for following reasons:
- I have a wound on my arm that I don’t want to swim with in the Boulder reservoir. It is probably fine but I don’t want to risk any bad infections. I am sure you have heard of the horrible stories that have occurred lately with bad bacteria in lakes (not the reservoir but nonetheless, I’d rather be safe than sorry).
- By having a booth at the Boulder Creek Fest and a big yard project, I haven’t had a chance to recover in weeks. Therefore, I will pass on the triathlon so I can attend the Tough Mudder race. I don’t want to risk pushing my body too much and having to pass on Tough Mudder. We are doing it with a team and I want to participate. Too bad because my training was going fantastic but I don’t want to overtrain.
Unfortunately, the Sunrise Boulder organization was not very helpful in refunding my registration fees because of the wound that may get infected. Apparently they claim they never refund any fees under any circumstances, including medical conditions that may be dangerous to the athletes, whether it’s by own doing or infecting each other. As a business owner myself, I understand you need to reinforce rules but at the same time, also make exceptions. What if someone can infect other athletes, what if I get a heart attack a few days before? They would not refund an athlete? That doesn’t make any sense to me so I believe they should revise their policies as this is not fair or morally correct. I know for sure I won’t be registering with this organization anymore. When someone is unable to train with us because of a valid reason, we modify their membership to accommodate. Simply because it’s the right thing to do.
This week is all about recovery for myself with some cross training sessions to keep my body sharp for Tough Mudder. My cardio is great and I don’t expect an issue with Tough Mudder. And if my body were to let me down for some reason… I tend to be very determined (or stubborn?) in training & races. A quality that people around me don’t always appreciate that much :)
Also check out some pictures that our neighbor Julie Kate Photography took during the Bolder Boulder!
Tough Mudder Medicine Ball Workout
Define Defense in Boulder, CO
- Modern Martial Arts
- Brazilian Jiu Jitsu & MMA
- Self Defense Classes & Workshops
- Personal Training
- Cross Training / TRX Classes
1805 11th Street Suite B
Boulder, CO 80302
Training the energy systems
Lactic acid tolerance training
This will improve your tolerance but also your body’s ability to buffer it and increase lactate removal from the muscle.
Intervals of less than 1 minute will require 4-8 repetitions with long recovery periods in between (15-30 minutes)
Longer intervals of 2-3 minutes are desirable but only if you can hold the intensity.
This is a very hard workout so don’t overdo it.
Maximum oxygen consumption training
Intervals of 3-5 minutes, max intensity. Heart rate up to 10 beats under your max.
Improve efficiency of the oxygen transport system.
Anaerobic Threshold Training
Tempo training with speed slightly above comfortable. Intensity should be 60-90% of max and you have to hold it throughout your training. Lactate levels will be above 4 millimol and will build up.
Phosphate system training
Short bursts of maximum intensity up to 10 seconds. Long recovery necessary to prevent lactate production.
Aerobic Threshold Training (Long Slow Distance Training)
More than 1 hour
No lactate production
Comfortable intensity (have to be able to talk)
Will improve endurance and recovery time
By Sander Vanacker, Define Defense’s certified personal trainer and head martial arts instructor, based in Boulder, Colorado. Take a look at www.DefineDefense.com, www.TrainerVanacker.com or check out our videos on YouTube.com/DefineDefense !
Define Defense in Boulder, CO
- Modern Martial Arts
- Brazilian Jiu Jitsu & MMA
- Self Defense Classes & Workshops
- Personal Training
- Cross Training / TRX Classes
1805 11th Street Suite B
Boulder, CO 80302
Energy Systems
Energy required for muscle contraction is released by by the conversion of ATP into ADP+P
Therefore, ATP sources need to constantly replenished by different energy systems:
Phosphagen System
Readily available in the body and can be used instantaneously for efforts up to 8-10 seconds. Very important for weight lifters, sprinters etc. No lactic acid production and no oxygen necessary.
After the effort, in the first 30 seconds, 70% of the creatinephosphate is replenished and in 3 to 5 minutes, a 100% is replenished.
Lactic Acid System
The lactic acid system provides energy for resynthesizing ATP for events up to 40 seconds (first 10 will be Phosphagen system). It breaks down glycogen stored in the muscle cells and liver and produces lactic acid (no oxygen used which creates an oxygen debt).
Restoring glycogen takes 2 hours for 40% and 24 hours for full restoration after a workout with breaks throughout. For a continuous, high intensity workout, it can take 48 hours.
95% of the lactic acid is removed after 1 hour and 15 minutes so the muscle pains you may feel for the next few days are not lactic acid but micro damage in your muscle.
Aerobic System
Fully activated after 60-80 seconds (warmup is important) to produce energy for resynthesizing ATP from AD+P. Energy sources are fats and glycogen (and protein occasionally).
Primary energy system for endurance athletes.
No lactic acid production or buildup.
However, in most cases, the aerobic system and lactic acid system work at the same time! The ratio depends on the intensity of your efforts.
The best indicator of which energy system you are actually using when exercising is measuring the level of lactic acid in the blood. The threshold (point where both energy systems are working but no build up of lactic acid) is 4 millimoles. Over that and you will get a buildup because your body is producing more than it can take away.
You can raise the threshold by training. An athlete with a good aerobic base (endurance) can work with higher intensity before crossing the threshold.
By Sander Vanacker, Define Defense’s certified personal trainer and head martial arts instructor, based in Boulder, Colorado. Take a look at www.DefineDefense.com, www.TrainerVanacker.com or check out our videos on YouTube.com/DefineDefense !
Define Defense in Boulder, CO
- Modern Martial Arts
- Brazilian Jiu Jitsu & MMA
- Self Defense Classes & Workshops
- Personal Training
- Cross Training / TRX Classes
1805 11th Street Suite B
Boulder, CO 80302
Supercompensation
Everything we do in our training and our training planning is affected by supercompensation. It refers to the biological state your body is after working out and rest. When you work out, your body is fatigued in many different ways and this reduces the functional capacities of your body. After resting, your body will recover and replenish and if the training stimuli were big enough, you will achieve a higher homeostatic level. This means your body will be stronger, you will have more endurance, more glycogen stored etc.
If you do not allow your body to rest before working out again, you will land in a negative spiral and exhaust your body more. This will lead to decreased performance and overtraining.
If you rest too much, you will lose the supercompensation results and you will be right back at where you started. The right (smart) training and the right amount of rest is key!
By Sander Vanacker, Define Defense’s certified personal trainer and head martial arts instructor, based in Boulder, Colorado. Take a look at www.DefineDefense.com, www.TrainerVanacker.com or check out our videos on YouTube.com/DefineDefense !
Define Defense in Boulder, CO
- Modern Martial Arts
- Brazilian Jiu Jitsu & MMA
- Self Defense Classes & Workshops
- Personal Training
- Cross Training / TRX Classes
1805 11th Street Suite B
Boulder, CO 80302