Let me be straight upfront. If I only had to choose ONE piece of equipment to train with the rest of my life, it would be a Kettlebell. And that’s coming from a skeptic.

In a relatively short period of time (I’ve been working out for over 15 years and have been using Bells for the last year or so) I completely fell head over heels for Kettlebells in all shapes and sizes.

okay that might be a lie * 


So what are Kettlebells and why are they so special?

Let me break it down for you.

Kettlebells are canon-ball-shaped weights with a handle on them. They should remind you of a tea-kettle.
Their shape allows you to perform movements that can’t be replicated with dumbbells or barbells, giving you an all-round fitness experience which no tool can do better.

One of the key benefits is that it makes the entire body work together in most exercises, which makes it possible to train strength ánd cardio at the same time. How convenient is that?

forget about those hours on the crosstrainer 

Because most movements put the entire body to work, the workout is very time-effective. A short 30-45 workout will give you all the effects that a 90 minute machine based gym session would do, and most probably more.

Kettlebell workouts increase athletic performance, melt fat and dramatically increase the cardiovascular health.

oh, and did I mention it gives you abs and glutes of steel?

…There’s a downside to all of this. HARD WORK.

The movements are not easy since multiple joints and muscles are being put to work. So getting someone experienced and certified to teach you would be strongly recommended. (like me)


“Kettlebell training is not for sissies but it is not elitist. Dr. Krayevskiy, father of Kettlebells, took up training at the age of forty-one and twenty years later he was said to look fresher and healthier than at forty”

-The Strongfit Certification Handbook


If this is you, contact me and we’ll make it happen.

The price of admission is a strong spirit and attention to detail.


* Because of their movement types, Kettlebells should start at around 16-20kg for men and 12-16kg for women. 

for lower weights, you may as well grab a dumbbell.


Week 2 Progress:

Weight : 82 KG

Fat % : 14% (-2 %)


  • Missed 0 Workouts ( Weights 3x, Bjj 2x, Boxing 1x)
  • Increased Weight on all lifts
  • Getting 7+ hours sleep daily
  • No drinking

Needs work:

  • Not eating enough, need more meals
  • Practice patience
  • Fat% still a bit high


Everything moves too slow. Which I guess, is a good thing because if my clients are anything like me, they will struggle with this as well. It really helps to keep track of objective progress ( see stat page of 5×5 app ) and imagining what that progress will look like on the broader scale of things.


Progress on Big Lifts



During my session with Cheryl, she mentions right at the beginning that she might not be able to workout well.
She’s tired, her sleep quality hasn’t been good and she pulled a muscle in her during gardening work.
I make a note of it, smile at her and say “let’s just see what we can do”. During the workout session, she’s breaking records all over the place.
First, she did full sets with what her 1 rm was 4 weeks ago.
Then she completed double the work of an exercise she struggled with last week.
Last but not least, suddenly she realized that her back wasn’t hurting.

“Actually, I feel a lot better than when I came in”.

I don’t know if this will be the case at the start of the session, but clinical experience shows us that in most cases, it does.
It’s important because this realization creates a positive feedback loop which is the following:

  • I don’t feel good, might not perform well
  • Perform well, or better than expectation
  • Feel good about performance
  • Positive reference for next time when not feeling good
  • Better decision making

As opposed to a negative feedback loop like this:

  • I don’t feel good, might not perform well
  • Decide not to workout
  • Feel bad about not meeting expectations/ Lose progress
  • Lose motivation

Feedback loops


Mine, and Cheryl’s takeaway from this:

Especially when in the first 12 weeks of training, it’s important not to give in to expected outcomes that only give you short-term instant gratification. Make decisions based on planning, not on the emotion of the day.
Of course, if you find out that you’re actually hurting or not feeling good during the workout, you can still decide to rest. But at least at that moment you’ve made a decision based on actual feedback of your body and not a projected outcome of the brain.

I’ve been applying this mindset experiment over the last year -not just for fitness purposes- and it has given me great results. Hope it can do the same for you.




A good diet starts with shopping. Don’t buy crap, don’t eat crap. It’s really that easy. Here’s a list with all the good stuff that needs to be in your basket.

Good Protein Sources:


Liquid Egg Whites: More convenient but more expensive
Skinless Chicken Breast: high quality lean protein
Lean Ground Turkey: Lean high quality protein
(Wild) Salmon Healthy fatty fish: costly but quality protein + tons of healthy fatty acids
Canned Tuna: Lean, easy and inexpensive. Get the water based one, not oil.
Lean Ground Beef
Cottage Cheese: Source of Casein protein. Slow digesting so will provide the body with protein for a long time.
Pork Tenderloin: fairly inexpensive medium lean protein.
Protein powder: Convenient, usually tasty and pure (if you get a good brand) also helps sweet cravings
Protein snacks: protein bars / nuts / seeds

Good Sources Of Carbohydrates


Oatmeal— cooked or overnight. Slow digesting, tons of fiber and nutrients. Learn to love it!
Fruit— Favorites for me are Blueberries (lots of nutrients / antioxidants ), bananas and apples. Best eaten around the workout because they’re mostly quick digesting carbs.
Vegetables— The more the better really. Tons of fiber and nutrients.
Sweet Potatoes
Brown Rice
White Rice: Fast-carb. Best eaten around the workout
Whole Wheat Bread

Good Sources Of Fats


Olive Oil
Flax seed oil
Fish Oil—Staple source of omega 3/6/9
Almond Butter
Cashew Butter
Peanut Butter (watch the sugar content)

B6 (Pyridoxine)

After conversion to the co-enzyme pyridoxal phosphate (plp) it plays an important role in the structure, degradation and conversion of amino acids.
It also helps in the regulation of the hunger /saturation mechanism and the regulation of sleep rhythm.

More and more studies indicate that B6 also improves cognitive function and improves the immune system.

The RDI is set to 1.5 mg for both men and women. It is in a large amount of products but often not in high concentration.

B6 is found in:

– meat
– Eggs
– whole-wheat products
– potatoes
– various vegetables
– fruits (banana, watermelon)
– dairy products


Fun Fact : A banana delivers half the ADH for B6


B6 is not well resistant to heating. This causes a large part of the vitamin to be lost.

Biological availability:

This is generally a lot better from animal products than from plant sources.

B6 deficiency:

Can lead to confusion, depression and anemia.


B6 surpluses are possible by using supplements. This can lead to tingling in the arms and legs, depression, muscle weakness and fatigue.

Okay, we can not put labels on people.

After all, we are all different and move differently. But the truth is that people mainly move in 3 directions, which are the following:

rug pijn hulp stap 1, bepaal welk type je bent

I will not make it too technical but the planes mean the following:

Sagittal (Blue): Move forward / backward, bend forward to pick up something
Frontal (Red): Sideways movements, such as when we raise our hands to wave to someone
Transverse (Green): Rotatory movements, such as when we reach to open a door.

The vast majority of our movements take place in the so-called Sagittal plane. Or often, actually to be more precise …

… the vast majority of our non-movements.

Een slechte houding plaatst 40% meer druk op de wervelkolom


Fact: A bad posture places 40% more pressure on the spinal column

When we move much in the same directions, the body adjusts to it. In practice, we see that this often results in 2 different archetypes: extension type and flexion type.

As you can see in the picture, there are a number of things that belong to these types.

Not everybody has all the features, but they often influence each-other . As a result, they are often seen together. The more features you have, the more you belong to this pattern.

Extension Type

The features or this type are:

-An enlarged arch in the lower back
-“Flaring out” the rib cage
-The pelvis tilts forward (“Water spills out on the front”)
-The knees are fully extended

Possible Issues:

Extension types often come with compression problems, or complaints related to pressure when joint surfaces are close to each other. -and thereby imposing excessive pressure on the connective tissue.

Flexion Type

The Flexion type has the following characteristics:

-The shoulders often “roll” forward
-The head is on the front and the neck is extended
-Upper back is rounded
-Lower back is flattened, or even rounded
– There is “no ass!”
– Knees are bent

Possible Issues:

The Flexion types are often the people with an office job. Working behind a desk easily pulls your body to this archetype . Mostly if you are not aware of your posture while sitting. This habit is then taken to the car and home where the “working posture” is continued to the “couch posture”.

This often passive posture can adversely affect the connective issue that hold the vertebra together. The inter-vertebral discs may also suffer greatly. Because there is little active support of the muscles, almost all of the strength ends up directly to the so-called “passive structures” such as the joints, ligaments and cartilage.

Herniated discs and instability problems are often seen complaints in this pattern.


Which back type do you have?

Which pattern is most like you? Once you know this, you can start balancing your posture through targeted exercises.

Under this article, please let me know what kind of type you are and what complaints you may experience!

I’ll be able to help you out from there on.




5 Tbs of Coconut Oil / MCT Oil
5 Tbs of Grass-fed Butter
2/3 Cup Gelatin powder
4-5 Cups of coffee (quality beans)
2 Tbs  raw honey/stevia (adjust to taste)
Vanilla extract to taste

-Blend for 30 seconds
-Put in oven tray and refrigerate for 3 hours



Ready to snack !!

Source: Livestrong

Mark Chen

– with Yon Socheata (Max Cross)


តើ RMR (Resting Metabolic Rate)​ ​​របស់អ្នកមានលក្ខណៈដូចម្តេច?


ជាក់ស្តែងបើទោះបីជាអ្នកមិនធ្វើសកម្ម​ភាពអ្វីក៏ដោយ​​​​​ក៏រាងកាយរបស់អ្នកនៅតែប្រើប្រាស់នៅថាមពលជានិច្ច។​ ជាធម្មតាយើងហៅថាមពលនោះថាជាកាឡូរី​​​ ថាមពលនេះទៀតសោតគឺ​ មិនមែនជាអ្វីមូយដែលមានពីខ្លួនប្រាណយើងទាំងអស់គ្នាហើយអោយយើងមានរូបរាងតូចស្អាតជាងមុននោះទេ។​ថាមពលនេះមានសារះសំខាន់ណាស់ក្នុងការជួយរាងកាយមនុស្សយើងធ្វើបំលាស់ប្តូចលនាព្យាបាលកោសិការ បណ្តុះកោសិការ​​និងធ្វើអោយការគិតបានប្រសើរ។​​​ទាំងអស់នេះហើយសុទ្ធត្រូវការប្រើប្រាស់ថាមពលជាសំខាន់។

ហេតុផលដែលធ្វើអោយមនុស្សចំនួនភ័យខ្លាចកាឡូរី​ ធ្វើការបែងចែកនៅកំរិតកាឡូរី
រឺមួយជ្រើសរើសនៅទឹកទទួលទានរាល់ថ្ងៃ​ (ដូចជាកូកាកូឡាមានជាតិស្ករតិច) ដែលមានកាឡូរីតិចតួចក៏ដោយសារតែពួកគាត់គិតថាកាឡូរីអាចធ្វើអោយឡើងទំងន់។​បើតាមការពិតជាក់ស្តែង​ វាពិតជាដូច្នេះមែន។

តែករណីនៃការឡើងទំងន់នេះអាចទៅរួច បើសិនជាយើងទទួលទានកាឡូរីហួសកំរិត។ ការស្រាវជ្រាវនៃការឡើងចុះទំងន់ទូទៅគឺមានលក្ខណសាមញ្ញទេ នោះមានន័យថារាងកាយរបស់​
យើងគឺស្រូបយកថាមពលចូល ច្រើនជាងថាមពលដែលប្រើប្រាស់ទៅវិញ ដូច្នេះមានន័យថាថាម
ពលមួយចំនួនដែលនៅសល់គឺ ត្រូវបានរាងកាយរក្សាទុកសំរាប់ប្រើប្រាស់នៅថ្ងៃបន្តបន្ទាប់។ នេះគឺជាភាពវៃឆ្លាតនៃការដំណើរការរបស់រាងកាយមនុស្សយើង។​ តែអ្វីដែលជាផលប៉ះពាល់របស់ដំណើរការនេះ គឺរាងកាយនឹងរក្សាទុកនៅជាតិខ្លាញ់មួយចំនួន ដែលមនុស្សទូទៅមិនត្រូវការ។ ហើយករណីនេះកាន់តែមានផលប៉ះពាល់ខ្លាំង បើសិនជាចំនួនជាតិខ្លាញ់​នេះកើនហួសពីកំរិតណាមួយ។

ដូច្នេះចំនុចសំខាន់ក្នុងការបង្ការការឡើងជាតិខ្លាញ់ និងធ្វើអោយបាននៅការទទួលទានរបបអាហារអោយបានត្រឹមត្រូវគឺ ធ្វើការគណនានៅចំនួនថាមពលដែលអ្នករូបរាងកាយអ្នកត្រូវការក្នុងមួយថ្ងៃ។ វាចាប់ផ្តើមឡើងពីរូបមន្តដ៏ល្អប្រសើរមួយក្នុងការគណនា RMR (Resting Metabolic Rate) (កំរិតនៃការប្រើប្រាស់ថាមពលប្រចាំថ្ងៃ)។ ហើយលទ្ទផលដែលគណនាបានអាចបង្ហាញអោយយើងឃើញពី កំរិតថាមពលដែលរាងកាយត្រូវការក្នុង​មួយថ្ងៃក្នុងការរក្សាអោយបាននូវដំណើរការទូទៅនៃសរីរាង្គខាងក្នុង រក្សាអោយបានភាពសកម្មនៃខួរក្បាល និងកំរិតសីតុណ្ហភាពក្នុងខ្លួនអោយមានលំនឹង។

ការប្រើប្រាស់នៅរូបមន្តនេះ បង្ហាញអោយអ្នកឃើញពីចំនួនថាមពល (កាឡូរី) ដែលរាងកាយត្រូវការក្នុងការបំពេញមុខងារចាំបាច់រៀងរាល់ថ្ងៃដែលបានរៀបរាប់ខាងលើ។ អ្វីដែលអ្នកត្រូវចងចាំពីការបកស្រាយនេះ គឺត្រូវទទួលទានអោយបានគ្រប់គ្រាន់តាមអ្វីដែលរាងកាយត្រូវការចាំបាច់ក្នុងការលូតលាស់ទៅតាមលទ្ធផលដែលបានគណនា។ សូមជឿជាក់លើខ្ងុំចុះថា អតិថិជនរបស់ខ្ងុំពីមុនមកគឺមានការយល់ឃើញខុសចំពោះរឿងនេះ ដែលពួកគាត់មិនបានទទួលទានអោយគ្រប់គ្រាន់តាមអី្វដែលរាងកាយត្រូវការ។ ថ្វីបើពួកគាត់ទទួលបានលទ្ទផលនៃការសំរកទំងន់ជោគជ័យនៅដំណាក់កាលដំបូង តែនេះមិនមែនជាវិធីសាស្រ្តល្អក្នុងរយះពេលវែងទៅមុខទេ។​

​​88.362 + (13.397 *ភេទ) + (4.779 * កំពស់) – (5.677 *ទំងន់)

មើលទៅដូចជាមិនទំនងទេ មែនអត់!

តែអ្វីដែលល្អសំរាប់អ្នក គឺរាល់ការគណនាទាំងអស់នេះត្រូវបានធ្វើឡើងដោយអ្នកជំនាញសំរាប់អ្នកមានស្រាប់។ ដូច្នេះហើយបានជាខ្ងុំសូមធ្វើការណែនាំ នៅវិធីសាស្រ្តរបៀបថ្មីនេះដែលមានភាពងាយស្រួល និងរហ័សក្នុងការគណនានៅលទ្ធផលនេះអ្នកទាំងអស់គ្នា។

វិធីគណនានេះមានភាពងាយស្រួល គឺគ្រាន់តែធ្វើការដាក់បញ្ចូលនៅ នៅពត៏មានពីរាងកាយរបស់​អ្នក បន្ទាប់មក កម្មវិធីនេះនឹងធ្វើការគណនានៅលទ្ធផលជូនអ្នកភា្លម។

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Vitamin B2 (riboflavin) What, why and how much?

This vitamin is important for energy metabolism and optimal functioning of the central nervous system.

RDA is 1.1mg for men and 1.5mg for men.

Products with a good source of B2 include:

– milk and other dairy products
– Meat
– organ meats such as liver
– whole grain
– Green vegetables, broccoli, spinach, asparagus
– Eggs
– some fruits like bananas
– mushrooms
– crustaceans



source: Healthbeckon

Vitamin B2 is fragile and disappears from food when it is exposed to UV light. Long-term exposure can be 50-80% of the vitamin loss!! Hence milk is often found in a carton and not in a plastic bottle!

B2 deficiency can cause digestive problems and skin. Also, inflammation of the eyelids and mouth occur.
Symptoms of an excess if B2 are not well documented.


Mark Chen