Ballard · Seattle

Strength and movement training that lasts a lifetime

Rebuild your strength, relieve your pain, and gain health you can keep. Small group classes and personal training — beginner friendly, no experience required.

Book a free trial See the classes

5.0 · 13 Google reviews

Coach Nico Aliaga celebrating with two students of different generations after a class

Our method

Grow like a tree: roots, trunk, branches

Every student follows the same arc — first move without pain, then build a stable core, then branch into real athletic performance.

Roots

Breath, posture, and pain-free movement

Monday – Friday · 7:00–8:00 am

About Roots

Trunk

Core stability, balance, and isometrics

Monday – Friday · 12:30 pm

About Trunk

Branches

Power, reaction, and athletic conditioning

Tuesday, Thursday, Friday · 5:30–6:30 pm

About Branches

What we offer

Two ways to train

A student holding a wall sit with a medicine ball during a group class

Group classes

Foundational classes every weekday morning and noon — posture, tool-assisted stretching, core stability, and balance. Evening athletic development on Tuesday, Thursday, and Friday: strength, conditioning, and muscular endurance.

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Coach guiding a student through a medicine ball exercise in a private lesson

Personal training

One-hour private lessons for individuals and small groups up to five, available by appointment and built around your goals. Tell me who's training, their experience, and what they'd like to learn.

Contact me

Meet your teacher

Nico Aliaga

Nico is a professional fighter, Muay Thai coach, certified personal trainer, and former classroom teacher. He's been teaching, training, and fighting out of Muay Thai Iyarin since 2024.

He founded Tree of Life Training & Wellness to share the fundamentals of movement training that reverse the imbalances of a sedentary life. He spends his spare time gardening, asleep next to his cat, or building community.

Professional Muay Thai fighter
ISSA-certified personal trainer
Former classroom teacher

Our reviews

What students say

5.0 from 13 Google reviews

“Nico did indeed take it seriously, and the results have been spectacular. Suffice to say that my formerly somewhat mousey grandkid is now a Muay Thai addict, and will be back for more…”
Scott M
“Every class is well-structured. From warm-ups all the way through the learning outcome of the day, it all flows together intentionally. My technique, fight IQ, and fitness levels have noticeably improved. If you're looking for a coach who actually has a program and a purpose behind every class, Nico is your guy!”
Germaine Gonzalez
“Coach Nico understands deeply biomechanics and how our body should move! He is more than a superficial trainer! Hugely recommended if you have any imbalances — passionate, experienced, and knowledgeable.”
Tudor Sasaran
“Started training with Coach Nico because I needed to add S+C to my routine. And wow, what a difference it's made in a short amount of time. The classes are small and tailored to your individual goals. Nico is very knowledgeable and will make your experience equally challenging and rewarding.”
Renata Geraldo
“Coach Nico is highly skilled and well versed in many aspects of training. He is patient and will meet you with your training slightly past where you feel comfortable — highly recommended.”
Emiel Madonna
“I started working with Nico in June of '24, to improve my mobility, coordination, and overall fitness, and I've found him to be an amazing coach and instructor. I've progressed a ton since starting with him and I can't recommend him highly enough!”
Noah Choi
“I highly recommend training with Nico. He's an experienced, versatile fighter that will make you tougher, improve your conditioning, develop your mental game, and deepen your understanding of Muay Thai.”
Kendal Harland

“Nico did indeed take it seriously, and the results have been spectacular. Suffice to say that my formerly somewhat mousey grandkid is now a Muay Thai addict, and will be back for more…”
Scott M
“Every class is well-structured. From warm-ups all the way through the learning outcome of the day, it all flows together intentionally. My technique, fight IQ, and fitness levels have noticeably improved. If you're looking for a coach who actually has a program and a purpose behind every class, Nico is your guy!”
Germaine Gonzalez
“Coach Nico understands deeply biomechanics and how our body should move! He is more than a superficial trainer! Hugely recommended if you have any imbalances — passionate, experienced, and knowledgeable.”
Tudor Sasaran
“Started training with Coach Nico because I needed to add S+C to my routine. And wow, what a difference it's made in a short amount of time. The classes are small and tailored to your individual goals. Nico is very knowledgeable and will make your experience equally challenging and rewarding.”
Renata Geraldo
“Coach Nico is highly skilled and well versed in many aspects of training. He is patient and will meet you with your training slightly past where you feel comfortable — highly recommended.”
Emiel Madonna
“I started working with Nico in June of '24, to improve my mobility, coordination, and overall fitness, and I've found him to be an amazing coach and instructor. I've progressed a ton since starting with him and I can't recommend him highly enough!”
Noah Choi
“I highly recommend training with Nico. He's an experienced, versatile fighter that will make you tougher, improve your conditioning, develop your mental game, and deepen your understanding of Muay Thai.”
Kendal Harland

“Nico did indeed take it seriously, and the results have been spectacular. Suffice to say that my formerly somewhat mousey grandkid is now a Muay Thai addict, and will be back for more…”
Scott M
“Every class is well-structured. From warm-ups all the way through the learning outcome of the day, it all flows together intentionally. My technique, fight IQ, and fitness levels have noticeably improved. If you're looking for a coach who actually has a program and a purpose behind every class, Nico is your guy!”
Germaine Gonzalez
“Coach Nico understands deeply biomechanics and how our body should move! He is more than a superficial trainer! Hugely recommended if you have any imbalances — passionate, experienced, and knowledgeable.”
Tudor Sasaran
“Started training with Coach Nico because I needed to add S+C to my routine. And wow, what a difference it's made in a short amount of time. The classes are small and tailored to your individual goals. Nico is very knowledgeable and will make your experience equally challenging and rewarding.”
Renata Geraldo
“Coach Nico is highly skilled and well versed in many aspects of training. He is patient and will meet you with your training slightly past where you feel comfortable — highly recommended.”
Emiel Madonna
“I started working with Nico in June of '24, to improve my mobility, coordination, and overall fitness, and I've found him to be an amazing coach and instructor. I've progressed a ton since starting with him and I can't recommend him highly enough!”
Noah Choi
“I highly recommend training with Nico. He's an experienced, versatile fighter that will make you tougher, improve your conditioning, develop your mental game, and deepen your understanding of Muay Thai.”
Kendal Harland

“I've had the pleasure of training with and learning from Nico and have also watched him teach students of all levels. Whatever your goals are, Nico has the knowledge and abilities to help you get there.”
Justin Li
“Excellent training! Pushes past your limits yet mindful of your capabilities!”
Marjoe Jr Delacruz
“Coach Nico's approach to muscle training is practical and well focused on real daily function, and a perfect complement to Muay Thai conditioning. The sessions are personalized, motivating, and deliver real results. Highly recommend for anyone!”
Bhon Bunnag
“Nico designs each session to match participants' specific goals, whether they are beginners building confidence or seasoned athletes refining performance. Genuine care for each person who trains with him. Come take a class and see for yourself!”
Katherine
“Great coach and focus on what you need to work on.”
Tony Deva
“As a fighter for the gym Nico's S&C classes have already helped me immensely.”
Khalil Tate

“I've had the pleasure of training with and learning from Nico and have also watched him teach students of all levels. Whatever your goals are, Nico has the knowledge and abilities to help you get there.”
Justin Li
“Excellent training! Pushes past your limits yet mindful of your capabilities!”
Marjoe Jr Delacruz
“Coach Nico's approach to muscle training is practical and well focused on real daily function, and a perfect complement to Muay Thai conditioning. The sessions are personalized, motivating, and deliver real results. Highly recommend for anyone!”
Bhon Bunnag
“Nico designs each session to match participants' specific goals, whether they are beginners building confidence or seasoned athletes refining performance. Genuine care for each person who trains with him. Come take a class and see for yourself!”
Katherine
“Great coach and focus on what you need to work on.”
Tony Deva
“As a fighter for the gym Nico's S&C classes have already helped me immensely.”
Khalil Tate

“I've had the pleasure of training with and learning from Nico and have also watched him teach students of all levels. Whatever your goals are, Nico has the knowledge and abilities to help you get there.”
Justin Li
“Excellent training! Pushes past your limits yet mindful of your capabilities!”
Marjoe Jr Delacruz
“Coach Nico's approach to muscle training is practical and well focused on real daily function, and a perfect complement to Muay Thai conditioning. The sessions are personalized, motivating, and deliver real results. Highly recommend for anyone!”
Bhon Bunnag
“Nico designs each session to match participants' specific goals, whether they are beginners building confidence or seasoned athletes refining performance. Genuine care for each person who trains with him. Come take a class and see for yourself!”
Katherine
“Great coach and focus on what you need to work on.”
Tony Deva
“As a fighter for the gym Nico's S&C classes have already helped me immensely.”
Khalil Tate

“Nico did indeed take it seriously, and the results have been spectacular. Suffice to say that my formerly somewhat mousey grandkid is now a Muay Thai addict, and will be back for more…”

Scott M

“Every class is well-structured. From warm-ups all the way through the learning outcome of the day, it all flows together intentionally. My technique, fight IQ, and fitness levels have noticeably improved. If you're looking for a coach who actually has a program and a purpose behind every class, Nico is your guy!”

Germaine Gonzalez

“Started training with Coach Nico because I needed to add S+C to my routine. And wow, what a difference it's made in a short amount of time. The classes are small and tailored to your individual goals. Nico is very knowledgeable and will make your experience equally challenging and rewarding.”

Renata Geraldo

“I started working with Nico in June of '24, to improve my mobility, coordination, and overall fitness, and I've found him to be an amazing coach and instructor. I've progressed a ton since starting with him and I can't recommend him highly enough!”

Noah Choi

“Excellent training! Pushes past your limits yet mindful of your capabilities!”

Marjoe Jr Delacruz

“Nico designs each session to match participants' specific goals, whether they are beginners building confidence or seasoned athletes refining performance. Genuine care for each person who trains with him. Come take a class and see for yourself!”

Katherine

See all 13 reviews on Google

Come as you are

You don't need to be in shape to start — most people begin because they don't feel it. Your first class is free, inside Muay Thai Iyarin in Ballard, Seattle.

Book your free trial