ONYX MONK CORE

Build strength, improve mobility, increase energy, and create lasting wellness through personalized coaching.

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The Five Elements Training

A holistic framework designed to identify imbalances, build strengths, and support lifelong wellness.

Our coaching framework evaluates five key areas of health to identify strengths, weaknesses, and opportunities for growth.

The Five Elements

Earth

Strength & Stability

Air

Breath & Mobility

Fire

Energy & Performance

Water

Recovery & Balance

Spirit

Mindset & Purpose

Your Outcome

Gain a clear understanding of where you are today and receive a personalized roadmap to improve strength, movement, recovery, energy, and long-term wellness.

Discover your balance. Build your foundation. Unlock your potential.

Who We Help

Meeting you where you are and helping you build a stronger, healthier future.

Onyx Monk Core helps people build strength, mobility, and lasting health through personalized coaching. Whether you’re just getting started or looking to reach a higher level, every program is built around where you are today.

Beginners

Build confidence and learn proper movement foundations.

Busy Professionals

Efficient coaching designed around your schedule.

Adults 40+

Improve strength, mobility, and long-term health.

Weight Management

Build sustainable habits that support body composition goals.

Mobility & Recovery

Reduce stiffness, improve movement, and restore function.

Athletes & Martial Artists

Enhance performance, conditioning, and movement quality.

No matter your starting point, our goal is to help you build strength, move better, and live well.

How It Works

A simple system designed to help you achieve sustainable results —not temporary fixes.

1. Schedule Consultation

Discuss your goals and current challenges.

2. Complete Assessment

Evaluate fitness, mobility, recovery, and wellness.

3. Receive Your Plan

Get a personalized roadmap for success.

4. Begin Training

Build momentum with coaching and accountability.

Expected Results

Outcomes that support a stronger body, a healthier lifestyle, and long-term well-being.

Build Strength -Develop a stronger, more capable body for everyday life.

Move Better -Improve mobility, balance, flexibility, and overall movement quality.

Increase Energy -Build sustainable habits that support daily performance and vitality.

Recover Smarter -Reduce stress, improve recovery, and support long-term resilience.

Create Lasting Change -Develop the mindset and consistency needed for lifelong health and wellness.

Membership Options

Find Your Path to Strength, Wellness & Longevity

A simple system designed to help you achieve sustainable results—not temporary fixes.

CORE

Build Your Foundation

For those beginning their wellness journey or returning to consistent training.

  • Build healthy habits
  • Improve overall fitness
  • Increase energy & confidence

Best For: Beginners & lifestyle improvement

MOST POPULAR

PERFORMANCE

Develop Strength & Resilience

For those ready to make measurable progress in strength, mobility, and performance.

  • Increase strength & endurance
  • Improve mobility & movement
  • Achieve measurable fitness goals

Best For: Most clients

ELITE FLOW

Complete Wellness Transformation

For those seeking the highest level of coaching, accountability, and lifestyle integration.

  • Optimize recovery & wellness
  • Improve performance & longevity
  • Create lasting lifestyle change

Best For: Comprehensive support

Not Sure Where To Start?

Take the Five Element Assessment and discover which path best aligns with your goals, lifestyle, and current level of wellness.

Choose the level of support that best fits your goals, schedule, and lifestyle.

The Five Element Assessment

Meet Your Coach

Kwang Kwoo Bostic

Founder of Onyx Monk Core

My mission is to help individuals improve strength, mobility, wellness, and long-term health through an integrated approach that combines fitness, movement, mindfulness, and lifestyle coaching.

  • Associate Degree in Kinesiology

  • CPR/AED Certified

  • Wellness Lifestyle Coach

  • 20+ Years Holistic Arts Practice

  • Functional Movement Specialist

Ready To Begin?

Start with a free consultation and we’ll build a personalized path toward your goals.

Book Consultation

  • "What I appreciate most is that he makes fitness enjoyable. He’s constantly changing things up so workouts stay fresh, challenging, and fun. Over the past two years, I’ve developed strength and muscles I honestly never thought were possible — all while navigating a neck injury that Kwang consistently checks in on and thoughtfully accommodates."

  • “He varies every session to keep his clients interested, engaged, and making progress. His attention to detail is impressive and appreciated. I am happy to refer my friends and family (including my teenage son) to Kwang, so please don’t hesitate to book your first session with him. You will be so glad that you did.”

  • "I’ve been working with personal trainers for years, but when I met Kwang, I immediately knew he was different. I’ve never worked with someone so genuinely dedicated and passionate about people’s overall wellbeing. His positivity is contagious, and he creates an environment where you feel encouraged, supported, and never judged.

  • “Kwang emphasizes good form, which is especially important for those of us in midlife who may be returning to the gym for the first time in years. I look forward to my training sessions as an opportunity to invest in my personal growth and long-term fitness goals.”

  • “Coach Kwang is an outstanding trainer who is energetic and patient at the same time. He has a talent for meeting his clients at their respective fitness levels, and working up from there. He is always encouraging, and has a gift for pushing his clients to trust themselves and forge ahead.”

  • "Kwang cares deeply about both physical and mental wellness, and that comes through in every session. His approach to training has truly changed my life and my outlook on health and fitness."

  • "I trust him so much that I introduced him to my husband, and he has even welcomed my 9-year-old daughter into some of my workouts so she can learn early on that you’re never too young to begin your fitness journey and prioritize your health."

  • "Kwang is more than just an amazing trainer. He’s someone who inspires people to believe in themselves and build healthier, happier lives. Because of him, I can genuinely picture myself being one of those 90-year-old grandmas still running half marathons."