Nutritional Counseling
Sustainable eating plans tailored to your goals and lifestyle. No extreme diets — a strategy you can actually maintain long-term.
Honolulu, Hawaii
One-on-one personal training tailored to your goals — strength, weight loss, nutrition, and the lifestyle to sustain it. Exclusively at BalanceCore Fitness Studios.
BalanceCore Fitness Studios, Honolulu HI
Eric Yamashita has built a reputation as Hawaii's premier personal trainer through one principle: your session is the only session that matters. Every workout is designed around your body, your goals, and your progress — never a generic program.
Based at BalanceCore Fitness Studios in Honolulu, Eric offers exclusively one-on-one training. No group classes. No distractions. Just focused, personalized coaching that gets results.
Whether you're working toward weight loss, building strength, recovering from injury, or simply building a healthier lifestyle, Eric brings the expertise, accountability, and enthusiasm to help you get there.
"Eric Yamashita has been instrumental in keeping me fit and healthy. His expertise and dedication are second to none."— Sam Choy, World-Renowned Hawaii Chef
Every plan is built around your body, your goals, and your schedule — not a template.
Eric trains clients exclusively one-on-one. You get his full attention, every session.
Fitness without nutrition is half the story. Eric integrates both into a complete approach.
Training at BalanceCore Fitness Studios — fully equipped, private, and professionally managed.
Sustainable eating plans tailored to your goals and lifestyle. No extreme diets — a strategy you can actually maintain long-term.
Targeted programs designed to build lean muscle and reshape your body through resistance and functional movement training.
Progressive overload programming to build real, functional strength — whether you're just starting out or an experienced lifter.
Evidence-based weight loss programs that protect muscle, support metabolism, and deliver lasting results without crash dieting.
Explosive power training to increase athletic performance, improve coordination, and boost cardiovascular conditioning.
Core-specific and stability ball training to improve posture, reduce injury risk, and build the foundation for all other movement.
Beyond the gym — habit formation, stress management, sleep, and recovery strategies to make fitness a permanent part of your life.
Eric has been recognized as one of Hawaii's leading fitness professionals, featured regularly on local television and in the community.
Eric brings his training expertise to KITV's Monday Morning Fitness series, sharing practical tips for Hawaii residents.
Watch on YouTube →
A deeper look at strength and conditioning techniques, demonstrating accessible workouts for all fitness levels.
Watch on YouTube →
Eric demonstrates core training and functional fitness routines live on Hawaii's morning news.
Watch on YouTube →
A real transformation story — how dedicated one-on-one coaching changed Ashlyn's health, confidence, and everyday life.
Watch the story →
"Eric Yamashita has been instrumental in keeping me fit and healthy. His expertise and dedication are second to none." — Sam Choy, World-Renowned Hawaii Chef
Read the article →"When you train with Eric Yamashita you get all the tools you need to make that physical and mental transformation."
"Eric Yamashita has changed my life. I lost 50 pounds in less than one year — from 252 lbs down to 203 — and went from a size 44 pant to a size 36."
"Having him as my personal trainer has been the best investment so far. I started training after having 2 kids and the results within 6 months were incredible."
"I lost 25 pounds and went from a size 12 to a size 6. Training with Eric was hands-down the best decision I made going into my wedding."
"After being told I had a shoulder impingement, I was afraid I'd never return to my sports. Seven months with Eric and I'm completely pain-free and back to full activity."
"Inspiration. Experience. Compassion. Humor. Eric is all of these things and more. He's become my best friend and the reason I show up every week."
"Eric is more than a trainer — he's become my life coach. I've been with him since 2001, and my son has been training with him since he was 12. He changes lives."
"He's the best trainer I've ever worked with. Eric trains my wife and me together and somehow makes every session perfect for both of us."
"THE BEST PERSONAL TRAINER ANYONE COULD ASK FOR!!!! I was over 40 when I started and after two years the results speak for themselves."
"I lost over 15% body fat training with Eric and I'm now preparing for my first bodybuilding competition. Six months ago I never would have believed that was possible."
"I started in August 2004 on multiple pain prescriptions. Training with Eric reduced my chronic pain so dramatically I was able to cut down to a fraction of my medication."
"I've known Eric for over 20 years. As a mother of four boys, his studio is a lifesaver — organized, convenient, and he genuinely cares about every client."
"Uncle Eric has become more than a trainer to me — he has become my friend. I've been training with him since I was 12 years old."
"Eric is not only a motivator and a source of inspiration — he keeps me accountable and genuinely invested in my progress year after year."
"I had a rotator cuff tear, frozen shoulder, and bursitis. After 25 years of weight training I thought my best days were behind me. Eric brought my range of motion all the way back."
"Having him as my personal trainer has been the best investment of 2010. His energy and knowledge make every workout something to look forward to."
"You are indeed my 'DREAM COME TRUE.' I lost over 10 pounds and feel better than I have in years. At 63, I didn't think this was possible."
"At 69, I wasn't sure I'd find a trainer who understood where I was coming from. Eric meets you exactly where you are and builds from there. No ego, just results."
"As a big wave surfer, I need sports-specific conditioning that most trainers don't understand. Eric gets it — and designs programs that directly improve my performance in the water."
"Training with Eric for the past year has been an awesome experience. His passion for fitness is contagious — I leave every session feeling stronger and more motivated than when I came in."
All sessions are 50 minutes, one-on-one, at BalanceCore Fitness Studios in Honolulu. Packages must be used within 6 months of purchase and are non-transferable.
| Package | Sessions | Price | Per Session |
|---|---|---|---|
| Single Session | 1 | $100 | $100 |
| Starter Pack | 10 | $950 | $95 Save $50 |
| Commitment Pack | 20 | $1,800 | $90 Save $200 |
| Best Value Best Value | 40 | $3,200 | $80 Save $800 |
| Package | Sessions | Price | Per Session |
|---|---|---|---|
| Single Session | 1 | $130 | $130 |
| Starter Pack | 10 | $1,300 | $130 |
| Commitment Pack | 20 | $2,400 | $120 Save $200 |
Ready to start? Have questions? Reach out directly — Eric personally responds to every inquiry.