999 W Main St Suite 100
West Dundee IL 60118
828 West Main Street, Merced, CA 95340
(209) 580-4496
Accelerate your Performance-Your body, your goals, your program
Built for RESULTS: We create custom programs for adults 50+, weight loss transformations, athletic performance, and pain-free movement—backed by physical therapy expertise.
Biggest Hurdles:
Accountability
How we can help: Around the clock communication with industry leading trainers. Daily tasks & weekly body scans to track progress.
Life Balance
How we can help: We guide clients towards a realistic balance for a sustainable, healthy lifestyle.
Nutrition
How we can help: We’ll design a plan for you that’s both effective and enjoyable. No more fad diets or sacrifices. Meal preparation is also available.
Community
How we can help: Every program is custom-built by our PT-supervised team for YOUR body—whether you're maintaining independence at 60, losing weight for good, or training for your sport.
About Accelerate Performance Personal Training
Everything you’ll need to transform, under one roof.
Our transformation program is designed for everyone! We tailor it to each member. You'll be paired with an expert coach who perfectly matches your style and needs. No matter your age, injury history, goals, fitness level, or experience, you're welcome at Accelerate Performance Personal Training.
Private Coaching
So we can focus on exactly what you need while keeping a close eye on your progress. Your coach will adjust your program as needed, keeping you in momentum!
Group Workouts
Strength semi-private and partner training so you can burn a ton of calories each week while never seeing the same workout twice.
Nutrition Plans
Healthy nutrition plans and meal prep are based on the foods you enjoy. We teach you how to balance healthy foods with everyday life so you don’t put weight back on after your “diet” is over.
Goal Setting and Tracking
Bi-Weekly goal setting and tracking to hold you accountable while also knowing exactly what’s happening with your body as it changes.
Specialty Programs
Medical weight loss management and meal prep so you’re equipped with everything you need to finally transform your body and mind for good.
Gym Access
So you can workout whenever you’d like, in a very private atmosphere. Your coach may even prescribe homework to be done on your non-training days in the open gym based on your goals.
What Our Client Says:
"Great atmosphere, great coaches , and great people. My favorite place to work out! Join SIEFIT it has the best thing I’ve done for myself. My gratitude to SIEFIT is immense, and for good reason. The day I became a member of this gym, I had no idea that I was entering a space that would become my happy and favorite place to be. The community is incredible, and the coaches are top-notch. As I reflect on my journey here, I am reminded of the fantastic people I have met, the remarkable progress I have made, and the benefits to my health. Thank you, SIEFIT, for your tireless support and motivation. Happy Thanksgiving to the SIEFIT family."
Ester D
" AMAZING GYM, AMAZING WORKOUTS! Excellent fitness training. Trainers who really care and go above and beyond to help you achieve your goals. A small and private gym that feels more personal. All the fellow members are inspiring. I’ve been going to SIEFIT for a year now and have achieved better results in that time than I have in years at other gyms. WANT A NEW LIFESTYLE CHANGE COME HERE ! ! ! THERE IS NO OTHER PLACE BETTER THEN SIEFIT !! Highly recommended! "
Alondra
" I have been a member of SIEFIT for over a year already. Sierra and her trainers have been the BEST I have ever worked with.. I have always enjoyed fitness and have worked with several personal trainers but this gym has been by far my favorite place and plus the vibes are unmatched anywhere else. This gym delivers RESULTS !! I’m addicted to showing up and continuing my fitness journey!! Thank you SIERRA and coaches (Joe,Zoie and Ale) for always delivering the best workouts and pushing us to the max.. Get your membership now you won’t regret it!!! It’s Worth it! 🙌💪🏼❤️🔥 "
Janet
Schedule the perfect day and time to come into the gym. You’ll meet with our program director for a 1 on 1 consultation. We make this super simple, don't sweat it
We’ll learn all about you, and you’ll learn about our us. We’ll discuss the Transformation Program that makes the most sense based on your goals.
Once we’ve put together the perfect Transformation Program for YOU, we’ll introduce you to your Transformation Expert Coach who will be with you every step of the way. Together, you’ll get started.
Client experience:
Tamika is a fantastic trainer who changed my life! I have lost over 30 lbs and have become stronger and more agile.
All this at age 50! I would recommend her to anyone committed to changing their health.
MARK PINTOR
I have been working out with Tamika for 1 1/2 years. She not only helps me to be stronger but she also really checks my form. My knees used to cause me a lot of pain, a lot of it from a trainer that really didn’t understand working with older people.
I’m 60 now, and my knees rarely hurt anymore, maybe when it’s going to rain, I can get up from the floor without using my hands. Just with my legs. I really wanted to be strong enough to do that. Give yourself the gift of strength and a few laughs along the way. You won’t regret it!
COLLEEN LEDFORD
I’m down 35 pounds (60 pounds now) since training with Tamika!
Feeling stronger and all around BETTER AND HEALTHIER!
MEGAN BA
Progression
How we can help: Around the clock communication with industry leading trainers. Daily tasks & weekly body scans to track progress.
Workout
How we can help: We guide clients towards a realistic balance for a sustainable, healthy lifestyle.
Nutrition
How we can help: Learn how to eat delicious foods while saving time, money, and getting results.
Hi! We're A Local Gym In Merced, California.
Established in 2016, it’s our mission to help people locally in Merced, surrounding areas or online to get fit, stay healthy, and live life on their terms without fitness being an obstacle.
FREQUENTLY ASKED QUESTIONS
How Much Are The Memberships?
Memberships at Accelerate Performance vary based on your individual goals, training frequency, and services needed. Whether you need weight loss coaching with medical weight loss management, athletic training, movement rehabilitation, or Everstrong Fitness, we design the perfect program first—then discuss investment. Every program is personalized, so pricing reflects YOUR specific needs.
Do I Have To Have Experience To Workout At Accelerate Performance Personal Training?
Not at all. Our gym is designed for beginners to advanced, and we’re with you every step of the journey!
Do You Offer Medical Weight Loss Options?
Yes! In addition to our comprehensive training and nutrition programs, we offer doctor-prescribed medical weight loss management when appropriate. This integrated approach combines expert coaching with medical support for optimal, sustainable results.
What Makes You Different From Other Gyms?
Three things: (1) Physical therapy expertise means we understand bodies at a clinical level, (2) Personalized programs for every age and goal—not generic classes, (3) Comprehensive approach covering youth athletics, weight loss, medical weight loss management, injury recovery, and 50+ fitness. We're not a big box gym—we're a performance center where you Train With Purpose.
Do I Have To Commit To A Long-Term Membership?
Absolutely not! Program length is based on YOUR goals and current situation. We don't believe in forcing 12 or 24-month contracts—we believe in earning your trust through results. You stay because it works, not because you're locked in.
I Want To Get Into Amazing Shape, But I’m Scared To Get Started. Help!
We got you. We understand getting started is the hardest part. We’ll take it one step at a time. Step 1, come in for a “no sweat intro” and have a chat with us. No working out, no sales pitch, we’re just going to talk about your goals, that’s it. If you’re excited about what we talk about, we’ll move on to Step 2. No pressure, we’re coaches, and we’re here to help.
I'm Over 50 And Worried I'm Too Old To Start. Can You Really Help Me?
This is our specialty! Our Everstrong Fitness program is specifically designed for adults 50+ who want to build strength, improve balance, and maintain independence. We understand how bodies change with age, and we know how to train safely and effectively. You're not too old—you're ready.
I Have Chronic Pain/An Old Injury. Can I Still Train?
Yes! Our physical therapy expertise means we specialize in working WITH your body's limitations. We assess movement patterns, address pain at the source, and build programs that strengthen weak areas while avoiding aggravation. Many clients come to us IN pain and leave pain-free.
Ready To Get Started?
Discover How You Can Transform Your Body And Life With The Help Of A Transformation Expert Who Will Be With You Every Step Of Your Journey!
We KNOW You Have It In You! Will You Be Our Next Success Story?
Powerüft is a champ in providing its users with absolutely everything a fitness or gym site needs.
Our Socials:
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Important Links
Important Info
working hours
Monday — Friday:
07:00 - 21:00
Saturday:
07:00 -10:00
Sunday Closed
Important Info
Staffed hours
Monday to Friday:
4:30 am - 12:00pm
1:30 pm - 8:00 pm
Saturday:
6:00 am - 12:00 pm
Sunday:
CLOSED
