Lose Weight. Look Great. Feel Great.

Our personal Coaching Programs are designed around the needs and goals of the individual, with a specialized focus for helping women over 40. We are a private coaching facility that helps guide you every step of the way. Through our initial onboarding process and risk-free trial program we will help you determine what the best training option is for you, no matter if you’re a beginner or more experienced. This ensures you’re comfortable with a health and fitness routine, confident you’re following a program you can actually stick with, and keep you enjoying the process of getting results!

Membership Options We Offer:

  • 30-Day Trial Program
  • Private 1-on-1 Personal Training
  • Small Group Personal Training
  • 1-on-1 Nutrition Coaching
  • Virtual 1-on-1 Online Coaching

Getting Started Is Simple & Easy

The PowerStrength Service

The PowerStrength Difference

We’re a family-style, private coaching facility. A good deal of our members come from “the other guys” and you know what they do. They lock you into long-term contracts that you can’t get out of. They have a revolving door of trainers with overcrowded classes. Not to mention their bogus enrollment fees and bad customer service. We know youre left feeling frustrated with the lack of results and the time you invested that is gone forever.

At PowerStrength, we knock out the confusion and frustration you’ve had in the past and only focus on the results you want. Well design a program for you that you can actually stick to. No confusing contracts, no enrollment fees. All you have to do is show-up. You’ll always be with your coach, in a small, friendly environment so you’ll never have to think or be stuck around crowds of people. We meet you exactly where youre at. We’re with you every step of the way to provide what you need.

Give us 30-days and see if you feel the difference. See if we provide a fun, welcoming atmosphere where all the coaches know your name and truly care. Experience how a true coaching program looks like and see if we give you the support you need. After 30-days, if we don’t deliver on these promises, we’ll refund you every penny and we’ll part as friends.

See What Others Are Saying About PowerStrength

Frequently Asked Questions

Q: What time are sessions offered throughout the day?

A: Training sessions are offered throughout the day Monday-Friday and Saturday mornings.
Our flexible schedule includes early morning, mid-morning, early evening, and evening sessions.

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Q: Will I be “on my own” in the gym or will I have a coach with me?

A: PowerStrength is a private, appointment-only Coaching Facility that specializes in personal training. Regardless of what session you attend you will always be led by a personal trainer, personally guided and coached through your session, and coached on how to optimize your health and results in the gym and out.


Q: I have a current or prior injury that impacts my movement. Can I still join PowerStrength?

A: YES! We will meet you where you’re at with your ability.  We have extensive experience working with a wide range of ability levels, including individuals that are limited by ongoing injuries or illnesses. And if we can’t serve you immediately, we will direct you to one of the professionals in our trusted network. 


Q: Is there nutrition guidance provided with a membership?

A: Yes. Included in your membership you will receive Nutrition information, resources, guidance, and overviews on supplementation,  and various recovery methods. We include this information so there is a clear path for the best results.

Personalized Nutrition Coaching packages are also available for further support & accountability.


Q: How is progress measured?

A: We measure progress through a few different avenues. The 2 main objective measurements are performance and body composition.

Performance refers to training and movement during your training sessions – are you improving, moving better, recovering faster, etc.

Body composition is measured using a tool called the “InBody”. This machine is a bioelectrical impedance analysis (BIA) tool that accurately measures body composition.

All new PowerStrength members receive a FREE InBody scan – this helps us set goals and develop a roadmap to meet your goals. We then use the InBody to measure progress on a timeline specific to the goals and needs of every client.


Q: Where are you located?

A: We have 3 conveniently located facilities in West Michigan  – Grand Rapids, Kenwood, and Jension. 

Our Grand Rapids facility is on 4 Mile road just west of Alpine Ave in NW Grand Rapids.

Our Kentwood facility is located on East Paris Ave, near the corner of 52nd Street 

Our Jenison facility is located off of Rosewood street near the 12th Ave/Chicago Dr. intersection


Grand Rapids – 919 Alpine Commerce Park NW, Grand Rapids, MI 49544

Kentwood – 5131 East Paris Ave SE, Kentwood, MI 49512

Jenison – 1308 Rosewood, Jenison, MI 49428


Q: How do I get started?

A: Start by filling out the form below, follow the prompt to schedule your 10-minute ‘Getting to Know You’ call, and your coach will guide you through the next steps on the call – it’s that simple and easy! We look forward to speaking with you!


Q: Is PowerStrength a Franchise?

A: No. PowerStrength is not a franchise and it is 100% locally owned and operated. Founder and Owner, Mark Ehnis, started PowerStrength in 2011 right here in West Michigan and it has grown into what you see today. Being family owned allows the PowerStrength Team unlimited freedom to keep the needs and well-being of the clients at the center of our focus. Everything is based around quality service to our local communities. We are proud to have grown into an industry leader through hard work, integrity, and serving the West Michigan community in a first-class manner.