Treadfit is a rapidly growing fitness brand that provides small group customized workouts from certified trainers. Each class will improve your overall fitness levels using interval training on the treadmill, coupled with full-body strength training. At Treadfit, no class is ever the same!

The Workout: Treadfit’s small group classes are the perfect combination of cardio and strength training. Under the guidance of experienced, certified instructors, clients will burn on average between 400-800 calories per class. Treadfit’s workout will increase endurance and improve fat burning – resulting in a stronger, faster, and leaner you! Everyone is welcome at Treadfit: walkers, joggers and hardcore runners. Classes are open to all adults and teens, ages 18 and older.


Single Class


5 Class Pack


Student 5 Class Pack


10 Class Pack


15 Class Pack


20 Class Pack





Essential Starter

8 classes/month




12 classes/month




16 classes/month



Basic Plus

20 classes/month




24 classes/month





Lauren is the owner of Treadfit Shorewood, a sports performance specialist, and an ACE certified Group Fitness Instructor.  She participated in sports growing up, but it was not until 2008 when she was diagnosed with Type 1 Diabetes that exercise became an important aspect of her daily life.  She started as a client at Treadfit Beverly and soon after became an instructor at both the Beverly and Frankfort locations. Lauren is a full-time teacher outside of Treadfit and truly enjoys helping others became the best versions of themselves.


Jenny, an ACE certified group instructor and nutrition specialist, is the founder of Treadfit. After completing five marathons and several half marathons, she began experimenting with shorter bursts of high intensity running mixed with strength training. She saw dramatic improvements in her fitness level, and decided to leave distance running behind. Jenny brings her love of running and fitness to the unique format of Treadfit’s workouts.


Kit has always had a love of fitness. In high school, she ran on the track team & in college, she began strength training. After having kids, she taught pre/postnatal Fit4Mom group fitness classes for 5 years & quickly found her biggest passion of helping people reach their fitness goals. Recently, she became an ACE certified personal trainer & is looking forward to inspire clients during their workouts.

Sara McGee

Sara has always had a passion for both fitness and teaching. She recently decided to combine the two and received her ACE Group Fitness Instructor certification. After working out at home for years, she tried out Treadfit last winter and quickly fell in love with the classes and the atmosphere. Healthy living and fitness help Sara stay on her toes with her two little ones at home. Sara loves helping others meet their goals and feel good about themselves. She brings infectious energy and dedication to every class! 

Cover for Treadfit Shorewood
Treadfit Shorewood

Treadfit Shorewood

Small group fitness classes that combine cardio and strength training for the perfect workout!

1 day ago

Treadfit Shorewood
⚠️Currently we have a noon strength on Mondays and Fridays.💪Who wants to see more noon classes?⬇️⬇️Commnet below:🔵Strength, Traditional, or express🔵Day preference ... See MoreSee Less
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2 days ago

Treadfit Shorewood
💪Did you know we offer an express version of our Traditional class?👟In this 30-minute class, clients will work through interval blocks on the treadmill coupled with full-body strength training. Be prepared to work hard in this class; we make the most of your 30 minutes!⬇Try out an express class:Tonight (Tuesdays) 6:30pmThursdays 6:30pmFridays 6:30am ... See MoreSee Less
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3 days ago

Treadfit Shorewood
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7 days ago

Treadfit Shorewood
🎂🎉Join us in wishing the lovely Robyn Spizzirri a very Happy Birthday today!! ... See MoreSee Less
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1 week ago

Treadfit Shorewood
🏃‍♀️Happy Global Running Day! ⬇️⬇️Comment below how you participated today!🚶‍♂️🏃‍♀️Whether it was a walk or jog outside or you attended a Treadfit class, let's celebrate the many benefits running and walking provide us! ... See MoreSee Less
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2 weeks ago

Treadfit Shorewood
🇺🇲Thank you to the brave men and women who have made the ultimate sacrifice for our freedom. ... See MoreSee Less
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2 weeks ago

Treadfit Shorewood
🏃‍♀️💪Be sure to book those classes for the week!💪Tomorrow: NOON strength added. No 4pm and 5:30pm ... See MoreSee Less
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4 weeks ago

Treadfit Shorewood
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4 weeks ago

Treadfit Shorewood
💪Top 5 Misconceptions about Treadfit:1. I am not a runner. You do not have to be a runner to benefit from Treadfit’s unique workout. Walkers, joggers, and runners can benefit from the combination of cardio and strength training. Our workout is individualized so that each client is working at an individual pace. 2. I run outside, not on a treadmill. Treadfit provides a challenging treadmill workout that incorporates bursts of speed and incline. Incorporating speed and inclines into your runs will improve your endurance, leg strength, calorie burn, and lung capacity. 3. I hate running! No worries, our Strength class is perfect for you! In this forty-five minute class we focus solely on strength training. Strength training has been proven to build lean muscle, boost metabolism, and prevent injuries.4. I do not like to work out in front of other people. Treadfit’s fifty-minute workout is fast paced, changing every thirty seconds to a minute. No one has time to focus on anyone but themselves!5. I need to get in shape before I try a class. Treadfit’s clients range from walkers to joggers to avid runners of all ages! We provide both modifications and challenges for each exercise to meet you where you are! Come try out a class! First class is FREE, link below: ... See MoreSee Less
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  • After a bad day at work, going to Treadfit wasn’t something I wanted to do but I went and had a great workout!! Lauren does a great job motivating you to work your hardest! I continue to look forward to my workouts even on those bad days!

    Andria Lyn Avatar Andria Lyn
    February 16, 2023

    I attended my first class today and it was better than expected! Lauren made you feel motivated. This is a great way to get your workout in, the time slots offered are perfect for anyone who works full time. I will be adding these classes to my weekly routine!

    Amber Engstrom Avatar Amber Engstrom
    November 23, 2022
  • I haven’t worked out in such a long time so walking in I was so nervous. From the start, walking in was not intimidating at all and Lauren made me feel comfortable immediately! The workouts are hard but Lauren and Kit are awesome and encourage you to push yourself while also doing what you are comfortable with. This was the perfect place to get back into my fitness journey!

    Sam Zwahlen Avatar Sam Zwahlen
    December 9, 2022

    I have not worked out in probably 6 or 7 years and saw some mutual friends trying out treadfit… so I finally decided to try the 7 day free trial and fell in love! I love being able to schedule my workouts ahead of time! The times are great for my schedule. I have only had the pleasure of having class with Kit & Lauren and both of them are so welcoming and great! Lauren really pushes me to do my best & Kit is great helping me with form and making sure I’m doing everything correctly! All the ladies I have shared class with are wonderful & I love what a welcoming environment i feel walking in.. can’t wait to keep going!

    Kristin Ali Avatar Kristin Ali
    February 11, 2023
  • I heard about Treadfit thru my run club. I like running but want to tone my body. so I did the 7 day trial and then bought the 10 class pass. I have tried the strength class and the treadfit class...I LOVE the treadfit get cardio and strength. you will walk away sore the first few classes...but it gets better....and it's a GOOD hurt!!! I like that the class is different everytime you go in!!

    Nichole Gunty Zemaitis Avatar Nichole Gunty Zemaitis
    February 2, 2023

    Treadfit is a great full body workout for anyone ! The class has options to meet you where you are in your fitness journey and it has options to push you towards your goals. I love the variety and the enthusiasm of the instructors. I look forward to my class time each week. Thanks to Lauren and Kailee for pushing me!

    Jennifer Warwick Craig Avatar Jennifer Warwick Craig
    February 28, 2023
  • I have had a great time working out with Kit and Lauren. The five am classes are the best way to get your morning started!!!! Don’t be scared because it’s a treadmill workout. They focus on competing with yourself and not others. So whether you are an avid runner or just a walker Kit and Lauren can personalize the class for you and help you get stronger

    Melissa Kristine Avatar Melissa Kristine
    December 9, 2022

    Awesome class that combined cardio and strength training. Class was scaled to all abilities. The instructor Lauren was motivating and supportive. Looking forward to my next class.

    Kathy Sullivan Avatar Kathy Sullivan
    November 12, 2022
  • The 50 minute class was wonderful, working both cardio and strength. Lauren's coaching was just what I needed, encouraging me to do my best, but not too pushy.

    Janet Ruth Avatar Janet Ruth
    April 22, 2023

    Absolutely LOVE every single class I have taken at Treadfit Shorewood. Each class is different and I always burn over 500 calories! Today alone I am at 716 calories burned! Lauren really does a fantastic job instructing us and she also pushes us to the next level! So glad I decided to take the plunge and try Treadfit Shorewood out!

    Karissa D'Amico Avatar Karissa D'Amico
    December 17, 2022
  • This was such a fun class ! It’s hard and makes you push yourself but you’re not overdoing it because you’re in control of what makes you comfortable! Lauren is an awesome instructor too! She makes you push yourself to the best of your ability ! I can’t wait to take more classes ! Highly recommend !

    Lauren Nicole Avatar Lauren Nicole
    February 11, 2023

    I’m back at the gym and so happy. Treadfit is the perfect fit for me. I love the the teachers, the music, and most of all the workouts. I appreciate the instructors watching over you to keep your form correct.

    Lorie Zanelli Avatar Lorie Zanelli
    February 11, 2023
  • I am having so much fun at Treadfit! The workouts are always different and challenging. I love the small class size. I appreciate the early morning classes before going to work!

    Tricia Loomis Oostema Avatar Tricia Loomis Oostema
    December 6, 2022

    I stepped out of my comfort zone and participated in a class yesterday. After 8 years of no working out, there were times during the workout I thought I may die lol. The Beauty of this work out is you are encouraged to go as hard as you can but reminded you know your limits. That was extremely helpful knowing no one was going to scream and yell because I wasn't moving fast enough. Today, it hurts to sit, my arms hurt lifting my purse and when I stand up I look I could be 90 yrs old 😀 I will be back. Highly pain, no gain.

    Paula Rae Donoho Avatar Paula Rae Donoho
    November 14, 2022
  • I’ve never stuck to working out , I’ll do it a couple weeks and I’m over it! I’m over a month in and I’m addicted . I look forward to class and hate when I miss a day. Lauren is amazing. I feel so comfortable in her class. If you haven’t tried it you need too I promise you will love it ! 😁

    Amanda Catalani Avatar Amanda Catalani
    February 9, 2023

    This place is awesome! It’s been a while since I have worked out, so I was pretty out of shape. I was able to tailor the class to my abilities and get a great workout. The instructors are so motivating and helpful. The classes are never the same which makes the time go by so fast. I can’t recommend Treadfit enough!!

    Jennifer Helling Kobus Avatar Jennifer Helling Kobus
    February 9, 2023
  • I gave the 7-day pass a whirl. I love the variety that Treadfit offers! I also love that I can get my workout done in the morning before work! Highly Recommend!

    Jessica Lynn Avatar Jessica Lynn
    February 26, 2023

    I haven’t worked out in years and was super nervous to walk in. From the start I felt welcome, encouraged, and part of a team! The workouts are hard, but Lauren and Kit are awesome motivators! And the playlists are pretty fantastic too! I now look forward to working out!

    Julie Shimkus Conterio Avatar Julie Shimkus Conterio
    December 9, 2022
  • I love the class sizes and how classes are done. I don’t think in 25 classes, I have ever repeated the same workout. Exercises may be the same, but the instructors are sure to encourage you and keep you going throughout the entire workout. It is my favorite place to be when I want to workout.

    Sarah Elizabeth Avatar Sarah Elizabeth
    February 27, 2023

    I love the environment at Treadfit Shorewood. It’s so welcoming and not competitive. The only person you compete with is yourself and I love how everyone can push themselves at their own pace. The trainers are encouraging and I love their energy. I’m so glad I found this place!

    Robyn Spizzirri Avatar Robyn Spizzirri
    February 2, 2023