Katie Kickbutt Owner and Operator

Katie is AFAA certified in Group Fitness, POUND Fit and Cardio Kickboxing. She has taught a variety of fitness classes in Boston and the South Shore for the past 7 years! Since college, Katie has been a fitness fanatic.

Realizing the benefits both mentally and physically of being active, Katie wanted to share this with others. Always encouraging her friends, colleagues and family to take a class with her or run a race, she knew she was meant to motivate.  In 2011 Katie started her own Bootcamp at a park in Quincy called Katie’s Kickbutt Bootcamp. (Yes, it all started at a park!)

She knows what is like to train hard, reach goals and push herself. Katie has participated and placed in several 5ks, 10ks, sprint duathlons and triathlons. Katie has also participated in 3 natural figure competitions. These competitions taught her the strict dedication and hard work that makes her the great teacher she is today.

Running over 40 classes a week, Katie is highly dedicated to getting you the BEST work outs on the South Shore and hold you accountable along the way. Her motivation, positive energy and commitment to each client makes Commit 2B Fit beyond the rest and the only place to workout on the South Shore! Come try one of her speciality classes today in Weymouth or Quincy!


Katie Bibeau

She received her undergraduate degree in Exercise Science from Sacred Heart University in Fairfield, Connecticut in May 2007.

Katie is a Certified Personal Trainer and Group Fitness Instructor through AFAA. Her signature class Total Body Tone and Kettle Bell are sure to Kick your Butt! Katie is motivating and very helpful. She puts her personality into every class she teaches and makes them challenging and fun! 



Katie Fitzpatrick

Katie is a perfect fit for the Commit 2B Fit Studio with her energy and enthusiasm for Committing 2B Fit! Katie is super motivating and gives you the best work outs around always making you laugh and have fun while kicking butt! 

A active runner and mother of 3 Katie loves working out and it shows it in all her classes. 
She is certified through AFAA in Group Fitness.



Lauren Stants

Lauren joined the Studio in November 2012 and has stay committed since participating in a Spartan race and several 5ks and 10ks! 

Her positive energy and enthusiasm is what the studio is all about.
Lauren takes working out very seriously and always challenges her students. 
Lauren was recently certified with AFAA in Group Fitness and is looking into advancing her education in fitness. Her classes are great for beginners and advance. Come Kickbutt with her!



Melissa O'Donnell Byrne

 Melissa was one of the first C2BF members when the studio opened in October 2012, and in February 2014 she became part of the staff after becoming certified in Group Fitness with AFAA. In February 2015 she continued her AFAA education and got an additional certification in Kickboxing, one of her favorite classes to teach!

Melissa’s passion for fitness, commitment, competitive nature and enthusiasm makes her class challenging and rewarding. She is always changing up her music and routines to keep workouts fresh and fun. We are excited to have her as a part of our Kickbutt staff team!



Lauren Mancini

We are excited to welcome Lauren to our staff. Her positive attitude and commitment to health and exercise is a great addition. Lauren is a registered dietitian and nutritionist. She knows one of the most important part of a committed lifestyle is fueling up with healthy choices.

She loves switching it up using different equipment and changing up her exercises. We are happy to have her on our team with her background in nutrition and her amazing energy she is a fabulous asset. Lauren received her AFAA Group Fitness Certification in August 2015.



Samantha Cox



Samantha is definitely committed to a healthy lifestyle. Starting at the age of 3 she trained as a dancer in ballet, jazz, and musical theater. When she moved to London at the age of 15 her parents ended up training her in Latin Ballroom as well. She competed professionally for several years. She then moved back to Boston in 1994 and taught ballroom classes part-time as well as choreographed many middle and high school productions.

She teaches Barre and PiYo and finds both as a way to continue using her training to help others lose weight, feel strong and tone up! Come check out a class and get moving!



Heather Feeley Kippenberger


Heather is a true rockstar! She teaches POUND here at the Commit 2B Fit Studio 3 days a week, one in Quincy and two in Weymouth. She is certified in both POUND Fit and Zumba. Her amazing energy is contagious and she keeps you motivated through out her classes. You will leave her class drenched in sweat and relieved of any stress of your week!

Heather has only been teaching for 1 year, but is a natural. She keeps you coming back for more and makes her 45 minute classes fly by. When she instructs she is easy to follow, modifies for beginners and every week adds new tracks! Come take one of her classes you won’t regret it!



Alex Powers Celluci

Alex has been a member of the Commit 2B Fit Studio since 2012. She certified by AFAA in group fitness instruction. She keeps her classes challenging and fun at the same time.

Alex thoroughly enjoys long distance cycling, paddle boarding, and running. She firmly believes a body in motion stays in motion. Alex started on the C2BF team in September and teaches 3-4 classes a week.