About Coach Zach

Zachary Arena

My name is Zachary Arena, but most people know me as Coach Zach. I graduated from Bridgewater State University with a bachelor’s degree in Exercise Science and have spent the past 3+ years coaching at Impact MetroWest.

I am also a Certified Personal Trainer through ISSA and have earned certifications through EXOS Fitness Specialist (FS) as well as Pre-Script Levels 1 & 2. I believe that great coaching never stops with experience alone, which is why I’m committed to continually learning and refining my craft to provide the highest level of coaching for every client.
My passion is helping people move better, get stronger, and build confidence through intelligent, individualized training. I believe fitness should do more than improve how you look—it should help you feel better, move without pain, and improve your quality of life for years to come.

Throughout my time at Impact, I’ve had the privilege of learning from Coach Peter, Coach Tiff, and an incredible coaching team that has challenged me to continually grow my knowledge and refine my coaching. That mentorship, combined with my formal education and continuing certifications, has shaped my approach and reinforced my belief that great coaching is about understanding the individual in front of you—not applying a one-size-fits-all program.
Sports have always been a huge part of my life. Growing up, I competed in football, basketball, baseball, and powerlifting. Those experiences taught me the value of discipline, consistency, and hard work—lessons I now strive to pass on to every client I coach.

Whether your goal is to lose body fat, build strength, improve athletic performance, or simply move through life with less pain and more confidence, I’m committed to helping you get there. My goal isn’t just to help you exercise—it’s to help you build a healthier, stronger lifestyle that lasts.

I’m grateful to be part of the Impact MetroWest family and look forward to making a positive impact on your life, one workout at a time.