Meet Eric
Founder & Head Coach, Kin Fitness
NSCA-Certified Personal Trainer,
ACE Youth Fitness Specialist
Eric McCaslin
Kin Fitness was founded on one core belief:
Exercise should support your life — not compete with it.
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With over 15 years of experience coaching adults, athletes, and families, Eric is passionate about helping people move better, build confidence, and train in a way that feels sustainable for the long run.
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His coaching style blends thoughtful assessment, smart programming, and encouragement — meeting each client where they are and building from there.
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Right at the start, he focuses on how you move — identifying imbalances, improving mechanics, and creating a foundation that supports long-term strength and resilience.
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Whether you're returning after time away, managing aches and pains, or looking to take your training to the next level, Eric builds a plan that works for your body — not against it.
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As a member of the Newburyport community and a parent himself, Eric understands the demands of real life — work, family, stress, and everything in between.
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Kin Fitness was built to be more than a gym. It’s a place where:
• Adults feel supported
• Kids build confidence
• Families grow stronger together
• Progress is celebrated
That community-centered focus is at the heart of everything he does.
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