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About

Alvaro "Chief" Acosta

born and raised in East Los Angeles, California. Growing up, I faced my share of challenges and often found myself heading down the wrong path. Life began to change when my twin brother joined the United States Marine Corps, inspiring me to find a greater purpose of my own. In 2012, I enlisted in the United States Navy, a decision that gave me discipline, direction, and the foundation to become the man, leader, and father I am today.
I currently serve on active duty as a Logistics Specialist Chief in the United States Navy. Throughout my career, I have been stationed in Japan, San Diego, Lemoore, and now Port Hueneme, California. My time in the Navy has strengthened my leadership, work ethic, and ability to perform under pressure. Outside of uniform, I am a proud single father to my six-year-old daughter, Camila Alicia, who continues to be my greatest motivation and purpose.
My passion for fitness, discipline, and personal transformation led me to become certified through NASM, ISSA, and ACE. Alongside my twin brother, I am building Eastside Bull Athletics, a coaching business rooted in hard work, accountability, and the belief that your past does not define your future. Eastside Bull Athletics is not only a coaching business but also a lifestyle clothing brand that represents discipline, resilience, and pride in the journey. Our mission is to help others build strength, confidence, and discipline through fitness while showing that with commitment and consistency, anyone can transform their life.

Andy "Gunny" Acosta

GROWING UP IN EAST LOS ANGELES, CALIFORNIA, I LEARNED EARLY THAT YOUR CIRCUMSTANCES DON'T DEFINE YOUR FUTURE, YOUR DECISIONS DO. AS A TEENAGER, I REALIZED THE PATH I WAS HEADING DOWN WASN'T THE ONE I WANTED FOR MY LIFE. I KNEW I NEEDED A FRESH START. WHILE STILL IN HIGH SCHOOL, I ENLISTED IN THE UNITED STATES MARINE CORPS THROUGH THE DELAYED ENTRY PROGRAM. AFTER GRADUATING IN DECEMBER 2009, I LEFT EAST LOS ANGELES BEHIND TO BEGIN A NEW CHAPTER BUILT ON PURPOSE, DISCIPLINE, AND SERVICE.
EARNING THE TITLE OF UNITED STATES MARINE BECAME THE TURNING POINT IN MY LIFE. IT INSTILLED THE DISCIPLINE, RESILIENCE, AND PURPOSE THAT SHAPED THE LEADER, HUSBAND, FATHER, AND COACH I STRIVE TO BE EVERY DAY.
TODAY, I CONTINUE SERVING ON ACTIVE DUTY AS A MARINE CORPS CAREER COUNSELOR. MY CAREER HAS TAKEN ME ACROSS THE WORLD WITH ASSIGNMENTS IN JAPAN, CAMP PENDLETON, QUANTICO, AND NOW CAMP LEJEUNE, NORTH CAROLINA. THROUGHOUT THOSE EXPERIENCES, I'VE LEARNED THAT LEADERSHIP ISN'T ABOUT HAVING ALL THE ANSWERS, IT'S ABOUT SERVING OTHERS, LEADING WITH EMPATHY, AND HELPING PEOPLE RECOGNIZE POTENTIAL THEY OFTEN DON'T SEE IN THEMSELVES.
ONE OF THE GREATEST TESTS OF MY RESILIENCE CAME IN 2021 WHEN I WAS NEARLY MEDICALLY SEPARATED FROM THE MARINE CORPS DUE TO SEVERE BACK INJURIES. I SUFFERED CONSTANT MUSCLE SPASMS THAT OFTEN LEFT ME UNABLE TO WALK, AND MEDICAL IMAGING REVEALED TWO COMPRESSED DISCS IN MY SPINE ALONG WITH ANOTHER DISC THAT HAD BEGUN TO HERNIATE.
AS I NAVIGATED MY RECOVERY, I REALIZED MANY OF THE RECOMMENDED TREATMENTS FOCUSED ON MANAGING SYMPTOMS THROUGH MEDICATION, NERVE ABLATIONS, OR SURGERY RATHER THAN ADDRESSING THE ROOT CAUSE. THAT EXPERIENCE PUSHED ME TO TAKE OWNERSHIP OF MY HEALTH. I IMMERSED MYSELF IN LEARNING ABOUT HUMAN MOVEMENT, BIOMECHANICS, STRENGTH TRAINING, REHABILITATION, AND NUTRITION, DETERMINED TO REBUILD MY BODY INSTEAD OF SIMPLY MASKING THE PAIN.
OVER THE NEXT TWO YEARS, I COMMITTED MYSELF TO STRENGTHENING MY CORE, IMPROVING MY MOVEMENT PATTERNS, AND RESTORING MY OVERALL PHYSICAL HEALTH. THAT JOURNEY ALLOWED ME TO RETURN TO FULL DUTY, CONTINUE SERVING IN THE MARINE CORPS, AND SUCCESSFULLY MEET EVERY PHYSICAL FITNESS REQUIREMENT.
MORE IMPORTANTLY, IT CHANGED THE WAY I VIEW FITNESS FOREVER. I LEARNED THAT TRAINING ISN'T JUST ABOUT LOOKING STRONG, IT'S ABOUT BUILDING A BODY THAT'S RESILIENT, FUNCTIONAL, AND CAPABLE OF CARRYING YOU THROUGH LIFE'S CHALLENGES. THAT EXPERIENCE BECAME ONE OF THE DRIVING FORCES BEHIND EASTSIDE BULL ATHLETICS AND WHY I'M PASSIONATE ABOUT HELPING OTHERS BUILD STRENGTH WITH PURPOSE, PREVENT INJURY, AND TAKE CONTROL OF THEIR OWN HEALTH.
OUTSIDE OF THE MILITARY, MY GREATEST ACCOMPLISHMENT IS MY FAMILY. MY WIFE, SABRINA, ALSO SERVES IN THE UNITED STATES MARINE CORPS AND HAS BEEN MY BIGGEST SUPPORTER THROUGH EVERY CHALLENGE AND MILESTONE. TOGETHER, WE'VE BUILT A HOME CENTERED ON FAITH, DISCIPLINE, AND UNWAVERING SUPPORT, AND SHE HAS EMBRACED AN INCREDIBLE ROLE IN HELPING RAISE MY SON, LORENZO AIDEN. THEY ARE MY GREATEST MOTIVATION AND THE REASON I STRIVE TO BECOME BETTER EVERY DAY.
OUR VISION EXTENDS FAR BEYOND WORKOUT PROGRAMS. HAVING LIVED THE DEMANDING MILITARY LIFESTYLE OURSELVES, WE UNDERSTAND HOW DIFFICULT IT CAN BE TO BALANCE CAREER, FAMILY, HEALTH, AND PERSONAL GOALS. EASTSIDE BULL ATHLETICS WAS CREATED TO PROVIDE THE STRUCTURE, EDUCATION, AND ACCOUNTABILITY WE WISH MORE PEOPLE HAD. WHETHER YOU'RE AN ACTIVE-DUTY SERVICE MEMBER, VETERAN, OR SOMEONE SIMPLY LOOKING TO IMPROVE YOUR LIFE, OUR GOAL IS TO HELP YOU BUILD SUSTAINABLE HABITS, UNDERSTAND YOUR BODY, AND DEVELOP THE DISCIPLINE NEEDED FOR LONG-TERM SUCCESS.
BUILD DIFFERENT. STRENGTH THROUGH DISCIPLINE.