What is H2F?
The Holistic Health and Fitness (H2F) System is designed to address the readiness of every Soldier. In the era of complex multi-domain operations, all Soldiers must build physical lethality and mental toughness to win quickly and return home healthy. The H2F System addresses readiness and ensures peak performance through the five domains of Physical Readiness, Nutritional Readiness, Spiritual Readiness, Mental Readiness, and Sleep Readiness.
The H2F Program operates at the brigade level and is staffed by Soldiers, DA Civilians, and Contractors who are dedicated to performance readiness. The team includes physical therapists, registered dietitians, occupational therapists, strength and conditioning specialists, athletic trainers, and cognitive performance specialists.
For more information regarding H2F, please see FM 7-22, Holistic Health and Fitness, or on the Army’s official H2F website at https://h2f.army.mil/.
Meet the team
Maj. Elizabeth Ressler, Program Director and Nutrition Program Lead
Maj. Elizabeth Ressler is a Registered Dietitian, serving as the Interim 165th Inf. Bde. H2F Program Director and Nutrition Program Lead. She is a Board Certified Specialist in Sports Dietetics. She obtained bachelor's degrees in Sports Medicine and Dietetics from the University of Virginia and Virginia Tech, respectively. Maj. Ressler completed her master's degree in Dietetics through the Military-Baylor Graduate Program in Nutrition. Upon completion of her master's, she completed a 12-month dietetic internship at Walter Reed National Military Medical Center in Bethesda, Maryland.
Capt. Jillian Barry, Mental Domain Lead
Capt. Jillian Barry is an Occupational Therapist serving as the Mental and Sleep Readiness Lead for the 165th Inf. Bde. H2F team. Originally from Connecticut, she loves to travel but is excited to be back on the east coast at Fort Jackson. She obtained her master's degree in Occupational Therapy from Bay Path University in Longmeadow, MA, where she also played soccer for 4 years. Prior to commissioning in the Army, she worked on the west coast in an outpatient clinic for 7 years treating a variety of patients with upper extremity injuries, neuromuscular, and lymphedema. Capt. Barry enjoys traveling the national parks, anything outdoors (as long as there are no snakes), reading, and knitting.
Paul Tandoc, Occupational Therapist
Paul Tandoc is a Registered and Licensed Occupational Therapist with the 165th H2F team. He obtained his Bachelor of Science and Master of Science in Occupational Therapy from San Jose State University. He served as an Active-Duty Army Occupational Therapist at William Beaumont Army Medical Center, Fort Bliss, Texas and Walter Reed National Military Medical Center, Bethesda, Maryland. He has certifications and training in Combat Operational Stress Control, Battlefield Acupuncture, Certified in Physical Agent Modalities, and is a 7H Upper Extremity Neuromusculoskeletal physician extender. Paul continues to serve as a Civil Affairs Officer at the 360th Civil Affairs Brigade (Airborne) at Fort Jackson, South Carolina. His previous assignments included Company B 416th Civil Affairs Battalion (Airborne), Camp Pendleton, California and Headquarters, Headquarters Company, 321st Civil Affairs Brigade, Joint Base San Antonio, Texas. Paul is working on completing his Project Management Professional certification. He enjoys running, hockey, fishing, woodworking, Legos, food, and motorcycles.
Capt. Michael Sevilla, Injury Control Domain Lead
Capt. Michael Sevilla is a Physical Therapist and Board-Certified Orthopedic Clinical Specialist with over 14 years of experience. He earned his Bachelor of Science in Physical Therapy from Manila Central University in 2011 and his Doctor of Physical Therapy degree from Arcadia University in 2018. He later obtained his Certified Strength and Conditioning Specialist (CSCS) in 2021 and is also certified in Dry Needling. He commissioned into the Army to serve those who serve, dedicating his work to enhancing Soldier readiness by helping service members recover from injury and perform at their highest level. In his free time, he enjoys family time, the outdoors, the beach, and competitive pistol shooting.
Ethan Hayes, Physical Therapist
Ethan currently serves as the H2F Physical Therapist for the 165th Infantry Brigade at Fort Jackson, SC. He received his Doctor of Physical Therapy from the University of South Carolina in 2021 and Bachelor of Science in Exercise and Sport Science from Coastal Carolina University in 2018. Prior to his role in H2F, he worked in an outpatient orthopedics and sports medicine clinic where he evaluated and treated various musculoskeletal pathologies and post-operative conditions. He holds certifications in Dry Needling through American Academy of Manipulative Therapy and is a Certified Strength and Conditioning Specialists through NSCA.
Ashley Muschiatti, Performance Dietitian
Ashley Muschiatti is a Registered Dietitian and Board-Certified Specialist in Sports Dietetics (CSSD) serving as a Performance Dietitian for the 165th Infantry Brigade H2F Team. Ashley is also a Certified Strength and Conditioning Specialist (CSCS) and brings a unique dual perspective with her background as both a dietitian and strength coach, allowing her to integrate performance nutrition in-line with soldier’s physical training to optimize readiness and overall performance. She obtained her B.S. in Exercise Science – Strength & Conditioning and B.A in Spanish Language from Appalachian State University in 2018, where she was also a 5-year Track & Field Athlete (Thrower). She then went on to complete the Coordinated Dietetics Program at Delaware State University. Prior to her role at Fort Jackson, she worked in various settings including college athletics, private sector sport performance gyms, and most recently working with NASCAR pit crew athletes. In her free time, she enjoys playing volleyball, competing in strongman competitions, or exploring new places with her St. Bernard, Bentley.
Graham Collopy, Cognitive Performance Specialist
Graham is a mental performance coach who has close to three years of experience working with military professionals, their spouses and dependents to help equip them with the tools they need to be resilient and high performing. Graham holds a Master of Science in Sport Psychology from Florida State University and will soon acquire the Certified Mental Performance Consultant certification (CMPC) through the Association for Applied Sport Psychology. Graham’s passion for fostering human growth and for problem solving is what drives him to be at his best and support the individuals who come through the 165th Brigade here at Fort Jackson. When he is not working, Graham enjoys trying out quality local restaurants, attending sporting events and getting outdoors whether that be by biking on local trails, paddle boarding at Lake Murray or going to the beach.
Sgt. 1st Class Cody Royster, H2F NCOIC
Sgt. 1st Class Cody Royster is a native of Berea, Ohio. He graduated high school in 2013 and attended Cuyahoga Community College before transferring to Otterbein University to continue his academic and football career.
In September of 2015, SFC Royster shipped off to basic training at Fort Benning, GA completing One Station Unit Training and shipping off to his first duty station at Fort Stewart, Georgia where he spent time as a SAW gunner in B-Co, 1st Bn. 30th Inf. Reg, 2IBCT, 3ID, and later becoming the battalion CSM driver. After 20 Months SSG Royster then PCS’d to Fort Hood where he immediately deployed on a training rotation with C-Co, 1/9 Cav 2ABCT, 1CD to South Korea spending time as a SAW gunner then moving to the mounted section as the Platoon Sergeants gunner eventually earing top shot in the battalion. After 30 Months at Fort Hood Sergeant 1st Class Royster PCS’d to 4th Bn. 3rd U.S. Inf. Regt. The Old Guard where he served as a Squad Leader for 35 Months. During his tenure at The Old Guard Sgt. 1st Class Royster conducted over 100 Ceremonies as the Joint Armed Forces Color Guard NCOIC to include wreath laying ceremonies at the Tomb of The Unknown Soldier, Positional Colors with POTUS, VPOTUS and numerous foreign dignitaries. Most notably Sgt. 1st Class Royster presented the colors to the Nation at the 2021 MLB All-Star game, 2022 NFL Pro Bowl and the 2022 NFL Superbowl in Los Angeles, California.
Most recently Sgt. 1st Class Royster completed drill sergeant duty serving as a Drill Sergeant for three years. Sgt. 1st Class Royster's awards and decorations include The Expert Infantry Badge, Air Assault Badge, Drill Sergeant Identification Badge, Army Achievement Medal(4), Army Commendation Medal (3 awards), National Defense Service Medal, Global War on Terrorism, Non-Commissioned Officer Professional Development Ribbon (2), the Korean Defense Service Medal, Army Service Ribbon, Army Good Conduct Medal (2 Awards) and Certificate of Achievement.
Sgt. 1st Class Royster has been married for 11 years to his spouse Brianna Royster. Together they have two children Ayden (15) and Sadie (7).
Specialist Ayanna Helms, Nutrition Care Specialist
Spc. Ayanna Helms is a 68M - Nutrition Care Specialist in the 165th Inf. Bde. H2F team. She is dedicated to supporting the health, readiness, and performance of Soldiers through nutrition education and wellness initiatives. She completed basic training at Ft Sill, OK and received her formal MOS training at Fort Lee, VA and Ft Sam Houston, TX. While previously stationed at Camp Humphrey’s South Korea, Helms worked with the Department of War attending to patients' nutritional needs in the hospital. As part of the 165th H2F team, you might spot her encouraging healthy eating in the dining facilities, helping tape recruits, or teaching nutrition classes to trainees. Outside of her military duties, Helms enjoys spending time with family and friends, staying active, exploring new places, playing football, and pursuing personal and professional growth.
Sgt. Michael Williams, Physical Therapy Specialist
Sgt. Michael Williams is a 68F-Physical Therapy Specialist assigned to the Soldier Performance Readiness Center (SPRC) with the 165th Infantry Brigade since April 2026. A former Division III collegiate wrestler, competitive powerlifter, and strongman athlete, Sgt. Williams combines elite athletic experience with clinical rehabilitation expertise. Outside of being a previous 15W UAS Aircraft Commander with 6-6 CAV Fort Drum, NY, he also served as the 10th CAB P3T NCOIC for 12 months and is a certified P3T Program Manager and Exercise Leader. SGT Williams is actively pursuing his Tactical Strength & Conditioning Certification (TSAC-F). To maximize force readiness and optimize injury prevention across the brigade. SGT Williams enjoys exploring with his family, traveling for competitions, and training his show-dog Burberry.
Emerson Lonasee, Strength and Conditioning Coach
Dedicated to unlocking human potential through fitness and performance, Emerson Lonasee is a Certified Strength and Conditioning Specialist with a passion for helping athletes and Soldiers reach their peak physical condition. He earned a bachelor’s degree in Exercise Science from Florida Gulf Coast University and is currently pursuing his master’s degree through the University of Florida. His journey into the world of sports and fitness began early, fueled by a curiosity about the science behind athletic performance. He had the privilege of interning at the collegiate level, gaining firsthand experience in designing and implementing training regimens that optimize strength, endurance, and agility. His previous work experience includes being a sport performance coach for Athletic Republic in his hometown of Fort Myers, Florida. His approach combines scientific precision with motivational coaching, fostering an environment where individuals can push beyond their limits and transform their bodies. When Coach Emerson is not at the gym, you might find him at a pool, hanging out with friends and family, or immersing himself in literature that nurtures both the mind and soul.
Erica Wright, Strength and Conditioning Coach
Erica Wright received a bachelor's degree in Driver's Education, Health and PE from Clarks Summit University in Pennsylvania and a master's degree in Exercise Science: Human Performance from Liberty University in Virginia. Wright was a high school teacher for eight years, working in Loudoun County and Roanoke City Public Schools in Virginia. While teaching, she developed a Strength and Conditioning/Outdoor Education program to allow students to train for their chosen sport and collegiate opportunities, learn new skills, or simply stay active beyond school requirements. She also coached both JV and Varsity Girls Lacrosse. Coach Wright has been a CSCS for almost three years and is passionate about training Soldiers and athletes in overall athleticism. She believes the H2F program can make a huge impact and is excited to work with a team that is filled with passion for people and performance. Her hobbies include hiking, sports, and spending time with family.
Taylor Givens, Strength and Conditioning Coach
Taylor Givens previously served in the U.S. Army as a 68F (Physical Therapy Specialist). She earned her B.S. in Exercise Science with a minor in Nutrition from University of South Florida in 2023. While completing her degree, she participated in internships at MacDill Air Force Base and at USF in Olympic Sports. She is currently a candidate for a Master of Science degree in Human Performance through the University of Florida. As a Certified Strength & Conditioning Specialist (CSCS) and a Tactical Strength & Conditioning Facilitator (TSAC-F), Givens brings a wealth of knowledge to her role as a strength and conditioning coach with the 165th IN BDE at Ft. Jackson. In her free time, Coach Givens enjoys doing Crossfit, hanging out with her daughter, and playing recreational soccer.
John Lee Barnett, Strength and Conditioning Coach
After completing his undergraduate degree in exercise science at the University of South Carolina, John Barnett earned his CSCS and interned with the Gamecocks Football Team. Coach B took his first step in the strength and conditioning world working as a SCC with H2F at Fort Drum, NY. Between the private sector and with his tactical experience, Coach B brings a combined 4.5 years of coaching to the table. Coach B takes a personal stake in seeing Soldiers improve mentally, physically, and spiritually, leading Soldiers to achieve their goals by providing attentive education, support, and direction. On a personal note, Coach B spends his spare time volunteering at a local high school and creating his graphic novel "Armor of God." Be on the lookout for it on a shelf near you soon.
Gerald Morehead, Strength and Conditioning Coach
After completing his undergraduate degree in health promotion/fitness programming at the University of Fort Hays State in Hays, Kansas, Gerald Morehead earned his CSCS and began a graduate assistantship with the strength and conditioning program at Fort Hays State University. As a graduate assistant in strength and conditioning, Coach Morehead had the opportunity to coach and program for 13 of the athletic teams for Fort Hays State including football, men’s basketball, baseball, and wrestling. During this time, Gerald also earned his master’s degree in exercise science. Coach Morehead strives to bring out the best in the individuals that he coaches by improving their physical, mental, and spiritual capacity. By providing exercise education, support, and motivation, Gerald’s objective is to assist Soldiers in becoming the best version of themselves and achieving their goals. Gerald is a small-town guy who enjoys being in nature and doing outdoor activities like hiking, hunting, and spending time with his dog, Brandy. Faith is the foundation for which Gerald lives his life. Gerald is a huge college football fan, specifically the Oklahoma Sooners, so he is always ready to talk football.
Sebastian Vargas, Strength and Conditioning Coach
Sebastian Vargas serves as a strength and conditioning coach with the 165 Inf. Bde., 1-34 Inf Bn.. He has a passion for developing physically capable, resilient, and mission-ready soldiers. His approach to coaching combines exercise science with practical training designed to prepare people for the physical demands of military service and special operations. He holds a master’s degree in Kinesiology with a concentration in Exercise Physiology, giving him a strong foundation in human performance, strength development, energy systems, conditioning, recovery, and exercise programming. He uses that knowledge to develop training strategies that improve strength, power, endurance, movement quality, and overall physical readiness. Sebastian takes a performance-focused approach to coaching while recognizing that every service member comes with different experience levels, physical demands, goals, and training needs. He believes in establishing strong movement fundamentals, progressively developing physical capacity, managing training load, and using evidence-based methods to help individuals perform at a high level while reducing musculoskeletal injury risk. As a coach, his goal is to help service members become stronger, more resilient, more capable, and better prepared for whatever the mission demands. Outside of coaching, he’s a husband, and father who values discipline, continued education, and maintaining an active lifestyle. He brings that same commitment to continuous improvement into his coaching philosophy: prepare with purpose, train with intention, and perform when it matters.
Alex Deal, Strength and Conditioning Coach
Alex Deal is a graduate of USC Aiken, with a degree in Exercise Sport Science where he was manager on the men's basketball team. Coming from Fort Stewart H2F back to Fort Jackson. Spent some time working with H2F at Fort Bragg 2nd Brigade. Prior to joining Fort Jackson later in 2024 working with the Task Force Surge. In his free time he likes participating in CrossFit workouts, riding his bike, mountain biking, also hiking/backpacking and doing whatever his wife wants to do. He has two dogs and enjoys spending time with them as well walking in the woods or throwing the ball.
Alan Clark, Strength and Conditioning Coach
Alan Clark grew up in Northern VA (Fairfax County) and graduated from Marshall University in Huntington, WV. After college he moved to Douglasville, GA where he has been living since 2008. He obtained his CSCS and has 2.5 years experience working with Division 1 athletes at Georgia Tech from Jan 23' - Aug 25'. He started off as an intern, then moved to a 1099 contractor position. He was in the Olympic Sports Department and worked in collaboration with the Director of Olympic Sports in designing and administering workouts throughout the season (off/pre/in/post). There, he mainly worked with Volleyball, Men's/Women's Tennis and some track individuals. On occasion he would assist Men's/Women's basketball and workout with professional alumni in town during their off-season. He oversaw the daily operations of the weight room when the Director and the other strength coaches traveled with their respective teams during the season. In the summer of 19', he interned at Greater Atlanta Christian (high school in Norcross, GA) with the strength staff assisting with designing and coaching workouts. He has worked with multiple sports both men’s and women’s. There, he gained experience using velocity-based training tools to measure speed/power output during lifting sessions. He has also worked with club sport athletes in the Atlanta area to help improve their performance in their respective sports. In addition to athletics, he has 13+ years of personal training experience along with 100hrs of physical therapy at Wellstar Hospital in Douglasville, Georgia. My 100hrs consists of 50hrs outpatient and 50hrs inpatient.
Sallie Wallace, Lead Athletic Trainer
Sallie Wallace, Lead Athletic Trainer, has been at Fort Jackson for 13 years, including working as the Athletic Trainer for the United States Drill Sergeant Academy. Prior to working with the Army, she was the Head Athletic Trainer at Chowan University in North Carolina. Sallie worked as the primary athletic trainer for the Hawks football team, men’s basketball team, baseball team, cross country team, cheerleading squad, and the men’s/women’s tennis teams. She served as the supervisor of the work study program, program director for the Athletic Training Department, as well as a professor in her time at Chowan University. Prior to working at Chowan University, she worked with two semi-pro football teams, was interim professor at George Mason University, the Head Athletic Trainer at the College of Saint Catherines in Minnesota, and Head Athletic Trainer at two high schools. Sallie is originally from Huntersville, North Carolina. She earned her Bachelor of Science degree in School Health Education with a double concentration in Athletic Training and Psychology from East Carolina University in Greenville, North Carolina. Sallie also has her Master of Health Education and Promotion from East Carolina University. When not at working, Sallie is usually at home taking care of her mom, playing with her pets, and working in her yard and garden. She also loves anything to do with nature, traveling to peaceful locations, and photography.
Candelaria Everett, Athletic Trainer
Candelaria Everett was born and raised in South Texas. She went to Texas A&M University Corpus Christi where she received both her undergraduate degree in Kinesiology and her graduate degree in Athletic Training. During her schooling she worked as a physical therapy technician at a high-volume clinic, she also had diverse clinical experience receiving experience in high school, collegiate, chiropractic care, and orthopedic surgery. After completing her degree, she worked in a pain management clinic and then moved on to Amazon where she worked as an Injury Prevention Specialist. She then moved to South Carolina in 2023 where she started working with the H2F program at Fort Jackson. In her spare time she likes to run, read, and spend time with her family.
Ashley Young, Athletic Trainer
Ashley Young grew up in Brownsburg, Indiana, and played basketball and rugby throughout her youth. She went to Manchester University in North Manchester, Indiana, where she earned a bachelor’s degree in Exercise Science with a minor in coaching. She then continued her education by getting a master’s degree in Athletic Training at Manchester University in Fort Wayne, Indiana. During the time while she was earning her master’s, she gained experience working at a D1 athletic program, a high school, a manual therapy clinic, and a tactical athlete clinic. After earning her master’s degree, she took a job working with the military for H2F at Fort Johnson, Louisiana, for a year and half. She then took the opportunity to transfer to Fort Jackson, South Carolina.
Laura Horsley, Athletic Trainer
Originally from Aiken, SC, Laura Horsley graduated from Lenoir-Rhyne College with her bachelor's degree in Athletic Training. Laura continued her education at California University of Pennsylvania, graduating with her master's degree in Exercise Science. Laura spent three years working with Division II athletes at Clayton State University before accepting a position as an Athletic Trainer at Fort Jackson in 2014. She spent 9 years at Fort Jackson before moving to Fort Campbell, where she worked as part of H2F and served as the Athletic Trainer for the Division Combative’s Team. In 2026, Laura rejoined the H2F program at Fort Jackson in her current position as an Athletic Trainer. When not at work, Laura can be found cheering on the South Carolina Gamecocks and Atlanta Braves.
Danielle Jones, Athletic Trainer
Originally From Council Bluffs, Iowa, Dani Jones graduated from the University of Northern Iowa with her bachelor’s degree in Athletic Training in 2009. She then completed an internship at Charleston Southern University, working with Division 1 athletes. Dani continued her education at the University of Alabama at Birmingham, receiving her Master of Education in Health Education in 2012, while also completing a graduate assistant position working with women’s soccer. She then moved to South Carolina in 2012, pursuing her career in athletic training working for Prisma Health at various local high schools, colleges, and the South Carolina Ballet Company. She now resides in Lexington, South Carolina, with her husband and son. In October 2022, Dani made a move to her current position as an Athletic Trainer at Fort Jackson.