Sgt. 1st Class Elizabeth Calderon performs the ACFT’s ball toss

Sgt. 1st Class Elizabeth Calderon, an Army Master Fitness Training Instructor, performs the ACFT’s ball toss during an Army Physical Fitness School session Sept. 23 at Fort Jackson, S.C. She and her fellow cadre qualify Soldiers from across the Army to serve as master fitness trainers at their home units.

FORT JACKSON, S.C. – The blistering temperatures brought on by the South Carolina sun didn’t slow down Sgt. 1st Class Elizabeth Calderon’s workout even a little.

From her perspective as a Master Fitness Training instructor, flipping tires and carrying ammo boxes in the heat is “just another day at the office.”

The former drill sergeant – no stranger to Fort Jackson’s long summers – was wearing a weighted tactical rucksack on her back as she demonstrated modified squats outside of the Army Physical Fitness School Sept. 24.

The purpose of her workout was to show proper ways Soldiers can better prepare for the Army Combat Fitness Test even with limited resources. Calderon became increasingly fatigued as the day wore on, yet pushed through and never compromised her form.

“She’s the heart of our program,” one of her colleagues was overheard saying as she continued demonstrating exercises.

Calderon, a former competitive bodybuilder and fitness guru, finished the squat the right way – the Army way – then wiped sweat from her brow and graded her performance with a proud smile.

During her time as a drill sergeant, Calderon said she spent countless hours in the gym, and rep-by-rep, sculpted her physique. For her, bodybuilding was an outlet to the highs and lows she faced while “on the trail.”

“When you can physically move and train your body to accomplish things you never thought you could before,” she said, “you find yourself.”

Although strength conditioning is still essential, she relies on functional workouts these days. There’s more pulling, pushing, lifting and other things that hone muscle groups used every day when climbing stairs, opening doors, carrying objects, etc. Functional workouts are a big part of her instructional program at the school. The staff touts them as well-rounded, cardio-intensive and designed to help Soldiers balance strength with endurance. After all, big muscles don’t necessarily mean physical fitness, at least according to Army standards.

Calderon has been assigned to the fitness school for 10 months. She is part of a team that educates and certifies selected Soldiers from units around the Army with everything related to the Army’s Physical Readiness Training program, including how to properly grade the ACFT.

Although the instructors’ job requirements stretch far beyond the ACFT – more accurately described as helping Soldiers develop physical training concepts, tactics, techniques, training programs and other aspects related to readiness – lately, all eyes seem to focus on the upcoming fitness test, she said, which entered its second phase of implementation Oct. 1.

During the second phase, all Soldiers will take the ACFT as a diagnostic and all Initial Military Training officers and enlisted will take the six-event fitness test as a graduation requirement.

The Army Physical Fitness School’s classes aren’t just taught outside or in the gym. Many take place inside traditional classrooms. There, instructors discuss topics such as injury prevention and nutrition, among many others.

“It all goes hand-in-hand,” Calderon said, referring to Holistic Health and Fitness, or H2F. “If your mind isn’t in it, your heart isn’t either, and you’re probably not going to have the motivation to do what you’ve got to do in the gym.

“I think you need to be ‘centered’ in order to perform well,” she added, saying all aspects of H2F are vital to success.

Some Soldiers, according to Calderon, are still uneasy with the ACFT’s test requirements, including events such as the leg-tuck. That's where, in her words, practice makes perfect.

“I think people fear what they don't know,” she said, regarding the new fitness test. “Once they’re out there doing the movements, they’ll realize they can do it, too. I’m here to teach Soldiers how to design a (fitness program) they can bring back to their unit.”

Program design skills learned at the school “will carry over into training for the ACFT,” she said. When certified Soldiers return to their units, not only are they qualified to grade the ACFT, but they can supervise it and set up the field for testing.

“People may not realize it, but many of the ACFT exercises target muscles they work out every day,” she said. “My job is to help teach Soldiers the techniques used to perform those exercises correctly, and with proper form so they don’t get injured. Soldiers have been moving this way all their lives, they just need to perfect the movements and build a foundation.”

Whether it’s in the office or at the grocery store, “our muscles are designed for functionality,” she said. “We do dead-lifts when we pick up our groceries. Bringing them to the car is like the farmer’s carry.”

By utilizing a certified MFT, Soldiers will be one step closer to optimal physical readiness. However, according to Calderon, they still need to believe in themselves.

“If a Soldier is in the mindset they won’t pass the ACFT, they won’t,” she said. “It’s just like if you start your day believing you’ll have a bad one – then you will.”

In addition to her students, who occasionally reach out from time to time, Calderon has developed an army of followers on social media. At last count, more than 16,000 where regularly visiting her “fatgurlliz” Instagram page, which is set up as a private account, meaning people aren’t simply stumbling in and joining in the discussion. She uses her social media presence to empower others by promoting physical fitness and body positivity.

“My advice is if you have fun with (the ACFT), then you’re going to perform well – but you have to train the right way,” she said. “Train properly, and once you develop the endurance you need, you’re going to be okay.”