Semper Strong

Semper Strong Semper Strong is a facility offering
High intensity interval training, speed & agility, sports specific & obstacle race training at it's best!!! No. Marine. Yes.

You may be strong, but are you Semper Strong? Semper Strong
TO BE STRONGER THAN YOU WERE YESTERDAY

FAQs

Is this gym CrossFit? What is the difference? We are not a CrossFit. We believe that there is a diversified approach to training and there is no one way ticket to getting to the best you. Our programming is based on the HIIT theory (High Intensity Interval Training) and they are tailored to

the individual’s needs, as opposed to what is ‘recommended’ for the gender and group. Do you do speed training? Speed and agility training are incorporated in all of the workouts. Our workouts consist of plyometric movements increasing your fast twitch muscles translating to an increase in speed. Plyometric workouts can boost your running speed; therefore, your performance has the potential to greatly improve. Even if you are involved in an activity that does not involve running, plyometric workouts can still help you to throw farther or punch harder. Plyometric training can help you achieve almost all athletic goals. Plyometric training can also teach the endurance athlete to produce muscular force more efficiently; this efficiency is realized through the body learning to produce more force for less energy expenditure. Thus this saving in energy cost can be recouped towards the end of any endurance type activity (i.e. the energy savings made at the beginning of the competition is now available in abundance for the end game). See more at: http://www.elite-athletic-performance.com/plyometric-training.html .PGATQ9r2.dpuf-

I hate running. Will I have to run? The goal is to take movements and exercises you hate and turn them into movements that you tolerate or even begin to like/love. We are yet to meet someone who enjoys a burpee. However, we still do them!

“Burpees increase aerobic capacity when performed at a high intensity, getting your heart rate up – fast! Strength – The burpee is a full body strength training exercise and the ultimate example of functional fitness. With every rep, you'll work your arms, chest, quads, glutes, hamstrings, and abs.”



Where does your equipment come from? Semper Strong does not look like any other facility and we utilize both the inside and outside of the space. The reason for this is attributed to Dean, owner of Black Widow Training Gear. We call him the mad scientist and mastermind of Semper Strong. Dean Schantz is an incredibly creative individual and a U.S. He customizes gym equipment for both gyms and homes. His expertise in the area of fitness led him to this incredible career of creating the most functional equipment, maximizing results for all of our athletes. We will be posting videos with individual pieces and their uses for all interested in purchasing your own equipment. See blackwidowtg.com for more information and stay tuned for the exciting videos to come. What can I expect during classes? Are all the classes the same? Classes are modified to fit all levels and goals within the class. Instructors know their class make-up prior to class based on the online sign-in. Classes are then made accordingly. Every instructor has their own style and it is recommended that you see all of them for the best results. Each class is different as you will NEVER do the same class twice even after years and years of attending! The purpose is to constantly shock the body to maximize results! I don’t have the time. We love this comment because….do you have the time to brush your teeth? Everyone has the time to commit to being the best you. In order to be the best you, in all that you do, you must feel the best and have the energy to complete the activities within your daily hectic life. We have classes at all times in order to assist you in meeting your goals, accommodating even the most intense schedules. We also tailor your program for your schedule. For example, when our adult athletes have gone on vacation or are having a tough week, we provide workouts for them to do with the resources they have at that time. No excuses. I’m injured. Now what? Some recent posts in regards to training through injury taken from our Semper Spotlights:

After getting some messages in regards to how to get Lori's results despite an ankle injury.... I realized that I should probably explain some of my own background for those that are hesitant or worried with their own limitations to ease your minds.... Having had physical athletic injuries myself many times (2 ACL surgeries, 1 shoulder reconstruction, 1 ankle surgery)....all from intense competition: basketball games, CrossFit regionals, and obstacle course racing.... the benefit that's come out of all my injuries and my inability to stick to just one type of fitness all my life was I learned a lot lol....I learned to work closely with my physical therapists and sports rehab doctors and to follow their direction. (champion performance with Ken and James is perfect as well as long island sports and rehab with Lois).........
I learned:
a. What to not do in training
b. What areas need to be strengthened in order to prevent injury
c. How to cope with an injury mentally
d. How to continue to exercise during an injury
E. How to still get good results during injury
f. What not to do to avoid certain physiques (I learned this the hard way - lol)
g. There is not one way to do things and you must be open-minded and dedicated to become a well-rounded athlete. Many areas of expertise is necessary in doing so ........so with my mistakes and my own journey, the HIIT program was created and all of the trainers at Semper Strong can assist everyone no matter what the level/necessary modification may be. - Katy Forman

Semper Strong Spotlight! Gina Williams, 10 years old
Diagnosis: Scoliosis
Result improvements from April 2015 to May 2016 after strength training with her mom, Jully Williams at Semper Strong! Jully decided to go against the doctors thoughts of possible need for a brace or surgery in the future and took matters into her own hands. She stayed consistent with training with her daughter at Semper Strong focusing on core improvement and overall strength for her daughter. This decision has paid off! Go Jully and Gina!!!!!!! April 2015, Initial Results:
Patient: GINA WILLIAMS DOB: Oct 21, 2005 SPINE ENTIRE ERECT PA AND LATERA
LClinical History 9-year-old female for scoliosis evaluation. Technique Erect PA and lateral view of the thoracolumbar spine. Comparison No prior images available for comparison. Findings There is mild S-shaped scoliosis with right thoracic curve and left thoracolumbar curve. No appreciable pelvic tilt. There are no additional abnormal curves in the sagittal plane. Vertebral bodies and disc spaces are maintained. No evidence of vertebral anomaly. Visualized bones are well mineralized. Visualized lungs are grossly clear without evidence of consolidation, large pleural effusion, or pulmonary vascular congestion. The cardiomediastinal silhouette is within normal limits. Breast shields are identified. There is a nonobstructive bowel gas pattern. Impression Mild S-shaped scoliosis with right thoracic and left thoracolumbar curves.. October 2015: Condition gets worse resulting in July and Gina starting at Semper Strong shortly after this appointment:
Result type: SPINE ENTIRE ERECT PA
Technique Frontal views of the entire spine. Comparison 04/13/2015. Findings Mild S-shaped curvature of the thoracolumbar spine all with right thoracic curve and left thoracolumbar curve. Mild increase in the lumbar component. No acute fractures are noted. The included lung fields are clear. Impression S-shaped curvature of the thoracolumbar spine with mild increase in the left lumbar component. May 2015: Gina’s condition shows improvement resulting from her consistent training with a focus on her core at Semper Strong!!!!!! Result type: Spine,entire/erect Pa Result date:
Clinical History Evaluate scoliosis. Findings In this patient with a complex but very mild curve, left upper thoracic, right lower thoracic, and left thoracolumbar, there is mild interval improvement in the curves. The osseous structures are otherwise unremarkable. Included lungs are clear. Nonobstructive bowel gas pattern. Impression Complex curves as well as right complex described above, slightly improved from the prior. We will keep you mentally in the game, despite an injury. Take care of yourself and work towards the best you.

06/03/2026

OUTWORK THE COMPETITION. 💪🔥

Talent might get you noticed, but hard work is what separates good athletes from great ones.

This summer, while others are sleeping in, skipping workouts, and taking shortcuts, we’re building speed, endurance, strength, and mental toughness.

Every sprint.
Every rep.
Every drop of sweat.

When the season starts, you’ll either be wishing you worked harder or you’ll be glad you did.

The choice is yours.

Train harder. Move faster. Finish stronger.

📍 Semper Strong
📞 516-523-6217

BuiltNotBorn TrainHard LongIslandAthletes

💪 The SUMMER GRIND STARTS HERE! ☀️ We’re kicking off July with an incredible Summer Special for all athletes and fitness...
06/01/2026

💪 The SUMMER GRIND STARTS HERE! ☀️ We’re kicking off July with an incredible Summer Special for all athletes and fitness enthusiasts.
Get full access to ANY Sports Performance classes for BOTH July and August for just $299.00 total! That’s two full months to train every layer of your performance and level up your game.
Our classes cover:
🏃‍♂️ Sports-Specific Training & College Prep
⏱ Track Workouts (Tempo, Endurance, Speed)
👣 Conditioning at the Turf (Agility, Footwork)
🧘‍♀️ Yoga (Mobility, Recovery)
This deal is too hot to last. Ready to get stronger? Sign up now! Link in bio.
📞 516.523.6217
📍 751-14 Koehler Ave, Ronkonkoma
RonkonkomaFitness TrainHard JulyAugustSpecial

This summer, don’t just stay active — get CONDITIONED. ⚡️🔥Our Semper Strong Conditioning classes are built for athletes ...
05/30/2026

This summer, don’t just stay active — get CONDITIONED. ⚡️🔥

Our Semper Strong Conditioning classes are built for athletes who want to:
🏃‍♂️ improve footwork
💨 increase speed & explosiveness
💪 build total-body strength
🧠 train mental toughness
🔥 outwork the competition before next season starts

These sessions combine athletic performance training, conditioning circuits, agility work, strength, and competitive energy that pushes you to another level.

No matter your sport — if you want to come back faster, stronger, and more prepared than everyone else… this is where it starts.

Summer athletes are built in the offseason. 👊

DM us to join or stop in and train with us this summer.
📍 Semper Strong LongIslandAthletes OffSeasonWork SpeedTraining StrengthAndConditioning

YOUR SUMMER STARTS HERE. ☀️💪Athletes. Adults. Beginners. Kids. College athletes. Parents.No matter your age or experienc...
05/29/2026

YOUR SUMMER STARTS HERE. ☀️💪

Athletes. Adults. Beginners. Kids. College athletes. Parents.
No matter your age or experience level — there’s a place for you this summer at Semper Strong.

Our summer schedule is built to help you:
🔥 get stronger
⚡️ move better
🏃 improve performance
🧠 build confidence
👊 stay consistent all summer long

From sports performance and conditioning classes to adult training, yoga, and beginner sessions — we’re creating an environment where hard work meets community.

Train with coaches who care.
Train with people who push you.
Train for results.

Let’s make this your strongest summer yet. 🚀

📍 Reserve your spot today
📞 Call or text: 516-523-6217

TrainHard SummerGrind AthleteTraining AdultFitness YouthSportsPerformance

🚨 BIG NEWS 🚨Semper Strong College Classes officially kick off June 7th! 🔥💪This summer we’re bringing the NEXT LEVEL of t...
05/28/2026

🚨 BIG NEWS 🚨
Semper Strong College Classes officially kick off June 7th! 🔥💪

This summer we’re bringing the NEXT LEVEL of training with:
⚡️ Track Workouts
🏈 Sports-Specific Performance Training
🏃 Turf Conditioning
🧘 Yoga & Mobility
🔥 College / Advanced HS Training

Train with coaches & athletes who lead by example and build:
✔️ Speed
✔️ Strength
✔️ Confidence
✔️ Discipline
✔️ Mental Toughness

📅 College Classes: Monday–Friday at 10AM
🏟 Conditioning at the Turf: Monday & Friday at 11:30AM
⏰ Additional early AM & PM class times available!

Whether you’re preparing for your college season, leveling up for varsity, or just chasing greatness this summer… this is where the work gets done.

📍751-14 Koehler Ave, Ronkonkoma
📲 516-523-6217
📧 [email protected]

🇺🇸 MURPH TOMORROW 🇺🇸Bring your friends, bring the energy, and come honor the heroes who gave everything. ❤️💙We’ll be tak...
05/25/2026

🇺🇸 MURPH TOMORROW 🇺🇸

Bring your friends, bring the energy, and come honor the heroes who gave everything. ❤️💙

We’ll be taking on the Murph Hero WOD:
🏃‍♂️ 1 Mile Run
💪 100 Pull-Ups
🔥 200 Push-Ups
🦵 300 Squats
🏃‍♀️ 1 Mile Run

This workout is more than fitness. It’s about pushing together, remembering the fallen, and earning every rep. 🇺🇸

After the workout stick around for FOOD & DRINKS🥤 and hang with the Semper Strong family.

📍Tomorrow at Semper Strong
👥 Bring a friend
💥 Let’s honor. Let’s work. Let’s celebrate.

CommunityStrong WorkoutWithPurpose FitnessFamily MemorialDayMurph

05/23/2026

Let’s go bro!!!!!! 💪🔥💪🔥

05/22/2026

From our littlest athletes to our middle school grinders… the future is looking STRONG 🔥

This video says it all — energy, hard work, confidence, and kids having fun while getting better every single day 💪☀️

Whether you’re 2 years old learning how to jump around cones, in elementary school building confidence, or in middle school getting ready to dominate your sport… EVERY athlete starts somewhere 👏

We love watching these athletes grow, compete, laugh, and work hard every week. The future of Semper Strong is BRIGHT 🔥

AthleteMindset YouKnowWhoYouAre

Join us for the Murph this Memorial Day!!!!! Bring your friends and honor Lt. Michael Murphy with us this Monday! Let’s ...
05/22/2026

Join us for the Murph this Memorial Day!!!!! Bring your friends and honor Lt. Michael Murphy with us this Monday! Let’s kick off the season right 💪🔥💙❤️ (bring your own vest)

05/21/2026

To all our high school athletes — we see the work, the dedication, the early mornings, late nights, wins, losses, and everything in between. We are SO proud of everything you accomplished this school sports season 💪🔥

But now… summer is coming ☀️
And that means it’s time to LEVEL UP.

This is where athletes are made.
This is where speed gets faster, strength gets stronger, and confidence gets built.

We can’t wait to see all of you back in the gym this summer ready to WORK. Let’s make this offseason different. Let’s get after it. You know who you are 😉🔥

OffseasonWork YouKnowWhoYouAre

Address

751-14 Koehler Avenue
Ronkonkoma, NY
11779

Opening Hours

Monday 5am - 11pm
Tuesday 5am - 11pm
Wednesday 5am - 11pm
Thursday 5am - 11pm
Friday 5am - 10pm
Saturday 7am - 7pm
Sunday 7am - 8pm

Telephone

+15165236217

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