Keller Training Systems

Keller Training Systems Strength & Conditioning - Speed & Strength Specialist - Linebacker Specialist - Pro & Youth Athlete Development - Adult Fitness - Combine Training

02/17/2026

I love my profession‼️

I love connecting w/ other like minded individuals in this profession‼️

I’ve built so many lifelong relationships w/ my career and I love getting to do what I love on a daily basis 🫶🏻

Develop to help athletes reach potential‼️ Not to just claim them as YOURS 🤦🏻‍♂️
02/17/2026

Develop to help athletes reach potential‼️ Not to just claim them as YOURS 🤦🏻‍♂️

02/16/2026

🔥1. Builds Explosive Acceleration

Sled resistance forces athletes to apply more force into the ground, which is key for:
• First step quickness
• 0–20 yard acceleration
• Football, track, and field sports

This directly improves the “drive phase” of sprinting.

💪 2. Increases Horizontal Force Production

Speed isn’t just about moving fast — it’s about pushing the ground backward efficiently.
Sled work teaches:
• Better shin angles
• Stronger forward lean
• More powerful hip extension

That translates to faster real sprints.

🧠 3. Reinforces Proper Sprint Mechanics

Unlike overspeed tools, sleds naturally encourage:
• Aggressive arm drive
• Full triple extension (hips, knees, ankles)
• Better posture under load

Great for coaching younger athletes.

🦵 4. Builds Strength That Transfers to Speed

It’s like combining:
• Sprinting
• Lower-body strength training

You develop:
• Glutes
• Hamstrings
• Calves
• Core stiffness

Without heavy spinal loading like squats.

🛡️ 5. Lower Injury Risk Than Max Sprinting

Because the sled slows athletes slightly:
• Less hamstring strain risk
• Safer high-intensity speed work
• Easier to manage volume

That’s why many pro programs use sleds year-round.

⚡ 6. Sport-Specific Conditioning

Sled sprints also build:
• Football drive power
• Lineman explosion
• Game-like fatigue resistance

Bonus: Load Changes the Goal
• Light sled (10–20% bodyweight): Speed & mechanics
• Moderate (20–40%): Acceleration power
• Heavy pushes: Pure strength & work capacity

Happy 7th Birthday to my first born son‼️My life changed dramatically for the BETTER the day I held you in my arms‼️ You...
02/16/2026

Happy 7th Birthday to my first born son‼️

My life changed dramatically for the BETTER the day I held you in my arms‼️ You are one of the BIGGEST blessings that I’ve ever had and I’m thankful to call you my SON 🫶🏻

I love you Korbyn Nash Keller 🧸

I know plenty of kids that test well but aren’t good at football 🤷🏻‍♂️Don’t get so caught up on these camps and combines...
02/16/2026

I know plenty of kids that test well but aren’t good at football 🤷🏻‍♂️

Don’t get so caught up on these camps and combines that you forget you still have to pad up and be productive‼️

02/15/2026

A little food for thought to the Men out here 🧠

I challenge you all to be BRAVE when following Christ so that your vulnerability will allow you to expose those flaws that you naturally try to hide in order to become a better HUMAN 🙏🏼

02/15/2026

Depth Jumps 🔥

Why⁉️

Athletes do depth jumps because they’re one of the most powerful exercises for building explosive power, speed, and reactive strength 📈

Depth jumps train the stretch-shortening cycle (SSC) — the ability to rapidly absorb force and instantly reapply it.

Think:
Landing → absorbing force → exploding back up

That’s exactly what happens in:
• Cutting
• Jumping for a ball
• First step acceleration
• Pass rush reactions

They increase rate of force development (RFD) — how fast an athlete can produce force.

This helps with:
• Vertical jump
• Sprint starts
• Blocking and tackling power

🗣️Some people support you because it’s YOU‼️Some people won’t support you because it’s YOU‼️Learn who is WHO 👀
02/14/2026

🗣️

Some people support you because it’s YOU‼️

Some people won’t support you because it’s YOU‼️

Learn who is WHO 👀

How you do it is more important than what you do 📈
02/14/2026

How you do it is more important than what you do 📈

Congrats to all of my KTS Athletes on their Commitments & their New Schools 🐺📈Who’s NEXT⁉️
02/14/2026

Congrats to all of my KTS Athletes on their Commitments & their New Schools 🐺📈

Who’s NEXT⁉️

On the contrary, it actually maximizes your SUCCESS📈
02/13/2026

On the contrary, it actually maximizes your SUCCESS📈

Address

925 Derby Avenue
Apopka, FL
32703

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