A coach may say, “We need more speed,” but speed is not just a feeling.
When coaches evaluate athletes, they often look for measurable proof: How quickly can an athlete get moving? Can they stop, cut, and re-accelerate under control? Can they produce enough explosive power to win the first few steps, elevate, or create separation?
Those answers show up in a few important numbers.
At Athletic Republic Knoxville, the Acceleration Program uses science-based training protocols, specialized equipment, video feedback, and certified coaching to help athletes improve the qualities behind those numbers. Athletes are tested at the beginning and end of a training program so progress is not based only on appearance or confidence: it is supported by measurable results.
Here are three numbers coaches actually watch.
1. The 10-Yard Split: What Happens After the Start
The first 10 yards tell a coach a lot.
Whether an athlete is breaking from a football stance, chasing down a loose soccer ball, reacting to a play in basketball, or trying to create space in baseball or softball, the ability to accelerate quickly matters. The 10-yard split focuses on those first steps: not top-end speed after an athlete has already been running for a while.
That distinction is important.
An athlete can look fast once they get moving but still lose ground at the start because of:
- A slow or hesitant first step
- Poor body position
- Limited knee drive
- Inefficient arm action
- Stride mechanics that waste energy
- Difficulty applying force into the ground
The Acceleration Program addresses those details through progressive sprint training and immediate coaching feedback. Athletic Republic Knoxville’s specialized high-speed treadmills give athletes a controlled environment to work on running mechanics, while trainers coach key elements such as stride length, stride frequency, hip position, knee drive, and arm swing.
The goal is not simply to tell an athlete to “run harder.” It is to help the athlete move more efficiently and produce force in the right direction.
Video feedback can make that process easier to understand. An athlete may feel like they are driving their knees or keeping their posture tall, but seeing the movement on screen gives them something concrete to correct. Parents can also see why technical details matter: small changes in positioning can influence how quickly an athlete gets into the play.
Over time, improved first-step acceleration can help an athlete:
- Arrive first to a ball or space
- Close distance on an opponent
- Get into position sooner
- Create separation off the line
- Start a route, cut, or defensive movement with confidence
A faster 10-yard split does not automatically guarantee playing time. But it gives coaches a more reliable physical tool to work with: and athletes who consistently show that tool become easier to trust in game situations.
2. The 5-10-5 Shuttle: Can You Brake, Change Direction, and Go Again?
The 5-10-5 pro-agility shuttle is more than a race between cones.
An athlete starts in the middle, moves five yards in one direction, changes direction for 10 yards, then finishes by moving five yards back through the middle. The entire drill is short, but it demands several qualities at once:
- Accelerating from a standstill
- Decelerating under control
- Planting and changing direction
- Re-accelerating after the turn
- Performing those actions on both sides
That combination is why coaches pay attention to it. Most sports are not played in a straight line. Athletes stop, react, cut, recover, and move again: often while processing teammates, opponents, and the ball at the same time.
A strong 5-10-5 performance depends on more than quick feet. It requires an athlete to control their center of gravity, load the hips, place the foot effectively, and maintain balance through the transition.
In the Acceleration Program, certified trainers use agility drills, plyometrics, strength work, and marked training surfaces to develop those skills progressively. Athletes learn how to lower their center of gravity before a cut, control the braking phase, and push into the next direction instead of standing up or taking extra steps.
The objective is not to make every drill feel chaotic. It is to build repeatable movement patterns that hold up when the athlete is tired or under pressure.
Coaches may also compare an athlete’s performance when starting to the left versus starting to the right. Differences between sides can reveal areas to improve, whether that means lateral strength, stability, body control, or confidence changing direction.
Improving the 5-10-5 can translate to:
- Sharper defensive slides
- Faster transitions
- Better pursuit angles
- Quicker cuts on routes
- More efficient movement in tight spaces
- Improved ability to recover after a mistake
For parents, this is one reason structured training can be more useful than simply having an athlete “run drills.” The coach is not only watching whether the athlete completes the drill. The coach is teaching the athlete how to move better through every phase of it.
3. The Jump Number: Vertical or Broad Jump Explosiveness
The third category is explosive power, often represented by a vertical jump or broad jump measurement.
These tests answer a simple question: How much force can an athlete produce, and how quickly can they produce it?
A vertical jump reflects upward power. It can be relevant to jumping for a rebound, contesting a ball, blocking at the net, elevating for a catch, or creating force through the lower body.
A broad jump reflects horizontal power. It connects more closely to pushing forward and projecting the body into the first few steps of a sprint.
Both measurements provide useful information, especially when considered alongside acceleration and shuttle performance. An athlete who improves lower-body power may have a stronger foundation for sprint starts, cuts, jumps, and physical actions in competition.
Athletic Republic Knoxville develops explosiveness through carefully selected plyometrics, strength work, and movement training. The purpose is not to add random jumping to a workout. Training is adjusted based on the athlete’s age, experience, goals, movement quality, and current ability.
That matters because explosive training has to be coached.
An athlete needs to learn how to:
- Load and land with control
- Produce force quickly
- Maintain balance
- Coordinate the hips, knees, and ankles
- Absorb force safely
- Repeat powerful movements without losing technique
The Acceleration Program also considers symmetry and individual areas for improvement. Two athletes may have the same broad jump distance but arrive there with different movement strategies. A certified trainer can help identify whether the athlete needs more strength, better coordination, improved stability, or greater confidence in the movement.
The result is a more complete performance profile: not just one impressive number.
Numbers Are Useful. The Game Is the Point.
Athletes do not compete inside a testing station. They compete in unpredictable, fast-moving situations.
That is why the purpose of measuring the 10-yard split, 5-10-5 shuttle, vertical jump, or broad jump is not to turn training into a scoreboard. The purpose is to identify qualities that can be improved and then connect those improvements to sport.
A better number should support better movement:
- Faster acceleration can help an athlete win the first few steps.
- Better change-of-direction ability can help an athlete stay in front of a play.
- Greater explosiveness can help an athlete jump, push, separate, and react.
- Improved mechanics can help an athlete repeat those actions with less wasted effort.
That is where trust comes in.
Coaches trust athletes who consistently get into position, respond quickly, execute their role, and continue competing when the game becomes demanding. Athletic development is not only about earning a faster test result. It is about building physical tools and movement confidence that an athlete can use when the outcome matters.
For some athletes, that may mean getting on the field more often. For others, it may mean staying in the rotation, earning more opportunities, or competing for a starting spot. The pathway is different for every athlete, but measurable progress gives athletes and coaches a clearer direction.
Why the Training Environment Matters
The Acceleration Program takes place inside Athletic Republic Knoxville’s 18,000-square-foot facility, with room for athletes to work on speed, power, agility, strength, stability, and sport-specific movement.
The facility includes specialized high-speed treadmills, marked speed and agility platforms, plyometric equipment, indoor turf, mirrors, and video feedback technology. That combination allows trainers to coach both how an athlete moves and how efficiently that athlete produces performance.
Just as important, training is delivered in a small-group, trainer-led format. Athletes receive coaching throughout the session, and workouts can be adapted to their age, sport, experience, and goals.
That personalized approach is valuable for parents who want their athlete challenged without being treated like a number. It is also valuable for athletes who want to understand what they are doing, why they are doing it, and how the work connects to competition.
Ready to See What Your Numbers Can Do?
The first step is establishing where the athlete is now. From there, the coaches at Athletic Republic Knoxville can help build a progressive plan around acceleration, change of direction, explosiveness, and overall athletic development.
You do not need to arrive with a perfect 10-yard split or an impressive jump number. You only need to be ready to learn, work, and improve.
Schedule a free trial workout or learn more about Student Athlete Training at Athletic Republic Knoxville. A better number is useful: but the real goal is becoming the athlete coaches can count on when the game is on the line.
