Can the athlete produce and absorb force?
Strength, single-leg control, jumping, landing, and tissue tolerance create the base for faster work.
Book assessmentACL Performance Lab · Colorado Springs
Cleared is a milestone.
Ready is the goal.
The COR1 ACL Performance Lab provides specialized ACL rehabilitation, objective return-to-sport testing, and performance training for athletes in Colorado Springs—rebuilding strength, speed, confidence, and the ability to handle competition.
One connected pathwayFrom late-stage rehabilitation to practice and competition.
Beyond traditional rehab
From the clinic
back to competition.
Finishing physical therapy does not automatically mean an athlete is prepared to sprint, cut, decelerate, react, tolerate fatigue, and compete at full speed.
COR1 bridges that gap with progressive field and weight-room training supported by objective testing, medical guidance, and the athlete’s response—not a timeline alone.
The late-stage problem
Readiness has layers.
Return to sport is not one test or one day. The athlete must regain capacity, express it at speed, tolerate repeated exposure, and trust the knee in unpredictable situations.
Can those qualities show up at speed?
Sprinting, braking, cutting, reactive tasks, and conditioning expose the athlete to real physical demands.
Can the athlete repeat it in context?
Practice progression, fatigue, decision-making, confidence, and position-specific workload complete the bridge.
The COR1 pathway
A return built in four phases.
Assess
Review surgical and rehabilitation history, current medical guidance, strength, power, running exposure, movement, workload, and confidence.
Rebuild
Develop quadriceps and hamstring strength, single-leg capacity, jumping, landing, and the physical qualities still below sport demand.
Reintroduce
Progress acceleration, upright sprinting, deceleration, planned cutting, reactive movement, and repeated efforts.
Return
Prepare for modified practice, full practice, and competition using objective criteria, workload response, and athlete readiness.
Return-to-sport testing
Confidence backed by context.
COR1 looks beyond one hop score. Measures are interpreted alongside training response, sport demands, workload, confidence, and medical guidance.
- 01Quadriceps and hamstring strength
- 02Single-leg jump and landing capacity
- 03Reactive strength and plyometric ability
- 04Acceleration and high-speed running exposure
- 05Deceleration and change of direction
- 06Psychological readiness and confidence
Criteria—not calendar alone
What earns the next progression?
Physical capacity
Relevant strength, power, control, and tissue tolerance support the next level of speed and volume.
Movement at speed
The athlete can accelerate, brake, land, and redirect with increasing intensity and appropriate strategy.
Workload tolerance
The knee and athlete respond well as running, cutting, repeat efforts, and practice-like volume increase.
Psychological readiness
Confidence, trust, hesitation, and willingness to engage are discussed—not treated as invisible.
Practice response
Modified and full practice exposures provide information that a clinic or isolated test cannot reproduce.
Medical coordination
Progression stays consistent with the athlete’s surgical, medical, and rehabilitation guidance.
The final bridge
Return to practice before return to performance.
The exact sequence varies, but the athlete should earn exposure to greater volume, speed, contact, fatigue, and unpredictability.
- 01
Individual sport work
Controlled running, ball or skill work, and position-specific patterns.
- 02
Modified team training
Selected drills, limited volume, or restricted contact and reactive demand.
- 03
Full practice
Progress toward unrestricted training while monitoring response and confidence.
- 04
Competition exposure
Return with a planned progression instead of expecting immediate full performance.
For parents and athletes
Know what comes next.
Who is this for?
Athletes in later-stage ACL rehabilitation who need advanced strength, sprinting, cutting, conditioning, and sport preparation before unrestricted return.
Does this replace PT?
It may complement ongoing care or become the next step after traditional rehabilitation, depending on current needs and the medical plan.
What will we receive?
A baseline profile, individualized priorities, progressive training, repeated measures, and clear discussion of next steps.
What sports?
Soccer, basketball, football, volleyball, softball, lacrosse, and other sports that demand sprinting, braking, cutting, jumping, or contact.
Frequently asked questions
Questions parents ask before starting.
01When is an athlete ready to start the COR1 ACL pathway?+
Readiness depends on healing, medical guidance, current rehabilitation, strength, symptoms, and the demands being introduced. An initial conversation and assessment help determine whether COR1 should complement current care or follow it.
02Does COR1 clear athletes for sport?+
Medical clearance comes from the appropriate medical provider. COR1 provides performance training and objective information that can help the athlete and care team understand readiness for increasing sport demands.
03Is symmetry enough to return?+
Side-to-side comparison is useful but incomplete. Both limbs may be below the athlete’s sport demands, and an athlete must also demonstrate speed exposure, workload tolerance, movement skill, and confidence.
04How often is the athlete reassessed?+
Measures are repeated when they can meaningfully influence the next phase. The schedule depends on the starting profile, program length, and qualities being trained—not an arbitrary weekly test.
05Can COR1 communicate with our PT, surgeon, or athletic trainer?+
Yes, with appropriate authorization. Coordinated communication helps keep progressions aligned and gives the care team useful performance context.
Start with COR1
Don’t stop at cleared.
Give your athlete a plan to return stronger, faster, and more prepared for the moments their sport demands.