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City of Kendleton Trampoline Park Injury Attorney Attorney911 of Houston TX Ralph Manginello 25 Years Defeating Sky Zone Urban Air and DEFY Waivers with Former Recreation Defense Attorney Lupe Peña Insider Knowledge of ASTM F2970 EN ISO 23659 and AAP 2019 Standards Holding Palladium Equity and Seidler Equity Accountable for Pediatric TBI Spinal Cord SCIWORA and Salter-Harris Growth Plate Injuries with Case Anchors like Cosmic Jump 11.485M Harris County Verdict and Damion Collins 15.6M Urban Air Arbitration Utilizing Delfingen Bilingual Tactics and Texas Family Code 153.073 Signer Authority Defeats for City of Kendleton Families Suffering from Foam Pit Paralysis Sky Rider Strangulation Patterns and Backyard Manufacturer Defects with No Fee Unless We Win Hablamos Español 1-888-ATTY-911

April 25, 2026 13 min read
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One bounce. One bad landing. One broken neck. That is all it takes for a Saturday afternoon at a trampoline park to turn into a lifetime of medical debt and physical therapy. If your child was hurt at an indoor jump center near Kendleton, you are likely sitting in a hospital room in Fort Bend County right now, replaying the moment in your head. You signed the waiver at the kiosk because the line was long, and the staff pressured you to finish so the kids could get their wristbands. Now, the park’s insurance adjuster is calling you, acting friendly, and telling you that the piece of paper you signed ended your case before it began.

They are wrong. In Kendleton and across the State of Texas, a signed waiver is not the absolute shield corporate conglomerates want you to believe it is. What happened to your child wasn’t a “freak accident”—it was the predictable result of business decisions made by parent companies like Sky Zone, Inc. or Unleashed Brands. We have spent over 25 years holding Fortune 500 corporations accountable, and we know exactly how to pierce the corporate layers designed to protect their margins at the expense of your child’s safety.

At Attorney911, led by our founder Ralph Manginello, we don’t just “handle” personal injury cases. We build catastrophic-injury litigation architectures. Ralph Manginello brings more than two decades of trial experience, including admissions to the United States District Court for the Southern District of Texas. Our team is uniquely equipped to handle the complexities of trampoline litigation because one of our attorneys, Lupe Peña, used to sit on the other side of the table—defending insurance companies and recreational facilities. He knows their script because he helped write it. Today, he uses that insider knowledge to deconstruct their defenses for our clients in Kendleton.

If your family’s primary language is Spanish, you can speak directly with Lupe Peña without an interpreter. Hablamos Español. Llame al 1-888-ATTY-911. In a market like Kendleton and the greater Houston-Sugar Land metro, insurance adjusters often try to use language barriers to push for quick, pennies-on-the-dollar settlements. We close that gap on day one.

The Reality of Trampoline Park Injuries Near Kendleton

Families in Kendleton often travel to nearby Sugar Land, Pearland, or Katy to visit major chains like Urban Air Adventure Park, Altitude Trampoline Park, or Sky Zone. On any given weekend, hundreds of children from Fort Bend County are airborne at these facilities. While the marketing promise is “safe family fun,” the medical data tells a much darker story.

According to a landmark 2024 study published in the journal Pediatrics by Teague et al., trampoline park injury rates are significantly higher than the industry let on for years. The data shows an overall injury rate of 1.14 per 1,000 jumper-hours, but for certain attractions, the risk spikes. Foam pits and inflatable bags carry an injury rate of 1.91 per 1,000 hours, while high-performance jumping zones soar to 2.11 per 1,000. Nationally, up to 1.6% of all pediatric emergency department trauma visits are now trampoline-related, according to more recent findings from the American Journal of Roentgenology (AJR 2024).

In 2013, the trampoline park industry actually drafted its own voluntary safety floor, known as ASTM F2970. They didn’t do this because they wanted regulation; they did it because the volume of broken bones and spinal injuries had become impossible to ignore. When a park serving Kendleton families violates its own industry standard—by understaffing the court or failing to separate jumpers by size—that isn’t just an “accident.” It is a breach of the duty of care.

Why Your Case Is Legally Viable Despite the Waiver

The most common internal myth in Kendleton is that a signed participation agreement prevents you from filing a lawsuit. We are here to tell you that in Texas, the waiver is often just noise. Our firm uses a multi-vector attack strategy to dismantle these agreements:

1. The Gross Negligence Carve-Out

No court in Texas enforces a waiver to cover “gross negligence.” Under the Moriel standard established by the Texas Supreme Court, gross negligence involves an extreme degree of risk that the operator was subjectively aware of and consciously indifferent to. In Harris County, a jury awarded $11.485 million against the operator of Cosmic Jump after a 16-year-old fell through a torn trampoline slide onto bare concrete. The jury found gross negligence despite a signed waiver. If the park near Kendleton knew about a defect or ignored ASTM F2970 safety ratios, your waiver might be legally worthless to them.

2. The Minor-Indemnity Rule

Texas law is protective of children. In the seminal case of Munoz v. II Jaz Inc., Texas courts held that a parent cannot bind a minor child to a pre-injury waiver of the child’s own personal injury claim. While a parent’s own claims might be affected, the child’s legal right to compensation for medical bills, future care, and pain and suffering usually remains intact.

3. The Conspicuousness and Express Negligence Doctrines

Under the Dresser v. Page Petroleum doctrine, a release must be “conspicuous.” If the legal language was buried in a 20-screen iPad click-through or used font so small a reasonable person wouldn’t notice it, the waiver fails. Furthermore, the waiver must expressly name “negligence” as a released claim. If the document you signed at a park near Kendleton failed these “Fair Notice” tests, we will move to strike the defense entirely.

4. The Delfingen Spanish-Formation Challenge

If your family speaks primarily Spanish and the park presented an English-only kiosk waiver without an explanation or translation, the agreement may fail on formation grounds. The Delfingen US-Texas v. Valenzuela case provides a powerful precedent for families in Kendleton to challenge “contracts” they were never given a real chance to understand.

Accident Mechanisms: How the Physics of Impact Fails

Trampoline injuries are governed by physics that the human body—especially a child’s body—was never meant to handle in a recreational setting.

The Double-Bounce Multiplier

This is the most common cause of catastrophic leg fractures. When a larger jumper (like an adult or a teenager) lands on the trampoline bed at the exact same moment a smaller child is pushing off, the energy transfer is massive. Kinetic energy can multiply the child’s launch force by up to 4x. The child isn’t jumping anymore; they are being launched like a projectile. ASTM F2970 requires parks to separate jumpers by age and weight for this exact reason. When an attendant at a Sugar Land or Pearland park fails to enforce these zones, they are essentially allowing a child to be hit with the force of a hammer.

The Foam Pit Fallacy

Foam pits look soft, but they frequently hide a dangerous reality. Over time, the open-cell foam cubes compact and lose their ability to decelerate a falling body. If the pit depth is below the ASTM requirement, a jumper can strike the hard floor or unpadded frame beneath the cubes. This axial loading is the primary mechanism for cervical spine injuries and paralysis. We saw this in the Seitz case in Minnesota ($3M settlement) and the Thomasson fatality in Phoenix.

Sky Rider and Harness Failures

Many modern “adventure parks” near Kendleton have added Sky Rider ziplines and climbing walls. These bring secondary risks like harness strangulation or falls from 30 feet onto concrete. In the Sugar Land Urban Air case involving the Lakhani family, a 14-year-old fell 30 feet because an attendant reportedly failed to attach the fall-protection equipment. When human error by a minimum-wage teenager results in a fall to concrete, the park is responsible for that training failure.

Extended-Jumping Rhabdomyolysis

If your child jumped for 90 minutes straight in a hot indoor facility and later developed dark, cola-colored urine and severe muscle pain, they may be suffering from rhabdomyolysis. This is a medical emergency where muscle tissue breaks down and poisons the kidneys. Our firm is currently litigating a $10 million lawsuit against the University of Houston involving this exact medical pathology. We know the experts, we know the science of rhabdo, and we know how to hold institutional defendants accountable for this preventable condition.

Catastrophic Pediatric Injuries and Long-Term Damages

Children’s bones are biomechanically distinct from adult bones. They are more pliable, and they contain growth plates (physes) that are weaker than the surrounding ligaments.

  • Salter-Harris Fractures: A fracture through the growth plate at age eight isn’t just “a broken leg.” It is a disruption of the bone’s growth center. If not monitored for the next decade, it can lead to permanent limb-length discrepancy or crooked growth.
  • SCIWORA: Spinal Cord Injury Without Radiographic Abnormality is a pediatric phenomenon where the spinal cord is permanently damaged even though the bones look “normal” on a CT scan. This often happens in head-first foam pit landings.
  • TBI and Cognitive Regression: A concussion in a developing brain can lead to academic decline and behavioral shifts that don’t manifest until six months after the injury.

We build a Pediatric Life-Care Plan for our clients that doesn’t just look at today’s ER bill. We calculate the next 70 years of your child’s needs—corrective surgeries, physical therapy, educational aids, and specialized medical monitoring. Most firms in Kendleton will settle for the surface-level bills. We look at the lifetime cost.

The 48-Hour Evidence Preservation Protocol

The clock is running against your family right now. Trampoline park surveillance DVR systems are typically engineered to overwrite footage every 7 to 30 days. The incident report you filled out at the park is sitting on a computer system where metadata can show if it was “revised” or sanitized by management days later.

By Day 10, the video of your child’s injury could be gone forever. By Day 30, the attendant who saw it happen may have quit or transferred to another location. Our firm sends a comprehensive spoliation letter via certified mail within 24 hours of being retained. We demand the preservation of:

  • Multi-angle surveillance video.
  • All versions of the incident report and internal Slack/email communications.
  • Attendant training records and shift logs.
  • Waiver kiosk database audit trails to prove exactly what was (or wasn’t) signed.

If the park near Kendleton “accidentally” loses the video after we’ve sent our demand, we move for an adverse-inference instruction. In a Georgia case (Mathew Knight), a jury awarded $3.5 million after the defense surveillance video “glitched” on four cameras simultaneously at the moment of injury. We don’t accept “it’s not available” as an answer.

Why Kendleton Families Choose Attorney911

We are built for the complex battle against national franchisors and the private equity groups that back them. Sky Zone, Inc. is backed by Palladium Equity Partners; Urban Air’s parent, Unleashed Brands, is backed by Seidler Equity. They hire the highest-paid corporate defense firms to protect their sales—which systemwide for Sky Zone exceeded $642 million in 2024.

We bring 25+ years of trial experience to the table. As client Chad Harris said, “You are NOT just some client… You are FAMILY to them.” We treat your child like our own, and we treat the defendant like the deep-pocketed conglomerate they are.

We operate on a contingency fee basis. You pay nothing upfront, and we advance every expense—from the biomechanical engineer who reconstructs the jump to the pediatric orthopedic consultant who analyzes the growth plate. If we don’t win, you don’t owe us a dime.

Frequently Asked Questions for Kendleton Parents

Can I sue if I signed an electronic waiver at the kiosk?

Yes. Electronic signings must comply with the federal E-SIGN Act and Texas UETA rules. If the system glitched, or if the disclosure was buried, the waiver is highly vulnerable. Furthermore, Texas courts often strike waivers for gross negligence and minor-child claims regardless of the signature.

How much is my child’s case worth?

Every case is unique, but national data for catastrophic trampoline injuries provides anchors. Serious cervical spine settlements can range from $2 million to $15 million. Serious pediatric fractures with growth disturbance often land in the $500,000 to $2.5 million range. We focus on the lifetime economic impact through specialized Life-Care Planning.

How long do I have to file a claim in Texas?

The standard personal injury statute of limitations is two years from the date of injury. However, for a minor’s personal claim, the clock is often “tolled” (paused) until they turn 18, giving them until age 20 to file. Do not wait. The physical evidence will be destroyed within weeks, and the parent’s own claim for medical reimbursement is generally not tolled.

What if the park says it was my child’s fault for doing a flip?

The park will always try to blame the victim. However, ASTM F2970 and most chain operation manuals classify flips as “Advanced Skills” that must only happen in designated, instructor-supervised zones. If a monitor allowed your child to attempt a flip on an open court, the park violated its own safety mandate.

Does it matter that Urban Air is a franchise?

The park’s insurance adjuster will tell you they are just a “separate local business.” We use the Sampson and Collins precedents to prove apparent agency and franchisor control. The money is upstream at the corporate parent level, and we possess the corporate archeology tools to find it.

The Case Starts Today

The decisions you make this week in Kendleton will determine whether your child has the financial resources they need for recovery five years from now. The park has risk management teams working to close your file. You need a team that fights harder.

Call 1-888-ATTY-911 today for a free, confidential consultation. Ralph Manginello and Lupe Peña are ready to take your call. We answer 24 hours a day, 7 days a week. We represent families in Kendleton, Fort Bend County, and nationwide.

1-888-ATTY-911. Hablamos Español. No fee unless we win.

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