Lawsuit Alleges Unsafe Conditions at Planet Fitness Gym Resulted in Woman’s Injuries

Woman claims a Planet Fitness gym failed to maintain safe conditions and did not properly inspect, repair or warn members about hazardous conditions at its fitness center.

A New York woman has filed a lawsuit alleging that unsafe conditions inside a Planet Fitness gym caused her to suffer serious injuries while working out.

The complaint (PDF) was brought by Leslie Kosal in New York Supreme Court on February 19, naming Planet Fitness (Lake Ronkonkoma, New York) and Planet Fitness Inc. as defendants. It was removed to the U.S. District Court for the Eastern District of New York on April 20.

According to the lawsuit, Kosal was a paying member of the gym and was lawfully on the workout floor on January 31, 2026, when she was allegedly injured by dangerous conditions involving gym equipment and power sources inside the facility.

The filing claims the equipment and related power connections were placed or maintained in an unsafe manner, creating a hazard for members using the gym.

Planet Fitness Injury Allegations

According to Kosal’s complaint, the incident occurred while she was using the Planet Fitness gym in Lake Ronkonkoma, New York, where she allegedly encountered a dangerous condition on the workout floor involving gym equipment and power sources. 

While the filing does not detail exactly how the incident happened, it claims the gym failed to keep the premises in a reasonably safe condition and did not adequately inspect, repair, correct or warn members about the hazard before Kosal was hurt.

Kosal alleges Planet Fitness knew or should have known about the dangerous condition but failed to take appropriate steps to protect customers. The lawsuit claims that failure led to serious injuries, leaving her “sick, sore, lame and disabled,” with injuries to her body and limbs that required medical treatment and caused ongoing physical pain and suffering. However, the complaint does not identify a specific diagnosis or explain whether the incident involved a fall, an electrical issue, or direct contact with equipment.

“The injuries sustained by Plaintiff, Leslie Kosal were caused by Defendants’ negligence, carelessness, and recklessness in their ownership, operation, maintenance, management, control, and upkeep of the premises including the gym equipment, and power sources located inside, without any negligence on the part of Plaintiff, Leslie Kosal, contributing thereto.”

— Leslie Kosal v. Planet Fitness et al

The lawsuit raises claims of negligence against the defendants. It seeks compensation for damages.

Fitness Center Injury Lawsuits

Kosal’s complaint comes amid growing concerns about safety practices at fitness centers, including scrutiny of equipment layout and whether facilities are properly adhering to manufacturer recommendations designed to reduce the risk of serious injuries.

In a separate Planet Fitness lawsuit filed in October 2025, a Pennsylvania couple alleged that improper placement of gym equipment at one of the company’s locations contributed to the husband’s severe injuries. In that case, the cable on an upright rowing machine suddenly snapped, propelling him backward into nearby machines positioned too closely together. He reportedly suffered a broken rib, a fractured vertebra and a collapsed lung.

Later that same year, a New Jersey woman brought a lawsuit against Lifetime Fitness, claiming she was hurt as a result of the facility’s alleged failure to properly maintain its spin bikes and other equipment.

In addition, a California woman filed a 24 Hour Fitness lawsuit earlier this year, alleging that poor placement of a treadmill and inadequate safety measures at one of its facilities led to her husband suffering a traumatic brain injury, leaving him permanently disabled and requiring constant care.

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