Drowning Prevention or Trauma? The Science Behind ISR swim Lessons.

By Dan Novikov, Founder of DanSwim
February 20, 2025
Over the years, I’ve watched infant swim lessons shift from gentle introduction to the water to something far more intense. These days, more parents are drawn to programs that promise to "drown-proof" their babies in just a few weeks.

It sounds like the ultimate safety net—but is it really?

As a competitive swimmer and coach, I’ve spent over 15 years helping kids and adults build confidence in the water. I’ve seen what works, what doesn’t, and—most importantly—what lasts.

And as a professional, I have some serious concerns about the methods being promoted under the ISR (Infant Swimming Resource) label.

The marketing is slick, and the videos are dramatic.

But does it actually make kids safer?

Or does it give parents a false sense of security while putting children through something far more harmful than they realize? Let’s examine the hidden truths behind ISR.
Selling Fear, Not Real Water Safety

The Problem With Infant Swimming Resource

Parents scrolling through social media may encounter a familiar scene: a video of a fully clothed toddler tumbling into a backyard pool. As panic sets in, the child flips onto their back and floats. The caption reads: “ISR saved this child’s life.”

The ISR instructor cheers on the child’s response in the comments, and parents rush to sign up for lessons. This compelling message plays directly into every parent’s worst fear.

The problem? It’s not the full story.
isr swim lessons website
ISR presents itself as the global leader in survival swimming, boasting about its decades of experience, millions of lessons, and mission to prevent childhood drowning.

Its website claims that ISR provides the “safest and most effective” survival swimming lessons, that children can “save themselves” in water emergencies, and that its approach is crucial to drowning prevention.

But where is the proof?

ISR’s website does not cite a single independent study to support these claims. It also does not provide peer-reviewed research confirming that ISR-trained infants retain these skills long-term or that its methods are the most effective way to prevent drownings.

Instead, ISR’s entire brand relies on dramatic marketing videos and emotionally charged messaging,
playing directly into parents’ worst fears.
Conditioning or Confidence?

The Reality Behind ISR Lessons

ISR’s 10-minute daily lessons are designed to “teach” your child the swim-float-swim sequence: kick a few feet, roll onto the back, float to rest, and continue.

However, the way these lessons are conducted, and their stress on young children are not widely discussed.

As a swim coach, I have worked with children who have undergone ISR training, and one pattern is clear: many emerge from ISR with significant fear of water, poor technique, and an association between swimming and distress.

This approach raises concerns about how stress impacts early motor learning and a child's long-term relationship with water.

Harsh, Stress-Based Training

ISR lessons expose infants to repeated, high-stress experiences, including forced submersion, prolonged struggle, and separation from caregivers. Parents are told this is necessary for teaching survival—but research on child development suggests these methods may do more harm than good.

The stress ISR instructors place on infants isn’t just a passing discomfort—it can have lasting effects on their emotional and psychological well-being.

Babies aren’t learning to swim; they’re experiencing survival-level panic, and their developing brains are taking note.
The Psychological and Physiological Toll
  • Immediate Distress

    When an infant is submerged, its body reacts in full-blown panic mode, crying, gagging, gasping for air, and showing visible signs of distress. This isn’t learning. It’s a fight-or-flight response, a primal reaction to a terrifying situation.
  • Short-Term Consequences

    Studies show that repeated stress without comfort can rewire a child’s response to fear, making them more sensitive to stress in everyday life. Many ISR-trained toddlers become avoidant of water, associating pools, baths, or even splashing with panic.
  • Long-Term Impact

    Research suggests that early exposure to extreme stress increases the risk of anxiety disorders, trust issues, and attachment insecurities later in childhood (Nachmias et al., 1996). A program meant to “protect” children may actually set them up for emotional struggles long after the end of the lessons.

Poor Technique, Poor Retention

ISR claims that its self-rescue program teaches children to move effectively through water, but most ISR-trained children develop a highly inefficient and unsustainable swimming technique.

As a coach, I frequently observe that former ISR students:

  • Have weak, frantic, and ineffective kicks—expending too much energy for too little movement;
  • Struggle with floating stability, often tilting or sinking due to poor balance;
  • Fatigue quickly, as ISR does not build endurance or teach efficient movement;

Suppose a child cannot maintain efficient movement beyond a couple of minutes.

In that case, their "self-rescue" skill is not truly a survival tool—it is a delay tactic that does not account for exhaustion, panic, or unexpected variables.
The Biomechanical Reality
  • Proper swimming technique is essential for water safety

    Floating and kicking alone do not prepare children for real-world conditions where they need endurance and directional control.
  • Skill retention requires consistent, progressive training

    ISR’s 10-minute lesson model does not provide enough room for skill reinforcement—meaning children often forget what they’ve learned, requiring frequent retraining.
  • Muscle memory and coordination take time to develop

    A few weeks of ISR swim lessons do not produce sustainable, biomechanically correct swimming skills.

A Dangerous Misinterpretation of Water Safety

ISR claims to support multiple layers of drowning prevention, yet contradicts itself by stating that “traditional lines of defense break down” and that “the child is the most important part of a drowning prevention strategy.”

This is misleading and dangerous.

The ability to swim—to coordinate floating, breath control, and movement—is a complex motor skill that develops gradually, much like walking.

No one expects a toddler to stand and walk after being repeatedly dropped on their feet, yet ISR suggests that babies can become capable swimmers after mere minutes of practice per day.

The truth?
Developmentally, young children lack:
  • Spatial awareness

    Young children struggle to judge distance, making skills like "swimming to the wall" unreliable in an emergency.
  • Motor control

    Children typically do not fully develop the coordinated movement patterns necessary for swimming until at least the age of 4.
  • Cognitive retention

    ISR lessons require a "refresher" course because infants cannot reliably retain learned behaviors over time.
According to the American Red Cross, 87% of drowning fatalities in home pools or hot tubs occur due to poor adult supervision.

This means most drownings could be prevented by vigilant supervision—not by expecting a child to save themselves.

This is where the business model of ISR becomes apparent.

They simply give parents a false sense of security, leading them to believe their child is “safe” in water after ISR training—when they are not.

A child should never be responsible for their own survival.

The real solution is proper adult supervision, effective barriers, and progressive, confidence-building swim instruction—not fear-based survival drills.
What Parents Are Reporting

Firsthand Experiences

While ISR markets itself as a life-saving intervention, parents who have enrolled their children in the program often report unexpected emotional and behavioral consequences. These stories mirror the scientific concerns about stress conditioning, attachment disruption, and long-term fear responses.
Crying, Distress, and Panic

Immediate Reactions

infant swimming resource isr review
Many parents describe their children experiencing extreme distress during and immediately after ISR lessons.

Symptoms include:

  • Crying uncontrollably during lessons
  • Gagging, vomiting, and hyperventilating from forced submersion
  • Disturbed sleep patterns, including night terrors
Water Aversion and Fear Responses

Short-Term Effects

formal swimming lessons worked as shown on the review from reddit
As predicted by research on early stress conditioning, many children show avoidance behaviors after ISR training, including:

  • Refusing to enter pools voluntarily
  • Showing visible anxiety near water
  • Flinching when exposed to splashing or submersion
Persistent Fear and Regression

Long-Term Impacts

infant swimming resource review
For some children, the effects of ISR extend beyond infancy. Parents report:

  • Requiring therapy to help children regain water confidence
  • Developing long-term anxiety toward swimming
  • Difficulty transitioning into traditional swimming lessons

A Smarter, More Effective Approach to Water Safety

Instead of relying on short-term conditioning and fear-based marketing, parents should focus on comprehensive, research-backed water safety strategies:
  • Supervision is Non-Negotiable

    No lesson replaces active adult supervision at all times.
  • Physical Barriers Are Critical

    Fences, pool covers, and alarms prevent more drownings than any survival swim training.
  • Swimming is a Lifelong Skill

    Progressive, biomechanically correct swim instruction builds true safety and confidence.
  • No Quick Fixes Exist

    Swimming, like walking, is a gradual skill. Expecting infants to "self-rescue" under real drowning conditions is unrealistic.
ISR sells parents on urgency, fear, and incomplete solutions.

But real drowning prevention requires responsible adult supervision, progressive skill development, and safer environments—not rushed, stress-based conditioning.
Rethinking Swim Lessons

No False Promises: Empowering Parents with Better Choices

Water safety is a real and valid concern, but fear-driven approaches like ISR are not the answer.

Parents deserve to make informed choices that align with scientific research, developmental principles, and real skill-building.

By choosing gentle, trust-based swim instruction, parents can provide their children with the confidence, skill, and safety they need to thrive in aquatic environments.

Let’s move beyond fear and towards a future where every child learns to swim with security and joy. ✊

About Author

Dan Novikov
NCAA All-American Champion
USA Masters Champion
Owner of NYC Swim School
Dan is an accomplished All-American and USA Masters swimmer, bringing over ten years of coaching experience to the pool. As a dedicated swim coach, Dan has a proven track record of helping swimmers of all ages and abilities achieve their goals.