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Fitness

How to Prevent Fear of Heights From Throwing You Off Balance

Human balance is a strange thing. Here's some perspective from science and MovNat.

Robert Handsfield

Written by Robert Handsfield Last updated on Nov 22, 2021

Balance is odd. It’s the result of complex interactions between the visual, vestibular, proprioceptive, and exteroceptive systems, as well as the motor cortex, brain stem, and a handful of reflex arcs. Human balance does some weird stuff, like disappear when we climb ladders.

Seriously. Ever notice how balancing is tougher when you stand on a ladder, chair, or tall platform? It’s true for most people. A person who can balance skillfully on a 24-inch platform will struggle if you raise that platform ten feet into the air. Even after years of teaching and practicing MovNat, I’m still challenged when climbing or traversing tall structures.

The MovNat Hypothesis

Why is it harder to balance on tall platforms? The surface is the same, the conditions are the same, but a typical ground-balancing master will sway, over-correct, and look clumsier than a three-legged horse when standing on a high ledge.

In MovNat, we talk about balance involving the physical mechanisms (posture, relaxation, sequencing) that keep your center of mass above the surface of support and the biofeedback mechanisms (visual, proprioceptive, exteroceptive, vestibular) that inform your state of balance at all times. If being up high impedes a person’s balance, then perception of height must interfere with either the physical or biofeedback mechanisms.

So, does it? I’m curious about how heights affect our physiology and how the MovNat explanation fits with primary scientific research on the topic.

What Science Says

Modern science doesn’t completely understand the systems affecting balance, but research during the last decade suggests that perception of height causes anxiety in all humans, which then compromises movement efficiency and impairs balance. We struggle on ladders for the same reason college basketball players shoot fouls at lower percentages during the NCAA tournament. We choke.

In ecological psychology, the conscious processing hypothesis contends that anxiety brings our focus inward, which disrupts subconscious task processing.1 We attempt to compensate by executing the task consciously, but instead regress to movement behaviors “characteristic of earlier stages of skill acquisition.”2

“If being up high impedes a person’s balance, then perception of height must interfere with either the physical or biofeedback mechanisms.”

During a series of experiments from 2002 to 2006, Dutch professor of movement sciences J.R. Pijpers evaluated the conscious processing hypothesis’ predictions about how anxiety influences movement behavior. Pijpers tracked test subjects traversing two identical routes on a climbing wall, except that one was a low route at 0.4 meters and the other a high route at five meters elevation.

After controlling for sources of bias, Pijpers found that “high on a climbing wall (i.e., under high-anxiety conditions), participants climbed less efficiently than low on the wall,” noting “longer climbing times,” “less fluent displacement of the body’s centre of gravity,” “increase in the number of [exploratory] movements,” longer grasping of hand-holds, slower movements from hold to hold, and less confidence in the subjects’ own abilities.2, 3, 4 The results were consistent with the conscious processing hypothesis and provide strong evidence that height anxiety has a deleterious effect on movement quality.

Physiology and Perception

Physiological processes, from cellular respiration to a perfect muscle-up, are never smooth. They happen as a series of blind processes, over-corrections, over-corrections to the over-corrections, and so on. If you balance on one leg and look at your foot, you’ll see little muscles on opposite sides firing as the myotatic reflex tries to stabilize your shifting weight. When these muscles don’t fire with precise timing and intensity (indicators of high movement quality), balance is degraded.

“Physiological processes, from cellular respiration to a perfect muscle-up, are never smooth. They happen as a series of blind processes, over-corrections, over-corrections to the over-corrections, and so on.”

The link between anxiety and poor physical performance is well documented. Pijpers’ work suggests that balance can be compromised by anxiety. But does being up high always cause anxiety? To answer this question, we need the work of Jeanine Stefanucci and Dennis Proffitt. From 2007 to 2010, psychologists Stefanucci and Proffitt investigated the relationship between fear and the perception of height. During several experiments, test subjects stood on or underneath balconies, and then estimated both heights of the balconies and sizes of circular targets.

Subjects consistently overestimated the heights and sizes; however, the biggest overestimations always happened when subjects stood on top of the balconies. Subjects also reported the highest anxiety on the balconies (which had ledges and railings).5 Bottom line, if you’re a human, standing on top of something, you think you’re higher than you are. Then, you freak out and easy movement patterns become difficult as your physical skills regress to earlier states of motor learning.

The MovNat Solution

I don’t know what specific mechanism causes anxiety when we’re on top of balconies. Evolutionary psychologists would probably say there’s some vestigial height awareness left over from our tree-dwelling ancestors. Evolutionary psychology is tough to prove, but it seems plausible to me that all humans are instinctively wary of heights.

“Bottom line, if you’re a human, standing on top of something, you think you’re higher than you are.“

So, you stand on a tree branch. Perceptual limitations interfere with your biofeedback mechanisms while anxiety interferes with the physical mechanisms required for balancing. You’re pretty much boned because your brain thinks you’re somewhere up in the thermosphere, has given up on coordinating your balance, and left you to handle it. What do you do?

From the MovNat point of view, balancing on a scary tree branch is simply a more challenging version of balancing on the non-scary ground. We adapt to challenging environmental demands by focusing on three fundamental principles of quality movement: posture, relaxation, and sequence.

  1. Posture – Drop That Base: Get your hips down. Squatting, sitting, or lying on the surface of support can increase your physical points of contact, which makes you more stable. It also lowers your center of mass (the center of your hips), which, thanks to trigonometry and physics, allows you to wobble more without falling.
  2. Relaxation – Don’t Look Down: Lowering the head pulls the center of mass forward and causes unnecessary tension in the trapezius muscle. Appropriate tension in the right muscles keeps us stable. Too much tension in the wrong muscles impedes our ability to make fluid adaptive movements. When balancing, engage your core, legs, and feet. Relax your arms, shoulders, neck, and face. Keep a neutral head position by directing your gaze to a specific point on the horizon. I tell my students, “Eyes up. Watch for predators!”
  3. Sequence – Order Is Crucial: Any movement requires a sequence of individual actions. When actions are done in the correct sequence, with appropriate intensity, movements will never feel out of control or risky. On top of a ladder, if you need to step, shift all your weight to your support leg before moving your step leg. Shift your weight back to neutral after your step leg is securely in contact with a stable surface. Time your breathing so that long, slow exhales coincide with fear-inducing movements, like changing hand holds or taking a step. This sequencing reduces the impulse to tense up in response to the fear.

Conclusion

Being human is pretty cool. We get to enjoy ice cream, heavy metal, and darling kitten videos. But this comes with some evolutionary baggage. Freaky height perception and balance impairment are some of that baggage.

By practicing sound movement principles, we mitigate our evolutionary limitations, adapt to challenges, and perform at our best in any environment. Except volcanoes.

More Like This:

  • Balance for Grapplers & Humans
  • The Most Underrated Principle of Strength Training Is…Balance
  • Coordination Training for Future Champions
  • New on Breaking Muscle Today

References:

1. Masters, Richard SW. “Knowledge, Knerves and Know-How: The Role of Explicit versus Implicit Knowledge in the Breakdown of a Complex Motor Skill under Pressure.” British Journal of Psychology 83, no. 3 (1992): 343–58. Accessed March 18, 2015. doi: 10.1111/j.2044-8295.1992.tb02446.x

2. Pijpers, J. R. (Rob), Raôul R. D. Oudejans, Floris Holsheimer, and Bakker, Frank C. “Anxiety–performance Relationships in Climbing: A Process-Oriented Approach.pdf.” Psychology of Sport and Exercise 4, no. 3 (July 2003): 283–304. Accessed March 17, 2015. doi:10.1016/S1469-0292(02)00010-9.

3. Pijpers, J. R. (Rob), Raôul R. D. Oudejans, and Frank C. Bakker. “Anxiety-Induced Changes in Movement Behaviour during the Execution of a Complex Whole-Body Task.” The Quarterly Journal of Experimental Psychology Section A 58, no. 3 (April 2005): 421–45. Accessed March 17, 2015. doi:10.1080/02724980343000945.

4. Pijpers, J. R. (Rob), Raoul R. D. Oudejans, Frank C. Bakker, and Peter J. Beek. “The Role of Anxiety in Perceiving and Realizing Affordances.” Ecological Psychology 18, no. 3 (July 2006): 131–61. Accessed March 17, 2015. doi:10.1207/s15326969eco1803_1.

5. Stefanucci, Jeanine, and Dennis Proffitt. “The Roles of Altitude and Fear in the Perception of Height.” Journal of Experimental Psychology: Human Perception and Performance 35, no. 2 (April 2009): 4224–4438. Accessed March 16, 2015. doi:10.1037/a0013894.

Robert Handsfield

About Robert Handsfield

Robert Handsfield, M.S., is a physicist and MovNat certified trainer in Rochester, New York. A retired swimmer and lifelong explorer, he stays as active as possible while researching statistical computing and shaking his fist at the snow. Robert takes a scientific approach to life fitness, combining primary scientific research with his own independent studies of diets, programs, and methods. He specializes in mobility, injury maintenance, and how to integrate fitness into a busy schedule.

Robert teaches movement at Rochester Parkour, where he helps students develop the tools to understand and augment their own movement abilities. He currently conducts independent research on the mathematics of movement analysis.

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