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Hugh Herr

Hugh Herr is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Hugh Herr rather than just read about it. In short: Hugh Herr (born October 25, 1964) is an American rock climber, engineer, and biophysicist. When he was young, both of his legs were amputated below the knee due to an accident during an unexpected blizzard that occurred on a rock climbing trip.

Hugh Herr — main illustration
Hugh Herr — illustration

Key takeaways

  • Hugh Herr belongs to physics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Hugh Herr to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Hugh Herr from memory before moving on to harder problems.

Reference excerpt

Hugh Herr (born October 25, 1964) is an American rock climber, engineer, and biophysicist. When he was young, both of his legs were amputated below the knee due to an accident during an unexpected blizzard that occurred on a rock climbing trip. After months of surgeries and rehabilitation, Herr began climbing again, using specialized prostheses he designed for himself, becoming the first person with a major amputation to perform in a sport on par with elite-level, able-bodied persons. He holds the patents to the Rheo Knee, an active ankle-foot orthosis, which is the world's first powered ankle-foot prosthesis.

Early life The youngest of five siblings of a Mennonite family from Lancaster, Pennsylvania, Hugh Herr was a prodigy rock climber: by age 8, he had scaled the face of the 11,627-foot (3,544 m) Mount Temple in the Canadian Rockies, and by 17 he was acknowledged to be one of the best climbers in the United States. In January 1982, after having ascended a difficult technical ice route in Huntington Ravine on Mount Washington in New Hampshire, Herr and fellow climber Jeff Batzer were caught in a blizzard and became disoriented, finally descending into the Great Gulf where they passed three nights in −20 °F (−29 °C) degree temperatures. By the time they were rescued, the climbers had severe frostbite. Both of Herr's legs had to be amputated below the knees; Batzer lost his lower left leg, the toes on his right foot, and the thumb and fingers on his right hand. During the rescue attempt, volunteer Albert Dow was killed by an avalanche. Following months of surgeries and rehabilitation, Herr was doing what doctors told him was unthinkable: climbing again. Using specialized prostheses that he designed, he created prosthetic feet with high toe stiffness that made it possible to stand on small rock edges the width of a coin, and titanium-spiked feet that assisted him in ascending steep ice walls. He used these prostheses to alter his height to avoid awkward body positions and to grab hand and foot holds previously out of reach. His height could range from five to eight feet (1.5 to 2.4 m). As a result of using the prostheses, Herr climbed at a more advanced level than he had before the accident, making him the first person with a major amputation to perform in a sport on par with elite-level, able-bodied persons.

Career

While a postdoctoral fellow at MIT in biomedical devices, Herr began working on advanced leg prostheses and orthoses, devices that emulate the functionality of the human leg. He is now a professor at the MIT Media Lab, where he directs the Biomechatronics research group and co-directs the K. Lisa Yang Center for Bionics. At the center, he focuses on developing wearable robotic systems that serve to augment human physical capability. Most of what he designs is not for him, but for others to whose difficulties he can relate. The devices he designs are advancing an emerging field of engineering science that applies principles of biomechanics and neural control to guide the designs of human rehabilitation and augmentative devices. The goal is to rehabilitate individuals that have undergone limb amputation or have a pathology, and also to augment human physical capability for those with normal intact physiologies. Herr holds the patents to a computer-controlled artificial knee, commercially available as the Rheo Knee an active ankle-foot orthosis, and the world's first powered ankle-foot prosthesis. The computer-controlled knee, which is outfitted with a microprocessor that continually senses the joint's position and the loads applied to the limb, was named one of the Top Ten Inventions in the health category by Time magazine in 2004. The robotic ankle-foot prosthesis, which mimics the action of a biological leg and, for the first time, provides transtibial amputees with a natural gait, was named to the same Time top-ten list in 2007.

Oscar Pistorius Herr was a member of a team of seven experts in biomechanics and physiology from six universities that conducted research on the mechanics of Oscar Pistorius' running blades. The South African bilateral amputee track athlete was banned by the International Association of Athletics Federations (IAAF) from running in able-bodied events, as previous research had shown the blades gave him a competitive advantage. A portion of these results were presented to the Court of Arbitration for Sport (CAS) in Lausanne, Switzerland in May 2008, by Herr and colleague Rodger Kram which resulted in reversing the ban. This allowed Pistorius to become the first disabled sprint runner to qualify against able-bodied athletes for an Olympic event. The full findings of the team's experiments were published in the June 18, 2009 issue of the Journal of Applied Physiology.

Grants and awards Sports Hall of Fame (1989) United States College Academic Team (1990) Young American Award (1990) Science magazine Next Wave: Best of 2003 Time magazine Top Ten Inventions 2004 With the Providence VA Center for Restorative and Regenerative Medicine and Brown University, a $7.2 million grant from the US Department of Veterans Affairs to create "biohybrid" limbs to restore natural function to amputees. (2004) Popular Mechanics Breakthrough Leadership Award (2005) The 13th Annual Heinz Award in Technology, the Economy and Employment (2007) Time magazine Top Ten Inventions 2007 Action Maverick Award (2008) Spirit of Da Vinci Award (2008) R&D Magazine's 2014 Innovator of the Year Smithsonian magazine's American Ingenuity Award (2014) in the Technology Category Princess of Asturias Awards for Technical & Scientific Research (2016)

Rock climbs 1983 Vandals, Gunks, FA with Lynn Hill and Russ Clune, first 5.13 on the East Coast. 1984 Stage Fright (5.12c X), Cathedral Ledge, North Conway, NH. First Ascent. 1986 Ride of the Valkyries (5.12a), Careno Crag, Leavenworth, WA – First Ascent. 1986 City Park (5.13c), Index Town Walls, WA – 2nd ascent.

References

Further reading Osius, Alison, Second Ascent: The Story of Hugh Herr, 1991. Ascent: The Story of Hugh Herr, National Geographic, 2002. Reinventing Bionics: Augmented, Nova PBS, 2022.

Illustrations

Hugh Herr illustration
Hugh Herr: Hugh Herr climbs the wall at the MIT Media Lab's h2.0 symposium on May 9, 2007, watched by fellow bilateral amputee Aimee Mullins
Hugh Herr climbs the wall at the MIT Media Lab's h2.0 symposium on May 9, 2007, watched by fellow bilateral amputee Aimee Mullins
Hugh Herr: Herr presenting prosthetic legs at TED 2014, where he first demonstrated a running gait under neural command.
Herr presenting prosthetic legs at TED 2014, where he first demonstrated a running gait under neural command.

Worked examples

Example 1 — a first encounter with Hugh Herr

Start with the simplest possible case. Write down what Hugh Herr claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Hugh Herr before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Hugh Herr ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Hugh Herr

In research
Hugh Herr appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Hugh Herr in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Hugh Herr is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1964 births, 20th-century American sportsmen, 21st-century American scientists, so understanding it makes those chapters shorter.
In everyday life
Look for Hugh Herr outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Hugh Herr in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Hugh Herr means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Hugh Herr out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Hugh Herr in simple terms?

Hugh Herr (born October 25, 1964) is an American rock climber, engineer, and biophysicist. When he was young, both of his legs were amputated below the knee due to an accident during an unexpected blizzard that occurred on a rock climbing trip.

Why does Hugh Herr matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Hugh Herr?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Hugh Herr.

Tags

  • 1964 births
  • 20th-century American sportsmen
  • 21st-century American scientists
  • American amputees
  • American biophysicists
  • American rock climbers
  • American scientists with disabilities
  • Engineers from Pennsylvania
  • Harvard University alumni
  • Living people
  • MIT Media Lab people
  • Massachusetts Institute of Technology alumni

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