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3Episodes
Category: Science

A fun take on the latest science news with enough data to sink your teeth into. Lagrange Point goes beyond the glossy summary and gets in depth with the research from across the world.

June 24, 2019

Episode 332 - Affordable, smart and helpful prosthetics

Getting a prosthetic limb to feel natural and comfortable without spending a fortune is incredibly difficult. Plus the human body (and prosthetics) change over time. So how can you make a prosthetic better match it's user? We look at three stories of adaptive prosthetics and finding ways to make use of new technology to help improve lives. From building an elaborate treadmill contraption to hearing through your fingers.

 

When you stumble your brain goes into overdrive to keep you standing, but what exactly does it do? 

 

Affordable and comfortably fitting prosthetic limbs are especially important for children who grow out of them quickly. How can we make them more responsive?

 

Hearing words clearly in a noisy environment is especially hard on those with hearing aids. But can your fingers help out?

 

Vanderbilt University researchers built an elaborate treadmill to trip people, with the goal of helping advance prosthetic research. 

 

Using 3D scanning, printing and embedded sensors, researchers are making prosthetic better matched to their users.

 

People often say look with your eyes not your fingers, but can you use your fingers to hear as well?

 

Embedding sensors into 3D printed prosthetics can help adapt the design to better suit the actual wear and tear from the body. 

 

Using an elaborate tripping contraption on a treadmill, Vanderbilt university researchers hope to stop prosthetic leg users falling over. 

 

  1. Yuxin Tong, Ezgi Kucukdeger, Justin Halper, Ellen Cesewski, Elena Karakozoff, Alexander P. Haring, David McIlvain, Manjot Singh, Nikita Khandelwal, Alex Meholic, Sahil Laheri, Akshay Sharma, Blake N. Johnson. Low-cost sensor-integrated 3D-printed personalized prosthetic hands for children with amniotic band syndrome: A case study in sensing pressure distribution on an anatomical human-machine interface (AHMI) using 3D-printed conformal electrode arrays. PLOS ONE, 2019; 14 (3): e0214120 DOI: 10.1371/journal.pone.0214120
  2. Shane T. King, Maura E. Eveld, Andrés Martínez, Karl E. Zelik, Michael Goldfarb. A novel system for introducing precisely-controlled, unanticipated gait perturbations for the study of stumble recovery. Journal of NeuroEngineering and Rehabilitation, 2019; 16 (1) DOI: 10.1186/s12984-019-0527-7
  3. Katarzyna Cieśla, Tomasz Wolak, Artur Lorens, Benedetta Heimler, Henryk Skarżyński, Amir Amedi. Immediate improvement of speech-in-noise perception through multisensory stimulation via an auditory to tactile sensory substitution. Restorative Neurology and Neuroscience, 2019; 37 (2): 155 DOI: 10.3233/RNN-190898
September 10, 2018

Episode 291 - Concussion science, assessment frameworks and biomarkers

Concussions are a serious issue for everyone from the largest professional leagues to the weekend amateurs. The CDC has released some updated guidelines for assessing concussions and we dive into some new tests to help take the decision out of players hands and back it up with some sound evidence. 

  1. Angela Lumba-Brown, David W. Wright, Kelly Sarmiento, Debra Houry. Emergency Department Implementation of the Centers for Disease Control and Prevention Pediatric Mild Traumatic Brain Injury Guideline RecommendationsAnnals of Emergency Medicine, 2018; DOI: 10.1016/j.annemergmed.2018.03.045
  2. Johnson VE, Stewart W, Smith DH. Axonal pathology in traumatic brain injury. Experimental Neurology. 246: 35-43 (2013).
  3. Ling H, Hardy, J, Zetterberg H. Neurological consequences of traumatic brain injuries in sports. Molecular and Cellular Neuroscience. 66(B): 114-122 (2015).
  4. Alexander M. Weber, Anna Pukropski, Christian Kames, Michael Jarrett, Shiroy Dadachanji, Jack Taunton, David K. B. Li, Alexander Rauscher. Pathological Insights From Quantitative Susceptibility Mapping and Diffusion Tensor Imaging in Ice Hockey Players Pre and Post-concussionFrontiers in Neurology, 2018; 9 DOI: 10.3389/fneur.2018.00575
  5. Pashtun Shahim, Yelverton Tegner, Niklas Marklund, Kaj Blennow, Henrik Zetterberg. Neurofilament light and tau as blood biomarkers for sports-related concussionNeurology, 2018; 10.1212/WNL.0000000000005518 DOI: 10.1212/WNL.0000000000005518
April 16, 2018

Episode 270 - Heart racing sport, slowing aging and detecting doping

Is watching a sporting event hard work for your heart? Can you slow down ageing...by skiing? What is the state of the arms race between Doping Athletes and Governing bodies across the globe? Can we measure the effectiveness of the testing procedures of groups like WADA? We find out about some odd, but thought provoking research into sport science.

February 26, 2018

Episode 263 -The science of marginal gains at the Winter Olympics

Did the science of marginal gains help athletes win gold at the Olympics? Now that the Olympics are over, we dig into the science behind the events, and how the athletes edged out their competition using scientific innovations.