Avatars could help researchers study more muscles
نویسندگان
چکیده
Walking on two legs is a remarkable feat which requires an incredible amount of balance just to walk flat surface. Chances are that when you down the street, don't even register all little pebbles across and have no problem stepping larger obstacles in your way as well. That thanks muscles, respond these hurdles without getting brain involved process. This more impressive considering steps exactly same. The differences how strongly muscle contracts or much weight each part lifting during step very apparent biologists measure running animals. However, rarely seen simplified experiments usually undertaken lab. realization led Nicole Rice, Caitlin Bemis Kiisa Nishikawa Northern Arizona University, USA, Monica Daley University California Irvine, propose solution this comes straight from world video games.The team realized with lab they done under artificial conditions see real world. For instance, muscles almost never contracted for minutes at time like some laboratory experiments. So, Rice colleagues developed ‘avatar’ system based data previous study measured not only electrical signals but also length calf helmeted guineafowl (Numida meleagris) over treadmill. researchers used same stimulate different (the extensor digitorum longus) mouse. In case, mouse avatar guineafowl's.Surprisingly, gave treadmill, responded bird's did, contracting force their bodies obstacle (acting motor) less forcefully shock absorber). Not given were using species guinea fowl 600,000 times than This, then, could open whole new one limits studies size can be used. technique allow work animals highly endangered provide look into truly wonderous feats such cheetahs flight hummingbirds.For nearly 75 years, many looked motor propels forward walk, taking account act brakes, absorbers struts circumstances. allows aspects discover are.
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ژورنال
عنوان ژورنال: The Journal of Experimental Biology
سال: 2023
ISSN: ['1477-9145', '0022-0949']
DOI: https://doi.org/10.1242/jeb.246325