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Segundo o texto, “Texting walkers” são pessoas que - UNICAMP 2016

We’ve modified our behavior so we can text and walk

Texting – or checking social media or reading/responding to mail or reading the news or checking the weather or watching a video – while walking is a pretty common phenomenon. It’s so common that most people who own a mobile device have become texting walkers.
Research suggests that these texters adopt protective measures to minimize the risk of accidents when walking. They’re less likely to trip because they shorten their step length, reduce step frequency, lengthen the time during which both feet are in contact with the ground, and increase obstacle clearance height. Taken together this creates an exaggerated image of walking, but it apparently slows the walker enough so that he registers some of what is happening around him and can compensate for it.

(Adaptado de http://blogs.cientificamerican.com/anthropology-inpratice/we-ve-modified-our-behavior-so-we-can-text-and-walk/.)

Segundo o texto, “Texting walkers” são pessoas que

1. caminham longas distâncias e usam o celular para registrar essas distâncias.

2. escrevem ou leem mensagens, ou veem vídeos no celular enquanto caminham.

3. testam o celular como dispositivo para caminhadas longas.

4. tropeçam e caem quando usam o celular enquanto caminham.

Solução