proprioception, haptic, taptic engine, with one's back to (orup against) the wall

A few implanted electrodes and this experimental haptic prosthetic let an amputee feel sensations in his missing hand. http://trib.al/lIBhAfe

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Prosthetic Hand Restores Amputee's Sense of Touch

SPECTRUM.IEEE.ORG

“There is a direct union of oneself with a motorcycle, for it is so geared to one’s proprioception, one’s movements and postures, that it responds almost like part of one’s own body. Bike and rider become a single, indivisible entity; it is very much like riding a horse. A car cannot become part of one in quite the same way.” 
―ON THE MOVE: A Life by Oliver Sacks

Greece, Its Back to the Wall, Adopts Austerity Steps

By SUZANNE DALEY and JAMES KANTER

Lawmakers approved a package of harsh austerity measures and economic policy changes that were required by its creditors as the terms of a $94 billion bailout package.

Apple - Apple Watch - Technology
https://www.apple.com/watch/technology/
It's called the Taptic Engine, a linear actuator inside Apple Watch that produces haptic feedback. In less technical terms, it taps you on the wrist whenever you ...
In the news

Apple Watch: Faulty Taptic Engine Slows Rollout
Wall Street Journal‎ - 3 hours agoThe taptic engine, a key component of the Apple Watch, made by one of two suppliers was ...

According to the Wall Street Journal, some taptic engines supplied by AAC Technologies Holdings Inc., of Shenzhen, China, started to break down over time. That prompted Apple to scrap some finished watches.

The report offers one possible explanation why some people must wait until the summer to get the watches they ordered, even though Apple began shipping the high tech timepieces on April 24.

Apple's product launch mishaps are infrequent but not unprecedented. In 2010, the late Steve Jobs had to defend "Antennagate," the episode in which some iPhone 4 owners complained of dropped calls when they held the phone a certain way.

Proprioception (/ˌproʊprioʊˈsɛpʃən, -priə-/^[1][2] pro-pree-o-sep-shən), from Latin proprius, meaning "one's own", "individual," and capio, capere, to take or grasp, is the sense of the relative position of neighbouring parts of the body and strength of effort being employed in movement.^[3]本體感覺，又稱肌肉運動知覺是一種對肌肉各個部份的動作或者一連串動作所產生的觸覺，稱呼為「自我知覺」。可是對某些人來說肌肉運動知覺跟自我知覺不同在於保持平衡的觸覺。例如：當內耳受到感染，就會影響平衡。這個感染損害了自我知覺而不是肌肉運動知覺。受感染的人能夠走路，但是只能靠視覺來保持平衡而不是自我知覺。這些人閉著眼睛是不能走路的。

Definition of

 haptic 

in English:

adjective

technical

Relating to the sense of touch, in particular relating to the perception and manipulation of objects using the senses of touch and proprioception:haptic feedback devices create the illusion of substance and force within the virtual world

Origin

Late 19th century: from Greek haptikos 'able to touch or grasp', from haptein 'fasten'.

with one's back to (orup against) the wall

Definition of with one's back to or up against the wall in English:

In a desperate situation.