An impression of having seen or experienced something before: Old-timers watched the stock-market crash with a distinct sense of dÃ©jÃ  vu. b. Dull familiarity; monotony: the dÃ©jÃ  vu of the tabloid headlines.
Lateral Neck Flexion Stretch. Lateral neck flexion stretch targets the upper trapezius muscle. This stretch can be very useful for people who suffer from tight, aching muscles in the upper back and neck, such as those who work at a computer.his stretch can be very useful for people who suffer from tight, aching muscles in the upper back and neck, such as those who work at a computer.
It is typically thought of as movement of the arm posteriorly, but remember that any motion away from full flexion is extension. Muscles: latissimus dorsi and teres major, long head of triceps, posterior fibers of the deltoid.t is typically thought of as an anterior excursion of the arm, but remember that any motion away from full extension is flexion. Muscles: pectoralis major, coracobrachialis, biceps brachii, anterior fibers of deltoid.