Worse, this extreme neck extension is not healthy for the neck and can lead to stiffness and soreness. (yogauonline.com)
However, Ackland et al. (2011) explored the moment arm lengths of the neck muscles and found that the upper and middle fibers of the trapezius displayed its greatest force producing capacity during neck extension. (strengthandconditioningresearch.com)
Along with a range of foods and fluids engineered to meet the client's specific needs, in 2016 Flavour Creations launched their patented «Dysphagia Cup» designed specifically to reduce neck extension enabling a safer swallow with 100 % of the fluid able to be consumed. (csiro.au)