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. 2018 Jul 3;9:810. doi: 10.3389/fphys.2018.00810

FIGURE 2.

FIGURE 2

Experimental set-up of myotonometric measurements used in RSL bed rest. Upper panel (A,B) shows magnifications of color-coded flat-end probe to show (A) inactivated (orange light) and (B) activated (green light) sensor probe (vertical tolerance 3 mm) sensor tip. In (A), orange probe shows (re-)positioning phase (0.40N), in (B), green probe shows oscillation acceleration phase ongoing (with x 0.8 s mechanical force intervals). (C) Shows the device in perpendicular position with probe gently touching a premarked dorsal leg skin measure point (MP17, soleus) to collect natural oscillation signal patterns in a bed rest study participant lying prone on his own 6° HDT matress at full rest in his study room. Note half-pillow support for standardization of ankle position during sessions. Credit: Myoton AS and D. Blottner.