Table 1: Transversal stiffness (pN/nm) of isolated permeabilized Sol muscle fibers in liquid in relaxed, calcium-activated ( ), and rigor states under 14-day gravitational unloading and 3-day reloading.

State groupRelaxedActivated ( )Rigor

Transversal stiffness of sarcolemma between the M-band and Z-disk projections
Control %/#
14-HS * * */%
14-HS + 3-R $ $ */$

Transversal stiffness of sarcolemma at the M-band projection
Control % %/#
14-HS * */% */%/#
14-HS + 3-R $ $/% $/%/#

Transversal stiffness of sarcolemma at the Z-disk projection
Control % %/#
14-HS * */% */%/#
14-HS + 3-R $ $/% $/%/#

* as compared to the analogous state of the group “Control,” $ as compared to the analogous state of the group “14-HS,” % as compared to the relaxed state at the same group, # as compared to the activated state at the same group.