With this record you can specify a factor for the initial tendon stress in time (see tendon_stress for the initial tendon stress). A table of time points with factors should be specified. After the last time point in this table is passed, the tendon stress initially is set to the last value (that is the initial_stress multiplied with the last factor), and further on can change due to length changes of the tendon.
Attention: this table is only taken into account if actual time steps are performed by means of control_timestep.