Exponential passive element (Thelen 2003): zero below optimal length, rising
as the fiber is stretched beyond it.
Usage
forceLengthPassive(norm_len, k_pe = 4, e0 = 0.6)
Arguments
- norm_len
Normalised fiber length.
- k_pe
Exponential shape (default 4).
- e0
Passive strain at maximum isometric force (default 0.6).
Value
Passive multiplier (>= 0).