Discrepancies between Skinned Single Muscle Fibres and Whole Thigh Muscle Function Characteristics in Young and Elderly Human Subjects
Table 4
Dates of degraded quality in single muscle fiber mechanics.
Classification
Fiber type
CSA (μm2)
SF (mN/mm2)
Vo (FL/s)
F (mN)
Stored days
YM
I (),
4655.93 ± 807.40
36.02 ± 8.65
2.34 ± 1.04
0.13 ± 0.04
16.67 ± 19.07
IIa (),
I/II hybrid ()
OM
I (),
4010.57 ± 2716.34
45.02 ± 18.10
2.17 ± 1.57
0.15 ± 0.14
28.57 ± 18.54
IIa (),
I/II hybrid ()
YW
I ()
3582.36 ± 871.25
40.82 ± 15.12
0.83 ± 0.22
0.12 ± 0.05
21.27 ± 22.35
OW
I (),
3697.38 ± 654.92
45.01 ± 17.33
0.80 ± 0.28
0.13 ± 0.05
40.63 ± 23.32
I/II hybrid ()
Values are presented as means ± standard deviation. YM = young men, OM = old men, YW = young women, OW = old women, CSA = cross-sectional area, SF = specific force, Vo = maximum shortening velocity, F = maximal contractile force.
