|
Table 3. Histochemical
properties of the plantaris and soleus muscles (n = 8 for each muscle
except for the SIT in the plantaris muscle [n = 7]) in the control (CON)
and the sprint-interval training (SIT) groups. The number of samples
of the SIT group in the plantaris was seven since one sample was not
in good condition of freezing. Values are means (± SD). |
| Muscle |
Group |
Fiber type composition (%)
|
Fiber cross sectional area (µm2)
|
||||
|
I
|
IIA
|
IIB
|
I
|
IIA
|
IIB
|
||
| Plantaris |
CON |
11.2
(1.3)
|
22.6
(3.6)
|
66.2
(3.8)
|
1484
(138)
|
1363
(114)
|
2623
(229)
|
|
SIT |
11.2
(2.3)
|
30.2
(4.3)*
|
58.6.
(3.3)*
|
1488
(191)
|
1537
(152)*
|
2694
(265)
|
|
| Soleus |
CON |
85.1
(5.7)
|
14.9
(5.7)
|
—
|
2248
(245)
|
2002
(272)
|
—
|
| SIT |
83.3
(3.9)
|
16.6
(3.9)
|
—
|
2238
(215)
|
1891
(271)
|
—
|
|
|
*
p < 0.05 significantly different from the CON group.
|