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Table 3 Muscle glycogen and glucose uptake, glucose oxidation and glycogen synthesis in the isolated soleus muscle in the rest (R) and after acute physical exercise (E) at the 60 days

From: Muscle glycogen metabolism changes in rats fed early postnatal a fructose-rich diet after maternal protein malnutrition: effects of acute physical exercise at the maximal lactate steady-state intensity

 

B

BF

LB

LF

Concentration of glycogen (mg/100 mg)

R

0.44 ± 0.06a

0.53 ± 0.11a

0.51 ± 0.09a

0.65 ± 0.17b

 

E

0.28 ± 0.09*

0.27 ± 0.09*

0.26 ± 0.09*

0.29 ± 0.15*

Glucose uptake (μmol/g.h)

R

2.60 ± 0.17

2.80 ± 0.42

2.38 ± 0.47

2.22 ± 0.65

 

E

2.26 ± 0.41

2.50 ± 0.38

2.19 ± 0.32

2.27 ± 0.47

Glucose oxidation (μmol/g.h)

R

4.09 ± 0.72

3.58 ± 1.64

3.40 ± 1.12

3.41 ± 1.95

 

E

3.91 ± 1.20

4.08 ± 1.60

3.18 ± 0.47

3.33 ± 1.70

Glycogen synthesis (μmol/g.h)

R

0.03 ± 0.01a

0.04 ± 0.02a

0.04 ± 0.03a

0.07 ± 0.01b

 

E

0.08 ± 0.02a*

0.06 ± 0.04a

0.08 ± 0.04a*

0.18 ± 0.13b*

  1. Results expressed as the mean ± standard deviation of 10 rats per group.
  2. B: balanced; BF: balanced/fructose; LB: low protein/balanced; LF: low protein/fructose.
  3. R: at rest; E: after acute physical exercise.
  4. Different letters indicate significant difference among groups (a#b). Two-Way ANOVA and Newman-Keuls’ Post-Hoc (p < 0.05).
  5. *intra-group difference by Student’s t-test (at rest vs. acute physical exercise).