Variable

Rest

30'

60'

120'

P

Adrenaline (ng/ml)

 

 

 

 

 

Alternating Intensity

0.03±0.03

0.14±0.07

0.20±0.08

0.05±0.03

<0.01;0.23

Constant Intensity

0.03±0.01

0.14±0.05

0.17±0.10

0.04±0.04

Nor-Adrenaline (ng/ml)

 

 

 

 

 

Alternating Intensity

0.62±0.48

1.98±1.30

3.30±1.65

0.84±0.57

<0.01;0.05

Constant Intensity

0.79±0.28

3.03±1.05

3.70±2.06

1.21±0.76

Growth Hormone (ng/ml)

 

 

 

 

 

Alternating Intensity

0.38±0.34

3.62±3.13

7.83±4.34

0.77±0.57

<0.01;0.80

Constant Intensity

0.34±0.37

3.47±3.80

7.50±6.40

0.69±0.81

The first p value represents the time effect; the second p value represents the type (continuous versus intermittent) x time interaction

Table 1: Plasma catecholamines and serum growth hormone changes (mean SD) before, 30 and 60 min of exercise and 1 hour after the end of exercise (ALTCON).