Table 1.

Subjects and exercise training

Body mass (kg)
Treatment†
NInitialFinalAge (days)Duration (days)ûNumber of bouts
Experiment 1        
    Sedentary        
        Low E2 4 19.41±1.23 24.68±2.54 134±28 45 None  
        High E2 4 20.68±1.30 23.62±1.66 147±30 45 None  
    Exercised        
        Low E2 4 19.80±2.85 24.41±2.47 106±21 45 0.5 2 
        High E2 4 18.03±2.60 24.03±1.00 128±26 45 0.5 2 
Experiment 2        
    Sedentary        
        Low E2 2 26.25±0.35* 37.25±0.21* 121±1 45 None  
        Normal E2 4 26.20±3.81 39.03±3.37 132±19 45 None  
        High E2 2 27.40±3.11* 38.10±3.39* 132±16 45 None  
    Exercised        
        Low E2 2 28.25±0.92* 37.90±2.40* 124±10 45 0.5 2 
        Normal E2 4 24.88±3.91 37.18±6.28 131±20 45 0.5 2 
        High E2 2 25.50±1.41* 37.90±4.81* 127±12 45 0.5 2 
Body mass (kg)
Treatment†
NInitialFinalAge (days)Duration (days)ûNumber of bouts
Experiment 1        
    Sedentary        
        Low E2 4 19.41±1.23 24.68±2.54 134±28 45 None  
        High E2 4 20.68±1.30 23.62±1.66 147±30 45 None  
    Exercised        
        Low E2 4 19.80±2.85 24.41±2.47 106±21 45 0.5 2 
        High E2 4 18.03±2.60 24.03±1.00 128±26 45 0.5 2 
Experiment 2        
    Sedentary        
        Low E2 2 26.25±0.35* 37.25±0.21* 121±1 45 None  
        Normal E2 4 26.20±3.81 39.03±3.37 132±19 45 None  
        High E2 2 27.40±3.11* 38.10±3.39* 132±16 45 None  
    Exercised        
        Low E2 2 28.25±0.92* 37.90±2.40* 124±10 45 0.5 2 
        Normal E2 4 24.88±3.91 37.18±6.28 131±20 45 0.5 2 
        High E2 2 25.50±1.41* 37.90±4.81* 127±12 45 0.5 2 

Values are means ± 1 s.d.

1 treatment bout = 20 min day-1.

†

Froude number û=v2(gh)-0.5, where v=speed (m s-1), g=acceleration constant, h=hip height (m) (Alexander,1977).

*

Significantly different from same treatment group in Experiment 1(P<0.05, ANOVA, post-hoc Fisher's LSD test).

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