Table 2. Test-retest reliability of rate of force development, rate of relaxation, % change in RFD, % change in RR and % change in RR ½.
 

t test

95% CI

95% CI

Bias

Random Error

ICC [3,1]

ICC CI Lower

ICC CI Upper

Fatigue Index

-.26

-10.27

8.37

-.95

17.4

.87

.34

.98

% Change in RFD

-.56

-14.30

8.95

11.60

62.2

.72

.02

.95

% Change in RR

.30

-23.00

29.5

3.26

55.7

.14

-.63

.77

% Change in RR ½

-1.06

-2.58

1.01

-.37

1.00

.92

.60

.99
ICC = intraclass correlation coefficient, RFD = rate of force development, RR = rate of relaxation.