Table 2.
Concurrent validity and limits of agreement (LoA) between the drone and radar systems for sprint F-V variables.
Variables
Absolute bias (lower-upper LoA)
%Bias (lower-upper LoA)
Bias interpretation
Tau
(s)
0.04 (-0.14 to 0.22)
3.71 (-11.89 to 19.69)
Poor
A
max
(m·s
-2
)
-0.18 (-1.02 to 0.67)
-2.29 (-12.92 to 8.61)
Poor
V
max
(m·s
-1
)
0.08 (-0.28 to 0.44)
0.96 (-3.17 to 5.10)
Good
V
0
(m·s
-1
)
0.10 (-0.33 to 0.53)
1.12 (-3.66 to 5.91)
Good
F
0
(N·kg
-1
)
-0.20 (-1.06 to 0.67)
-2.55 (-13.37 to 8.56)
Poor
P
max
(W·kg
-1
)
-0.27 (-1.64 to 1.11)
-1.54 (-8.96 to 6.12)
Good
RF
max
(%)
-0.90 (-5.18 to 3.38)
-1.46 (-8.27 to 5.46)
Good
S
FV
(N·s·m
-1
·kg
-1
)
0.03 (-0.10 to 0.16)
3.50 (-11.54 to 18.18)
Poor
T
5m
(s)
0.01 (-0.05 to 0.07)
0.76 (-3.42 to 5.00)
Good
T
10m
(s)
0.01 (-0.06 to 0.08)
0.53 (-2.62 to 3.71)
Good
T
15m
(s)
0.01 (-0.06 to 0.08)
0.39 (-2.15 to 2.96)
Good
T
20m
(s)
0.01 (-0.07 to 0.08)
0.16 (-2.01 to 2.35)
Good
A
5m
(m·s
-2
)
-0.06 (-0.35 to 0.23)
-1.32 (-7.54 to 5.05)
Good
A
10m
(m·s
-2
)
-0.03 (-0.18 to 0.13)
-0.73 (-4.97 to 3.60)
Good
A
15m
(m·s
-2
)
-0.01 (-0.10 to 0.08)
-0.34 (-3.47 to 2.86)
Good
A
20m
(m·s
-2
)
0.00 (-0.07 to 0.07)
0.09 (-2.78 to 3.01)
Good
LoA = limits of agreement.