Comparing the Activity Profiles of Wheelchair Rugby Using a Miniaturised Data Logger and Radio-Frequency Tracking System

Table 2

The 95% Limits of Agreement for the times spent and distances covered in arbitrary speed zones for both MDL-1 and MDL-5 compared to the ITS. The 95% Limits of Agreement are presented as systematic bias ± random error.

Arbitrary speed zones
	1	2	3	4	5	6
MDL-1
Times (s)	20±86^∗	6±101	−107±74^∗	94±54^∗	1±70	3±49
Distances (m)	−27±24^∗	21±78^∗	−124±84^∗	160±86^∗	0±167	0±117
MDL-5
Times (s)	−24±77^∗	−48±116^∗	55±114^∗	53±122^∗	3±78	−22±50^∗
Distances (m)	−22±24^∗	−29±89^∗	81±135^∗	113±132^∗	7±152	−68±130^∗

∗denotes a significant systematic bias in relation to ITS. No statistical tests were performed for zones 7 and 8 due to the insufficient sample of athletes who registered speeds in these zones for each device.