common aggravating activities included kicking, sprinting,
and changing directions while running. The majority of
long-standing groin pain group (N 7) complained of
bilateral groin pain.
When participants in the long-standing groin pain group
completed the ASLR task, there were no significant differences
between the onsets of the abdominal muscles and that
of the prime mover for the task RF (all P 0.28). Representative
EMG data for a participant in the long-standing
groin pain group is detailed in Figure 1.
Comparison between long-standing groin pain
and control participants. Figure 2 illustrates the means
and standard errors of the EMG onset of muscle activity of
the abdominal muscles with respect to the onset of RF
EMG, the prime mover of the ASLR task. Unpaired t-tests
indicated that there was a significant difference in the onset
of TrA between the control and long-standing groin pain
groups (P 0.05), with the onset of TrA occurring later
with respect to RF in the long-standing groin pain group.
There were no significant differences in the onset of activity of
IO, OE, and RA between the control and long-standing groin
pain groups (all P 0.05). The onset of movement occurred
later in the long-standing groin pain group (P0.03), but there