Methods: Passive shoulder internal rotation and total range of motion (internal rotation + external rotation) were measured before match play, immediately after match play, and 24 hours post match play.
Results: Nearly 50% of these athletes (79 subjects) presented with a clinically significant loss of internal rotation immediately following match play as well as 24 hours post match play. Nearly 40% presented with a clinically significant loss of total range of motion immediately following match play.
I appreciated the sub-group analysis the authors provided in this paper, because it also showed that some athletes maintained motion, others gained motion, but the majority tended to lose it. Other studies I've seen published on acute motion loss haven’t provided the extra analysis and it goes to show that shoulders can respond differently overhead activity. It is important to identify those who are losing their motion acutely, because it may put them at increased risk of injury.
In conclusion the authors state...
"Given the changes in glenohumeral motion following acute exposure to tennis, evaluation of players for significant motion alterations following overhead activity and intervention strategies to minimize such alterations in these players are recommended for high level tennis players."
This is another reason Movement Guides, Inc. has created and are continuing to develop the T-Dot Mobility System. If soft tissue restrictions are primarily responsible for these acute changes, having a tool help re-establish homeostasis immediately following competition would seem to be advantageous. You can learn more at www.movementguides.com.
Moore-Reed SD, Kibler WB, Myers N, Smith BJ. Acute Changes in Passive Glenohumeral Rotation Following Tennis Play Exposure in Elite Female Players. Int J Sports Phys Ther. 2016; 11: 230-236.