Peer-reviewed veterinary case report
Using PLUS CYCLE to track sleep and activity in hospitalized dogs
By Ohnishi, Akihiro et al.·Published in PloS one·2025·Department of Veterinary Medicine, Japan·View original on PubMed →
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Original publication title: Utility of PLUS CYCLE to measure physical activity and sleep duration and detect postoperative sleep disturbances in hospitalized dogs.
- Species:
- dog
Plain-English summary
Six dogs recovering from cataract surgery were monitored using a device called PLUS CYCLE to track their physical activity and sleep. The study found that dogs with mild pain (rated on a pain scale) had significantly less sleep after surgery compared to those with no pain. This suggests that monitoring sleep can help veterinarians manage pain and recovery in hospitalized dogs. The PLUS CYCLE device proved to be effective in assessing how well the dogs were doing during their recovery.
People also search for: dog surgery recovery sleep problems · cataract surgery pain management for dogs · how to help my dog sleep after surgery
Abstract
Sleep is essential for animal health and welfare. In humans, postsurgical sleep disturbances can delay postoperative recovery. However, objective sleep evaluation in dogs and studies of postoperative sleep disturbances in animals have not been reported. This study aimed to determine whether activity monitors (PLUS CYCLE®; JARMeC, Kanagawa, Japan) can accurately monitor the condition of hospitalized dogs and postoperative sleep disturbances. First, the activity data collected by PLUS CYCLE® were compared with the observation data in a video of hospitalized dogs (n = 9). We determined the correlation between the total hours of physical activity, Sleeping/Resting time and amount of physical activity collected by PLUS CYCLE®, and the time when body movements could not be confirmed (inactive time) recorded by video. There was a strong correlation between the inactive time observed in the videos and the Sleeping/Resting time in PLUS CYCLE® (p < 0.0001, r = 0.95). Thereafter, six hospitalized dogs (n = 6) that underwent phacoemulsification and aspiration surgery for cataracts at the Veterinary Teaching Hospital of the Okayama University of Science were monitored to compare pre- and postoperative amounts of physical activity and Sleeping/Resting time between two groups: the Colorado State University Acute Pain Scale (APS) = 0 group (n = 3) and the APS = 1 group (n = 3). A significant decrease in postoperative sleep duration was observed in the APS = 1 group (p = 0.0224). This prospective study suggested that PLUS CYCLE® can accurately assess the condition of hospitalized dogs and that it has the potential to detect postoperative sleep disturbance. Thus, PLUS CYCLE® may help manage postoperative hospitalization and pain management.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/40570038/