Researchers studied whether a relaxation technique could help patients after open heart surgery. They enrolled 60 patients who had just undergone heart surgery and randomly assigned half to practice progressive muscle relaxation twice a day for three days after their operation. The other half received standard hospital care without this specific relaxation training.
The study measured patients' pain levels and sleep quality over those three post-operative days. Patients who practiced the relaxation technique reported their pain decreasing more dramatically—from about 9 out of 10 on day one to about 1.5 by day three. Their sleep quality scores also improved more than those in the standard care group, who still reported moderate pain and poorer sleep by day three.
This was a small study at just one hospital, and the researchers did not report any safety concerns or side effects from the relaxation practice. Because the study was limited in size and location, we don't know if these results would apply to all heart surgery patients. The findings suggest this simple, drug-free technique might be a helpful addition to recovery, but larger studies are needed to be sure.