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A study published May 6, 2026, found that patients who walked more after inpatient surgery had lower rates of complications and 30-day hospital readmission. The observational findings show an association, not proof that walking caused the better outcomes.
A study of nearly 2,000 adults who had inpatient surgery found that patients who took more steps each day after their operations had lower rates of complications and hospital readmission. For every 1,000 daily steps above a patient’s presurgical average, researchers reported a 17% lower chance of complications and a 15% lower likelihood of readmission within 30 days, though the observational study cannot establish that walking caused those differences.
The study, published online May 6, 2026, in the Journal of the American College of Surgeons, analyzed data from a large National Institutes of Health research program. Researchers included adults who underwent various types of inpatient surgery and used step-counting devices for at least seven days before surgery and for several weeks afterward on average.
The reported comparisons were based on patients’ own average daily step counts before surgery. Each additional 1,000 steps a day above that baseline was associated with a 17% lower chance of complications and a 15% lower likelihood of readmission within 30 days. Greater walking after surgery was also linked to shorter hospital stays; the source report does not provide a specific reduction in length of stay.
Because the study was observational, it cannot show that additional steps directly prevented complications or readmissions. Patients who recover more readily may be able to walk more, and other differences between patients could also help explain the results. The finding is an association, not a prescribed step target or a guarantee of recovery.
Walking and Surgical Recovery
The findings add to evidence on early movement after surgery, a practice hospitals already encourage when it is safe. The source report says mobility can help prevent problems such as lung complications, blood clots and weakness, and may help reduce prolonged hospital stays. The new study links step counts measured over a longer period with outcomes including complications and 30-day readmission.
For patients, the results suggest that walking may be one practical part of recovery, while underscoring that activity has to fit the operation and the individual’s condition. A step count can also give patients and care teams a way to track activity and identify when a patient may need additional support. The study does not establish how many steps a particular person should take.
Patients should ask their surgical team when it is safe to begin moving more and how to increase activity. The study’s findings should not replace individualized instructions, particularly for people whose procedures or recovery involve activity restrictions.
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How the Study Measured Activity
Medical centers commonly encourage patients to begin walking as soon as it is safe after surgery. According to the source report, early mobility is used as one strategy to help guard against complications including blood clots, lung problems and weakness. Recovery also varies with the type of surgery, a patient’s overall health and whether complications arise.
In this study, researchers compared postoperative daily steps with each participant’s average before surgery rather than applying one step-count goal to everyone. That distinction matters: the reported percentages describe associations for each additional 1,000 steps over baseline, not a universal threshold. The study drew on a large NIH research program and included different types of inpatient operations.
The report places the results alongside earlier studies suggesting more walking after surgery may be associated with fewer complications. It does not provide details on which surgery types accounted for the strongest associations or whether the relationship differed across patient groups.
“Medical centers use several strategies, including encouraging people to start walking as soon as it is safe.”
— Lynne Christensen, Harvard Health Publications staff writer, as quoted in the Seniors Guide report
Limits of the Step Count Findings
The observational design leaves open whether walking more contributed to better outcomes or whether patients with fewer health problems and smoother recoveries were able to take more steps. The report does not establish a cause-and-effect relationship, and it does not specify the step count needed to produce a benefit for any individual.
Details about differences by surgery type, patient health, or the timing and pace of walking are not provided in the source material. Nor does the report give an exact figure for how much more activity was associated with shorter stays. The reported percentages describe associations for each 1,000-step increase above the patient’s presurgical average; they are not estimates of an individual’s personal risk reduction.
Guidance for Patients After Surgery
The source report does not announce a new clinical guideline or a specific step-count target. For now, patients should follow their care team’s instructions on when to get up and how to increase activity, since safe timing varies with the procedure and the person’s health.
Patients who use a wearable step counter can discuss the readings with their health care team. As the source report notes, tracking activity may help the team see whether a patient needs more support to move. Further research would be needed to clarify whether increasing steps itself improves outcomes and to identify what activity levels are appropriate for different patients and operations.
Key Questions
What did the study find about walking after surgery?
For each additional 1,000 daily steps above a patient’s presurgical average, researchers found a 17% lower chance of complications and a 15% lower likelihood of hospital readmission within 30 days. More postoperative walking was also linked to shorter hospital stays.
Does the study prove that walking prevents complications?
No. It was an observational study, which can identify associations but cannot prove that walking caused the lower complication or readmission rates.
How many steps should I take after surgery?
The study does not set a step target for patients. Ask your surgical team when it is safe to start increasing activity and what level is appropriate for your procedure and recovery.
Who took part in the study?
Researchers analyzed nearly 2,000 adults who underwent different types of inpatient surgery. Participants wore step-counting devices for at least seven days before surgery and for several weeks afterward on average.
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