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A study published online May 6, 2026, found that patients who walked more each day after inpatient surgery had lower rates of complications and hospital readmission. The results show an association, not proof that walking caused better outcomes, and patients should ask their surgical team when it is safe to increase activity.
A study of nearly 2,000 adults who underwent inpatient surgery found that patients who walked more after their procedures were less likely to experience complications or return to hospital within 30 days. Published online May 6, 2026, in the Journal of the American College of Surgeons, the observational research links each additional 1,000 daily steps above a patient’s presurgery average with lower odds of those outcomes, but does not establish that walking caused the reductions.
Researchers analyzed data from a large National Institutes of Health research program. Participants wore step-counting devices for at least seven days before surgery and for several weeks afterward, on average. The group included adults who had different types of inpatient operations.
For every 1,000 additional steps per day above a participant’s average before surgery, researchers found a 17% lower chance of complications and a 15% lower likelihood of hospital readmission within 30 days. More walking after surgery was also associated with shorter hospital stays, according to the report. The supplied study summary does not give the size of that reduction.
The study was observational, so it cannot show whether walking itself led to better outcomes. Patients who recover more easily may be able to walk more, while differences in health, surgery type or complications may also affect both step counts and recovery. The available summary does not provide further detail about how researchers accounted for such factors.
How Walking Relates to Recovery
The findings add to evidence connecting movement after surgery with recovery outcomes. Hospitals already encourage patients to begin walking when it is medically safe. Early mobility may help reduce risks such as lung complications, blood clots and weakness, and may contribute to shorter hospital stays, according to the source report.
Step counts could offer patients and care teams a practical way to observe activity over time. The study’s results do not set a universal daily target, however, and they do not show that every patient should increase steps by the same amount. Recovery needs vary with the operation, a person’s overall health and whether complications occur. A wearable tracker can record activity, but it cannot determine on its own what level of movement is safe.
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From Early Mobility to Step Counts
Walking soon after an operation is already part of many hospitals’ recovery approaches, once a patient’s condition allows it. The goal is to avoid prolonged inactivity and support a return to normal function. The report describes early mobility as one of several strategies medical centers use to help prevent problems during recovery.
This study adds a quantified association by comparing postoperative step counts with each patient’s own presurgery average, rather than describing one step target for all patients. It also builds on other studies that, according to the report, have linked more walking after surgery with lower complication rates. The supplied material does not identify those studies or provide their results.
“Ask your surgical team when it’s safe to start increasing your activity level.”
— Lynne Christensen, staff writer for Harvard Health Publications, as quoted in the Seniors Guide report
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Limits of the Step Count Findings
The study’s observational design means the reported percentages show associations, not causal effects. It remains unclear from the supplied account how much the results may reflect differences in patients’ health, procedure types, recovery progress or other factors. The report also does not state the absolute complication or readmission rates, or quantify how much shorter hospital stays were among patients who walked more.
The findings do not identify a safe or beneficial step target for every patient, nor do they establish that increasing activity is appropriate at every stage of recovery. The precise timing and amount of walking depend on the operation and the individual’s condition. Patients should follow instructions from their own surgical and care teams.
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Follow-Up Through Surgical Care
No further study milestone or planned follow-up is given in the source material. For now, the findings provide another reason for patients and care teams to discuss postoperative movement as part of recovery planning. People considering a change in activity should ask their surgical team when walking can safely increase and whether a particular level of activity is suitable for them.
Researchers would need additional evidence, including studies designed to test whether increasing steps directly improves outcomes, to establish cause and effect or support specific step recommendations. Until then, step tracking may help record progress and alert care teams when a patient needs added support, but it should not replace individualized medical guidance.
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Key Questions
What did the study find about walking after surgery?
In an analysis of nearly 2,000 inpatient surgery patients, each additional 1,000 daily steps above a patient’s presurgery average was associated with a 17% lower chance of complications and a 15% lower likelihood of readmission within 30 days. More walking was also linked to shorter hospital stays.
Does the study prove that more steps prevent complications?
No. The study was observational, meaning it identified associations but cannot establish that walking caused the lower complication or readmission rates.
How soon should patients start walking after an operation?
The source report does not give one schedule for all patients. It advises people to ask their surgical team when it is safe to begin increasing activity, since recovery depends on the procedure, overall health and any complications.
Did the researchers recommend a daily step target?
No universal target is provided in the report. The study compared postoperative daily steps with each participant’s average before surgery; it does not establish a goal that is appropriate for every patient.
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