Pre-operative exercise substantially helps with recovery
56% drop in post-operative complications and shorter stays in hospital


Date:
July 12, 2023
Source:
University of Otago
Summary:
Policy-makers are being urged to take notice of a study that
confirms that undertaking a short program of high intensity interval
training before surgery can substantially help with recovery.


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FULL STORY ========================================================================== Policy-makers are being urged to take notice of a University of Otago
study that confirms that undertaking a short programme of high intensity interval training before surgery can substantially help with recovery.

The study, published in the journal Surgery,reviewed and analysed
12 studies including 832 patients who had undertaken preoperative high-intensity interval training. Such training involves repeated aerobic high-intensity intervals at about 80 per cent of the maximum heart rate followed by active recovery.

Lead investigator Dr Kari Clifford says the study included all types of
major surgeries -- those expected to last more than two hours or with
an anticipated blood loss of greater than 500ml -- and included liver,
lung, colorectal, urologic and mixed major abdominal surgeries. The
average age of participants in the intervention group was 66 and 67 in
the control group.

"We have found that high intensity interval training (HIIT) is safe
and effective for surgical patients. A HIIT program can meaningfully
improve a patient's fitness within four to six weeks, and this reduces postoperative complications and length of stay." The most significant
result was the change in cardiorespiratory fitness (CRF) - - a measure
of how well the body takes in oxygen and delivers it to the muscles and
organs during prolonged periods of exercise.

"The pooled results suggest that HIIT increases cardiorespiratory fitness
by 2.39 ml/min/kg. This is not only significantly different than standard surgical care, but is also clinically relevant: we know that this level
of increase is associated with a lower risk of adverse postoperative
outcomes." Generally, post operative complications occur in about 30
per cent of patients, or up to 50 per cent for frail patients. In the
study, those who undertook high intensity interval training prior to
surgery, showed a consistent reduction in post-surgery complications,
such as cardiac complications, pneumonia, and postoperative bowel issues,
she says.

"Our study's pooled results showed that HIIT reduces the risk of having
a complication by 56 per cent, which is substantial; and on average they
stayed for three fewer days in hospital." "All of these findings suggest
that a period -- even as brief as four weeks - - of pre-surgery high
intensity interval training may substantially improve patient outcomes
and bring with it robust benefits across patient populations," she says.

The next step is to find out how to implement such programmes.

"Supervised exercise programs can be expensive, so we are looking
at how effective it is to support people training at home or in the
community. Funding these programs may save money in the long term by
reducing the cost of hospital stay and surgical complications.

"In the meantime, I would say to everyone, it is never too late to improve fitness, and this can really make a difference to health outcomes in
the surgical context."
* RELATED_TOPICS
o Health_&_Medicine
# Fitness # Medical_Education_and_Training #
Today's_Healthcare # Patient_Education_and_Counseling
# Wounds_and_Healing # Obesity # Heart_Disease #
Diseases_and_Conditions
* RELATED_TERMS
o Jogging o Functional_training o Laparoscopic_surgery
o Robotic_surgery o Plastic_surgery o Weight_training o
Anaerobic_exercise o Surgery

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========================================================================== Journal Reference:
1. Kari Clifford, John C. Woodfield, William Tait, Holly A. Campbell,
James
Chris Baldi. Association of Preoperative High-Intensity Interval
Training With Cardiorespiratory Fitness and Postoperative Outcomes
Among Adults Undergoing Major Surgery. JAMA Network Open, 2023;
6 (6): e2320527 DOI: 10.1001/jamanetworkopen.2023.20527 ==========================================================================

Link to news story: https://www.sciencedaily.com/releases/2023/07/230712011445.htm

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