Homerton bariatric service: physiotherapy essential advice

Why is exercise important before and after bariatric surgery?

Physical activity plays a vital role in your bariatric surgery journey – from preparing your body for surgery to helping ensure a safe recovery, and supporting long-term weight management. Below we have outlined the advised recommendations for a safe and successful surgery outcome. If you are struggling to meet these guidelines, it is important you discuss this with a member of the Bariatric team to establish if any further support is required.

Before Surgery – Get Your Body Ready

After Surgery – Keep Moving, Stay Strong

Goals:

  • Improve fitness for surgery (reduces anaesthetic risks and surgical complications)
  • Build muscle strength and stamina to improve post-op recovery

Goals:

  • Enhance weight loss outcomes
  • Preserve muscle mass during weight loss
  • Help reduce risk of weight re-gain
  • Improve blood pressure, blood sugar and cholesterol

Recommended Activities:

  • Aim for at least 150 minutes of moderate-intensity exercise per week (e.g., brisk walking, cycling). This can be broken down into 10-minute bouts.
  • Include strength-building activities at least 2 days a week (e.g., bodyweight exercises, resistance bands)
  • Reduce sitting time – stand or move regularly throughout the day

Start gradually if you are not active. Every movement counts!

Early Recovery (0–6 weeks):

  • Start gentle walking as soon as advised – usually within 24 hours
  • Increase walking time daily (little and often)
  • Avoid lifting heavy objects for 4–6 weeks

6 Weeks and Beyond:

  • Gradually return to 150–300 minutes/week of moderate-intensity aerobic activity
  • Add muscle-strengthening exercises (e.g., resistance training) at least 2 days/week

Risks of Not Exercising

  • Higher risk of post-surgical complications (e.g., respiratory problems, slower wound healing)
  • Slower recovery and return to daily activities
  • Reduced weight loss and higher chance of regaining weight
  • Loss of muscle mass and physical function
  • Increased risk of long-term health problems (e.g., type 2 diabetes, heart disease)

Further information:

  • Please refer to the Homerton Bariatric Surgery Service Website (www.homerton.nhs.uk/obesity-surgery-bariatrics/). Under the ‘patient resources’ section, review the physiotherapy resources for further essential education videos, exercise videos and patient testimonials.
  • Seek out resources in your local borough, for example ask your GP to refer you to your local 'Physical Activity on Referral' programme if available.
  • Search for resources online to exercise at home, such as the NHS fitness studio videos (www.nhs.uk/live-well/exercise/about-our-videos/).