Research

Knee replacement surgery decreased after NHS policies on a patient’s weight were introduced, worsening health inequalities, study finds

New research has found that weight/body mass index (BMI) policies introduced by NHS commissioning groups in England are associated with a decrease in knee replacement surgery and may be contributing to health inequalities. With one in ten people likely to need a knee replacement, many thousands of patients are directly affected by these policies.

Amounts of aerosol from vigorous exercise and conversational speaking are similar, finds first study to examine exhaled aerosol emission rates during exercise

Vigorous exercise does not produce significantly more respiratory particles than speaking, but high-intensity exercise does, finds new University of Bristol-led research. The study, published in Communications Medicine, is the first to measure exhaled aerosols generated during exercise, to help inform the risk of airborne viral transmission of SARS-CoV-2 for indoor exercise facilities and sporting and physical group activities.