Professor Kelly Mackintosh from Swansea University's School of Sport and Exercise Sciences has been recognised as a world-leading expert in sedentary behaviour.
Professor Mackintosh ranks in the top 0.73 per cent of 39,017 published authors on the topic, which refers to activities characterised by very low energy expenditure, such as sitting for long periods, according to Expertscape.
Expertscape helps identify the world's most knowledgeable physicians, health professionals and researchers, objectively ranking authors based on the quality and quantity of their publications from the last ten years.
Professor Mackintosh said: "I am delighted, and a little taken by surprise, to have been highlighted as a top 1 per cent researcher in sedentary behaviour.
"I completed my PhD within this timeframe and was lucky to secure a lectureship at Swansea University, which, at the time, only had a sports focus.
"Under excellent leadership, we have developed a critical mass in exercise sciences, so having our institution highlighted worldwide in this field is an incredible achievement."
This latest recognition is one of many academic achievements for Professor Mackintosh.
Since being awarded the health-enhancing physical activity (HEPA) Europe Early Career Research Star Award in 2016, she has taken on the role of Professor in Swansea University's Applied Sports, Technology, Exercise and Medicine (A-STEM) research centre, and currently leads its Exercise, Medicine and Health Research Group.
To date, Professor Mackintosh has published over 100 internationally peer-reviewed scientific papers focusing on the use of novel approaches to both measure and promote physical activity and decrease sedentary behaviour, across the lifespan and disease status, on a population level.
Most recently, together with Professor Melitta McNarry, Professor Mackintosh has driven the Welsh Institute of Physical Activity Health and Sport (WIPAHS).
A partnership with Sport Wales and all Higher Education Institutes across Wales, the WIPAHS brings together academics, those facilitating physical activity, policymakers, and the public, to address fundamental questions surrounding the nations' health and well-being.
Alongside being a section editor for three journals, in 2019, Professor Mackintosh was on the Chief Medical Officer's (CMO's) expert working group, helping to update the Children and Young People's United Kingdom Physical Activity Guidelines.
Professor Mackintosh currently sits on the CMO's expert committee for surveillance and the World Health Organization's (WHO) Health Enhancing Physical Activity Strategic Management Board.
Professor Mackintosh said: "I truly value opportunities like this, as it allows me to contribute to, and shape, the promotion of physical activity and health, in the UK, Europe and further afield.”