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Governing Committee

Professor Markus Seibel AM, Chair

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Professor Markus Seibel is an Endocrinologist at the University of Sydney and heads the Department of Endocrinology & Metabolism at Concord Hospital, Sydney. He is an active clinician in the field of bone and mineral metabolism and passionate about improving fracture prevention for all Australians. Markus has many years of experience in running and analysing secondary fracture prevention programs. He currently chairs the Alliance’s Governing Committee.

Member Organisation: Australia & New Zealand Bone & Mineral Society

Professor Tania Winzenberg, Deputy Chair

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Professor Tania Winzenberg is an academic general practitioner and epidemiologist with a longstanding research focus on the betterment of bone health, particularly in younger women and in children.  She is a member of the Australian New Zealand Bone and Mineral Society, the American Society for Bone and Mineral Research and of the Royal Australian College of General Practitioners.  Through the RACGP, she has been involved in writing both preventive guidelines and treatment guidelines for osteoporosis.  Tania is also osteoporosis editor of the Cochrane Musculoskeletal Group for the Cochrane Database of Systematic Reviews.

Member Organisation: Royal Australian College of General Practitioners

Professor Cathie Sherrington, Secretary


Professor Cathie Sherrington is a Professorial Research Fellow and National Health and Medical Research Council Senior Research Fellowship holder at the School of Public Health and Institute for Musculoskeletal Health University of Sydney/ Sydney Local Health District where she leads the Physical Activity, Ageing and Disability Research Stream. Her research focuses on the design and evaluation of falls prevention and exercise interventions for older people and those with disabilities. Prior to completing a PhD and Masters of Public Heath, Cathie was a physiotherapist in aged care and rehabilitation settings.

Member Organisation: Australia & New Zealand Fall Prevention Society

Ann Robinson, Treasurer


Ann Robinson is an endorsed Nurse Practitioner (NP) having graduated from James Cook University with a Masters of Nursing, Nurse Practitioner in 2012. Ann is Past President of the Endocrine Nurses Society of Australasia (ENSA) and has worked across both public and private health systems with a special interest in bone health and fracture prevention. Ann currently works at Gold Coast Health as a Nurse Practitioner collaborating between hospital and community services to improve osteoporosis awareness and care.

Member Organisations: Endocrine Nurses Society of Australasia and Australian College of Nurse Practitioners

Professor Mark Kotowicz

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Professor Kotowicz is an endocrinologist and clinical investigator whose research activities have focused on the pathophysiology, epidemiology and treatment of osteoporosis. He was among the first to recognise that a fragility fracture increased the risk of subsequent fracture and reported this relationship between vertebral and hip fracture.  He is Director of the Department of Endocrinology and Diabetes at the University Hospital Geelong, Professor of Endocrinology and Diabetes at Deakin University, a Principal Research Fellow at the University of Melbourne Medical School-Western Campus and a former Chair of the Therapeutics Committee of the Australian and New Zealand Bone and Mineral Society.

Member Organisation: Endocrine Society of Australia

Ms Kerri-Ann Arnott

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Kerri-Ann graduated from University of Sydney in 1982 with a Bachelor of Pharmacy and has worked across the globe for a range of companies including Ciba-Geigy pharmaceuticals, 3M Pharmaceuticals, Johnson & Johnson, and Janssen Australia and New Zealand before retiring in 2021. She joined the CWA of NSW/ACT in 2019 and is currently the Vice-President of the Monaro Group and the Branch Secretary of the Adaminaby Branch. Kerri-Ann is passionate about improving peoples lives through education and empowerment especially women and health care equity in rural, regional, and remote areas

Member Organisation: Country Women's Association of NSW

Mrs Beryl Logie

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Beryl Logie was diagnosed with osteoporosis in 1995. With the support of Arthritis/Osteoporosis Victoria, she started the Melbourne Osteoporosis Support Group Inc. in 1996 and held the position of President from then until 2021. She has been a community speaker on the subject of osteoporosis for over 20 years.

Appointed Member

Professor Ruurd 'Rudi' Jaarsma

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Professor Ruurd 'Rudi' Jaarsma is an orthopaedic surgeon at the Flinders University and the clinical and academic head of the Department of Orthopaedic and Trauma Surgery at Flinders Medical Centre, Adelaide. He is an active orthopaedic trauma surgeon treating significant numbers of potentially preventable fractures. His passion is hip and femur fractures and he has a PhD in rotational malalignment after femur fractures. His academic team has many international collaborations, including multiple double degree PhD students, of (osteoporotic) fracture surgery.

Appointed Member


James Ansell, Executive Officer

Mr James Ansell is the Executive Officer of the SOS Fracture Alliance.  James' background is mainly in the area of Science Communication, he obtained a B.Sci (Hons) degree at the Australian National University and is a PhD Candidate with the Australian Centre for the Public Awareness of Science.  From his previous and current work he has ample and relevant experience in the development of the Alliance's strategic vision.

Correspondence and enquiries for the SOS Fracture Alliance and its Committee Members can be sent to James at


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Professor Bruce Armstrong

Professor Bruce Armstrong is a retired public health physician and public health academic with experience in health service management and operations, and good connections in the NSW Ministry of Health and WA Health Department. He has substantial epidemiological and health services research experience and is contributing to the design of the national secondary fracture prevention program and to establishing what key areas of government are likely to give their support.

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Paul Mitchell

Paul Mitchell has spent the last two decades working on programs to improve fragility fracture care and prevention throughout the world. Paul has served as an advisor to government organisations in New Zealand and the UK. Paul is Chairman of the Board of Trustees of Osteoporosis New Zealand, an Adjunct Senior Lecturer at the University of Notre Dame Australia and Managing Director of Synthesis Medical NZ Ltd. 

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Professor Kerrie Sanders

Professor Kerrie Sanders has been working in clinical research of osteoporosis for more than 20 years and combines this experience with her interest in health economics. In collaboration with Jenny Watts and Julie Abimanyi-Ochom, Kerrie has produced Australian and individual state reports on Burden of Disease analyses for osteoporosis and related fracture 2012 to 2022. Kerrie is a member of several editorial boards and national and international scientific advisory committees including Osteoporosis Australia and the International Osteoporosis Foundation. 

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