Joachim Nielsen

Joachim Nielsen is an Associate Professor in the Department of Sports Science and Clinical Biomechanics at the University of Southern Denmark, Faculty of Health Sciences. He is a key member of the Research Unit of Muscle Physiology and Biomechanics, where his work integrates cellular biology with exercise science to understand muscle function under metabolic stress.

Research Interests: His research centers on how subcellular architecture, particularly the spatial organization of glycogen and mitochondria, influences muscle metabolism and signaling. He investigates the role of intramyofibrillar glycogen in sarcoplasmic reticulum calcium release and muscle fatigue, using high-resolution imaging such as electron microscopy. His work spans from basic cellular mechanisms to applications in elite sports and metabolic diseases.

Recent Research Trends: His most recent publications (2024–2025) highlight ongoing investigations into mitochondrial dynamics, mitophagy, lipid-mitochondria interactions, and calcium handling in elite athletes. These studies reflect a consistent focus on subcellular metabolic regulation and its impact on human performance.

Scientific Awards:

• Young Investigator Award - Congress of the European College of Sport Science (2009)

Advising and Grants: While no formal students are listed, Dr. Nielsen contributes to PhD education through co-teaching advanced courses such as 'Muscle Metabolism and E-C Coupling – Role in Exercise, Training and Disease'. He is actively involved in research grants and collaborative projects, evidenced by his extensive publication record and peer review activities for journals like European Journal of Applied Physiology and Journal of Physiology and Biochemistry.

Labs and Teams: He is affiliated with the Research Unit of Muscle Physiology and Biomechanics, where he collaborates closely with prominent researchers such as Niels Ørtenblad, Kristian D. Gejl, and others. His lab utilizes cutting-edge techniques in electron microscopy and cellular physiology to study muscle ultrastructure and metabolism.