Rudolph's research career reflects consistent high-quality outputs in the form of high impact publications and the successful delivery of masters and doctoral students. In addition to his position at Anglia Ruskin University, he is affiliated with the Hypertension in Africa Research Team, in South Africa. Rudolph is the first or co-author of 114 publications and has an H-index of 24.

Rudolph’s research interests in the field of cardiovascular physiology and epidemiology is varied and addresses various hotly debated topics involving the use of urinary albumin excretion as a marker of cardiovascular damage and its prognostic significance in cardiovascular disease; blood pressure variability and its clinical applicability in cardiovascular risk stratification; leptin and its effects on the cardiovascular system; and even environmental cadmium pollution and its effects on the cardiovascular and skeletal system.