vigorist
/ˈvaɪɡərɪst/Definitions
1. noun
One who advocates for a vigorous life, especially in terms of physical fitness and health
“The health enthusiast turned out to be a fervent vigorist, always promoting the importance of exercise.”
2. noun
A proponent of vivisection, especially in the late 19th and early 20th centuries
“The historical records revealed that the scientist was a vigorist, justifying the use of animal experiments for scientific progress.”