David L. Costill

David L. Costill was a prominent sports scientist and physiologist known for his research on human athletic performance and exercise physiology. He studied how muscles use energy during physical activity, helping athletes improve endurance and strength. His work also explored nutrition, hydration, and how training impacts the body. Costill's research has advanced understanding of how the body responds to exercise, making him a key figure in sports science. His contributions have helped athletes train smarter and safer, and his findings continue to influence sports health and performance globally.