Very impressive; I didn't know that. But I think sports weren't as cutting edge competitive back then. As Mark Spitz said, "We didn't have all this fancy stuff when I competed. We just showed up in our swim trunks, didn't even shave our mustaches and jumped right in." I'm paraphrasing but the point is, sport science has taken some huge strides in modern times so while Gould was certainly a phenom, it would be much much harder for someone like her to do today what she did back then because she'd be up against a myriad of opponents specially picked for muscle composition and specifically trained in methods known to be most effective for their physiologies.
Someone on Quora explained it this way
Why are some Olympic swimmers able to win across the board on both short and long distance events while runners aren't able to do so?
The ability of some Olympic swimmers to excel in both short and long-distance events, while runners typically specialize, can be attributed to several factors:
1. Physiological Differences
- Energy Systems: Swimming events can utilize different energy systems more flexibly than running. For example, sprinting (short-distance swimming) primarily relies on anaerobic energy, while longer swims can rely more on aerobic metabolism. Runners, especially sprinters and long-distance athletes, often have more specialized adaptations for their specific event.
- Muscle Fiber Composition: Swimmers can have a mix of fast-twitch and slow-twitch muscle fibers, allowing them to perform well across different distances. Runners often have a more distinct division, with sprinters having more fast-twitch fibers and long-distance runners having more slow-twitch fibers.
2. Technique and Skill
- Versatility in Swimming: Swimming technique plays a significant role in performance. A swimmer can often adjust their technique slightly to optimize for different distances, whereas running form is less variable across distances.
- Starts and Turns: Swimming events include starts and turns, where technique can significantly impact performance. A swimmer can excel in both short and long distances by mastering these techniques.
3. Training Regimens
- Cross-Training: Swimmers often engage in varied training methods that can enhance their performance across distances. For example, they might incorporate interval training that benefits both sprint and endurance performance.
- Recovery and Adaptation: The recovery dynamics in swimming are different. Swimmers can often recover more quickly than runners due to the low-impact nature of the sport, allowing them to train effectively for both short and long distances.
4. Psychological Factors
- Mental Approach: The mental demands of competing in swimming can differ. Swimmers may be more accustomed to varying their pacing and mental strategies between events, while runners tend to have a more intense focus on their specific distance.
5. Event Structure
- Event Schedule: In the Olympics, the swimming schedule allows for athletes to compete in multiple events without as much fatigue as in track events, where the distances can be more taxing on the body.
Conclusion
Overall, the combination of physiological, technical, and training factors contributes to why some swimmers can perform well across distances, whereas runners typically excel in specific events.