Muscle Growth & Endurance

Why Kenyans and other East Africans dominate the marathon

24 February 2023
Jacob Müller

It is a remarkable phenomenon: East African athletes, particularly Kenyans and Ethiopians, consistently dominate marathons at the global level. What 4 factors contribute to this unparalleled success, and what can we learn from them?

1. Genetic predisposition

One of the key factors behind the success of East African runners is their genetic predisposition. Genetic traits such as a high proportion of slow-twitch muscle fibers and efficient oxygen usage are beneficial for endurance performance. These genetic advantages are often passed down from generation to generation.

Research has shown that East African athletes often have a higher percentage of slow-twitch muscle fibers. These slow-twitch fibers are advantageous for endurance sports because they are more efficient at providing energy over extended periods. This genetic trait appears to give them an edge in activities like the marathon, which require exceptional endurance.

Another genetic factor is the body's efficient use of oxygen. East African runners often exhibit a high maximal oxygen uptake (VO2 max), meaning they can transport and use more oxygen in their muscles while running. This contributes to their exceptional endurance.

The genetic predisposition of East Africans for endurance sports is also attributed to long-term evolution. Over generations, those who could efficiently move over large distances and display endurance had an evolutionary advantage. This has led to genetic selection favorable for endurance performance.

2. Altitude as a training advantage

Most East African runners come from regions characterized by high altitudes, such as the Rift Valley in Kenya and the Ethiopian Highlands. Training at high altitudes stimulates the production of red blood cells, enhancing oxygen transport to the muscles. This altitude training effect contributes to their exceptional endurance.

At high altitudes, the partial pressure of oxygen is lower, leading to hypoxia or oxygen deficiency. The body responds by stimulating the production of red blood cells. Red blood cells contain hemoglobin, which is responsible for transporting oxygen to the muscles. The increase in red blood cells improves oxygen transport, which is beneficial for endurance athletes.

Altitude training promotes the development of new capillaries, the small blood vessels that transport oxygen to muscle tissue. Increased capillary density ensures more efficient oxygen delivery to working muscles, which is crucial for sustained endurance performance.

The body adapts by using available oxygen more efficiently. This includes improved mitochondrial function, the energy powerhouses of cells. Endurance athletes training at altitude often show better mitochondrial density and function, resulting in improved aerobic performance.

Overall, altitude training leads to increased aerobic capacity, enhancing the body's ability to use oxygen efficiently. This translates into better endurance, allowing athletes to perform better in long-duration efforts like marathons and cycling races.

3. Starting young

Many East African athletes begin running at a young age as a natural part of their daily lives. They run long distances to school or while helping on the farm. This early exposure to prolonged physical activity contributes to their endurance.

Young East African talents grow up in an environment where running is a daily practice. They navigate natural terrains, which promotes the development of their running style and muscle strength.

From an early age, many young athletes join local running communities or train with older athletes. This sense of community provides not only mental support but also exposes them to varied and challenging training conditions.

Young talents integrate long-distance running into their daily routine. They run long distances to go to school or perform daily tasks. This consistency contributes to the development of endurance from a young age.

Some regions have talent identification programs where gifted youths are spotted and guided by experienced coaches. These programs offer structured training and support to maximize the potential of young athletes.

Due to the rich history of East African success in long-distance running, there is often a cultural focus on achieving olympic success. Young athletes are encouraged to participate in competitions and compete with talented peers.

4. Training methods

The training methods in East African countries are often intense and focused on endurance running. Long-distance training on varied terrain, combined with a relatively simple diet, contributes to the development of muscle endurance and efficient energy utilization.

East African runners embrace long-distance running but with a focus on variety. They combine slow, moderate, and fast paces during different training sessions. This variety helps in developing both endurance and speed.

Many runners from this region train in groups. The group dynamics stimulate competition and collaboration, which enhances performance. The sense of community creates a supportive environment and motivates athletes to push their limits.

East African runners prefer training on natural surfaces, such as dirt trails and hilly terrain. This helps in developing strong and resilient muscles and joints while also reducing the risk of injury.

In addition to running, East African athletes focus on developing core strength. A strong core contributes to an efficient running posture and helps maintain a stable and powerful stride.

Conclusion

The dominance of East African athletes in marathons is the result of a unique combination of genetic predisposition and training conditions. Incorporate some of the above training methods into your routine or book a ticket to Kenya and win every marathon with ease! Unless you already have the genetic predisposition, of course.