Introduction
There have long been conflicting sentiments in the enduring conversation about the factors impacting athletes’ ability to enhance their performance. The reading by Rowland (2018) presents two sides: the supporters of the theory of deliberate practice and followers of genetic determinism. Genetic determinism proponents argue that predetermined genetic characteristics limit a person’s ability to improve performance through training, as they are passed down from parents.
In stark contrast, advocates of the theory of deliberate practice proclaim that an individual’s ability to advance is shaped by their deliberate choices and adherence to specific training regimens rather than being constrained by genetic limitations. To understand the variables influencing training responses, this text surveys the rich scholarly literature on both arguments. The conclusion reinforces the theory of genetic determinism as the more convincing rationale for the constraints recognized in training-induced performance gains.
Genetic Determinism
Muscle Fibers
According to the genetic determinism viewpoint, an athlete’s ability to compete is defined mainly by their genetic composition, which places intrinsic restrictions on how much they can improve through training. The makeup of muscle fibers is a critical component in this framework. The proportion of fast-twitch to slow-twitch muscle fibers is influenced by genetics, which affects an athlete’s capacity for power production and long-term endurance (Guilherme et al., 2020). A person with a higher ratio of slow-twitch fibers may run more slowly than someone with a higher proportion of fast-twitch fibers, while the latter may run longer and with greater endurance.
Metabolic Efficiency
Another essential factor influenced by genetics is metabolic efficiency. The ability of an athlete to effectively use oxygen and nutrients during exercise can be impacted by variations in genes linked to energy metabolism (Balberova et al., 2021). For instance, people genetically inclined to use oxygen efficiently may have greater endurance, whereas those less genetically predisposed may find it tough to sustain extended efforts.
Skeletal Structure
Genetics plays a powerful role in shaping an athlete’s skeletal structure, impacting biomechanics. A person’s joint structure and bone density determine how easily they can perform a specific motion and how easily they can be damaged. This means that an athlete’s general movement patterns, flexibility, and agility can all be influenced by genetic predispositions.
Response to Training
Furthermore, proponents of genetic determinism maintain that genetic variations influence a person’s response to training stimuli. For instance, due to innate variations in gene expression linked to muscle protein synthesis, neural adaptation, or recovery mechanisms, two athletes following the same training program may show distinct rates of strength or skill development (Furrer et al., 2023). This implies that, depending on their genetic predispositions, people may respond differently to different training interventions.
Neural Coordination and Adaptability
To further develop the genetic determinism stance, it is imperative to investigate the role of genetics in neurological variables that affect athletic performance. Genetic variations influence an individual’s neural coordination and adaptability. According to a pilot study by Tapajčiková et al. (2022), an athlete’s capacity to perform exact movements can be forced by the effectiveness of neural pathways and the speed of neural transmission. The rate at which an athlete acquires neuromuscular coordination can be influenced by genetic factors, which can affect abilities such as balance, agility, and reaction time.
Injury Vulnerability
Advocates of genetic determinism also highlight the role that genetic factors play in injury vulnerability beyond the immediate physiological aspects. Certain individuals may have inherited genetic predispositions that expand their susceptibility to particular injury types, such as stress fractures or strained ligaments (Appel et al., 2021). Furthermore, an athlete’s resilience and long-term durability in their chosen sport can be influenced by genetic factors that affect their ability to recover from injuries.
Aerobic Capacity
When one considers the impact of genetic polymorphisms linked to specific performance-related traits, the idea of individual responsiveness to training becomes even more complex. Differences in genes linked to aerobic capacity (e.g., the ACTN3 gene, which is associated with fast-twitch muscle fibers) may affect an athlete’s ability to perform endurance-based exercises (Baltazar‐Martins et al., 2020). Similarly, a person’s reaction to resistance training or high-intensity exercise may be influenced by genetic markers linked to muscle hypertrophy or lactate clearance.
Limitations of Training Influence
Crucially, the genetic determinism viewpoint does not discount the possibility of training-induced improvement. Rather, it highlights the possibility that genetic factors may impose inherent limitations on the extent of these improvements. An athlete can improve their performance, but there is disagreement in this discussion regarding how much they can overcome their genetic predispositions.
The genetic determinism position essentially examines the complex relationship between genetic factors and athletic performance. A person’s skeletal structure, muscle fiber composition, metabolic efficiency, and response to training are all influenced by their parents’ genetic makeup. Although training can certainly yield gains, proponents of genetic determinism contend that a genetic ceiling shapes an athlete’s potential.
Theory of Deliberate Practice
Origin
The theory of deliberate practice challenges the deterministic view of genetic factors by arguing that intentional, purposeful training can overcome perceived limitations in athletic performance. The philosophy behind the Theory of Deliberate Practice originates from the work of psychologist K. Anders Ericsson, specifically from his definition of deliberate practice in the context of expertise development (Rowland, 2018). Ericsson’s research has significantly shaped the discussion of skill acquisition and athletic performance.
Deliberate Practice
The theory of deliberate practice holds that people can actively improve their performance through targeted, strategic training, in contrast to the genetic determinism argument, which maintains that inherited traits fix performance. The fundamental idea of this theory is deliberate practice, best illustrated by athletes who carefully plan their training regimens to focus on specific areas of weakness and improve particular skills (Hambrick et al., 2020).
Role of Feedback
Furthermore, it is also necessary to get prompt, insightful feedback when engaging in intentional practice (Hambrick et al., 2020). Athletes can address their weaknesses and improve their skills in real time by adjusting their training using this feedback loop. To maximize their performance, a high jumper might carefully examine and improve their jumping technique, incorporating coaching feedback and using cutting-edge training techniques. The theory emphasizes the importance of conscious effort and choice in athletic development, a point further supported by this deliberate focus on improvement rather than passively relying on genetic predispositions.
Personal Agency
A key appeal of the theory of deliberate practice lies in its concept of personal agency, which holds that athletes are not helpless beneficiaries of their genetic predispositions. Athletes’ decisions about their training regimens, including which exercises to perform, how much to eat, and how to recover from injuries, are thought to be crucial in shaping the course of their performance (Ericsson, 2020). For instance, a weightlifter would actively choose to implement new lifting techniques, modify training volumes, and adjust rest intervals to push past perceived genetic limitations and achieve breakthroughs in strength and power.
Athletes are encouraged to try out various approaches and training plans, customizing them to their individual requirements and goals. A long-distance runner who may experiment with different training loads, running surfaces, and recuperation techniques to find the best mix for individual growth. This flexibility is in opposition to the genetic determinism viewpoint, which suggests a strict adherence to inherited constraints.
Summary
In conclusion, the theory of deliberate practice emphasizes intentional, flexible, and choice-driven training, providing a nuanced viewpoint on athletic performance. Deliberate practitioners take an active approach to improving, try out different training modalities, and claim control over their own athletic destiny. According to this theory, achieving excellence is a dynamic, responsive journey rather than a strictly genetic path, and overcoming perceived limitations depends largely on conscious decisions and deliberate effort.
Judgment
Usain Bolt
The argument between genetic determinism and the theory of deliberate practice is a nature-versus-nurture debate. I find that track and field is a great example of genetic determinism in action, as the success of some sprinters is ascribed to genetic predispositions for fast-twitch muscle fibers. I propose Usain Bolt, who is recognized as the fastest man in history, as an example; his genetic composition, which favors a higher proportion of fast-twitch muscle fibers, is responsible for his exceptional speed (Furrer et al., 2023). Even with an intense training program, a competitor without these genetic advantages would have a very difficult time matching Bolt’s raw speed.
Michael Phelps
Furthermore, an example supporting the genetic determinism theory in the swimming domain is the renowned Michael Phelps. Phelps’s exceptional achievements, as evidenced by an unprecedented number of gold medals at the Olympics, can be partly attributed to his distinct physical characteristics. His large wingspan and disproportionately long arms give him a biomechanical advantage, allowing him to move farther with each stroke (Ahlberg, 2022). This hereditary physical characteristic bestows a unique advantage that goes beyond instruction and conscious practice.
Eliud Kipchoge
The field of endurance sports provides an additional perspective on the genetic determinism debate. In addition to their exceptional training dedication, long-distance runners like Eliud Kipchoge exhibit a genetic predisposition for efficient energy utilization. Kipchoge’s genetic makeup influences physiological traits such as optimal biomechanics and high aerobic capacity, which support his remarkable marathon performances (Furrer et al., 2023). Essentially, these particular cases in the context of sports validate the theory of genetic determinism. In my opinion, while the theory of deliberate practice underscores the importance of effort and training, the undeniable impact of genetic factors cannot be ignored.
Conclusion
To synthesize the age-old debate between genetic determinism and the theory of deliberate practice, genetic determinism holds greater sway in explaining the limits of training responses. Given the extensive study of interactions between physiological and genetic variables, the case for genetic factors predetermining an individual’s performance potential seems stronger. The theory of deliberate practice emphasizes the importance of individual decisions in shaping training outcomes, yet the overwhelming body of research points to genetic determinism. Given the contributions made by both sides, it is clear that genetic factors are much more important and perhaps even more decisive when it comes to improving athletic performance than proponents of free will believe.
References
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Appel, M., Zentgraf, K., Krüger, K., & Alack, K. (2021). Effects of genetic variation on endurance performance, muscle strength, and injury susceptibility in sports: A systematic review. Frontiers in Physiology, 12.
Balberova, O. B., Bykov, E. V., Medvedev, G. V., Zhogina, M. A., Petrov, K. V., Petrova, M. M., Al-Zamil, M., Trefilova, V. V., Goncharova, P. S., & Shnayder, N. A. (2021). Candidate genes of regulation of skeletal muscle energy metabolism in athletes. Genes, 12(11).
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Furrer, R., Hawley, J. A., & Handschin, C. (2023). The molecular athlete: Exercise physiology from mechanisms to medals. Physiological Reviews, 103(3), 1693–1787.
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