By Connor Sinclair
•
27 Apr, 2024
The Broad Jump: A Key Element in the Soldier Conditioning Review and the utilisation of the Kettlebell Swing for performance. The broad jump is a pivotal component of the Soldier Conditioning Review (SCR) of the British Army, underscoring its utility as an effective tool for assessing lower limb power. Its adoption beyond the British Army, notably in rigorous testing protocols like the NFL combine, is a testament to its effectiveness. The NFL Combine, renowned for featuring some of the most powerful athletes as evidenced by their performance, also incorporates the broad jump in its evaluations. What sets the broad jump apart is the distance achieved and the technique employed throughout the jump, particularly during the descent. Mastery of the descent—owning it—is crucial. The quality of the takeoff, regardless of its impressiveness, is negated if the landing is poorly executed. A proper landing technique is essential for dissipating force efficiently. This involves landing in a semi-squat position with bent knees, allowing the hips to sink back. Such a posture ensures the force is absorbed effectively, preventing the momentum from propelling the body forward, which could result in a stumble and a failed attempt. Moreover, it's critical that the knees align directly over the ankles upon landing, without collapsing inward. This alignment prevents undue stress on the joints and tendons, safeguarding against injury. Observing athletes frequently falter in this aspect, I emphasize the importance of a controlled, semi-squat landing as a reliable method to secure a successful jump. The broad jump is more than a measure of lower limb power; it offers comprehensive insights into an athlete's technique, control, and physical preparedness. Emphasising the technique of the descent as much as the takeoff can significantly enhance performance and prevent injuries, making it a fundamental aspect of training for the broad jump. For athletes aiming to elevate their jumping prowess, mastering the kettlebell swing is indispensable. Despite the ubiquity of kettlebells in gyms and their proven efficacy, skepticism remains among some athletes and coaches. Traditional exercises like squats, deadlifts, and plyometrics are undeniably beneficial, yet kettlebell swings offer unique advantages that warrant their inclusion in any comprehensive training regimen. Here's why the kettlebell swing stands out as an exceptional exercise for athletes: Fast-TWITCH MUSCLE FIBER ACTIVATION: The kettlebell swing is particularly effective at engaging fast-twitch muscle fibers, crucial for explosive movements like jumping. Biomechanical Relevance: The exercise boasts a high biomechanical transfer to jumping, enhancing leaping ability through its dynamic hip extension movement. Hip Overload: When executed correctly, kettlebell swings provide significant overload to the hips, a key factor in developing power for jumps. Grip Strength: Beyond its benefits to jumping, the swing also builds outstanding grip strength, an often-overlooked aspect of athletic performance. Posterior Chain Development: The kettlebell swing targets the glutes, hamstrings, and the entire posterior chain—areas frequently identified as weak links in many training programs. Regular practice of this movement leads to noticeable improvements. Eccentric Loading: It offers strong eccentric loading of the posterior chain, vital for muscle strength and resilience. Back Protection and Strengthening: Kettlebell swings also protect and strengthen the back, contributing to overall athletic durability. Accessibility and Safety: Kettlebell swings are straightforward to learn, minimizing the risk of injury and ensuring a low "stupidity factor." The secret to leveraging kettlebells effectively lies in their application to generate force. Specifically, when executing swings or snatches, the goal is to actively drive the kettlebell downward. This technique amplifies the force produced, pivotal for those aiming to enhance strength or speed. Achieving this requires the recruitment of the largest motor units within our muscles. There are two primary ways to engage these units: by lifting heavy weights or moving weights with high velocity. Interestingly, our spinal cord houses regulators known as Renshaw cells, which play a crucial role in this process. They selectively activate the largest and quickest motor units while inhibiting the smaller, slower ones. Thus, to boost power, training must focus on either high force or high velocity. Traditional powerlifting addresses the high force aspect effectively, but when it comes to high velocity, kettlebell exercises, particularly swings, excel. Kettlebell swings, categorized under low inertia training, optimize kinetic energy and engage involuntary muscle responses, such as the stretch-shortening cycle—a key component in plyometric training—to a greater extent than traditional heavy weightlifting. While heavy lifting remains a vital part of training, I advocate for the inclusion of kettlebell swings for their plyometric qualities. This preference stems from the unique ability of kettlebell swings to achieve higher hip joint velocity through actively accelerated ballistics, where the weight is propelled downward faster than gravity's pull. Moreover, the kettlebell swing stands out for its safety and ease of learning. Success hinges on mastering a few critical coaching points, making it an accessible yet powerful tool in any athlete's training regimen. On my power development days, I strategically incorporate kettlebell swings to leverage the benefits of Post-Activation Potentiation (PAP). This phenomenon boosts muscle performance after engaging in high-intensity exercise. The dynamic and explosive nature of kettlebell swings primes the nervous system and enhances muscle recruitment, setting the stage for improved performance in explosive movements, such as jumping. Following a series of swings, I often proceed with a double jump. This not only capitalizes on the PAP effect but also intensifies the plyometric training by focusing on the precision of the final jump's landing. Thus, the kettlebell swing serves a dual purpose: it provides a PAP effect that enhances subsequent jumps and delivers the comprehensive benefits discussed earlier in this blog. If faced with the decision to choose only one exercise to practice for the rest of my life, my unequivocal choice would be the kettlebell swing. This preference is grounded in its exceptional ability to foster power development, enhance the posterior chain, and engage a significant number of motor units simultaneously. Its simplicity belies its effectiveness, allowing for safe execution with minimal instruction. Most notably, it induces a "what the hell" effect— an unexpected improvement in various physical capacities without directly training those areas. While a comprehensive program ideally incorporates both kettlebell swings and traditional weightlifting, for those seeking a straightforward exercise to boost their broad jump, the kettlebell swing is unparalleled. It complements plyometric training perfectly, but I would emphasize the importance of mastering deceleration and achieving a solid landing. If you have any questions about broad jumps, please feel free to contact us.