Swimming is a full-body activity where your upper body, lower body, and core work in harmony. When we first learn to swim, especially as children, we tend to break down the strokes—arms, legs, and breathing—before we bring them all together in unison. This process, known as the “whole-part-whole” method, is effective for learning, but to achieve peak performance, these isolated movements need to be integrated into the complete action.
The Problem: Isolated Exercises Won’t Fully Improve Your Swim
In strength training for swimming, it’s essential to build strength across the whole body. While addressing individual weaknesses is important, focusing too much on isolated muscle groups without considering the whole body’s function can limit your progress. For example, improving shoulder strength is helpful, but if it’s not integrated with your core and lower body, you won’t fully benefit in the water.
To improve swimming performance, strength training must be approached with the entire body in mind, emphasizing coordination between muscle groups.
The ‘Sling System’ for Enhanced Performance
One of the most important mechanisms to understand in swimming strength training is the ‘sling system.’ This system involves opposing muscles that work together in a diagonal pattern, and it plays a vital role in swimming efficiency. The main sling involved in swimming is the Posterior Oblique Sling (POS), a muscular structure that includes the Gluteus Maximus, Latissimus Dorsi, and the Thoracolumbar Fascia.
When these muscles contract during movement, the tension that builds along the sling stabilizes the hip joint and improves energy transfer, enhancing the swimmer’s power. The POS is especially crucial in actions like the front crawl swim stroke, where rotational forces help propel the swimmer through the water. A strong POS stabilizes the pelvis and spine, allowing for more efficient swimming movements and better core control.
Why the Sling System Matters for Swimmers
The strength of your sling system directly impacts the efficiency of your swim stroke. If the Glutes or Lats are underperforming, it can lead to energy being diverted to less optimal muscles, such as the shoulders, lower back, or hamstrings. This not only slows you down but can also increase the risk of injury.
By training the sling system, you can ensure that the forces generated during swimming are used efficiently, reducing the strain on other muscles and preventing injury. A strong sling enhances body rotation control and core stabilization, allowing you to maintain better form and swim longer distances with less fatigue.
Training the Posterior Oblique Sling
To activate and strengthen the Posterior Oblique Sling, focus on exercises that require controlled movement and rotation. These exercises engage the sling’s muscles and improve the coordination needed for efficient swimming.
Here are a few key exercises to include in your routine:
1. Standing Pallof Press
Stand tall with a resistance band at chest height, holding it with both hands. Side on to the band, engage your core and press the band straight out, avoiding any rotational pull. Return the band to the chest and repeat. Perform 3 sets of 10 reps on each side.
2. Banded Wood Chop
Kneel side on to a resistance band and hold it with straight arms. Rotate your torso to bring the band across your body from a high to low position, focusing on using your shoulders, not your hips. Control the return and repeat. Do 3 sets of 10 reps on each side.
3. Plank with Leg and Arm Lift
In a front plank position, lift one foot off the ground while maintaining a stable body position. Once confident, add an arm lift on the opposite side. Alternate between 10-second lifts for 60 seconds to challenge stability.
Conclusion
By incorporating these exercises into your training, you’ll improve the coordination of your upper and lower body, leading to a more efficient swim stroke. Strengthening the sling system will not only help you swim faster but also reduce the risk of injury and improve overall performance in the water. Consistent practice and integration of these movements will lead to more powerful and controlled swimming for the long term.





