Strong and Vital No 1

Repor tage

1. The requirement for coordination in training 2. The effect of the resistance curve in the exercise 3. Motivation to train with higher intensity

While all exercises demand a certain level of coordination, some are inherently riskier and require greater care and lower loading to ensure safety. For instance, the squat movement, while effective, poses risks with heavier loads. Conversely, a well-designed knee extension device offers a safe option, allowing for high-intensity training without risk. To encourage large populations to engage in high-intensity training, it is crucial to provide safe tools. Figure 2 illustrates how the need for coordi nation is inversely correlated with intensity.

Fig, 3 The relationship between need for coordination and safety

All exercises inherently involve variable resistance in relation to joint angle, either intentionally or inadvertently. However, many people are unaware of the ideal loading curve for each exercise. In a properly designed device, the loading curve aligns with the biomechanical strength curve of the joint. Unfortunately, this alignment is rarely achieved. Most exercises and devices offer an incorrect loading curve, resulting in discomfort during the exercise and, more importantly, ineffective training outcomes. Figure 3 illustrates two exercises: one correctly matching the strength curve and one incorrectly designed, such as a pulley system where the heaviest load is at the point where muscles are weakest.

Fig, 4 The difference between correct and incorrect loading curves

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STRONG and VITAL No. 1 - 2024