Tibo InShape presents a kneeling cable or strap abdominal exercise for effective core strengthening, describing it as a novelty.

noli's read

Using a cable while kneeling to work the abdominal muscles is a highly effective strengthening method, although labeling this exercise as "new" is an exaggeration, as it is a classic variation of the cable crunch. An experimental study measuring neuromuscular activity (EMG) by Moraes et al. (2009) demonstrates that adding external resistance, such as that from a pulley, significantly increases the recruitment of the rectus abdominis and obliques compared to a traditional bodyweight crunch. Furthermore, a systematic review of the literature on trunk muscle activity (published in PMC in 2020) confirms that training with loads promotes good functional core strength development. However, presenting this movement without postural instructions has a drawback, as effectiveness depends on strict technique. The general consensus among strength and conditioning coaches is that spinal flexion (rather than simple hip flexion) is essential to engage the abdominals rather than the hip flexors. In conclusion, the exercise's value for the core is quite real, but its novelty is purely marketing.

the sources

1. 1Wang XQ, Zheng JJ, Yu ZW, et al. 2012