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core stability · advanced · mat
Side Jackknife
obliquesgluteus mediuslateral core strength
0.0s / 4.7s
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Obliques
15%
Gluteus Medius
10%
Trans. Abdominis
15%
Erector Spinae
10%
Trans. Abdominis 15% — deep, not shown on the figure
Sets
2
Reps
6 each side
Hold
1 sec at the top
Rest
60 sec
Master the side-lying trunk lift and hip abduction separately before combining them.