Tutorial: Jack knife Tutorial: Jack knife
Centr Team
12 Jun 2023
Jack knife
Target: Core, (rectus abdominis), hip flexors, back
Modification – Bent-knee v-sit:
- To reduce the intensity, place your hands behind you and tuck the knees.
Centr Team
12 Jun 2023
Target: Core, (rectus abdominis), hip flexors, back
Modification – Bent-knee v-sit:
