Most of the power ought to be driven by your glutes rather then your arms. You should definitely maintain your core limited and also your back straight, and avoid depending on your arms to carry the kettlebell. The hip thrust also will involve much less loading on the backbone than https://econopass.com/health-and-fitness/fitness-zone/fitness-effective-workouts/10-effective-exercises-building-lifelong-core-strength-without-planks/