Core & HIIT · Bodyweight · Beginner

Iron Core 15-Minute Ab Sculpt Routine

A focused, evidence-based abdominal routine designed by strength coaches to hit the rectus abdominis, obliques, and transverse abdominis through flexion, anti-extension, and anti-rotation mechanics.

Duration 15 Min
Equipment Bodyweight
Targets Abs, Obliques, Hip Flexors
Level Beginner
Est. Burn ~150 kcal
Part of Multi-Day Plan

Core Fortress & HIIT Metabolic Burn Program

6-week structured training cycle with progressive overload and scheduled rest days.

Weekly Schedule:
Tue Express Tabata Blast Workout
Wed Active Recovery Rest Day
Sat Mobility & Stretch Rest Day
Sun Rest Rest Day
00:00 timer
Active Movement
1 of 4: 3/4 sit-up
Set 1 of 3
Calculated Burn
0 kcal
Live MET Estimation

Workout Routine Schedule (4 Movements)

Complete each movement in order. Tap the checkmark after each set to track your progress, or tap Swap to change equipment.

#1
3/4 sit-up form demonstration
3/4 Sit-Up
abs · body weight · 3 Sets × 15 - 20 reps · 30s rest
Form Tip: Curl the torso upward with a focused contraction, keeping the lower back anchored during the initial drive.
Set 1 15 - 20 reps
Set 2 15 - 20 reps
Set 3 15 - 20 reps
#2
front plank with twist form demonstration
Front Plank With Twist
abs · body weight · 3 Sets × 12 reps per side · 30s rest
Form Tip: Rotate the pelvis smoothly side to side in a controlled arc, feeling the obliques decelerate the movement.
Set 1 12 reps per side
Set 2 12 reps per side
Set 3 12 reps per side
#3
bodyweight incline side plank form demonstration
Bodyweight Incline Side Plank
abs · body weight · 3 Sets × 35 sec per side · 30s rest
Form Tip: Maintain a straight kinetic chain from ears down to heels, contracting the glutes for spinal support.
Set 1 35 sec per side
Set 2 35 sec per side
Set 3 35 sec per side
#4
kneeling plank tap shoulder (male) form demonstration
Kneeling Plank Tap Shoulder (male)
abs · body weight · 3 Sets × 20 taps · 30s rest
Form Tip: Brace as if expecting a punch to the stomach to keep the torso completely motionless during shoulder taps.
Set 1 20 taps
Set 2 20 taps
Set 3 20 taps

Coaching Tips & Progression Advice

  • Avoid pulling on the back of the neck; initiate every rep strictly from the abdominal wall.
  • Exhale fully on the contraction phase to maximize recruitment of the transverse abdominis.
  • Take minimal rest between movements to build muscular density and endurance.
Example Training Routine

Published by PlanWorkouts

An example session to adapt to your experience, equipment and recovery. Independent professional review is not claimed. Check the movement instructions before starting.

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Post-Workout Fuel

What to Eat After This Workout

Pair with a lean protein source and moderate hydration to support core recovery.

Browse Low-Carb Fit Meals →