Workout Labs Fit
Home Calendar My workouts Library Fit
Warm-up of 00:00
Workout of 8 00:00
Cooldown of 00:00
Begin workout Resume Start over Save and Customize

At Home Intermediate Rep-Based Core Workout

39 min
 · 
8 exercises

Go all out on that core with this at-home intermediate rep-based ab and core workout — no equipment needed! Expect higher reps, fresh exercises, and shorter rest periods than usual. Your core will be absolutely on fire — but so will you. Get it done!

Seated Lumbar Rotations exercise illustration
Seated Lumbar Rotations
1 sets
20 reps
🔥 Warm-up exercise 1: Perform 10 reps to the left and 10 slow reps to the right!
0:15 rest
Hip Circles exercise illustration
Hip Circles
1 sets
30 reps
🔥 Warm-up exercise 2: Perform 15 reps clockwise and then 15 reps counter-clockwise.
0:15 rest
Plank Reaches exercise illustration
Plank Reaches
1 sets
20 reps
🔥 Warm-up exercise 3: Perform 20 reps at about 2 seconds per rep!
2:00 rest
Weighted Russian Twists exercise illustration
Weighted Russian Twists
3 sets
34 reps
75 sec rest
💪 Working exercise 1: Use a weight that allows you to complete 34 total reps non stop! All-out core! 🔥
2:00 rest
Medicine Ball V-Ups exercise illustration
Medicine Ball V-Ups
3 sets
18 reps
75 sec rest
💪 Working exercise 2: 2 more reps added! Use the same weight as last week here.
1:00 rest
Plank Jacks exercise illustration
Plank Jacks
3 sets
30 secs
60 sec rest
💪 Working exercise 3: Aim to jump every 2 seconds, keeping that core nice and strong.
1:00 rest
Reverse Plank Kicks exercise illustration
Reverse Plank Kicks
3 sets
30 secs
60 sec rest
💪 Working exercise 4: Aim for at least 20 reps in 30 seconds!
1:00 rest
Bicycles exercise illustration
Bicycles
1 sets
50 reps
💦 Working Finisher: Complete these as fast as you can!

About this workout

At Home Intermediate Rep-Based Core Workout is a free 39 min workout plan with 8 illustrated exercises for your core, lower back, abs and legs. Follow the workout online, save it to your WorkoutLabs Fit account or download it as a printable PDF.

Tap any exercise in the workout to see the muscles worked, clear exercise illustrations and step-by-step instructions. Each workout includes sets, reps, rest times and notes so you can follow the plan without guessing.

Workout details

  • Duration: 39 min
  • Exercises: 8
  • Training focus: Core, lower back, abs and legs
  • Equipment: NO EQUIPMENT
  • Level: Intermediate
  • Format: Interactive workout and printable PDF

For more ready-made training plans, try WorkoutLabs Fit. You can follow visual workouts, build your own routines, manage your training calendar and track your progress. Sign up today to claim your free week.

Questions about this workout

What equipment do I need for this workout?

No equipment is needed – every exercise in this workout uses your own bodyweight, so you can do it at home or anywhere.

How long does the At Home Intermediate Rep-Based Core Workout take?

The full workout takes about 39 minutes, covering 8 exercises with prescribed sets, reps and rest periods. Using the built-in timers and auto-advance keeps you on pace from start to finish.

Is this workout suitable for my fitness level?

This is an intermediate workout, best suited to people with some training experience. Beginners can still follow it by reducing the weight, doing fewer sets or resting longer between sets – each exercise includes illustrated form instructions.

What muscles does this workout target?

This routine primarily works your lower back, glutes & hip flexors, abs, obliques. Tap any exercise in the workout to see a muscle diagram showing exactly which primary and secondary muscles it activates.

How often should I do this workout?

For gain muscle, get toned, aim to do this workout 2–3 times per week with at least one rest day between sessions. Progress by gradually adding weight or reps, and pair it with workouts for other muscle groups during the week.

Can I download or save this workout?

Yes – you can download this workout as a free printable PDF using the download button, or save it to a free WorkoutLabs Fit account to follow it on your phone, customize the exercises and track your progress.

At Home Intermediate Rep-Based Core Workout
39 min
 · 
8 exercises
Go all out on that core with this at-home intermediate rep-based ab and core workout — no equipment needed! Expect higher reps, fresh exercises, and shorter rest periods than usual. Your core will be absolutely on fire — but so will you. Get it done!
Auto-advance Start exercises automatically
after a 5-second delay
Start workout Cancel workout
Seated Lumbar Rotations
Seated Lumbar Rotations exercise illustration
1 sets
20 reps
Set 1 of 1
Rest before next set
Get ready
321GO
🔥 Warm-up exercise 1: Perform 10 reps to the left and 10 slow reps to the right!
Primary muscle group(s):
Lower Back
Secondary:
Abs
  1. Seat yourself on a solid chair, with your back straight and unsupported. Keep your feet firmly planted on the ground at a comfortable width.
  2. Place your hands on your upper chest, crossed at the wrists.
  3. When ready, turn your body to one side while keeping your glutes in full contact with the chair, maintain an upright posture.
  4. Twist your body until you feel a light stretch in your lower back, hold, and then return to the starting position.

Do not over twist here, aim for a light stretch only

Rest
0:00
next up
Hip Circles
Next
Hip Circles
Hip Circles exercise illustration
1 sets
30 reps
Set 1 of 1
Rest before next set
Get ready
321GO
🔥 Warm-up exercise 2: Perform 15 reps clockwise and then 15 reps counter-clockwise.
Primary muscle group(s):
Glutes & Hip Flexors
Secondary:
Abs
  1. Stand tall with your chest up. Move your feet to shoulder-width apart. Place your hands on your hips.
  2. Begin the movement by shifting your hips to the left. Bring them forward and to the right in a circular motion. From the right, shift your hips back and to the left.
  3. Continue in this circular motion. Stop once to switch directions.
Rest
0:00
next up
Plank Reaches
Next
Plank Reaches
Plank Reaches exercise illustration
1 sets
20 reps
Set 1 of 1
Rest before next set
Get ready
321GO
🔥 Warm-up exercise 3: Perform 20 reps at about 2 seconds per rep!
Primary muscle group(s):
Abs, Lower Back
Secondary:
Shoulders
  1. Get into a face-down position on the floor supporting your upper body on your forearms. Your elbows should be bent at 90 degrees.
  2. Extend your legs straight out behind you, supporting yourself on your toes and balls of your feet.
  3. Keep your body in a straight line by tightening your abdominal and oblique muscles.
  4. When feeling secure, slowly lift one forearm off the floor while transferring the weight to your grounded forearm.
  5. Straighten the now-elevated arm out in front of you, reaching forward with your fingertips.
  6. Bring the elevated arm back in and to the floor, redistribute your weight, and repeat on the other side.
Rest
0:00
next up
Weighted Russian Twists
Next
Weighted Russian Twists
Weighted Russian Twists exercise illustration
3 sets
34 reps
75 sec rest
Set 1 of 3
Rest before next set
Get ready
321GO
💪 Working exercise 1: Use a weight that allows you to complete 34 total reps non stop! All-out core! 🔥
Primary muscle group(s):
Abs, Obliques
Secondary:
Biceps, Forearms, Lower Back
  1. Sit on an exercise mat with your legs fully extended and your upper body upright.
  2. Grip a weight plate between both hands.
  3. Hold the plate out in front of your abdominals keeping your arms bent slightly.
  4. Cross your your ankles and raise them off the floor slightly.
  5. Bend your knees towards you slightly.
  6. Lean back about 15 degrees to balance your body. This is the start position.
  7. In a smooth motion,turn your torso to the left and touch the plate on the floor. Make sure you exhale as you do this.
  8. Return to the start position inhaling as you do so.
  9. Repeat the same movement, this time to your right side, again exhaling as you do so.
  10. Return to start position and repeat.

When performing this exercise, use smooth controlled movements. Jerking or using momentum to swing the weight can cause serious lower back injury.

Primary muscle group(s):
Abs, Obliques
Secondary:
Glutes & Hip Flexors, Quadriceps
  1. Lie flat on an exercise mat on the floor keeping your lower back straight with no arching of your spine and with your knees bent and feet flat on the floor.
  2. Place your hands lightly on the sides of your head.
  3. Curl your torso upwards so your shoulders are slightly raised off the floor..
  4. Raise your knees until your thighs are at a right angle to the floor and your calves are parallel to the floor. This is the start position.
  5. Slowly move your legs in a pedaling action as if you are riding a bicycle.
  6. As you do so, exhale and bring your opposing elbow close to each knee by crunching to one side. Left elbow to right knee. Right elbow to left knee.
  7. After each crunch, return to the start position inhaling as you do so.
  8. Without pausing, repeat the movement to the other side.
  9. Repeat without pausing for the desired number of repetitions to each side.

Do not use your hands to pull your head and neck up during this exercise. Doing so may cause injury. Concentrate on a slow rhythmic cycle from side to side with perfect form for each repetition.

Rest
0:00
next up
Medicine Ball V-Ups
Next
Medicine Ball V-Ups
Medicine Ball V-Ups exercise illustration
3 sets
18 reps
75 sec rest
Set 1 of 3
Rest before next set
Get ready
321GO
💪 Working exercise 2: 2 more reps added! Use the same weight as last week here.
Primary muscle group(s):
Abs
Secondary:
Glutes & Hip Flexors
  1. Lie face up on with a medicine ball between your hands and your arms extended behind you. Keep your arms and legs straight and then raise your feet an inch off the floor.
  2. Raise your torso and legs up at the same time and touch the medicine call to your feet. Hold for a moment.
  3. Lower down to starting position with arms and ball behind your head.
Primary muscle group(s):
Abs
  1. Position yourself on a decline bench so that your feet are secured by the pads. Lay back and place your arms across your chest or behind your head.
  2. Begin the movement by pulling yourself up by your abdominals. Do not force yourself up by pulling on your neck. Let your abs do all the work.
  3. Once at the top, slowly lower yourself back down. Again, focus on the abs doing all of the work. Repeat by bringing yourself back up.
Primary muscle group(s):
Abs
  1. Lie flat on your back with your feet flat on the ground, with your knees bent at 90 degrees. Alternatively, you can place your feet up on a bench a few inches apart with your toes turned inwards and touching.
  2. Hold a plate, dumbbell, kettlebell, or medicine ball securely above your head.
  3. Keep your elbows locked.
  4. Push your back down flat into the floor to isolate your abdominal muscles.
  5. Gently curl your shoulders forward and up off the floor.
  6. Continue to push down into the floor with your lower back.
  7. Raise your shoulders about four to six inches only.
  8. Hold and squeeze your abdominal muscles for a count of one.
  9. Return to the start position in a smooth movement.

Make sure the weight is held very securely!

Primary muscle group(s):
Abs
  1. Lie flat on your back with your feet flat on the ground, with your knees bent at 90 degrees. Alternatively, you can place your feet up on a bench a few inches apart with your toes turned inwards and touching.
  2. Place your hands lightly on either side of your head.
  3. Keep your elbows in  so that they are parallel to your body.
  4. Push your back down flat into the floor to isolate your abdominal muscles.
  5. Gently curl your shoulders forward and up off the floor.
  6. Continue to push down into the floor with your lower back.
  7. Raise your shoulders about four to six inches only.
  8. Hold and squeeze your abdominal muscles for a count of one.
  9. Return to the start position in a smooth movement.
Rest
0:00
next up
Plank Jacks
Next
Plank Jacks
Plank Jacks exercise illustration
3 sets
30 secs
60 sec rest
Set 1 of 3
Rest before next set
Get ready
321GO
💪 Working exercise 3: Aim to jump every 2 seconds, keeping that core nice and strong.
Primary muscle group(s):
Abs, Glutes & Hip Flexors
Secondary:
Lower Back
  1. Get into a push­up position with hands under shoulders and body straight from head to toes.
  2. Engage your core and bend your elbows, keeping them in towards the body.
  3. Lower your body towards the floor.
  4. Straighten your arms and quickly jump the feet forward to outside of the hands.
  5. Jump back to starting position.
Primary muscle group(s):
Abs
Secondary:
Glutes & Hip Flexors
  1. Lie on a mat and position yourself in a plank position. Place your elbows on the floor beneath your shoulders. Your toes should touch the floor and your torso should be lifted in a straight line.
  2. Engage your core muscles and lift one foot off the floor. Keep the rest of your body as still as you can. Your heel should lift until it is in line with your buttocks.
  3. Slowly lower the leg to the starting position and repeat with the other leg.
Primary muscle group(s):
Abs
  1. Get into a face down position on the floor supporting your upper body on your forearms. Your elbows should be bent at 90 degrees.
  2. Extend your legs straight out behind you, supporting them on your toes and balls of your feet.
  3. Keep your body in a straight line by tightening your abdominal and oblique muscles.
  4. Hold for as long as possible.

For extra balance training and core strengthening, you can lift one arm or leg.

Rest
0:00
next up
Reverse Plank Kicks
Next
Reverse Plank Kicks
Reverse Plank Kicks exercise illustration
3 sets
30 secs
60 sec rest
Set 1 of 3
Rest before next set
Get ready
321GO
💪 Working exercise 4: Aim for at least 20 reps in 30 seconds!
Primary muscle group(s):
Abs
Secondary:
Obliques, Shoulders
  1. Place your hands on the floor with your fingertips pointing towards your lower body and place your feet together.  
  2. Elevate your body engaging your core muscles to hold yourself steady.
  3. Contract your lower abdominal muscles and lift your right leg off the ground to around a 45-degree angle.
  4. Lower your right leg back down to the ground before repeating the movement for your left leg.
Primary muscle group(s):
Abs
Secondary:
Lower Back
  1. Lie on your back on a mat with hands under your lower buttocks on either side to support your pelvis.
  2. Legs straight out in front of you, ankles together and feet slightly off the floor.
  3. Keep your knees straight and raise your legs by flexing the hips until they are completely flexed.
  4. Return to starting position.
Primary muscle group(s):
Abs
Secondary:
Glutes & Hip Flexors
  1. Lie on a mat with your hands under your buttocks and raise your legs slightly, keeping knees straight and ankles together.
  2. Keep abs engaged and perform short kicks in an alternating fashion.
  3. Repeat as needed and then lower legs to the ground.
Rest
0:00
next up
Bicycles
Next
Bicycles
Bicycles exercise illustration
1 sets
50 reps
Set 1 of 1
Rest before next set
Get ready
321GO
💦 Working Finisher: Complete these as fast as you can!
Primary muscle group(s):
Abs, Obliques
Secondary:
Glutes & Hip Flexors, Quadriceps
  1. Lie flat on an exercise mat on the floor keeping your lower back straight with no arching of your spine and with your knees bent and feet flat on the floor.
  2. Place your hands lightly on the sides of your head.
  3. Curl your torso upwards so your shoulders are slightly raised off the floor..
  4. Raise your knees until your thighs are at a right angle to the floor and your calves are parallel to the floor. This is the start position.
  5. Slowly move your legs in a pedaling action as if you are riding a bicycle.
  6. As you do so, exhale and bring your opposing elbow close to each knee by crunching to one side. Left elbow to right knee. Right elbow to left knee.
  7. After each crunch, return to the start position inhaling as you do so.
  8. Without pausing, repeat the movement to the other side.
  9. Repeat without pausing for the desired number of repetitions to each side.

Do not use your hands to pull your head and neck up during this exercise. Doing so may cause injury. Concentrate on a slow rhythmic cycle from side to side with perfect form for each repetition.

Primary muscle group(s):
Abs
  1. Lie on your back. Bring your knees up to a 90-degree angle. Shins should be parallel to the floor. Place your hands behind your head and bring your shoulders off the ground.
  2. Exhale and contract your abdominals. Bring your head towards your knees while moving your knees toward your chest.
  3. Pause and return to the starting position.
Primary muscle group(s):
Obliques
Secondary:
Abs
  1. Lie on an exercise mat, with your back flat, knees bent and your feet flat on the floor slightly wider than shoulder-width apart.
  2. Fully extend your arms down the side of your body, palms facing in. This is the start position.
  3. Exhaling, crunch your torso forward and to the right until you can touch your right heel with your right hand. Hold for a count of one.
  4. Return to the starting position smooth motion, inhaling as you do so.
  5. Repeat the movement, this time to your left side.
  6. When you have completed the movement on both sides, you have done one repetition.
  7. Repeat.
Primary muscle group(s):
Abs
Secondary:
Glutes & Hip Flexors
  1. Lie on a mat with your hands under your buttocks and raise your legs slightly, keeping knees straight and ankles together.
  2. Keep abs engaged and perform short kicks in an alternating fashion.
  3. Repeat as needed and then lower legs to the ground.
Workout done!
Exercises done
of 8
Total time
Access 1000+ more workouts, build your own plans and track progress with Fit
Start my free week
Free 7-day trial • No charge today
Add to
  • Mon, Jul 6
You can switch gender of illustrations here
Got it
Save, edit and schedule this workout with Fit
Card saved • No charge today
Delete forever?
Yep, toss it!