Ab workout: 7 exercises, a sample session and when abs show

• Frequency: two or three times a week, 10-15 minutes, at the end of a session or as a short block.
• Load: 8-15 reps or a 20-45 second hold, clean on every set. When it gets easy, slow down or make it harder rather than just doing more.
• Crunch, not sit-up: the full sit-up with anchored feet loads the hip flexors and the lower back; crunches and plank variations are more targeted.
• Visible abs: the muscle is needed, but body fat decides what you see. That takes a calorie deficit, protein and plenty of movement, not more crunches.

What do your abs do, and why are they more than a six-pack?

The abdominal wall has four muscle groups. The rectus abdominis gives you the “six-pack” and flexes the trunk forward. The external and internal obliques rotate and side-bend the trunk, and the deep transversus abdominis wraps around it like a corset.

The abs’ main job is stability rather than movement: in squats, deadlifts, overhead presses and rows they keep the spine neutral. That is why half of good ab training is resisting rather than bending: not letting the lower back sag or the trunk twist. This is called anti-extension and anti-rotation, and planks, dead bugs and the Pallof press are built for it.

Ab workout: 7 exercises, step by step

Pick four or five of these and rotate them every few weeks. Progress here also means making it harder: slower reps, longer holds, a longer lever, and finally added load.

1. Plank

Suggested: 3 × 20-45 seconds, 45-60 seconds rest

• Forearms under the shoulders, body in one line from head to heels.
• Ribs down, glutes tight; do not let the hips pike up or the lower back sag.
• Keep breathing, do not hold your breath.
• Easier: from the knees, or with hands on a bench.
• Harder: feet elevated, elbows set further forward (a longer lever), or a weight plate on your back.

2. Dead bug

Suggested: 3 × 8-10 reps per side

• On your back, arms to the ceiling, hips and knees at 90 degrees.
• Keep your lower back against the floor. If it lifts, make the movement smaller.
• Slowly extend the opposite arm and leg, then bring them back.
• Easier: legs only, arms stay up.
• Harder: a light dumbbell in each hand, or a band around your feet, with a slower tempo.

3. Crunch

Suggested: 3 × 12-20 reps

• On your back, knees bent, hands by your temples or on your chest (do not pull the neck).
• Only the shoulder blades leave the floor; the lower back stays down.
• Breathe out as you lift, pause briefly at the top, lower slowly.
• Easier: a smaller range, with your arms sliding along your thighs.
• Harder: a weight plate on your chest, or a kneeling cable crunch.

4. Lying leg raise

Suggested: 3 × 8-12 reps

• On your back with hands under or beside your hips.
• Keep the lower back on the floor: if it arches, do not lower the legs that far.
• Lower slowly over 2-3 seconds, because that is where most of the work happens.
• Easier: with bent knees, drawing them toward your chest.
• Harder: straight legs, stopping just above the floor.

5. Side plank

Suggested: 2-3 × 20-40 seconds per side

• Elbow under the shoulder, hips lifted, body in one line from head to feet.
• Do not lean forward or back, and do not let the hips sink.
• Top hand on the hip or reaching to the ceiling.
• Easier: with bent knees, the knees stay on the floor.
• Harder: lift the top leg, or lower and raise the hips repeatedly.

6. Pallof press with a band

Suggested: 3 × 8-12 reps per side, 2-second hold at the end

• Stand side-on to an anchored band (or cable), hands at your chest.
• Press your hands straight out and do not let the band rotate you.
• Hips and chest stay square throughout.
• Easier: a lighter band, standing closer to the anchor.
• Harder: a stronger band, standing further away, or half-kneeling.

7. Hanging knee raise

Suggested: 3 × 8-12 reps

• Hang from a bar with active shoulders (do not sag out of the shoulder joint).
• Bring the knees up to hip height without swinging, tilting the pelvis back slightly.
• Lower slowly, no swinging.
• Easier: on a captain’s chair (forearm support machine) or with lying leg raises.
• Harder: straight legs, or raise your feet to the bar if your control allows.

Sample ab session (12-15 minutes)

A few cat-camel reps and one easy plank are enough to warm up. Order: stabilising exercises first, dynamic ones after.

If you also train the big lifts (squat, deadlift, row), put abs at the end or in a short separate block: your trunk needs to be fresh for the heavy sets. When the circuit feels easy, extend the holds, slow the reps down or move to a harder variation over the following weeks.

How often should you train abs?

Two or three sessions a week is plenty, and you do not need to train them daily. Muscle gets stronger during rest, and there is no evidence that daily ab work works better. Six to ten hard sets a week aimed at the abs is enough, because your trunk also works hard in squats, deadlifts, rows and overhead presses.

In general, roughly ten or more sets per muscle group a week produced more muscle growth in pooled research (Schoenfeld and colleagues, 2017), but for the abs the big lifts already cover part of that. Beginners can start with two sessions of two or three exercises, and progress by making it harder rather than adding endless reps.

Common ab training mistakes

• Full sit-ups with anchored feet: the hip flexors and lower back do the work, the abs less. Crunches or dead bugs are far more targeted and kinder to your back.
• Pulling on the neck: you yank your head, the neck aches and the abs do little. Keep your eyes on the ceiling with a fist of space under the chin.
• Momentum: swinging leg raises and rushed reps. Slow, controlled reps count.
• Arching the lower back: in leg raises and planks the lumbar spine should not sag. If it does, shorten the range or pick an easier version.
• A thousand reps: if 30 reps feels easy, it asks for a harder exercise, not more reps.
• Abs without a deficit: if you want a leaner midsection, your diet and daily movement decide it, not ab training.

When do abs show? Body fat and the six-pack

Everyone has abs; what you see is decided by the fat layer on top. It is very individual at what body fat the abs show, but roughly 10-14% for men and 16-22% for women is where they start to appear. Lower is not necessarily better: at very low body fat sleep, mood and, for women, the menstrual cycle can suffer.

The body fat calculator estimates where you are with a tape measure. Fat comes off the whole body, not the stomach: in a six-week trial (Vispute and colleagues) regular ab training did not reduce abdominal fat more than in the control group. We cover the steps in how to lose belly fat and weight loss, step by step, and the calorie calculator gives you your target.

As you build muscle, the abs thicken too: with the big barbell and dumbbell lifts plus a few ab sessions a week, you get a more developed midsection over time, provided body fat is right as well. You need both, but not at the same speed.

What to eat with it

How your midsection looks is mostly decided on the plate, so fat loss and maintenance numbers both appear here. To lose fat you need a moderate deficit (about 15% below your needs) and plenty of protein so you keep your muscle and are not hungry.

Daily targets for a 30-year-old training 3-5 times a week (Mifflin-St Jeor, as in The Fit Chef app)

Example	Goal	kcal	Protein (g)	Carbs (g)	Fat (g)
Woman, 65 kg, 168 cm	Fat loss	1,830	117	212	57
Woman, 65 kg, 168 cm	Maintenance	2,150	117	270	67
Man, 80 kg, 180 cm	Fat loss	2,350	144	279	73
Man, 80 kg, 180 cm	Maintenance	2,760	144	353	86

Your own numbers come from the calorie calculator and the protein calculator. For people who train, the ISSN suggests 1.4-2.0 g of protein per kg of body weight a day; the high-protein foods chart and the weekly meal plan make it easy to actually hit it.

Recipes for before and after training

Per serving, calculated from the recipe data

Recipe	When	kcal	Protein (g)	Carbs (g)	Fat (g)	Time
Greek Yogurt Protein Bowl	before	352	41	29	10	5 min
Smoked Salmon Cottage Toast	before	339	31	36	7	5 min
Tilapia Fish Tacos	after	328	40	33	5	15 min
Ginger Cod with Pak Choi	after	398	43	41	6	20 min

Breakfast · 5 minGreek Yogurt Protein Bowl352 kcal41 g proteinBreakfast · 5 minSmoked Salmon Cottage Toast339 kcal31 g proteinDinner · 15 minTilapia Fish Tacos328 kcal40 g proteinDinner · 20 minGinger Cod with Pak Choi398 kcal43 g protein

These recipes keep you full on little fat and a lot of protein, which matters most in a deficit. Abs have no special food: calorie balance and daily protein are what count. More on timing and more recipes on the pre and post-workout meals page; creatine and protein powder have their own guides.