Exercise library · Quads

Quad exercises, and the job each one does

Almost every lower-body session in Train Smart opens with a knee-dominant lift. It is the most reliable way to load an athlete heavily and safely, and the quality it builds — force into the ground through an extending knee — is the one every running and jumping sport is built on.

Short answer

The quadriceps extend the knee, which makes them the muscle group that produces force on the way up out of a squat, a jump or a step — and, just as importantly, the group that absorbs it on the way down. Squat variants (back, front, goblet, box) build the force; split squats, lunges and step-ups build it one leg at a time; tempo and pause work builds the eccentric strength that landing demands.

Quad work is in every Train Smart sport program. What changes by sport is the emphasis: jumping sports bias toward explosive and reactive work, collision sports toward heavy bilateral strength.

What it does

What quad training is for in a sport program

Quads training — anatomy diagram showing the muscles worked: Quads. Front and back view.
Quads — 38 movements in the programs train them

Force production. Squat variants are the backbone of the lower-body program because they load the most muscle at once. Which variant appears depends on the sport and the block: a front squat biases the quad and the trunk, a box squat controls depth, a pause squat removes the bounce.

Force absorption. Tempo work — a three-second lowering phase — is in the program for a reason unrelated to how it feels. The eccentric side of the lift is the side that matches landing and deceleration, and it is deliberately prescribed at points in the block where the nervous-system cost of heavy lifting needs to come down without the training stopping.

One leg at a time. Split squats, Bulgarians, lunges and step-ups appear alongside the bilateral lifts rather than instead of them. A two-legged squat hides a side-to-side difference; a split squat does not.

The movements

38 quad movements in Train Smart

Every one of these is prescribed in at least one sport program, carries coaching cues written for the moment you are standing in front of it, and lists ranked alternatives. The sets, reps and load each is programmed at are on its own page.

Lower body

MovementWhy it is in the programAlso trains
Front SquatQuad and trunk strength in the upright posture sport actually loadsGlutes
Bulgarian Split SquatSingle-leg power + change of directionGlutes
Copenhagen Hold (long)Adductor strength at full length — groin strain is a top-three injury in every cutting sport, and this is the position it happens inGlutes
Back SquatBase strength to win the collisionGlutes
Broad JumpHorizontal shot power on the double-legGlutes · Shoulders
Goblet Cossack Squat — deep holdAdductor and hip length under load, held in the deepest position — the shape a cut or a lunge actually asks forGlutes
Goblet SquatBase leg strengthGlutes
Hang Power CleanTriple extension = sprint accelerationGlutes · Shoulders
Hang Power SnatchThe fastest lift in the gym — trains rate of force development directlyGlutes · Shoulders
Box JumpVertical power for marking + ruck tapsGlutes · Shoulders
Deep Goblet Squat HoldLoaded end-range hip, knee and ankle at once — the bottom position, held long enough to change itGlutes
Lateral BoundChange-of-direction powerGlutes · Shoulders
Lateral Bound → StickControlled change of directionGlutes · Shoulders
Loaded Adductor Frog HoldDeep abduction and adductor length held long enough to change it — the base position for guard work, low blocks and wide basesGlutes
Power CleanWhole-body explosive powerGlutes · Shoulders
Reverse Nordic — hold at lengthQuad and hip-flexor length under load — the other half of the Nordic, and the range a sprinter runs out of first
Sissy Squat — bottom holdLoads the quad and the knee in full flexion — the position a deep landing, a lunge for a ball or a low turn puts it in
Adductor Slide-Out — eccentricThe groin taken out to length under its own control — the exact mechanism of a reaching tackle or an overstretched strideGlutes
Barbell Back SquatBase lower-body strength — bowling drive + batting stanceGlutes
Countermovement JumpBuilds the jump height behind leaps + grand jetésGlutes · Shoulders
Depth Drop → ReboundReactive power off the floorGlutes · Shoulders
Depth Drop → StickDeceleration + ACL-safe landingGlutes · Shoulders
Drop Landing → StickTrains the safe landing that prevents ACL tearsGlutes · Shoulders
Overhead Squat HoldAnkle, hip and shoulder range in one chain, held long enough to expose and then change the limiting oneGlutes
Pause Squat JumpConcentric-only jump — pure starting strengthGlutes
Single-Leg Hop → StickSingle-leg landing control on the catchGlutes · Shoulders
Spanish Squat — long isometricA long knee-extensor isometric, the first-line loading for a sore patellar tendon and the cheapest jumper's-knee insurance there isGlutes
Split Jump → StickTrains the soft, controlled landing that protects ankles + kneesGlutes · Shoulders
SprintTop-end speed — the most athletic quality there isGlutes
Squat JumpExplosive leg power for jumping + sprintingGlutes
Tuck JumpReactive power + fast feetGlutes · Shoulders
Vertical Jump → StickTriple-extension power that feeds punch forceGlutes · Shoulders

Full body and explosive

MovementWhy it is in the programAlso trains
Loaded 90/90 — hold each sideInternal and external hip rotation held at end range — the range that runs out first in cutting sportsGlutes
KB Windmill — bottom holdHip hinge, thoracic rotation and an overhead shoulder held in one shapeGlutes
MB Rotational SlamThe hip rotation behind a heavy cross + hookGlutes · Shoulders
Med Ball Overhead SlamFull-body extension into the ground, and it stays honest under fatigueGlutes · Shoulders
Slow Eccentric Step-DownEccentric knee control on one leg — the quality that decides whether a landing or a deceleration is absorbed or survivedGlutes
Weighted Couch StretchThe hip flexor and quad at full length, loaded, which is where a long season leaves them shortestCalves
This is general information, not medical advice. Train Smart gives training and nutrition guidance for healthy adults. It is not a substitute for a doctor, physiotherapist or accredited dietitian. If you have an injury, a medical condition, or you are unsure whether an exercise is right for you, get it checked first. Every recommendation on this site is sourced.
By sport

Which programs lean on the quads hardest

Counted from the movements above — how many of them appear in each sport's own sessions. It is a measure of emphasis, not of importance.

Measuring it

The tests that reflect quad training

Train Smart re-runs a five-test battery every eight weeks and re-prices your training weights from the results. These are the tests in it that this work moves.

Protocols and benchmarks for every test →

FAQ

Quads training questions

How many quad exercises should be in a week?
Train Smart does not prescribe a fixed number. Quads work is distributed across the sessions that suit it, and the total moves with the block — three building weeks then a deload — and with the season, which cuts set volume roughly 30% once competition starts. What stays constant is that the pattern appears every week rather than being cut when a session runs short.
What weight should I use for quad exercises?
Every working set in Train Smart carries an actual number in kilograms, calculated from your own last top set on that movement and the week you are in within your four-week block. That is the point of the app: the sets and reps on this page are the authored starting point, not the load you would be given.
Can I swap one of these quad exercises out?
Yes — every movement page lists ranked alternatives matched by movement pattern and body region, each with the reason it is a fair substitute. In the app the swap happens automatically when you tell it what equipment you have.

Quads work, in a program that knows where it goes

Train Smart puts these movements in the right session, at the right point in your four-week block, at a weight calculated from your own last top set — and swaps them automatically if you do not have the kit.

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