What Are Squats?
Squats are considered the most fundamental and effective strength exercise — not without reason called the "king of exercises". It is a multi-joint movement engaging over 200 muscles at once. Squats develop not only the legs but also the core, back, and hormonal system.
🎯 Primary Muscles
Quadriceps, gluteus maximus, adductors.
🔧 Secondary Muscles
Hamstrings, erector spinae, abs, calves.
⚡ Exercise Type
Multi-joint, compound exercise. Stimulates testosterone and growth hormone release.
📊 Difficulty Level
From beginner (bodyweight) to elite (with a barbell at 2x+ body weight).
📋 Proper Execution Technique
1
Starting Position: Stand with feet shoulder-width apart or slightly wider, toes turned slightly outward (5–15°). Back straight, chest up, shoulders back. Gaze straight ahead.
2
Inhale and brace the core: Take a deep breath into your belly (not your chest) and tense your abdominal muscles as if bracing for a punch. This is called the Valsalva maneuver — it stabilizes the spine.
3
Lowering: Begin the movement by bending the hips and knees at the same time — as if sitting down on an invisible chair. Weight should be through the heels and the outer part of the foot. Knees track in the direction of the toes.
4
Depth: Descend to at least parallel (thighs parallel to the floor), ideally below parallel. Heels stay on the ground at all times. The back remains neutral — neither overly arched nor rounded.
5
Ascent: From the bottom position, drive explosively through the heels, returning to the starting position. Knees must remain stable — do not let them cave in. Exhale only in the upper part of the phase or after the repetition.
6
Top position: Fully extend the hips but do not overextend them backward (no hyperextension). Squeeze the glutes at the top. Prepare for the next repetition.
💪 Which Muscles Work?
| Muscle Group | Muscle | Role |
|---|---|---|
| Thighs (Front) | Quadriceps: vastus lateralis, medialis, intermedius, rectus femoris | Primary mover — extends the knees |
| Glutes | Gluteus maximus muscle (gluteus maximus) | Extends the hips, especially below parallel |
| Thighs (back) | Hamstrings: biceps femoris, semitendinosus, semimembranosus | Stabilizes the knees, assists in hip extension |
| Adductors | Adductor magnus, longus, brevis | Stabilizes the legs, especially in a wide stance |
| Back | Erector spinae, multifidus | Stabilizes the spine throughout the movement |
| Torso | Rectus abdominis, obliques, transverse abdominis | Intra-abdominal pressure for spine protection |
⚠️ Most Common Mistakes
- Knees cave inward (valgus): The most dangerous mistake — the knees come together while rising. Solution: consciously push the knees outward, strengthen the glutes, use a resistance band around the knees.
- Heels lifting: The heels lift off the floor — weight shifts onto the toes. Indicates poor ankle mobility. Solution: ankle stretching exercises, heel wedges under the heels.
- Insufficient depth: "Quarter" or "half" squats. Only full range of motion (below parallel) provides full benefit. Solution: reduce the weight, increase the range of motion.
- Rounding the back: The lower back rounds. Extremely dangerous with a barbell. Cause — weak core or too much weight.
- Chest dropping: The torso leans too far forward. Solution: chest up, shoulders back, gaze forward or slightly upward.
- Too Fast Tempo: "Bouncing" at the bottom or an uncontrolled descent. Control the movement — 3 sec down, 1–2 sec up.
⚠️ Knee pain? If you feel pain in the front of the knee, the knees are most likely traveling too far forward or the weight is on the toes. Make sure the weight is through the heels and the shins remain as vertical as possible.
🔄 Most Popular Variations
| Variation | Description | Difficulty |
|---|---|---|
| Bodyweight | Squats with bodyweight only — the best start for learning technique. | Lightweight |
| Goblet (with a dumbbell) | A single dumbbell is held at the chest. An excellent option for learning to keep the torso vertical. | Lightweight |
| Front squat | The barbell rests on the front delts. It forces the torso to stay more vertical and places greater load on the quadriceps. | Intermediate |
| Classic (back squat) | The barbell rests on the upper back (trapezius). The classic strength variation. | Intermediate |
| Overhead | The barbell is held overhead with extended arms. The greatest demand on the core and shoulder mobility. | Hard |
| Pistol (single-leg) | A squat on one leg, with the other extended forward. Requires great balance and strength. | Hard |
| Bulgarian (split squat) | One leg on a bench behind you. A unilateral exercise that corrects imbalances. | Intermediate |
| Sumo squats | A very wide stance, toes turned out ~45°. Focus on the adductors and glutes. | Intermediate |
| Jump squats | Explosively jump upward from the bottom. Develops explosive power and burns calories. | Hard |
| Cossack squats | Deep lateral squat on one leg, the other extended. Develops hip mobility. | Intermediate |