TRAINAQ

Chest exercise

Smith Machine Bench PressHow to do it, with form in numbers

Main muscles
Chest
Also works
Front delts, Triceps
Equipment
Smith, Bench
Level
Beginner
Our own 3D demo

How to do it

How do you do the Smith Machine Bench Press?

  1. Set the bench so the bar lowers to your nipple line.
  2. Lie back, feet flat, and grip slightly wider than shoulders.
  3. Twist the bar off the hooks and lower it slowly to your chest.
  4. Press straight up until your arms are nearly straight.

Cues

  • Bar lands on the nipple line
  • Elbows about 45° out
  • Shoulder blades stay pinned

Common mistakes

  • Bench too far forward or back; check where the bar lands first.
  • Flaring elbows out to 90°; keep them angled towards your hips.
  • Locking out hard and lifting shoulders; stop just short of lockout.

Form in detail

What does good form look like?

Starting position

Flat bench, about 45 cm high, placed square under the bar and slid so the bar's straight-down path lands on the nipple line / lower sternum; when lying down the forehead is roughly under the bar at the top (NFPT). Head, shoulder blades and buttocks on the bench; feet flat, a little wider than shoulder width. Shoulder blades pulled back and down; natural low-back curve. Overhand closed grip about 1.5 × biacromial width (hands about 60–65 cm apart) so the forearms are vertical at the bottom. Wrists straight.

The movement

The bar moves straight down and straight up along the rails, with zero horizontal drift. The arms hinge at the shoulders and elbows to follow it. Bar stays level. Torso, hips, head and feet stay still; shoulder blades stay pinned.

End position

(turnaround point): Bar lightly touching the chest at the nipple line, or 1–2 cm above. Upper arm about 50° from the torso (45–65°). Forearms vertical. Elbows just below the level of the bench top.

Tempo

Lower 2–3 s (NFPT), light touch with no bounce, press about 1.5–2 s, hold 0.3 s at the top.

Form in numbers

What are the angles and distances?

MeasureTargetGood rangeSources
Rail anglevertical (0°)0° (no tilt shown)
Bar touch pointnipple linelower to mid chest
Grip width1.5 × biacromial1.3–1.7 ×
Elbow angle at top (included)172°165–178°
Upper arm to torso at bottom50°45–65°
Elbow flexion at bottom95°85–100°
Bench height45 cm42–46 cm
Tempo down / up2.5 s / 1.75 s2–3 s / 1.5–2 s

The targets our 3D demo was built to, from the references below. Bodies differ, so treat the ranges as a guide for your own build.

For coaches

Use this demo in your clients’ programs

The Smith Machine Bench Press is in Trainaq’s exercise library. Add it to a workout, and your client sees this demo in the free Trainaq app above the sets they log.

Sources

Sources

  1. [NFPT: Flat Bench (Straight Bar)](
  2. [Saeterbakken et al. 2020, PLoS One (Europe PMC full text)](
  3. [Schick et al. 2010, J Strength Cond Res (Europe PMC abstract)](

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