Resisted Sit-Up (TRX / Suspension Trainer)

Level
intermediate
Force
push
Mechanic
isolation
Equipment
trx
Category
strength
Primary Muscles
Secondary Muscles

An abdominal exercise where the body is suspended in TRX straps and performs a sit-up motion with additional resistance from the handle position.

Instructions

  1. Sit facing the anchor point with feet under the anchor and knees bent at approximately 90 degrees
  2. Hold the TRX handles at chest height with arms bent
  3. Lean back slightly, creating tension in the straps
  4. Use your abdominals to sit up, bringing your chest toward your thighs
  5. At the top position, press the handles forward with your chest
  6. Return to the starting position with control
  7. Complete the prescribed reps

Tips

  • The TRX adds an element of instability and increased challenge
  • Focus on core strength rather than relying on hip flexors
  • Keep tension in the straps throughout the movement
  • The chest press at the top engages your chest and anterior core
  • Exhale as you sit up and press, inhale as you return
  • This movement builds core strength and chest activation

Recommended starting values

Sensible novice starting points for each goal, for a lifter aged 25–40. Scale down for smaller frames or older lifters. Treat the first set of any session as a discovery set.

Goal Sets Reps
Gain strength 3 15 reps
Build muscle 3 18 reps
Build endurance 3 25 reps

Alternatives

Exercises that target the same muscles with the same force and mechanic.

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