Protocol Library → Climbing-Specific Conditioning → TRX Body Saws

TRX Body Saws

Suspended Anti-Extension Trunk Exercise

Primary Goal

Develop the ability to maintain trunk and pelvic control during controlled suspended movement
PROTOCOL OVERVIEW
Climbing-Specific Conditioning
System
Strength / Motor Control
Target
Trunk stability, anti-extension control and coordinated shoulder–pelvis positioning
Tempo
4 s per repetition
Duration
~2–10 min

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When

Use TRX Body Saws as supplementary trunk training within a climbing-focused programme.

  • After climbing, when you can still maintain good movement control

  • Within a gym strength and conditioning session

  • During training phases focused on trunk control and body tension

This is a loaded trunk exercise, not a relaxation drill. Adjust its placement and volume to your assigned programme.

Preparation

If you are not already warmed up from climbing or gym training, begin with gentle shoulder movement and a brief, comfortable forearm plank. Then perform a few short-range body-saw repetitions to check your control before starting the working sets.

Starting position

  • Secure the suspension trainer to a suitable anchor and check the straps.

  • Place your feet in the foot cradles.

  • Assume a forearm plank with your elbows beneath your shoulders.

  • Establish a straight body line, keeping your ribs and pelvis controlled.

  • Lightly engage your glutes and brace your trunk before moving.

Execution

  • Slowly move your body backward, allowing your shoulders to travel behind your elbows.

  • Maintain your trunk position without letting your lower back sag.

  • Return to the starting position under control.

  • Use approximately two seconds backward and two seconds returning.

  • Begin with a short movement range. Extend it only while you can maintain control.

  • End the set when you can no longer preserve your position.

Dosage

  • Sets: 2–4; default 3

  • Repetitions: 6–15 per set; default 10

  • Tempo: approximately 4 seconds per repetition

  • Intensity: RPE 4–7/10; default 5/10

  • Rest: 1–2 minutes between sets; default 90 seconds

  • Frequency: according to your training programme

Follow your assigned prescription. The upper limits are options, not targets.

Important

  • The goal is controlled anti-extension loading, not the largest possible movement range.
  • Reduce the range or end the set if your lower back begins to sag, your pelvis loses control, or you cannot return smoothly. If the suspended variation is too demanding, use a stable forearm plank as a simpler alternative.
  • Do not push through pain in the back or shoulders. Check the suspension setup before every session.

Progression

  • First establish consistent technique at a manageable range.
  • Gradually increase repetitions within the prescribed range, then consider extending the movement range. Change one variable at a time; do not increase difficulty at the expense of trunk control.

Expected Effects

  • Improved control of trunk position during suspended movement

  • Greater tolerance of controlled anti-extension loading

  • Better coordination between the shoulders, trunk and pelvis

  • Supplementary development of body tension for climbing

Transfer to climbing also requires practice on the wall; this exercise does not replace climbing-specific movement training.

Video Demonstration

Use the demonstration to check your setup, movement range and controlled return before performing the exercise.

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