Supine Runner (TRX / Suspension Trainer)
Core exercise performed on your back with alternating knee drives. Creates a running motion while maintaining plank position.
Instructions
- Lie on your back with your head near the anchor point.
- Place your feet in the TRX foot cradles.
- Position your hands on the ground, extending your arms and lifting your hips into a plank position.
- Drive one knee toward your chest in a running motion.
- Return that knee to the extended position and drive the opposite knee toward your chest.
- Maintain a steady running rhythm while keeping your hips level.
Tips
- Keep your hips level and avoid swaying side to side.
- Maintain a steady pace and controlled breathing.
- Engage your core to prevent lower back strain.
- Keep your hands shoulder-width apart for stability.
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 |