How Iridium Programs This

Iridium accounts for the high-impact nature of road running by checking your sleep data and metabolic recovery estimates to generate a readiness score. The system also tracks the specific fatigue accumulation in your quadriceps and calves, adjusting the volume of nearby leg workouts to prevent interference with your strength training.

Form Cues

Maintain an upright posture with a slight forward lean from the ankles
Land on your mid-foot directly underneath your hips
Keep your gaze fixed on the horizon rather than your feet
Swing your arms forward and back with relaxed shoulders
Aim for a quick, light cadence to minimize ground contact time

Don't

Don't overstride by letting your foot land far in front of your body
Don't cross your arms over the center of your chest while swinging
Don't land heavily on your heels with a locked knee
Don't hunch your shoulders up toward your ears

Common Mistakes

Overstriding
Excessive heel striking
Running with tense shoulders
Inconsistent pacing
excessive vertical bouncing

Muscles Worked

This exercise primarily targets the quadriceps and calves as they absorb impact and propel the body forward. It also engages the hamstrings and glutes for hip extension, while the core muscles work continuously to stabilize the torso and maintain posture against gravity.