MuscleRx Longevity Tool

Longevity Score

These are not just workouts. They are markers of how well your body may hold up over time. Enter your test data and your score updates instantly.

Performance Markers

🧠 Grip Strength

Enter the percentage of your bodyweight you can hold with both dumbbells combined, and how long you can hold it.

Elite: 100% for 30–60 sec
Strong: 75% for 30 sec
Average: 50% for 20–30 sec
Needs Work: Less than 50% or grip fails quickly
Rating: —

🚶‍♂️ Farmer’s Walk

Enter total carry load as a percentage of bodyweight and how many seconds you can walk with good posture.

Elite: 100% for 60+ sec
Strong: 100% for 30–60 sec
Average: 75% for 30 sec
Needs Work: Struggle to maintain posture or distance
Rating: —

🫀 VO₂ Max

Select sex for benchmark comparison, then enter your VO₂ max value.

Elite: 50+ men / 45+ women
Strong: 40–50
Average: 30–40
Needs Work: Below 30
Rating: —

⚖️ Balance

Enter your best time standing barefoot on one foot, eyes open.

Elite: 60+ sec each side
Strong: 30–60 sec
Average: 15–30 sec
Needs Work: Less than 15 sec
Rating: —

🧱 Core Control

Enter your strict plank hold time in seconds.

Elite: 120–180 sec
Strong: 90–120 sec
Average: 60–90 sec
Needs Work: Under 60 sec
Rating: —

🧘 Mobility

Enter how long you can comfortably hold a deep squat with heels down and chest up.

Elite: 60+ sec comfortably
Strong: 30–60 sec
Average: 15–30 sec
Needs Work: Can’t hold position
Rating: —