How long can you stand on one leg - eyes closed - before losing your balance? 30 seconds sounds doable but it's actually quite hard. You must stop the test if you begin to teeter, if the raised foot touches the ground or you open your eyes. These are the average results in seconds related to age: 4 seconds = 70 years, 5 seconds = 65 years, 7 seconds = 60 years, 8 seconds = 55 years, 9 seconds = 50 years, 12 seconds = 45 years, 16 seconds = 40 years, 22 seconds = 30-35 years, 28 seconds = 25-30 years