National Institutes of Health NIH Turning Discovery Into Health
You can view mobility metrics like cardio fitness, walking speed, how fast you climb and descend stairs, and an estimate of your six-minute walk test. You can also get a general assessment of your walking steadiness, classified as OK, low, or very low, just by walking with your iPhone. This would traditionally require a visit to a specialty clinic where you would fill out a questionnaire and have your balance, stability, and risk of falling assessed. The Health app can give you app recommendations for health categories that interest you.
You …

