Final answer:
A gait speed of less than 1 m/s indicates an increased risk of falls, as this is considered a slower speed that may suggest balance or mobility problems.
Step-by-step explanation:
If someone has a gait speed of <1 m/s, the likely outcome would be a) Increased risk of falls. This measure of gait speed is considered slow and may indicate mobility issues or balance problems that could predispose an individual to falls. A normal or healthy gait speed is generally considered to be around 1.2 to 1.4 m/s for older adults, and those with a speed less than 1 m/s are often at higher risk for falls and related injuries. Enhanced cardiovascular health and improved joint stability are typically associated with more vigorous physical activity and would not be indicated by a slower gait speed. Walking assessments, such as a tandem gait test or observing a patient walking on heels or toes, are common methods used by healthcare professionals to evaluate balance, risk of falls, and overall mobility.