Final answer:
Balance and strengthening exercises are the most effective for preventing falls in older adults.
Step-by-step explanation:
The most effective exercise programs for preventing falls in older adults are balance and strengthening exercises. These exercises help improve muscle strength, coordination, and balance, which are essential for preventing falls. Examples of balance and strengthening exercises include standing on one leg, heel-to-toe walk, and squats. These exercises can be done with the guidance of a physical therapist or in a specialized falls prevention program.