Which factor can contribute to reduced balance control in elderly individuals?

Decreased muscle mass is a significant factor that can contribute to reduced balance control in elderly individuals. As people age, there is a natural decline in muscle strength and mass, a condition known as sarcopenia. This loss of muscle affects the body's ability to stabilize itself, which is crucial for maintaining balance. Strong muscles support joints and help with quick adjustments when needed, so reduced muscle mass makes individuals more susceptible to falls and instability.

In contrast, increased physical activity and regular exercise generally improve balance and strength, contributing positively to an older person's mobility. Improved vision, while important for overall mobility, does not directly relate to muscle support and can sometimes be less relevant if muscle strength is insufficient to respond to visual inputs. Therefore, decreased muscle mass stands out as an essential factor leading to reduced balance control in the elderly.