Age- and Sex-Based Differences in Gait Pattern Characteristics Among Adults Over 50: A Cross-Sectional Study.

Area of Science:

• Gerontology
• Biomechanics
• Human Movement Science

Background:

• Understanding gait changes in aging adults is vital for maintaining functional independence.
• Chronic conditions often coexist with normal aging processes, impacting mobility.
• Gait analysis in older adults is crucial for assessing functional capacity and fall risk.

Purpose of the Study:

• To characterize gait parameters in adults aged 50 and older.
• To investigate age-related differences in gait across different adult age groups.
• To identify sex-based variations in gait characteristics.

Main Methods:

• 34 adults aged 50-59, 38 aged 60-69, and 28 aged 70+ participated.
• Participant data included age, sex, height, weight, and comorbidities.
• Gait was assessed using inertial measurement units during a 30-m walk at a self-selected pace.

Main Results:

• Stride length, velocity, push-off ratio, and minimal toe clearance decreased with age (p < .03).
• Flat-foot ratio increased with age (p < .01), while cadence and walking phases remained similar.
• Males showed lower cadence, longer stride, and higher maximal heel clearance than females (p < .04).

Conclusions:

• Gait velocity and stride length diminish with advancing age in adults over 50.
• Significant sex differences were observed in stride length and maximal heel clearance.
• Age and sex are critical factors in assessing gait and functional capacity in older adults.