The Claim
In overweight and obese older adults, a 10% increase in stride frequency above preferred levels increases the energy cost of walking by 8%, while reductions in stride frequency do not increase energy cost, indicating that preferred stride frequency is selected to minimize metabolic expenditure during walking.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In overweight and obese older adults, walking with a 10% higher stride frequency than preferred increases energy use by 8%, while walking with a lower stride frequency does not increase energy use, showing that preferred stride frequency minimizes metabolic cost.
See the scientific wording
In overweight and obese older adults, increasing stride frequency by 10% above preferred levels increases the energy cost of walking by 8%, while decreasing stride frequency does not increase energy cost, suggesting that these individuals may naturally select stride frequencies to minimize metabolic expenditure.
When overweight and obese older adults walk faster than their natural pace, their heavier limbs must accelerate and decelerate more often, forcing muscles to work harder and burn more energy. Their walking style also spends more time with both feet on the ground, which reduces the natural bounce from tendons and makes each step less efficient. This combination forces the body to use more oxygen and burn more calories to move the same distance.
What the research says
1 studyStudy: Excess Body Weight and Gait Influence Energy Cost of Walking in Older Adults
When overweight older adults walk faster than their usual pace, they use 8% more energy—but walking slower doesn’t make them use more energy. This suggests their body naturally picks the pace that uses the least energy.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.