Gait, function and class III obesity

Mobility is a critical component of participation in daily life. Routine physical activity (PA) is a component of disease prevention and treatment. People with Class III obesity (at least 100 pounds over recommended weight for height) experience mobility differently than lower weighted cohorts. However, current guidelines and recommendations treat all people with obesity the same. An integrated review of the literature found a scarcity of research examining PA interventions with this population. The studies that were found had consistent threats to external and internal validity. A pilot study found differences between Class III and a lower weight group in anthropomorphic, mobility and activity capacity measures. The findings with the Class III group more closely resembled measures of pathologic conditions rather than normative values. The study also found two gait and one anthropomorphic measures (velocity, cadence and hip circumference) that were predictive of gait capacity as measured by the Timed Up and Go test. The study used the International Classification of Functioning, Disability and Health (ICF) as a conceptual model. Post hoc analysis found high theoretical fidelity and translatable validity with the instruments used.