Implications of physiology of human activities to a health educator
Answers
Answer:
The Lifestyle Interventions and Independence for Elders (LIFE) study was a multi-center, single-blind randomised experiment of elderly people.
Eight field centres are located around the United States.
1635 individuals aged 78.9 5.2 years, 67.2 percent of whom were women at risk of mobility handicap (Short Physical Performance Battery [SPPB] 10) took part in the study.
Moderate PA, which included walking, resistance, and balance exercise, was compared to HE, which included issues relevant to older individuals.
Grip strength, SPPB score and its components (balance, 4 m gait speed, and chair-stands), and 400 m walking speed were the main outcomes.
Explanation:
Across all follow-up times, PA had a higher total SPPB score than HE (overall P =.04), as did the chair-stand component (overall P.001). Balance (overall P =.12), 4 m gait speed (overall P =.78), and grip strength (overall P =.62) showed no intervention effects. However, the PA group walked quicker for 400 metres than the HE group (overall P =.001). In independent models, changes in SPPB score explained 29 percent of the rate reduction in major mobility handicap in the PA/HE group, whereas changes in the chair stand component explained 39 percent. The PA group had considerably better lower extremity performance (SPPB) than the HE group. Changes in chair-stand score accounted for a significant percentage of the effect of PA on the reduction of major mobility handicap, supporting the theory that maintaining muscle strength is crucial in preventing disability.