Changes in Compliance With Physical Activity Guidelines and Cardiovascular Disease Mortality

Area of Science:

• Cardiovascular Health
• Preventive Medicine
• Exercise Science

Background:

• The impact of adhering to US Physical Activity (PA) Guidelines and shifts in adherence over time on cardiovascular disease (CVD) mortality remains unclear.
• Understanding these effects is crucial for public health recommendations and individual health management.

Purpose of the Study:

• To investigate the association between consistent adherence to PA guidelines and changes in adherence over time with CVD mortality risk in men.
• To quantify the risk reduction associated with meeting PA guidelines and the consequences of discontinuing adherence.

Main Methods:

• Longitudinal study of 15,411 men from the Aerobics Center Longitudinal Study (1970-2002).
• Leisure-time physical activity (PA) assessed and converted to metabolic equivalent minutes per week.
• Participants categorized into groups based on PA guideline adherence (remained inactive, became active, became inactive, remained active).
• Cox regression analysis adjusted for multiple confounders (age, BMI, smoking, etc.) to assess CVD mortality risk.

Main Results:

• Over a mean 6.2-year follow-up, 439 CVD deaths occurred.
• Consistent adherence to PA guidelines was associated with a 54% reduced risk of CVD mortality compared to non-adherence.
• After adjusting for confounders, the risk reduction remained significant at 47%.

Conclusions:

• Sustained adherence to PA guidelines offers significant protection against CVD mortality in men.
• Discontinuing PA adherence can diminish or eliminate the protective effects on longevity.
• Promoting and maintaining regular physical activity is vital for cardiovascular health and long-term survival.