GENERAL TRAINING SCIENCE – ALL-CAUSE MORTALITY – AGING


4 RESEARCH ARTICLES + 1 GRAPHIC


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EFFECT OF MODERATE TO VIGOROUS PHYSICAL ACTIVITY ON ALL-CAUSE MORTALITY IN MIDDLE-AGED AND OLDER AUSTRALIANS – 2015


Klaus Gebel, PhD1,2; Adrian E. Bauman, et al
DESIGN
– 2006 to 2014; 204 542 adults aged 45-75 yrs
CONCLUSIONS
– Among people reporting any activity, there was an inverse dose-response relationship between proportion of vigorous activity and mortality


LEISURE TIME PHYSICAL ACTIVITY AND MORTALITY – 2015


Hannah Arem; Charles E. Matthews
IMPORTANCE
– 2008 Physical Activity Guidelines recommended a minimum of 75 vigorous-intensity or 150 moderate-intensity min/wk of aerobic activity for substantial health benefit
– It suggested additional benefits by doing more than double this amount

– However, the upper limit of longevity benefit or possible harm with more physical activity is unclear
RESULTS
(1) Compared with individuals reporting no leisure time physical activity, we observed:
– 20% lower mortality risk among those performing less than the recommended minimum of 7.5 metabolic-equivalent hours per week
– 31% lower risk at 1 to 2x the recommended minimum
– 37% lower risk at 2 to 3x the minimum
– 39% lower risk at 3 to 5x the minimum

(2) There was no evidence of harm at 10x or more the recommended minimum
(3) A similar dose-response relationship was observed for mortality due to cardiovascular disease and to cancer


FITNESS VS. FATNESS ON ALL CAUSE MORTALITY – 2014


Barry VW, Blair SN et al
PURPOSE
– Quantify the joint association of cardiorespiratory fitness (CRF) and weight status
RESULTS
(1) Compared to normal weight-fit individuals, unfit individuals had twice the risk of mortality regardless of BMI
(2) Overweight and obese-fit individuals had similar mortality risks as normal weight-fit individuals
(3) Furthermore, the obesity paradox may not influence fit individuals
CONCLUSIONS
– Focus on physical activity and fitness-based interventions rather than weight-loss driven approaches to reduce mortality risk


MORTALITY TRENDS AND THE IMPORTANCE OF CARDIORESPIRATORY FITNESS – 2010


Duck-chul Lee,1 Enrique G Artero,2 Xuemei Sui,1 and Steven N Blair3
SUMMARY
– CRF is often overlooked from a clinical perspective compared with other risk factors such as hypertension, diabetes, smoking, or obesity
– Several studies indicate CRF is at least as important as the traditional risk factors, and is often more strongly associated with mortality
– Studies report that CRF appears to reduce the increased risk of death associated with obesity
– Several biological mechanisms suggest that CRF improves insulin sensitivity, blood lipid profile, body composition, inflammation, and blood pressure


 

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