Understanding Fatigability and Fitness in Aging
Author Information
Author(s): Gay Emma, Rosano Caterina, Coen Paul, Garcia Reagan, Goodpaster Bret, Marcinek David, Newman Anne, Glynn Nancy
Primary Institution: University of Pittsburgh School of Public Health
Hypothesis
Individuals with lower scores on both perceived and performance fatigability measurements will exhibit better cellular energetics and physical performance profiles compared to those with higher scores.
Conclusion
Individuals with lower perceived and performance fatigability are younger and have better physical performance and fitness profiles.
Supporting Evidence
- Individuals with lower perceived and performance fatigability were 2 years younger.
- Lower fatigability individuals were 33% more likely to be men.
- They had 16% more daily activity.
- They exhibited 18.5% faster gait speed.
- They had 15-25% higher muscle energetics.
- They had 26% higher VO2peak.
- They had 11% lower cost-capacity ratio.
Takeaway
People who feel less tired and perform better physically tend to be younger and healthier.
Methodology
Participants were classified based on perceived and performance fatigability scores, and various physical and energetic measurements were taken.
Participant Demographics
The sample included a mix of genders, with 33% more men in the lower fatigability group.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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