Overall physical fitness capacity is associated with better cognitive function in Qatari adults, with the relationship between specific fitness measures and cognitive function varying by sex, with muscle strength having a stronger effect for males and body composition for females.
Key Findings
Results
Lower physical fitness capacity was significantly associated with lower psychomotor coordination in females but not in males.
Female association: OR=1.57, p=0.040
Male association: OR=1.65, p=0.062 (not statistically significant)
Study population: 1000 adults aged 40 years and older from the Qatar Biobank
Logistic regression was used to measure the association
Results
Lower physical fitness capacity was significantly associated with lower short-term visual memory in females but not in males.
Female association: OR=1.68, p=0.042
Male association: OR=1.58, p=0.062 (not statistically significant)
Cognitive function was assessed through tests of short-term visual memory and psychomotor coordination
Cross-sectional design limits causal inference
Results
Greater muscle strength in males was associated with approximately half the likelihood of having lower psychomotor coordination.
OR=0.48, p=0.04 for males with greater muscle strength
This protective association was observed specifically in males
No comparable significant association was reported for muscle strength in females
Muscular strength was among the physical fitness measures included in the study
Results
Higher body fat percentage in females was associated with poorer cognitive function across both cognitive domains.
Each 1% increase in body fat was linked to 6% higher odds of low short-term visual memory (p=0.02)
Each 1% increase in body fat was linked to 6% higher odds of low psychomotor coordination (p=0.006)
This association was specific to females
Body composition was one of the physical fitness measures assessed
Results
Cardiorespiratory fitness showed no statistically significant association with short-term visual memory or psychomotor coordination in either sex.
No significant association was found for cardiorespiratory fitness in males or females
Cardiorespiratory fitness was one of the physical fitness components measured in the study
This null finding applied to both cognitive outcomes assessed
The study used data from 1000 adults aged 40 and above from the Qatar Biobank
Alabdulrazzak A, Al-Louzi T, Rahhal M, Albaloshi A, Al-Emadi R, Al Mohannadi M, et al.. (2026). Physical fitness and cognitive function: a cross-sectional study among adults in Qatar.. BMJ open. https://doi.org/10.1136/bmjopen-2025-113261