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Abstract
Background Football sporting exercise is one of the most popular events in the world. While there are well-documented reports on the effects of different athletic sporting activities on the biochemical markers of renal and liver functions, there are paucity of well-documented reports on the effects of football activity on Nigerian sportsmen, hence the need for this study.
Method Biochemical markers of renal and liver functions (urea, creatinine, aspartate aminotransaminase (AST), alanine aminotransaminase (ALT), alkaline phosphatase (ALP)) were determined using Cobas c 111 auto-analyser by Roche.
Results The mean urea (mmol/L)±SEM, creatinine (μmol/L)±SEM, AST (U/L)±SEM, ALT (U/L)±SEM and ALP (U/L)±SEM values before and after soccer exercise were 3.56±0.12, 3.76±0.13, p=0.000; 79.36±1.53, 95.90±2.03, p=0.000; 32.54±1.15, 35.81±1.32, p=0.000; 15.68±1.02, 13.97±0.81, p=0.000; and 82.21±3.67, 86.08±3.86, p=0.046, respectively. Pearson’s degree of association for AST and ALT before and after exercise were r=0.678, p=0.000 and r=0.770, p=0.000, respectively; ALT and ALP before exercise showed a positive and significant association (r=0.317, p=0.028). On the other hand, there was a negative but insignificant correlation between urea before exercise and ALP after exercise (r=−0.003, p=0.982) and urea before exercise versus AST after exercise (r=−0.120, p=0.418). A positive but insignificant association was observed between urea and creatinine before exercise (r=0.093, p=0.530).
Conclusion Football sporting event is associated with an increase in urea, creatinine, AST and ALP plasma values, and such interpretation of these parameters among sportsmen should be done with caution.
- football
- exercise
- urea
- creatinine
- Alanine-aminotransferase
- Aspartate-aminotransferase
- alkaline phosphatase
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Footnotes
Acknowledgements Authors are grateful to all undergraduate students of the College of Medicine, University of Lagos, who participated in this study.
Contributors EOA conceptualised and designed the study. He also participated in the collection, analysis and interpretation of the data as well as the drafting and review of the manuscript. EFA, AOC and ONO all participated in data collection, analysis of the data and drafting of the manuscript. AFO and EOO participated in the analysis of the data, drafting and review of the manuscript.
Competing interests None declared.
Ethics approval IRB Lagos University Teaching Hospital, Lagos, Nigeria, ADM/DCST/HREC/126.
Provenance and peer review Not commissioned; externally peer reviewed.
Data sharing statement This study also evaluated the effects of regular sporting activity on male reproductive hormone parameters, which has been sent to one of our institutional journals for possible publication. All data from this study can be accessed and obtained through the corresponding author.