@article {Magutahe000316, author = {Karani Magutah and Rebecca Meiring and Nilesh B Patel and Kihumbu Thairu}, title = {Effect of short and long moderate-intensity exercises in modifying cardiometabolic markers in sedentary Kenyans aged 50 years and above}, volume = {4}, number = {1}, elocation-id = {e000316}, year = {2018}, doi = {10.1136/bmjsem-2017-000316}, publisher = {BMJ Specialist Journals}, abstract = {Objectives We compared effects of shorter moderate-intensity exercise time (\<10 min bouts) on cardiometabolic parameters with the current recommendations among elderly adults.Methods Fifty-three sedentary individuals aged >=50 years were divided into exercise groups1: male and2 female short-duration bouts (MS and FS, respectively), and3 male and4 female long-duration bouts (ML and FL, respectively). Short-duration bouts consisted three 5{\textendash}10 min moderate-intensity jogging sessions daily, and long-duration bouts consisted 30{\textendash}60 min sessions 3{\textendash}5 days weekly. Cumulative exercise times were equivalent. Physical activity (PA) was measured by log and activity monitors. Fasting venous blood at baseline and 8 weekly intervals was used for blood chemistry.Results After 24 weeks, MS and FS with total cholesterol (TC) of \>5.2 mmol/L and \>5.3 mmol/L decreased from 22.2\% to 14.8\% and from 30.9\% to 11.5\%, respectively. For ML, this decreased from 25.9\% to 3.7\%, while FL had 0\% change. In MS and ML, TC/high-density lipoproteins (HDLs) of \>5.0 mmol/L dropped from 22.2\% to 7.4\% and from 22.2\% to 15.4\%, respectively. In FS and FL, TC/HDL of \>4.5 mmol/L declined from 19.2\% to 7.7\% and from 19.2\% to 3.8\%, respectively. MS and ML with fasting blood glucose of >=5.5 mmol/L declined from 40.7\% to 11.1\% and from 33.3\% to 3.7\%, respectively. Similarly, it declined from 46.2\% to 0\% and 42.3\% to 11.5\% for FS and FL, respectively. There were no differences in the changes between regimes throughout the study.Conclusion Bouts lasting \<10 min per session are as good as those lasting ;>=30 min in improving cardiometabolic profiles of sedentary adults aged >=50 years.}, URL = {https://bmjopensem.bmj.com/content/4/1/e000316}, eprint = {https://bmjopensem.bmj.com/content/4/1/e000316.full.pdf}, journal = {BMJ Open Sport \& Exercise Medicine} }