We compared 3 months of eucaloric (12 kcal/kg/wk) steady state aerobic training (AER) to interval training (INT) in men at risk for insulin resistance. Primary outcomes included oral glucose tolerance testing (OGTT) and HOMA-IR 24 h and 72 h after each participants last exercise session. Secondary outcomes were VO2max, anthropometry, and metabolic syndrome expressed as a summed z-score (zMS). We also performed a sub-analysis for participants entering the trial above and below the HOMA-IR study median. Mean (95% CI) AER ( - 12.81 mg/dl; - 24.7, - 1.0) and INT ( - 14.26 mg/dl; - 24.9, - 3.6) significantly improved 24 h OGTT. HOMA-IR did not improve for AER, but did for INT 24 h and 72 h post-exercise. VO2max improved similarly for both groups. Changes in body mass for INT ( - 2.29 kg; - 3.51, - 1.14), AER, ( - 1.32 kg; - 2.62, 0.58)] and percent body fat [INT, - 0.83%; - 1.62, - 0.03), AER ( - 0.17%; - 1.07, 0.06)] were only significant for INT. When examined as a full cohort, zMS improved for both groups. Upon HOMA-IR stratification, only high HOMA-IR AER showed significant improvements, while both low and high INT HOMA-IR participants demonstrated significant reductions (P<0.05). Eucaloric AER and INT appear to affect fasting glucose, OGTT and VO2max similarly, while INT may have a greater impact on HOMA-IR and zMS.
The chronopharmacokinetics of indomethacin was studied in patients with rheumatoid diseases after a single oral dose of a new prolonged-release form containing indomethacin 75 mg. The drug was given either at 8, 12 or 20 h and its plasma concentrations, as well as those of its main metabolite, O-desmethyl indomethacin, were followed using a new specific gas chromatographic assay. When given at 20 h plasma indomethacin concentrations did not exhibit a sharp peak and remained much more stable than when the drug was given at 8 or 12 h. In addition, plasma O-desmethyl indomethacin was significantly higher after administration of indomethacin at 20 h than at 8 or 12 h. It is concluded that the pharmacokinetics of the oral prolonged-release form of indomethacin exhibited chronobiological variation. The data are in accordance with clinical studies which suggest that it might be worthwhile to administer this formulation of indomethacin at 20 h.
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