Introduction: Non-steroidal anti-inflammatory drugs (NSAIDs) taken before exercise have been shown to impair bone formation. NSAIDs also suppress inflammatory cytokines, such as interleukin-6 (IL-6), that can have pro-resorptive effects. It is unclear how taking NSAIDs timed around exercise influences inflammatory and bone biomarkers following an acute exercise bout in older adults.
Purpose: To determine if timing of ibuprofen use relative to a single exercise bout has acute effects on serum IL-6, bone-specific alkaline phosphatase (BAP, marker of bone formation), and c-telopeptide of type I collagen (CTX, marker of bone resorption).
Methods: As part of a 36-week exercise intervention, participants aged 60 to 75 years were randomized to 3 groups: placebo before and after exercise (PP), ibuprofen before and placebo after exercise (IP), or placebo before and ibuprofen after exercise (PI). Acute responses were studied in a subset of participants (12 PP, 17 IP, 13 PI). Blood was sampled before and immediately, 30 min, and 60 min after exercise for IL-6, BAP, and CTX.
Results: The exercise-induced increase in IL-6 was blunted in response to IP when compared to PI 60-min after exercise (p < 0.001). There were no significant differences in the change in BAP or CTX between groups at any time points CONCLUSION: Ibuprofen taken before exercise dampened the inflammatory response to exercise but had no effects on bone biomarkers in older adults. It may be necessary to monitor changes for a longer time interval after an acute exercise bout to determine whether bone turnover is altered by ibuprofen or other NSAIDs.
Trial Registration: ClinicalTrials.gov: NCT00462722; Posted 04/19/2007.
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| http://dx.doi.org/10.1007/s00421-021-04691-8 | DOI Listing |
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