The effectiveness of military physical exercise on irisin concentrations and oxidative stress among male healthy volunteers

Abstract

BackgroundIrisin, a newly discovered hormone, is secreted into the circulation from skeletal muscles in response to physical exercise. The biochemical parameters related to irisin secretion have not been sufficiently investigated yet. The aim of this study was to examine the effectiveness of exercise on the level of irisin and its correlation with biochemical and oxidative stress parameters.Materials and methodsIn this pre- and post-test observational study, 39 healthy male volunteers from a military training setting were followed up on between September and November 2015. The individuals who were included in this study were between 22 and 27 years old with an average age of 24. Those with inflammatory disorders or chronic diseases such as diabetes mellitus were excluded from the study. The parameters were measured at the baseline, at 4 weeks, and at 8 weeks of intervention.ResultsThe study found that the systolic and diastolic blood pressures substantially decreased after 8 weeks of intervention. The cholesterol-to-HDL ratio and glucose levels were significantly higher at the baseline compared to 8 weeks. Total protein and albumin were significantly higher following 4 weeks (0.25 and 0.21 g/dL) and 8 weeks (0.32 and 0.16 g/dL), respectively. Meanwhile, total globulin and irisin increased following 8 weeks of the intervention by only 0.16 g/dL and 0.41 μg/mL, respectively. The high sensitivity C-reactive protein (hs-CRP) decreased following 8 weeks (−0.81 μg/mL). The protein carbonyl (PC) decreased following 4 weeks by only 0.34 nmol/L.ConclusionsThis study demonstrated that military training enhanced irisin hormone secretion following 8 weeks of military exercise.

Long-Term Effect of Exercise on Irisin Blood Levels—Systematic Review and Meta-Analysis

“…Several kinds of physical exercise increased irisin blood levels among healthy people as well. High-intensity interval training increased irisin in young, healthy males [41,60] and healthy young adults [43], military aerobic training [48] increased irisin blood levels in young, healthy males and one study with a single group design found a significant increase in irisin in young females after treadmill exercise [37]. On the other hand, cycle ergometer-sprint training, consecutive training [77] as well as indoor running [64] led to a decrease of irisin blood levels in young, healthy males, and the same effect was found after basketball training in healthy children [39] or after taekwondo training in obese children [70].…”

Sedanter, sağlıklı, genç erkek bireylerde akut tüm vücut titreşim egzersizinin serum irisin seviyelerine etkileri

“…Sekiz haftalık sürede Tabata protokolünü uygulayan HIIT antrenman grubunun (n=15) egzersiz bitiminden 1 gün sonra, kan irisin konsantrasyonunda anlamlı artış olduğu bildirilmiştir [17]. Askeri eğitim ortamındaki 39 sağlıklı erkeğin, 8 hafta süren egzersiz eğitiminin bitiminden sonraki gün irisin salgılanmasının arttığı gözlenmiştir [16]. Jedrychowski ve ark.…”

“…Egzersize yanıt olarak irisin seviyelerinin akut olarak [2,7,[12][13][14] ve kronik egzersizden 1 gün sonra toparlanma döneminde arttığı [15][16][17][18] bildirilmiştir. Egzersiz sonrası FNDC5 seviyelerinde de artışın gözlendiği çalışmalar mevcuttur [2,19].…”

Remote metastasis detection by video thermometry: A promissing preclinical study

“…Different tissues have different emissivity at infrared wavelengths, emitting signals 15,16 . Objects naturally emit thermal signals in the range of infrared electromagnetic radiation, and the type of signal emitted or radiated at a certain temperature depends on both the characteristics of the object and its surrounding environment 17 , just like the technology that captures these signals and transforms them into images 18 , Therefore, infrared measurement devices acquire the radiation emitted by the object and convert it into an electronic signal 19,20 . When a cell performs a biological task ATP hydrolysis takes place resulting in the loss of energy in the form of heat 21 .…”