Diversity in athlete’s response to strength effort in normobaric hypoxia

Abstract

The hypoxia may be used during exercise training sessions in humans with the aim of improving athletic performance. The effect of normobaric hypoxia strength training on thermal properties of blood serum has been evaluated in a group of 12 male and female athletes using differential scanning calorimetry (DSC). Each athlete was tested under normoxic and simulated hypoxic (4000 m, F i O 2 = 13% and 5000 m, F i O 2 = 11.3%) conditions during squats with a barbell (70% 1RM) exercise. A substantial inter-individual variation in the effects of hypoxia on serum DSC curves has been observed. The effect of exercising in normobaric hypoxia has been found greater for men than for the women. When the work intensity is high enough, the strength exercise in hypoxia can trigger an acute-phase response. Calorimetric and biochemical data have shown that men's exercising in hypoxia could increase the concentration of acute-phase proteins: haptoglobin and/or C-reactive protein. Our results suggest that 24-h period of rest is sufficient to return to the pre-exercise state after normoxic as well as hypoxic training session for both men and women. The recovery seems to be faster after the training in normobaric hypoxia conditions than in normoxia in the male but not in the female group of athletes.

Differential scanning calorimetry reveals that whole-body cryostimulation in cross-country skiers can modify their response to physical effort

“…It is sensitive to the up-or down-regulation of proteins and the modified thermal stability of major proteome components resulting from changes in interactions between blood plasma/serum proteins and disease-related metabolites. Earlier data from our laboratory have indicated that exercise training can also modulate the calorimetric profile of blood serum [53][54][55].…”

“…The utility of DSC method for clinical application (diagnosing, classifying and monitoring patients) and in sport medicine is extensively discussed by scientists in recent years [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55]. DSC has been widely applied to the analysis of blood plasma, serum or other biofluids to obtain information on the health status of the person examined.…”

Modification of blood serum DSC profiles by sauna treatments in cross-country skiers during the exercise cycle

“…Differential scanning calorimetry (DSC) has found wide application in medical and biological sciences [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. Attempts to use the DSC method for clinical purposes have been made for several years [15][16][17][18][19][20][21][22][23][24][25][26][27].…”

Whole-body cryostimulation impact on blood serum thermal denaturation profiles of cross-country skiers

“…For several years, many attempts have been made to apply the differential scanning calorimetry (DSC) method in various areas of medical diagnostics and sports medicine. DSC profiles of biological fluids can be a source of valuable information about the health of patients as well as athletes [15][16][17][18][19][20][21][22][23][24][25][26][27]. The DSC method was used in patients with multiple disease entities [15][16][17][18][19][20][21][22][23][24].…”

“…The DSC method was used in patients with multiple disease entities [15][16][17][18][19][20][21][22][23][24]. The branch of research among athletes is just developing [25][26][27]. Further research is needed on various groups of athletes to effectively support sports training and help in the case of problems related to the health of athletes.…”