Effects of Acute Maximum-Intensity Exercise on Matrix Metalloproteinase-2, -9, and Tissue Inhibitor of Metalloproteinase-1 Levels in Adult Males with Type 1 Diabetes Mellitus Treated with Insulin Pumps.

Dysregulation of matrix metalloproteinases (MMPs) activity is considered one of the potential causes of vascular complications in diabetic patients. Since training volume may influence MMPs levels in varying ways, the aim of our study was to evaluate changes in MMPs levels following acute maximum-intensity exercise in male patients with type 1 diabetes mellitus (T1DM). This study included 24 male T1DM patients and 10 healthy controls.

The effect of physical exercise during competitions and in simulated conditions on hormonal-neurophysiological relationships in kickboxers.

K1-format kickboxing is a widely followed combat sport that requires intense physical exercise. However, research into the body's response to this type of combat is sparse. This study aims to assess the alterations in hormone levels and brain activity in elite kickboxers following an actual K1 bout and compare these changes with those observed in a control group engaged in a simulated fight exercise with a punchbag.

Effect of regular winter swimming on blood morphological, rheological, and biochemical indicators and activity of antioxidant enzymes in males.

Background: Exposure of the human body to cold water triggers numerous beneficial physiological changes. The study aimed to assess the impact of regular winter swimming on blood morphological, rheological, and biochemical indicators and activity of antioxidant enzymes in males.

Methods: The study involved 10 male winter swimmers (the same participants examined before the season and after the season) and 13 males (not winter swimming, leading a sedentary lifestyle) in the control group.

Acute effects of multi-ingredient pre-workout dietary supplement on anaerobic performance in untrained men: a randomized, crossover, single blind study.

Background: Multi-ingredient pre-workout dietary supplements (MIPS), which are combinations of different ingredients acting on different physiological mechanisms, can have a synergistic effect and improve performance. The aim of the study was to determine the acute effects of a multi-ingredient pre-workout supplement containing: beta-alanine, taurine, caffeine, L-tyrosine, and cayenne pepper (capsaicin) on anaerobic performance.

Methods: A randomized, crossover, single-blind study was designed.

Changes in the concentration of bone turnover markers in men after maximum intensity exercise.

Background: Physical activity is an important factor in modelling the remodelling and metabolism of bone tissue. The aim of the study was to evaluate the changes in indices demonstrating bone turnover in men under the influence of maximum-intensity exercise.

Methods: The study involved 33 men aged 20-25, divided into two groups: experimental ( = 15) and control ( = 18).