Psychomotor performance during prolonged exercise above and below the blood lactate threshold

J Chmura, H Krysztofiak, AW Ziemba, K Nazar… - European journal of …, 1997 - Springer
Previous investigations from this laboratory have demonstrated that during graded exercise
with exercise intensities increasing every 3 min until exhaustion the multiple choice reaction …

[HTML][HTML] Brain functional reserve in the context of neuroplasticity after stroke

…, M Dorobek, M Barcikowska-Kotowicz, A Ziemba - Neural …, 2019 - hindawi.com
Stroke is the second cause of death and more importantly first cause of disability in people
over 40 years of age. Current therapeutic management of ischemic stroke does not provide …

[HTML][HTML] Seasonal vitamin D status in Polish elite athletes in relation to sun exposure and oral supplementation

…, H Krysztofiak, M Mlynczak, E Gaczynska, A Ziemba - PloS one, 2016 - journals.plos.org
Vitamin D does not only influence the musculoskeletal health and mineral homeostasis but
it also affects cardiovascular, endocrine, nervous, immune and mental functions, thus it is of …

The effect of chronic administration of corticosterone on anxiety-and depression-like behavior and the expression of GABA-A receptor alpha-2 subunits in brain …

…, A Wisłowska-Stanek, P Krząścik, A Ziemba… - Hormones and …, 2014 - Elsevier
The aim of this study was to examine changes in rat emotional behavior and determine
differences in the expression of GABA-A receptor alpha-2 subunits in brain structures of low- (LR) …

Changes in the brain expression of alpha-2 subunits of the GABA-A receptor after chronic restraint stress in low-and high-anxiety rats

…, P Krząścik, P Maciejak, J Szyndler, A Ziemba… - Behavioural brain …, 2013 - Elsevier
This study assessed the mechanisms underlying the behavioral differences between high- (HR)
and low-anxiety (LR) rats selected for their behavior in the contextual fear test (ie, the …

Age as independent determinant of glucose tolerance

…, DC Muller, JL Fleg, J Sorkin, AW Ziemba… - Diabetes, 1991 - Am Diabetes Assoc
It has been proposed that the decline in glucose tolerance with age is not a primary aging
effect but is secondary to a combination of other age-associated characteristics, ie, disease, …

Effects of supplementation with branched chain amino acids and ornithine aspartate on plasma ammonia and central fatigue during exercise in healthy men

T Mikulski, J Dabrowski, W Hilgier, A Ziemba… - Folia …, 2015 - termedia.pl
Results: After ingestion, during both efforts and after 20 minutes of recovery the plasma
concentrations of all supplemented amino acids were significantly increased, while the fTRP/…

[HTML][HTML] Vitamin B12 Status and Optimal Range for Hemoglobin Formation in Elite Athletes

…, M Młyńczak, H Krysztofiak, B Frączek, A Ziemba - Nutrients, 2020 - mdpi.com
Background: Athletes and coaches believe in the ergogenic effect of vitamin B 12 (which
results from enhanced erythropoiesis) and they often insist on its unjustified supplementation. …

Ginseng treatment improves psychomotor performance at rest and during graded exercise in young athletes

AW Ziemba, J Chmura… - … Journal of Sport …, 1999 - journals.humankinetics.com
This study was designed to determine the effect of ginseng treatment on multiple choice
reaction time (RT) during exercise. Fifteen soccer players (age 19.07 ± 0.62 yrs) were placed in …

Influence of caffeine, cold and exercise on multiple choice reaction time

B Kruk, J Chmura, K Krzeminski, AW Ziemba… - …, 2001 - Springer
Rationale: The effects of caffeine on psychomotor performance have been evaluated under
resting conditions and in a thermoneutral environment. Our hypothesis was that these effects …