Krzysztof Stec

• Doctor of Physical Education and Sport Science
• Professor (Assistant) at Jan Dlugosz University in Czestochowa, Poland

Background: The ergogenic effect is a highly practical and relevant topic in sports research, particularly in strength sports where numerous strategies have gained widespread recognition. Despite reports indicating challenges in the simultaneous use of various ergogenic strategies, our understanding of how they are practically employed is limited....

Abstract Purpose: The aim of this study was to compare High Carbohydrates Low Fat (HCLF) and Low Carbohydrate High Fat (LCHF) diets in terms of changes in body composition and maximal strength. Patients/methods: The study involved 48 men aged 25 ± 2.5, divided into two groups, one of which (n=23) was following the LCHF diet and the other (n=25) the...

Study aim : The aim of the present study was to determine the effect of 8 days of water-only fasting and physical exercise on somatic variables, lipid profile, insulin resistance and cardiovascular function in middle-aged men. Material and methods : Body weight, body composition, lipid profile, serum concentrations of insulin, glucose, β-hydroxybut...

Tracking changes in the body during fasting takes into account indicators of mental well-being and physiological parameters. The aim of the study was to measure psychological and physiological reactions, along with their mutual relations, caused by 8 days of water-only fasting. Fourteen men aged 35 to 60 participated in the study, divided into two...

The present study compared the effects on the cardiovascular, respiratory, and metabolic functions of the practice of an intensive yoga exercise routine called Dynamic Suryanamaskar (DSN) and a cycle ergometer test (CET) of increasing intensity. The study involved 18 middle-aged volunteers who had previously practiced DSN. The study was conducted i...

The inability of an individual to identify, assess, and manage emotions and levels of stress has adverse individual and societal consequences. Previous studies have shown that yoga-based interventions can successfully treat stress, anxiety, and depression, and can enhance emotional control. The aim of the current study was to assess the effect of a...

The purpose of this review is to present yoga as an important tool for both disease prevention and health care. Yoga involves a holistic approach that lacks the mechanistic fragmentation of the impact on individual organs and body systems, which arises from much of the specialization found in modern medicine. Lifestyle diseases are increasingly a p...

Cancer is one of the leading causes of death in most countries in the world. In Poland, after cardiovascular disease, cancer is the leading cause of death, and the number of malignant tumors has more than doubled in the last three decades. Increased cancer mortality in the immediate future is expected to be mainly associated with lung cancer caused...

Background: The somatic features of the athletes’ bodies partially determine their sporting level and are conditioned to a large extent by the state of nutrition. Objective: The aim of this paper is to present nutritional status and its correlation with the somatic determinants of training athletes and physical education students. Material and...

Study aim : The aim of the present study was to compare the physiological responses of female soccer players recorded during the Beep Test and Yo-Yo Test. Material and methods : Twenty-three high-level women’s soccer players underwent aerobic fitness testing. Modification of the Beep Test consisted of: lengthening the distance between turns to 40 m...

The objective of this research was to determine whether chronic (average 3.58 ± 1.56 years) deliberate adherence to low carbohydrate diets (LCDs) is associated with selected markers of metabolism, risk factors of cardiovascular disease (CVD), body mass and physical performance in apparently healthy middle-aged men (n = 12). The control group compri...

The purpose of this study is to present a comparison of the workload demonstrated by young soccer players during the phases of warm-up (WU), first half (FH) and second half (SH) of a league match. Eleven young Polish soccer players took part in this research, playing a league match after completing the WU. During the WU, FH and SH of the match the...

The aim of our study was to characterize back pain according to the occupation comprising physical and office work. Accordingly questionnaires from 100 physical workers (PW) and 100 office workers (OW) were collected. This dedicated questionnaire included 19 questions, of which 7 concerned demographic, work and stature features and 12 concerned bac...

The aim of the present study is to determine the anaerobic power of men of similar age representing different sports disciplines. Professional athletes representing the following sports participated in the study: soccer (n=15, PS), martial arts (n=12, MA), weightlifting (n=15, WL), powerlifting (n=15, PL), middle- and long distance running (n=12, D...

The aim of the present study was to assess the impact of 21-days comprehensive physiotherapy program on the functional condition of the spine and severity of pain in older people. To achieve this goal, physiotherapeutic procedures were performed on 100 elderly patients suffering from spinal disorders. The comprehensive therapy program consisted of:...

Purpose The objective of the study was to find out the trend of the effects of 4 varieties of bhastrika pranayama on static balance ability. Methods The total of 75 male students were selected as subjects. The age of the subjects ranged 17–25 years. The participants were divided randomly into 5 groups, 15 students each. They practiced 4 varieties...

The aim of the presented work is to describe the different trends in race walkers training and the biological adaptation of the body to the applied stresses, and to characterize the other phenomena accompanying this sport. The article is equally concerned with the scientific premises as well as the practical training indications. For a deeper chara...

Introduction: Reducing lipid levels in blood plasma is one of the ways of preventing cardiovascular disease. The purpose of this work is to present the changes found in the plasma lipid concentrations of Indian students who had engaged in the yoga practice known as Dynamic Suryanamaskar (DSN) for a period of 12 weeks. Methods: 105 randomly selected...

Ventilatory threshold is one of the ways to measure cardiovasculatory fitness of the body. Therefore, in the present study it was decided to demonstrate which physiological parameters most accurately express the second ventilatory threshold (VAT2) depending on the cardiovasculatory fitness of different groups of athletes and untrained men. The stud...

Suryanamaskar (SN), when followed with sincerity, brings the practitioner many benefits at every level of existence. There are many styles of SN, the author has counted at least 50, and the number of asanas can vary from 10 to 29 in a set. However most styles will traditionally consist of 12 positions. This book focuses on the style called Rishikes...

Introduction: Soccer players are injury prone, and increasing competition - especially at the highest level - leads to increasing training loads, and these may contribute to more injuries to players. Hence, the aim is to increase preventive measures and treatment in this field. Aim: The paper examines soccer players’ susceptibility to injuries occu...

INDIVIDUAL METABOLIC DIFFERENCES DURING DYNAMIC SURYANAMASKAR Krzysztof Stec1, PhD, Karol Pilis1, PhD, Wiesław Pilis, PhD1.2, Cezary Michalski1, PhD 1 Institute of Physical Education, Tourism and Physiotherapy, Jan Dlugosz University in Czestochowa, Poland 2 Institute of Physiotherapy, Public Medical Higher Vocational School, Opole, Poland ABSTRACT...

Obesity is an unfavorable state of health as a result of which come in the initial adaptation, that couldgradually transform into specific disease condition. The aim of the study was to assess the degree ofmiddle-aged men adaptation to obesity in terms of somatic changes, exercise capacity andcardiopulmonary fitness. The study involved 12 obese mid...

Wstęp: Somatyczne wielkości, takie jak masa (Mc) i wysokość ciała (Wc), są używane do wyliczania wskaźników wagowo--wzrostowych i stanowią pomoc w diagnozowaniu nadwagi i otyłości. Cel pracy: Celem pracy jest ocena nadwagi i otyłości kobiet i mężczyzn w świetle prostych wskaźników somatycznych. Materiał i metody: W prezentowanej pracy porównano wsk...

Background: Changes in blood pressure during subjects’ exercise are individually different. The reasons of these differences are unknown. Aim of the study: The aim of this paper is to investigate the rate of changes in cardiovascular system at rest and at physical load which enhance systolic blood pressure (SBP) = 200 mmHg in people with different...

The hypothesis was that yoga training can lead to identifiable and statistically significant improvements in physical and mental health. The objective of the study was to determine the effects of one yogic practice, Dynamic Suryanamaskar, on the physiological, psychological, physical fitness and anthropometric characteristics of a group of Indian h...

A vegetarian diet may be adopted for various reasons that can include ecological, economic, religious, ethical and health considerations. In the latter case they arise from the desire to lose weight, in tackling obesity, improving physical fitness and/or in reducing the risk of acquiring certain diseases. It has been shown that properly applied veg...

Purpose. The objective of the study was to determine the effects of dynamic Surya Namaskar (sun salutations) on the differential chest circumference of selected physical education students at Banaras Hindu University, Varanasi. Basic procedures. The subjects for this study were selected from the Department of Physical Education at Banaras Hindu Uni...

The objective of the study was to determine the effects of dynamic suryanamaskar (sun salutations) on the flexibility of selected physical education students at Banaras Hindu University, Varanasi. The subjects for this study were selected from the Department of physical education at Banaras Hindu University. A total of 20 male subjects were selecte...

The purpose of this study was to determine the effects of Dynamic Suryanamaskar (sun salutations) on anthropometric and physiological variables of selected physical education students at Banaras Hindu University, Varanasi. The subjects were twenty male B.P.Ed. students from the Physical Education Department, Faculty of Arts at Banaras Hindu Univers...

Introduction. Anaerobic power is an important factor determining the physical performance in various kinds of sports. Therefore, the aim of this paper is to present women’s anaerobic power in soccer players (SP), table tennis players (TT) and weightlifters (WL). Methods. This study involved 3 groups of professional athletes women: 15 SP, 12 TT and...