Effect of rest duration between sets on fatigue and recovery after short intense plyometric exercise.

Plyometric training is characterized by high-intensity exercise which is performed in short term efforts divided into sets. The purpose of the present study was twofold: first, to investigate the effects of three distinct plyometric exercise protocols, each with varying work-to-rest ratios, on muscle fatigue and recovery using an incline-plane training machine; and second, to assess the relationship between changes in lower limb muscle strength and power and the biochemical response to the three exercise variants employed. Forty-five adult males were randomly divided into 3 groups (n = 15) performing an exercise of 60 rebounds on an incline-plane training machine.

Metabolic Risk Factors in Young Men With Healthy Body Fat But Different Level of Physical Activity.

The study was performed to evaluate metabolic risk in young lean individuals characterized by different physical activity. A total of 194 students (93 active with 5-7 h weekly physical activity and 101 inactive) were accepted for the study. The following percentages of body fat were accepted as characteristic for lean men: 14% to 17% in active and 18% to 24% in inactive participants.

Effect of concentric vs. eccentric variant of lower limbs plyometric training on biomechanical and biochemical parameters.

The study aimed to compare the effectiveness of two variants of 4 weeks plyometric training involving jumping up (dominance of concentric muscle work, UP) and jumping down (dominance of eccentric muscle work, DOWN) the stairs. Twenty-six young men were divided into two groups: UP ( = 13) and DOWN ( = 13). Control measurements of the muscle torques, vertical jumps, and creatine kinase (CK) activity were performed every week.

Changes in Anthropometry and Selected Metabolic Parameters in Young Men During Their First Year of Study at a University of Physical Education.

This study aims to determine main health-related anthropometric and metabolic parameters in young physically active male students in their first year of study. Sixty one male students from a Polish university of physical education were studied twice-at the beginning of their first and second academic years. Body weight, height, waist circumference, and body composition were measured.

Somatic characteristics and motor fitness of elite and sub-elite Polish male badminton players.

Background: An appropriate level of somatic and fitness traits is believed to contribute to success in an international badminton competitions however, these have not been sufficiently explored in elite Polish badminton players. Therefore, the aim of the study was to assess somatic build and physical fitness of elite and sub-elite Polish badminton players and to identify key traits that determine achieving sporting success in badminton.

Methods: The study participants comprised 20 men from the Polish Badminton National Teams A (elite; N.

Body shape index versus body mass index as correlates of health risk in young healthy sedentary men.

Recently a new simply calculated index of body composition -a body shape index (ABSI) has been introduced as an index more reliable than BMI of association between body composition and all-cause mortality. However, until now associations between ABSI and metabolic risk factors have not been evaluated. A total of 114 male university students not engaged in any planned physical activity participated in the present study.

Relationship between the percentage of body fat and surrogate indices of fatness in male and female Polish active and sedentary students.

Background: Limited data have indicated that body mass index (BMI), waist circumference (WC), waist to hip ratio (WHR) and waist to height ratio (WHtR) of athletes and young adults provide misleading results concerning body fat content. This study was aimed at the evaluation of the relationship between different surrogate indices of fatness (BMI, WC, WHR, WHtR and body adiposity index (BAI)) with the percentage of body fat in Polish students with respect to their sex and physical activity.

Methods: A total of 272 students volunteered to participate in the study.

Evaluation of the effectiveness of training on a machine with a variable-cam.

The aim of the study was to assess the effectiveness of the training of elbow flexors through the use of 2 machines, one of which was equipped with a disc plate of constant radius, the other one with a variable-cam having a radius adjustable to muscle strength. The experiment included 45 men divided into 3 equal groups: training group A (variable-cam), training group B (circle), and control group C. The training lasted for 8 weeks, 3 times a week.

Variability in HOMA-IR, lipoprotein profile and selected hormones in young active men.

Resistance to insulin actions is contributing to many metabolic disturbances. Such factors as age, sex, nutrition, body fat, and physical activity determine body insulin resistance. Present study attempted to asses insulin resistance and its metabolic effects with respect to energy intake in young, lean, and active men.

[Fat content in young adults determined by skinfolds and body composition analyzator].

Introduction: Body composition analysis is essential in assessing the nutritional status, as well as the risk of developing diseases associated with abnormal body fat content. At present, many methods are available to measure the amount and distribution of body fat. Among them, of particular importance are those methods that are simple, do not require expensive equipment and allow the assessment of the body composition of a large number of people (population study).

The physique and body composition of students studying physical education: a preliminary report.

Introduction: Young people who study physical education are a priori regarded as having proper body structure and body composition. This assumption cannot be confirmed in the subject literature.

Aim Of The Study: To determine the basic auxological parameters in youth who study physical education.

[Physical activity for young adults born with low body weight on the background of peers].

Introduction: Low birth parameters are associated with an increased risk of insulin resistance, type 2 diabetes, glucose intolerance and hypertension at later life. Regular physical activity can counteract these metabolic disorders.

The Aim Of The Study: We determined the relation of the declared physical activity and body composition in young adults with respect to their birth weight.

[Incidence of low birth weight in academic youth].

Introduction: Birth parameters are used to evaluate infant's maturity and to indicate children with a potential risk of growing disorders and metabolic complications in later life. Low birth weight can be connected with higher fat content, especially in the abdominal part in adult individuals. Low birth weight is recognized as one of the criteria of metabolic syndrome in non-obese individuals.

[Retrospective assessment of growth monitoring of subjects born between 1989-1991].

Introduction: Systematically taken measurements of body length, and--after 18 months of life--height, facilitate the correct monitoring of the course of physical development in children and teenagers. Measuring body mass only is incorrect and may lead to a faulty evaluation of the patient's condition.

Aim Of Study: Assessment of frequency of measurements of body mass and height during the developmental period among students born between 1989-1991.

Plasma TBARS, blood GSH concentrations, and erythrocyte antioxidant enzyme activities in regularly menstruating women with ovulatory and anovulatory menstrual cycles.

Background: Vigorous physical activity and subsequent depressed ovarian hormone secretion resulting in anovulatory menstrual cycles can affect erythrocyte antioxidant system in premenopausal women and contribute to attenuated protection against oxidative stress.

Methods: A total of 17 regularly menstruating women participated in the study. Prospective subjects monitored their basal body temperature (BBT) for 3 months prior to the study.