The oxygen pulse as an indicator of O2 transport in the circulatory system has recently been subjected to study and clinical investigations, and not much information has been reported about this cardiovascular variable. The purpose of this study has been the prediction and comparison of maximal O2 pulse in male adolescents. For this purpose, 60 adolescents with a mean (S.D) of age, weight and h...

As children's natural activity patterns are highly intermittent in nature, and characterised by rapid changes from rest to vigorous physical activity, discontinuous exercise tests may be considered ecologically valid for this population group. This study compared the peak physiological responses from a discontinuous and continuous graded exercise test (GXT_D, GXT_C, respectively) during treadmi...

The influence of two-way breathing valves on determining physiological responses during a graded exercise test in recreationally active and endurance trained males" (2016). Abstract The determination of an individual's physiological responses to a graded exercise test (GXT) is a fundamental tool in the field of exercise physiology utilized in clinical, applied and/or research settings. A GXT of...

The main purpose of the present study is to investigate the relationship between anaerobic power achieved in repeated anaerobic exercise and aerobic power. The study group consisted of 40 soccer players (age 17.3 ± 1.36 years). All participants performed 3 tests: a running-based anaerobic sprint test (RAST), a graded treadmill test (GXT), and a multistage fitness test (20mPST). A statistically ...

The purpose of this study was to examine the effects of ingesting JavaFittrade mark Energy Extreme (JEE) on aerobic and anaerobic performance measures in recreationally-active male and female coffee drinkers. Five male (27.6 +/- 4.2 yrs, 93.2 +/- 11.7 kg, 181.6 +/- 6.9 cm) and five female (29 +/- 4.6 yrs, 61.5 +/- 9.2 kg, 167.6 +/- 6.9 cm) regular coffee drinkers (i.e., 223.9 +/- 62.7 mg.d-1 of...

Purpose: In contrast to other aspects of executive functions, acute exercise-induced alterations in planning are poorly investigated. While only few studies report improved planning performances after exercise, even less is known about their time course after exhaustive exercise. Methods: One hundred and nineteen healthy adults performed the Tower of London (ToL) task at baseline, followed by a...

UNLABELLED Techniques including direct Fick and Doppler echocardiography are frequently used to assess hemodynamic responses to exercise. Thoracic impedance has been shown to be a noninvasive alternative to these methods for assessing these responses during graded exercise to exhaustion, yet its feasibility during supramaximal bouts of exercise is relatively unknown. We used thoracic impedance ...

This paper is concerned with the existence and uniqueness of mild solution of the fractional differential equations with nonlocal conditions d q xt/dt q −Axt ft, xt, Gxt, t ∈ 0, T, and x0 gx x 0 , in a Banach space X, where 0 < q < 1. General existence and uniqueness theorem, which extends many previous results, are given.

The purpose of this study was to assess safety via electrocardiographic (ECG), blood pressure (BP), heart rate (HR), and orthopedic responses to 3 different high-intensity interval training (HIIT) protocols in persons with stroke. Eighteen participants (10 male; 61.9 + 8.3 years of age; 5.8 + 4.2 years poststroke) completed a symptom-limited graded exercise test (GXT) with ECG monitoring to scr...

LINDA M. LEMURA, SERGE P. VON DUVILLARD, FRANK STANEK. Time Course Changes And Physiological Factors Related To Central And Peripheral Determinants Of Perceived Exertion In Highly Trained Adolescent Alpine Skiers JEPonline. 2001;4(4):29-40. The purposes of this study were 1) to investigate changes in respiratory-metabolic (central) and peripheral (local) determinants of perceived exertion (RPE)...