The aim of this study was to investigate the effects of adding a high-intensity intermittent session twice a week during a 7-week karate training (KT) on markers of aerobic and anaerobic metabolisms in elite class karate athletes. Two groups were studied: a KT group (n=8, age 20.1+/-0.9 years, 70.0+/-8.8 kg) that followed traditional KT, and a group that followed combined traditional karate and...

ABSTRACT Introduction: In the current Chinese basketball team, many players have a high level of training. However, in official competitions, athletes tend to heart rate problems. Therefore, it is importment monitor and control improve their performance. Objective: To explore intermittent endurance Methods: The researchers selected 28 male from university as research objects. Athletes performed...

The effect of intense training on endothelial proliferation, capillary growth and distribution of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) was examined in human skeletal muscle. Two intermittent knee extensor training protocols (at approximately 150% (Study 1) versus approximately 90% (Study 2) of leg (O(2) max)) were conducted. Muscle biopsies were ob...

The main objective of this study was to examine the chronic effect of simulated intermittent normobaric hypoxia on blood antioxidant defence capacity in swimmers. The study included 14 male and 14 female competitive swimmers performing part of land training under simulated intermittent normobaric hypoxia (O2 = 15.5%) or in normoxia. Land interval training took place twice per week, with a total...

PURPOSE The purpose of this study was to compare the session-RPE method for quantifying internal training load (TL) with various HR-based TL quantification methods in a variety of training modes with women soccer players. METHODS Fifteen elite women soccer players took part in the study (age: 19.3 +/- 2.0 y and VO2max: 50.8 +/- 2.7 mL x kg(-1) x min(-1)). Session-RPE, heart rate, and duration...

Stress-activated gene × environment interactions may contribute to individual variability in blood pressure reductions from behavioral interventions. We investigated effects of endothelin-1 (ET-1) LYS198ASN SNP and discriminatory stress exposure upon impact of 12-week behavioral interventions upon ambulatory BP (ABP) among 162 prehypertensive African American adolescents. Following genotyping, ...

Team sports are characterized by intermittent high-intensity activity patterns. Typically, play consists of short periods of very intense or all-out efforts interspersed with longer periods of low-intensity activity. Fatigue is a complex, multi-factorial process, but intense intermittent exercise performance can potentially be limited by reduced availability of substrates stored in skeletal mus...