Changes in breathing pattern and cycling efficiency as a result of training with added respiratory dead space volume
Journal Title: Human Movement - Year 2013, Vol 14, Issue 3
Abstract
Purpose. The aim of this study was to evaluate the impact of training with added respiratory dead space volume (ARDSV) on changes in a breathing pattern and cycling efficiency. Methods. Twenty road cyclists were equally divided into an experimental (E) and control (C) group. All of them were involved in a training program that included endurance training (at moderate intensity) and interval training (at maximal intensity). During semi-weekly endurance training, ARDSV (1000cm3 tube) was introduced in the experimental group. Respiratory parameters, including, among others, oxygen uptake (VO2), carbon dioxide excretion (VCO2), end-tidal partial pressure of carbon dioxide (PETCO2), pulmonary ventilation (VE), tidal volume (TV) and total work done during the tests (W), were measured before and after the experiment by a progressive and continuous test. Results. Higher PETCO2 and TV in both groups during the progressive and continuous tests were observed. VCO2 increased in group E during continuous test, while for group C only in the first four minutes of the test. VO2 and VE increased only in group E during submaximal and maximal exercise. Total work increased during the continuous test in both groups (significantly higher in group C than E). However, total work during the progressive test increased only in group E. Conclusions. Training with ARDSV improved exercise capacity at maximal effort and was associated with an increase in maximal oxygen uptake. On the other hand, this type of training lead to a decrease in cycling efficiency, reducing in effect the benefits associated with an increase in VO2max and reducing the ability to perform submaximal effort.
Authors and Affiliations
Paulina Hebisz, Rafał Hebisz, Marek Zatoń
Physical activity and fitness of adults aged 20–59 years
Purpose. The aim of the study was to check whether and to what extent leisure-time physical activity and commuting activity constitute a factor differentiating physical fitness in a selected group of females and males ag...
THE RELATIONSHIP AMONG THE SOMATIC CHARACTERISTICS, AGE AND COVERED DISTANCE OF FOOTBALL PLAYERS
Purpose. The aim of this article was to define the somatic characteristics, BMI index, age and total distance covered of football players who participated in the 2008 European Football Championships. The article al...
Gait asymmetry during dual-task obstacle crossing in the young and elderly
Purpose. To evaluate gait asymmetry during obstacle crossing by young and elderly adults performing normal and dual-task gait. Methods. Ten healthy young adults and ten elderly adults with mild cognitive impairment perfo...
THE EFFECT OF TWO ADDITIONAL DRY-LAND ACTIVE WARM-UP PROTOCOLS ON THE 50-M FRONT-CRAWL SWIMMING PERFORMANCE
Purpose. The purpose of the study was to compare the effectiveness of 2 different dry-land active warm-up protocols on 50-m front-crawl swimming performance, biomechanical variables (stroke rate, stroke length, and strok...
Characteristics of body tissue composition and functional traits in junior football players
Purpose. The aim of this study was to examine the body tissue composition and functional traits of young football players. Methods. Analysis was performed on 23 junior football players. Body mass and height were measured...