Economical and optimal pedalling velocity characteristics during maximal and submaximal efforts on cycloergometer
Journal Title: Biology of Sport - Year 2007, Vol 24, Issue 3
Abstract
This investigation was undertaken in order to verify the hypothesis that there exist some relationship between the optimal and economical pedalling rate in maximal efforts and the economical pedalling speed in submaximal efforts. The 3-min efforts with the space of 7 days between them were performed fourfold on the cycle ergometer (Monark E 824 joined with the computer) by examined subjects during the submaximal efforts test. The effort power amounted to 250 W and mechanical work quantity to 45 kJ. The pedalling speed grew in respective trials in following manner: 40, 60, 80 and 100 rpm. The economical pedalling rate (ve) was defined as such a pedalling which enabled the least oxygen intake by applied load. The cycle ergometer Wingate test with the load equal 7.5% of body weight (BW) was performed during the maximal test by every examined subject. Next, after the interval of at least 3 days they performed 4 trials with the respective loads: 2.5%; 5%; 10% and 12.5% BW according to the Wingate test formula. The end of trial was obtained when the results of work were equal with the 7.5% BW Wingate test ones. Results obtained in the maximal efforts allowed calculation of the force-velocity (F-v) and power-velocity (P-v) dependencies for every experiment participant in purpose of the individual maximal power (Pmax) and optimal speed (vo - pedalling rate by which Pmax occurred) determination. The gas analyser (SensorMedics Co.) was used in order to oxygen intake markings. Average values (±SD) of the net mechanical efficiency (NE) in submaximal efforts for pedalling rates of 40, 60, 80 and 100 rpm amounted respectively: 23.0±1.8; 22.9±2.1; 23.5±2.2 and 19.6±2.8%. Average value of the economical pedalling rate calculated for VO2 net equalled: veVO2net=62.5±21.8 rpm and oxygen usage of VO2min=31.56±2.90 ml∙mn-1 while NE veNE equalled 62.5±14.8 rpm with average NE=23.9±2.5%. Mean values (±SD) of net mechanical capacity in maximal efforts amounted respectively: 12.5±1.5; 17.3±2.3; 18.2±3.2; 19.9±4.7 and 19.1±2.4%. The average maximal power value (Pmax) calculated from the individual dependencies amounted to 1031.6±115.5 W (13.10±1.90 W/kg) by mean optimal frequency vo=109.2±12.0 rpm. Some significant dependencies between optimal pedalling frequency and economical pedalling rate in maximal and submaximal efforts were found namely: negative for the economical pedalling speed calculated from net VO2 (r=-0.51; R2=0.264) and positive for the economical pedalling rate counted from the net mechanical efficiency (r=0.95; R2=0.907). The significant dependency between the economical pedalling speed obtained during the maximal effort and economical pedalling frequency calculated for the submaximal effort (r=0.788; R2=0.622) was stated.
Authors and Affiliations
K Buśko
Keywords
Related Articles
- EP ID EP58912
- DOI -
- Views 147
- Downloads 0
The effect of inhaling concentrated oxygen on performance during repeated anaerobic exercise
The objective of the pilot study was to test the effect of inhaling 99.5% oxygen on recovery. The source of concentrated oxygen was O-PUR (Oxyfit). Research subjects completed two thirty-second Wingate tests at an interv...
INFLUENCE OF TRAINING ON ANAEROBIC POWER AND CAPACITY OF UPPER AND LOWER LIMBS IN YOUNG GRECO-ROMAN WRESTLERS
The aim of the present study was to examine the effect of training on selected markers of anaerobic capacity of upper and lower limbs in male, Greco-Roman wrestlers from 16 to 19 years of age. The study was conducted fou...
PHYSICAL FITNESS AND NUTRITIONAL STATUS OF POLISH GROUND FORCE UNIT RECRUITS
The purpose of the work was to conduct an examination of the physical fitness and nutritional status of recruits (221 men beginning military service in the infantry unit). Soldiers’ physical efficiency was estimated usi...
SEX DIFFERENCES IN THE MOTOR ABILITIES OF YOUNG MALE AND FEMALE HANDBALL PLAYERS
During adolescence, performance of males shows, on average, marked improvements in motor performance tests, while performance of females shows a slight improvement in some motor performance tests and a plateau in others....
BLOOD FLOW RESTRICTED RESISTANCE TRAINING ATTENUATES MYOSTATIN GENE EXPRESSION IN A PATIENT WITH INCLUSION BODY MYOSITIS
Inclusion body myositis is a rare idiopathic inflammatory myopathy that produces extreme muscle weakness. Blood flow restricted resistance training has been shown to improve muscle strength and muscle hypertrophy in incl...