Autonomic modulation of heart rate in paraplegic wheelchair basketball players: Linear and nonlinear analysis

2013 ◽  
Vol 31 (4) ◽  
pp. 396-404 ◽  
Author(s):  
Antonio Roberto Zamunér ◽  
Ester Silva ◽  
Rosana Macher Teodori ◽  
Aparecida Maria Catai ◽  
Marlene Aparecida Moreno
2013 ◽  
Vol 177 (1) ◽  
pp. 53-54
Author(s):  
A.R. Zamunér ◽  
M.A.A. Vera ◽  
I.L. Ribeiro ◽  
R.S. Zuttin ◽  
T.F. Salvini ◽  
...  

2010 ◽  
Vol 5 (3) ◽  
pp. 301-315 ◽  
Author(s):  
Louise Croft ◽  
Suzanne Dybrus ◽  
John Lenton ◽  
Victoria Goosey-Tolfrey

Purpose:To examine the physiological profiles of wheelchair basketball and tennis and specifically to: (a) identify if there are differences in the physiological profiles of wheelchair basketball and tennis players of a similar playing standard, (b) to determine whether the competitive physiological demands of these sports differed (c) and to explore the relationship between the blood lactate [Bla−] response to exercise and to identify the sport specific heart rate (HR) training zones.Methods:Six elite athletes (4 male, 2 female) from each sport performed a submaximal and VO2 peak test in their sport specific wheelchair. Heart rate, VO2, and [Bla−] were measured. Heart rate was monitored during international competitions and VO2 was calculated from this using linear regression equations. Individual HR training zones were identified from the [Bla–] profile and time spent within these zones was calculated for each match.Results:Despite no differences in the laboratory assessment of HRpeak, the VO2peak was higher for the basketball players when compared with the tennis players (2.98 ± 0.91 vs 2.06 ± 0.71; P = .08). Average match HR (163 ± 11 vs 146 ± 16 beats-min–1; P = .06) and average VO2 (2.26 ± 0.06 vs 1.36 ± 0.42 L-min-1; P = .02) were higher during actual playing time of basketball when compared with whole tennis play. Consequently, differences in the time spent in the different training zones within and between the two sports existed (P < .05).Conclusions:Wheelchair basketball requires predominately high-intensity training, whereas tennis training requires training across the exercise intensity spectrum.


Retos ◽  
2016 ◽  
pp. 54-58 ◽  
Author(s):  
Aitor Iturricastillo Urteaga ◽  
Javier Yanci Irigoyen ◽  
Itziar Barrenetxea Iriondo ◽  
Cristina Granados Dominguez

El principal objetivo del estudio fue analizar la intensidad de juego en jugadores de baloncesto en silla de ruedas (BSR) durante los partidos de play-off. En este estudio participaron nueve jugadores masculinos de BSR de primera división (34,8 ± 7,8 años). En total se analizaron seis partidos y los participantes fueron divididos en tres grupos según los minutos jugados: jugadores que jugaron 30-40 minutos (BSR30-40), jugadores que jugaron 20-29 minutos (BSR20-30) y los que jugaron entre 1 segundo y 19 minutos (BSR1-19). Durante todos los partidos se monitorizó la frecuencia cardíaca (FC), y además, se obtuvo la temperatura timpánica y la concentración de lactato sanguíneo antes e inmediatamente después de cada partido. Se encontraron diferencias significativas (P<0,05) en todas las zonas de intensidad entre el grupo BSR30-40 y BSR1-19. Los jugadores BSR30-40 pasaron un 36,4% del tiempo total por encima del 85% de la FCmáx, mientras que los jugadores BSR20-30 y BSR1-19 solo pasaron un 16,1 y un 9,2% del tiempo total. En todos los grupos tanto la temperatura timpánica (1,5-2,0%, P<0,05) como la concentración de lactato (81,1-125,0%, P<0,05) aumentó significativamente. Los resultados obtenidos en nuestro estudio exponen que los jugadores del grupo BSR30-40 pasaron mayor porcentaje de tiempo a alta intensidad (>85% de la FCmáx), con un aumento significativo de la temperatura y la concentración de lactato sanguíneo. Los entrenadores y preparadores físicos deberían tener en cuenta estas diferencias fisiológicas en función de los minutos jugados a la hora de planificar la temporada y los descansos post partido.Abstract. The main objective of the study was to analyze the game intensity in wheelchair basketball players (WB) during play-off matches. This study involved nine WB players of Spanish first division league (34.8 ± 7.8 years). Six play-off matches were analyzed and participants were divided into three groups according to the minutes they had played: players who had played between 30-40 minutes (WB30-40), players who had played between 20-30 minutes (WB20-30) and players who had played between 1 second and 20 minutes (WB1-19). For every game the heart rate (HR) was monitored by telemetry, and in addition, the tympanic temperature and blood lactate concentration samples were obtained before and immediately after each match. Significant differences (P<0.05) were observed in all intensity zones between WB30-40 and WB1-19 groups. The WB30-40 players spent 36.4% of the total time over 85% of maximum HR, while WB20-30 and WB1-19 players only spent 16.1 and 9.2% of the total time. Moreover, in all groups both tympanic temperature (from 1.5 to 2.0%, P<0.05) and lactate concentration (81.1 to 125.0%, P <0.05) increased significantly. The game intensity monitored by HR is different for WB players according to the minutes they had played (WB30-40, WB20-30 and WB1-19). The results of our study showed that the WB30-40 group obtained higher percentage of time spent at high intensity (> 85% of maximum HR) than other groups, with a significant increase in body temperature and blood lactate concentration. Coaches and physical trainers should be aware of these physiological differences when planning the season and post-match sessions.


2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Thierry Weissland ◽  
Arnaud Faupin ◽  
Benoit Borel ◽  
Serge Berthoin ◽  
Pierre-Marie Leprêtre

A bioenergetical analysis of manoeuvrability and agility performance for wheelchair players is inexistent. It was aimed at comparing the physiological responses and performance obtained from the octagon multistage field test (MFT) and the modified condition in “8 form” (MFT-8). Sixteen trained wheelchair basketball players performed both tests in randomized condition. The levels performed (end-test score), peak values of oxygen uptake(VO2peak), minute ventilation(VEpeak), heart rate(HRpeak), peak and relative blood lactate (Δ[Lact−] = peak – rest values), and the perceived rating exertion (RPE) were measured. MFT-8 induced higherVO2peakandVEpeakvalues compared to MFT (VO2peak: 2.5 ± 0.6 versus 2.3 ± 0.6 L·min−1andVEpeak: 96.3 ± 29.1 versus 86.6 ± 23.4 L·min−1;P<0.05) with no difference in other parameters. Significant relations betweenVEpeakand end-test score were correlated for both field tests(P<0.05). At exhaustion, MFT attained incompletelyVO2peakandVEpeak. Among experienced wheelchair players, MFT-8 had no effect on test performance but generates higher physiological responses than MFT. It could be explained by demands of wheelchair skills occurring in 8 form during the modified condition.


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