Inter-Limb Coordinative Structure in a 200 m Front Crawl Event

Figueiredo, Pedro; Vilas‐Boas, João Paulo; Seifert, Ludovic; Chollet, Didier; Fernandes, Ricardo J.

doi:10.2174/1875399x010030100025

Cited by 8 publications

(9 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Only the duration of the pull phase had an increase over 200 m in this study (Table 1), confirming the hypothesis previously raised for this variable. These results differ from the findings by Figueiredo et al 4 , who found no intra-phase difference in the four sections of 200 m at maximum intensity. One explanation for this difference may be the speed at which the maximum test was performed in this study compared to the study of Figueiredo et al 4 : in the present study, the speed was, on average, 1.53 ms -1 , while in that study, 1.49 m.s -1 .…”

Section: Discussioncontrasting

confidence: 99%

“…Similar behavior of SS was found for the 200 m front crawl among the 16 finalists of the 200 m freestyle race at the French national championship, among four high competitive level Portuguese swimmers and among six competitive Portuguese swimmers 4 , when SS presented decreased between the first 50 and the last 50 m of the race. The reduction in SL would be related to the inability to maintain the swimming technique, which would allow a larger distance traveled in each stroke cycle, on the other hand, an attempt to eliminate the effect of the reduced SL on the SS values would be to increase SR.…”

Section: Discussionsupporting

confidence: 74%

“…The biomechanics of swimming, the temporal organization of the stroke phases 4,5 , determined by the coordination index (IdC), expressed as a percentage of the average length of the stroke cycles and their durations, appear to be important tools for the evaluation of a swimmer's technique.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Desempenho em 200 m nado crawl: índice de coordenação, tempo propulsivo e cinemática de nado

Franken

Ludwig

Cardoso

et al. 2016

Rev. Bras. Cineantropom. Desempenho Hum.

View full text Add to dashboard Cite

-The aim of this study was to compare coordination index, propulsive time, duration of stroke phases and kinematic parameters over 200 m front crawl. Variables were compared among four sections of 50 m (T1 to T4) in fifteen competitive swimmers (age: 21.1 ± 7.1 years; height: 180.1 ± 6.1 cm; height: 187.3 ± 8, 1 cm; body mass: 72.1 ± 10.1 kg; better performance in the race: 77.5 ± 4.7% of the world record). Data were obtained with two video cameras (60 Hz -coupled to a cart on rails on the side of the pool) for simultaneous images of the swimmer's sagittal plan: below the water line and above the water line. Mean stroke rate stroke length, assumed as the mean distance traveled per cycle, and mean swimming speed were obtained with manual timing. Over the 200 m, the coordination index remained unchanged (p >0.05), but there was an increase in the frequency of cycles (p <0.05) and reduction of distance traveled per cycle (p <0.05). Between T1 and T2, there was an increase in the propulsive time (p <0.05) and between T1 and T4, there was an increase in the length of the pull phase (p <0.05). The swimming speed decreased only between T1 and T2 (p <0.05). Over 200 m front crawl, well-trained swimmers increment propulsive time and pull phase duration and frequency of stroke cycles, and such changes may be due to the speed maintenance attempt over the 200 m.Key words: Efficiency; Kinematics; Swimming. (idade: 21,1 ± 7,1 anos; estatura: 180,1 ± 6,1 cm; envergadura: 187,3 ± 8,1 cm; massa corporal: 72,1 ± 10,1 kg; melhor desempenho na prova: 77,5 ± 4,7% do recorde mundial Resumo -O objetivo deste estudo foi comparar índice de coordenação, tempo propulsivo, duração das fases da braçada e parâmetros cinemáticos ao longo de 200 m nado crawl. Variáveis foram comparadas entre os quatro trechos de 50 m (T1 a T4) em quinze nadadores competitivos

show abstract

Section: Discussioncontrasting

confidence: 99%

Section: Discussionsupporting

confidence: 74%

See 1 more Smart Citation

Desempenho em 200 m nado crawl: índice de coordenação, tempo propulsivo e cinemática de nado

Franken

Ludwig

Cardoso

et al. 2016

Rev. Bras. Cineantropom. Desempenho Hum.

View full text Add to dashboard Cite

show abstract

“…IVV stability seems to be related with a coordinative adaptation of the upper limbs, as IdC changes along the effort, as well as the SR, mainly in the last 50 m lap [45, 46]. IVV ( x , y ) accounted for 15.2% of the variability of the 200 m swim and 13.2% for the 50 m laps.…”

Section: Discussionmentioning

confidence: 99%

Interplay of Biomechanical, Energetic, Coordinative, and Muscular Factors in a 200 m Front Crawl Swim

Figueiredo

Pendergast

Vilas-Boas

et al. 2013

BioMed Research International

Self Cite

View full text Add to dashboard Cite

This study aimed to determine the relative contribution of selected biomechanical, energetic, coordinative, and muscular factors for the 200 m front crawl and each of its four laps. Ten swimmers performed a 200 m front crawl swim, as well as 50, 100, and 150 m at the 200 m pace. Biomechanical, energetic, coordinative, and muscular factors were assessed during the 200 m swim. Multiple linear regression analysis was used to identify the weight of the factors to the performance. For each lap, the contributions to the 200 m performance were 17.6, 21.1, 18.4, and 7.6% for stroke length, 16.1, 18.7, 32.1, and 3.2% for stroke rate, 11.2, 13.2, 6.8, and 5.7% for intracycle velocity variation in x, 9.7, 7.5, 1.3, and 5.4% for intracycle velocity variation in y, 17.8, 10.5, 2.0, and 6.4% for propelling efficiency, 4.5, 5.8, 10.9, and 23.7% for total energy expenditure, 10.1, 5.1, 8.3, and 23.7% for interarm coordination, 9.0, 6.2, 8.5, and 5.5% for muscular activity amplitude, and 3.9, 11.9, 11.8, and 18.7% for muscular frequency). The relative contribution of the factors was closely related to the task constraints, especially fatigue, as the major changes occurred from the first to the last lap.

show abstract

“…O decréscimo conjunto da velocidade e da FG está de acordo com a literatura para nadadores com deficiência física unilateral de membro superior (12,13) . Estes estudos apresentam um aumento da DC com a diminuição da velocidade e da FG, mas os protocolos utilizados não consideram as alterações mecânicas induzidas pela fadiga, como acontece em situação de competição, dado que utilizam um protocolo de velocidade incremental (8) . Complementarmente é válido salientar que, para velocidades elevadas, os nadadores com amputação unilateral de membro superior (classe S8 e S9) utilizam a FG para conseguirem aumentar a velocidade de nado (13) , devido à necessidade de compensarem a falta de segmentos propulsivos (17) .…”

Section: Methodsunclassified