We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Metabolic, kinematic and coordinative behavior of a para swimmer with cerebral palsy.
- Authors
DE JESUS, KELLY; CARDOSO, LARISSA M.; DE JESUS, KARLA
- Abstract
BACKGROUND: It has been increasingly necessary to assess and monitor the physiological and biomechanics variables of para swimmers to enlarge the current knowledge on how different impairments limit swimming performance and explain each competition class variability in metabolic and technical terms. AIM: This study aimed to characterize the front crawl metabolic, kinematic, and coordination behaviors of a trained para swimmer subjected to an incremental protocol. METHOD: A 44 year-old male, with moderate right side hemiparesis of the body, performed a 200-m front crawl at 5 incrementally paces until exhaustion (0.05 m/s increases and 30-s intervals), with images from two cycles at each step (at 50, 100, 150, and 200-m laps) recorded by two video cameras (one surface and one underwater). Kinematic and coordinative variables were collected as follows: stroke frequency (SF), stroke length (SL), stroke index (SI), intracyclic velocity variations (IVV), and index of interlimb coordination (IdC), respectively. Lactate concentrations ([La-]), heart rate, and blood pressure were also measured at each step of the incremental protocol. RESULTS: The para swimmer achieved the anaerobic threshold at (or closer to) the fourth 200-m step, followed by an increase in heart rate and blood pressure. Speed and SF were higher and SL was lower along the 200-m steps. In contrast, a slight increase in SI and stability in IVV occurred across intensity increments, and IdC was maintained as a superposition mode. CONCLUSION: The findings suggest that the swimming intensity seems to influence the para swimmer metabolic, kinematic, and coordinative behavior, with sharper alterations after the point when AnT is achieved. In addition to having practical interest for adapted swimming, coaches should emphazise the physiological and biomechanical evaluation on training monitoring to better prescribe and improve the adapted swimming performance.
- Subjects
BRAZIL; ENERGY metabolism; EXPERIMENTAL design; SPORTS for people with disabilities; SWIMMING; CEREBRAL palsy; BIOMECHANICS; ATHLETIC ability; MOTOR ability; VIDEO recording
- Publication
Brazilian Journal of Motor Behavior, 2022, Vol 16, Issue 1, p57
- ISSN
1980-5586
- Publication type
Article
- DOI
10.20338/bjmb.v16i1.265