Study of autonomic, metabolic and functional adaptations arising from the use of selective loads system during macrocycle training in basketball players.

Author(s)

José Henrique Mazon

• Document type: Doctoral Thesis
• Press: Ribeirão Preto.
• Institution: Universidade de São Paulo (USP). Faculdade de Medicina de Ribeirão Preto (PCARP/BC)
• Defense date: 2015-11-06

Examining board members

Hugo Celso Dutra de Souza; João Paulo Borin; Aparecida Maria Catai; Enrico Fuini Puggina; Paulo Roberto Pereira Santiago

• Advisor: Hugo Celso Dutra de Souza

Abstract

We investigated in basketball athletes, adaptations arising from the use of selective loads periodization system (SLS) on the autonomic modulation of heart rate variability (HRV), baroreflex sensitivity (BRS), anaerobic threshold (AT), endogenous stress markers and functional performance during macrocycle training. Twenty two male athletes were evaluated in four specific times of the macrocycle (early preparation period, P1, start and end of the competition period second, P2 and P3; end of the competition period third, P4). HRV was investigated in the time domain (RMSSD- square root of the mean of the squared differences of successive adjacent RR intervals) in the frequency domain (spectral analysis by Fourier Fast Transform) and also through symbolic analysis. The BRS was evaluated by method of sequence. Cardiopulmonary exercise and laboratory tests were also performed to determine the anaerobic threshold, plasma levels of catecholamines, cortisol, free testosterone, urea and creatine kinase. Additionally, muscle strength (isokinetic dynamometer) and jump power (force platform) were evaluated to determine the functional capacity of the lower limbs. The results showed that the training system used did not promote changes in autonomic modulation of HRV and BRS. In turn, there were changes in parameters related to the AT, suggesting possible improvement of the aerobic capacity of athletes. With regard to metabolic markers, reductions were observed in the plasma catecholamines and cortisol, which seem to reflect adjustments positive of the workload used during the training macrocycle. Finally, no difference it was observed in muscle strength and jump power of athletes, suggesting that the performance these physical capacities in the present study, it seems related to the structure and specificity of workloads used during the macrocycle and may not reflect the effectiveness of the training program in question. (AU)

• FAPESP's process: 12/04299-8 - STUDY OF AUTONOMIC, METABOLIC AND FUNCTIONAL ADAPTATIONS RESULTING FROM THE USE OF SELECTIVE LOAD SYSTEM DURING A TRAINING MACRO-CYCLE IN BASKETBALL ATHLETES.
• Grantee: José Henrique Mazon
• Support Opportunities: Scholarships in Brazil - Doctorate