Navegando por Palavras-chave "Swimming training"

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    Efeitos do treinamento de força específico no desempenho de nadadores velocistas treinados com parachute
    (Colégio Brasileiro de Ciências do Esporte, 2010-09-01) Bocalini, Danilo Sales [UNIFESP]; Rica, Roberta Luksevicius; Triviño, Rodrigo Do Nascimento [UNIFESP]; Serra, Andrey Jorge [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Academia Planet Sport; Colégio Arbos de São Bernardo do Campo; Universidade Nove de Julho Programa de Pós-Graduação em Ciências da Reabilitação
    AIM: this study was undertaken to evaluate the role of parachute on specific muscular strength performance at sprinters swimmers. METHODS: twenty sprinter swimmers were randomized in two groups: without (WP, n: 8) and MP: with (MP, n: 12) parachute. The swimmers trained 6 days per week for 12 weeks (1 x day; 2 h). The following performance tests were carried: specific strength (SS) and maintenance time of strength (MSS); swimming velocity in 15m (SV 15) as well as in 50m (SV 50) and stroke number at 50m (SN 50). RESULTS: after training program, there were not changes on SL and SV 15 for both groups. For all the other variables, were showed significant (p < 0,05) improvement to MP group: SS (> 30%); MSS (> 35%); SV 50 (> 16%); SN 50 (< 23%). The WP group only showed a significant improvement on MSS (> 9%). CONCLUSION: the parachute was efficient to improve specific muscular strength parameters as well as performance at 50m test at swimmers sprinters performance
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    Exercise training-induced enhancement in myocardial mechanics is lost after 2 weeks of detraining in rats
    (Springer, 2010-07-01) Bocalini, Danilo Sales [UNIFESP]; Carvalho, Eduardo V. A. [UNIFESP]; Mello de Sousa, Ana Flavia [UNIFESP]; Levy, Rozeli Ferreira [UNIFESP]; Tucci, Paulo J. F. [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Univ Fed Paraiba
    Exercise training is assumed to improve myocardial function; however, the role of detraining and its effect on myocardial parameters are still unclear. the aim of the present study was to evaluate the effect of detraining on ventricular remodeling and myocardial mechanical parameters after an 8 week (5 days/week, 60 min/day) swimming training period. Forty-three female Wistar rats were distributed into six groups: trained (T, n = 9), detrained 2 weeks (D2, n = 8), detrained 4 weeks (D4, n = 8) and their respective controls: untrained (U, n = 5), untrained 2 weeks (U2, n = 5) and untrained 4 weeks (U4, n = 5). Detrained rats underwent training and then remained sedentary (i.e., detraining) for 2 or 4 weeks. After training, the T group demonstrated increased physical capacity, left ventricular (LV) posterior wall thickness, and LV end-diastolic diameter, along with decreased heart rate, as evaluated by echocardiogram. in addition, the inotropism and lusitropism parameters studied on papillary muscles showed improvement in the T group (P < 0.05). However, after just 2 weeks of detraining, all parameters regressed back to values which were similar to those of the untrained groups. in conclusion, our results confirmed that exercise training is capable of inducing myocardial remodeling and improving contractile performance; however, these changes are completely lost after a short period of detraining.