TOTAL LOAD VOLUME INDUCES SIMILAR MUSCLE HYPERTROPHY AND STRENGTH GAIN IN AGED RATS UNDERGOING RESISTANCE TRAINING AND USE OF ANABOLIC STEROIDS
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Current interpretations indicate that control of total training volume is important in explaining outcomes such as strength gains and muscle hypertrophy in different conditions. However, we do not know whether such facts are true for experimental samples. This study aimed to quantify training parameters and analyze the morphological response of aged muscles submitted to resistance training and anabolic steroids. Aged Wistar rats (20 months-old) were divided into groups: C - initial control (n=6); CF - final control (n=6); CAS - control with anabolic steroid (n=6), RT - resistance training (n=6) and RTA - resistance training with anabolic steroid (n=6). All groups were submitted to adaptation, familiarization and maximum load carrying testing (MLCT). Resistance training (6-8x / session with progressive loads of 50 to 100% MLCT, 3x/week and pause of 120 seconds) was performed in ladder climbing equipment for 15 weeks. The administration of testosterone propionate (TP) was performed 2x/week (10 mg/kg) of the animal in the CAS and RTA groups at the same time of resistance training. After experimental period, animals were euthanized and soleus and plantaris muscle removed and prepared for histochemistry. To compare the groups we used one-way ANOVA (post hoc Tukey), student's t-tests for pre vs post (dependent and independent variables) comparisons and significance level set at p ≤ 0.05. Maximum carryed load, absolute and relative loads increased significantly in RT and RTA (p" "modalidade" => "Comunicação Oral (CO)" "area_tematica" => "AT01 - FISIOLOGIA E BIOQUÍMICA DO EXERCÍCIO; BIODINÂMICA DO RENDIMENTO E TREINAMENTO ESPORTIVO; SAÚDE E REABILITAÇÃO" "palavra_chave" => "ANDROGENIC ANABOLIC STEROID, STRENGHT TRAINING, MOVEMENT, ELDERLY, ELDERLY" "idioma" => "Inglês" "arquivo" => "TRABALHO_EV083_MD1_SA1_ID546_EXT_23042017205850.pdf" "created_at" => "2020-05-28 15:53:16" "updated_at" => "2020-06-09 18:23:09" "ativo" => 1 "autor_nome" => "WALTER KRAUSE NETO" "autor_nome_curto" => "KRAUSE NETO" "autor_email" => "wild_krause@hotmail.com" "autor_ies" => "UNIVERSIDADE SÃO JUDAS TADEU (USJT)" "autor_imagem" => "" "edicao_url" => "anais-x-ciefmh" "edicao_nome" => "Anais do X Congresso Internacional de Educação Fisica e Motricidade Humana e XVI Simpósio Paulista de Educação Física" "edicao_evento" => "X Congresso Internacional de Educação Física e Motricidade Humana e XVI Simpósio Paulista de Educação Física" "edicao_ano" => 2017 "edicao_pasta" => "anais/ciefmh/2017" "edicao_logo" => "5e4a1c2174ebb_17022020015249.png" "edicao_capa" => "5f182a9857128_22072020090128.jpg" "data_publicacao" => null "edicao_publicada_em" => "2017-06-15 00:00:00" "publicacao_id" => 37 "publicacao_nome" => "Anais do CIEFMH" "publicacao_codigo" => "2527-2268" "tipo_codigo_id" => 1 "tipo_codigo_nome" => "ISSN" "tipo_publicacao_id" => 1 "tipo_publicacao_nome" => "ANAIS de Evento" ] #original: array:35 [ "id" => 30150 "edicao_id" => 61 "trabalho_id" => 398 "inscrito_id" => 546 "titulo" => "TOTAL LOAD VOLUME INDUCES SIMILAR MUSCLE HYPERTROPHY AND STRENGTH GAIN IN AGED RATS UNDERGOING RESISTANCE TRAINING AND USE OF ANABOLIC STEROIDS" "resumo" => "The sarcophenic process induces morphological, physiological and molecular changes that direct an exchange in the functional profile of the neuromuscular system of old populations. Resistance training and anabolic steroids are important strategies in controlling these parameters. Current interpretations indicate that control of total training volume is important in explaining outcomes such as strength gains and muscle hypertrophy in different conditions. However, we do not know whether such facts are true for experimental samples. This study aimed to quantify training parameters and analyze the morphological response of aged muscles submitted to resistance training and anabolic steroids. Aged Wistar rats (20 months-old) were divided into groups: C - initial control (n=6); CF - final control (n=6); CAS - control with anabolic steroid (n=6), RT - resistance training (n=6) and RTA - resistance training with anabolic steroid (n=6). All groups were submitted to adaptation, familiarization and maximum load carrying testing (MLCT). Resistance training (6-8x / session with progressive loads of 50 to 100% MLCT, 3x/week and pause of 120 seconds) was performed in ladder climbing equipment for 15 weeks. The administration of testosterone propionate (TP) was performed 2x/week (10 mg/kg) of the animal in the CAS and RTA groups at the same time of resistance training. After experimental period, animals were euthanized and soleus and plantaris muscle removed and prepared for histochemistry. To compare the groups we used one-way ANOVA (post hoc Tukey), student's t-tests for pre vs post (dependent and independent variables) comparisons and significance level set at p ≤ 0.05. 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