The effects of an anabolic steroid on the strength, body composition, and endurance of college males when accompanied by a weight training program

Fahey, Thomas D.; Brown, Christopher L.

doi:10.1249/00005768-197300540-00012

Cited by 65 publications

(31 citation statements)

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“…It should generally be emphasized th at comparison of results in literature is rather difficult because anabolic effects are influenced by a series of conditions, such as the studied species (2, 3), age (3,14), circulating synergistic hormones (7), muscles (3), androgen (19), dose (2,15,19,29), mode of adm inistration (17), duration of treatment (22,26), activity level (12,15), and diet (11). Indeed, these factors explain to a large extent the inconsistencies in the literature.…”

Section: Discussionmentioning

confidence: 99%

Effects of nandrolone decanoate on respiratory and peripheral muscles in male and female rats

Bisschop

Gayan‐Ramirez²,

Rollier³

et al. 1997

Journal of Applied Physiology

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Bisschop, Anja, G hislaine Gayan-Ramirez, Hélène Rollier, P. N. R ichard D ekhuijzen, René Dom, Vera de Bock, an d Marc D ecram er. Effects of nandrolone decano ate on respiratory and peripheral muscles in male and female rats. J . Appi. Physiol. 82(4): 1112-1118, 1997.-Thirty male and 18 female adult rats received weekly an intramuscular injection of either saline (control; C), 1.5 mg/kg (low-dose; LD) nandrolone decanoate or 7,5 mg/kg (high-dose; HD) nandro lone decanoate during 5 wk. Compared with respective C, growth rate was stunted in male HD rats from 2 wk of treatment on, whereas it was enhanced in female LD and HD rats after 1 wk. Mass of all muscles studied varied proportion ally to body weight, except for the gastrocnemius (males: 0.49 ± 0.04 vs. C: 0.52 ± 0.03%, not significant; females; 0.17 ± 0.01 vs. C: 0.15 ± 0.01%, P < 0.05). In vitro contractile and fatigue properties of the diaphragm remained un changed, except for a decrease in twitch kinetics (time to peak tension: C, 21 ± 2; LD, 19 ± 1; FID, 19 ± 2 ms, P < 0.05; half-relaxation time: C, 26 ± 5, LD, 25 ± 5, HD, 23 ± 3 ms, P < 0.01). Histochemistry of the diaphragm and the gastroc nemius revealed a significant increase in type Ilx/b dimen sions. In the gastrocnemius, type I fiber dimensions also increased. A pair-fed study, including another 24 female rats, showed that the changes in oral food intake only partly accounted for the observed anabolic effects.

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Section: Discussionmentioning

confidence: 99%

Effects of nandrolone decanoate on respiratory and peripheral muscles in male and female rats

Bisschop

Gayan‐Ramirez²,

Rollier³

et al. 1997

Journal of Applied Physiology

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“…Por exemplo, Vincent et al (23) utilizaram um cicloergômetro para mensuração da aptidão aeróbia e Frontera et al (28) implementaram um programa de treinamento que contemplou apenas os membros inferiores. Outros estudos sinalizaram resultados similares, mas avaliaram a aptidão aeróbia por métodos indiretos (14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29) . Em contrapartida, Ades et al (18) , em indivíduos com idade igual ou superior a 65 anos, relataram que após 12 semanas de programa de treinamento de força não foi observada alteração no consumo máximo de oxigênio.…”

Section: Discussionunclassified

“…De fato, estudos envolvendo jovens e pessoas de meia-idade não demonstraram melhorias significativas na capacidade aeróbia em decorrência do TR (20)(21)(22) . Em idosos, poucos estudos examinaram essa temática e os resultados não são consensuais.…”

Section: Introductionunclassified

Efeitos de 24 semanas de treinamento resistido sobre índices da aptidão aeróbia de mulheres idosas

Guido

Lima

Benford

et al. 2010

Rev Bras Med Esporte

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RESUMOIntrodução e objetivo: O consumo de oxigênio pico (VO 2 pico) e o limiar anaeróbio (LA) são amplamente aceitos como importantes medidas da aptidão aeróbia. Tradicionalmente, o treinamento aeróbio é visto como o principal meio de se aumentar esses índices. Em contrapartida, o treinamento resistido (TR) não é tipicamente prescrito para este fim. Em indivíduos idosos, tem sido sugerido que o TR é capaz de aprimorar a capacidade aeróbia; entretanto, a temática é controversa. O objetivo do presente estudo foi verificar os efeitos do treinamento resistido sobre índices da capacidade aeróbia de mulheres idosas. Metodologia: Participaram voluntariamente 50 idosas, as quais foram distribuídas em dois possíveis grupos: grupo controle (GC -n = 25; idade média 68,00 ± 6,38) e grupo treinamento (GT -n = 25; idade média 68,04 ± 6,78 anos). Todas as participantes realizaram teste ergoespirométrico em esteira conduzido até a exaustão voluntária antes e após a intervenção. O GT foi submetido a um programa de TR para os principais grupos musculares três vezes por semana durante um período de 24 semanas. Ao GC foi solicitado que mantivessem suas rotinas habituais. Split plot Anova foi utilizada para verificar possíveis diferenças intra e intergrupos. Resultados: Foi observado que o GT apresentou aumento significativo nas variáveis tempo de teste e VO 2 , tanto no momento do LA como no momento da exaustão. No GC nenhuma das variáveis dependentes sofreu alteração significativa. Conclusão: Conclui-se que 24 semanas de TR é capaz de promover melhora no desempenho durante teste de esforço cardiopulmonar em uma amostra de mulheres idosas. Futuros estudos serão importantes para elucidar os mecanismos responsáveis por tais adaptações.Palavras-chave: envelhecimento, capacidade aeróbia, treinamento de força, sarcopenia. ABSTRACTIntroduction and objectives: Peak oxygen uptake (VO 2 peak) and anaerobic threshold (AT) have been widely accepted as important predictors of aerobic fitness. Traditionally, aerobic training is viewed as the main way to increase these indices. Conversely, resistance training (RT) is not typically prescribed for this purpose. In elderly subjects, it has been suggested that RT may increase aerobic capacity; however, the literature is controversial. The purpose of the present study was to verify the effects of 24 weeks of RT on aerobic capacity indexes of elderly women. Methods: Fifty elderly women voluntarily took part in this study and were divided into two possible groups: control group (CG -n=25; mean age of 68.00 ± 6.38 years) and training group (TG -n=25; mean age of 68.04 ± 6.78 years). All volunteers underwent cardiopulmonary exercise test on treadmill until volitional exhaustion before and after the intervention period. A split plot ANOVA test was used to examine differences within and between groups. Results: It was observed that the TG exhibited significant increase in the variables time of test and oxygen uptake for both AT and exhaustion moments. The CG did not show any significant alterations for any...

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“…Endurance exercise is traditionally usedas the primary method of increasing aerobic capacity, while resistance exercise is not typically considered for improving aerobic capacity [7]. Hurley et al [10] and Hickson et al [9] found that young and middle aged subjects using resistance exercise regimens did not significantly improve their aerobic capacity.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Resistance Exercise on Aerobic Capacity for Old Adults and CAD Patients

Yoon¹,

Jin²,

YiSub³

2008

Journal of Life Science

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Aerobic capacity is an important health indicator which is related to the probability of disease, disability, and mortality. Typically, endurance exercise is known as the primary method of improving aerobic capacity. Although most of resistance exercises are not considered for a good method increasing aerobic capacity, low to moderate intensity resistance exercise with short rest periods may improve aerobic capacity, especially old adults and most low to moderate risk patients suffering from CAD. This review is to understand that a number of physiological changes occur during both aerobic and resistance exercise, and to support that resistance exercise has advantages for improving aerobic capacity.

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The effects of an anabolic steroid on the strength, body composition, and endurance of college males when accompanied by a weight training program

Cited by 65 publications

References 0 publications

Effects of nandrolone decanoate on respiratory and peripheral muscles in male and female rats

Effects of nandrolone decanoate on respiratory and peripheral muscles in male and female rats

Efeitos de 24 semanas de treinamento resistido sobre índices da aptidão aeróbia de mulheres idosas

The Effect of Resistance Exercise on Aerobic Capacity for Old Adults and CAD Patients

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