Impact of home-based aerobic training combined with food orientation on food consumption, daily physical activity and cardiorespiratory fitness among breast cancer survivors: six-month clinical trial

ABSTRACT BACKGROUND: Anticancer treatment gives rise to adverse effects such as increased pain and changes to body weight and menstrual cycles, with negative effects on activities of daily living. OBJECTIVE: To analyze the effect of food orientation combined with supervised (face-to-face, FF) versus home-based (HB) aerobic training on lifestyle (food consumption and daily physical activity (PA) levels), body composition, metabolic profile and cardiorespiratory fitness, among breast cancer survivors. DESIGN AND SETTING: Clinical trial study (six months) conducted at a public university in Presidente Prudente, Brazil. METHODS: Twenty-three female breast cancer survivors (40-75 years old) were allocated to aerobic training groups, either FF or HB. Both groups were trained and received food orientation. They were evaluated through a dietary record, ergometric treadmill test and blood test and the Baecke questionnaire. RESULTS: After six months, both groups had reduced their lipid levels, total energy consumption and polyunsaturated fat intake, and had increased their PA levels and treadmill test durations. However, only the HB showed reduced carbohydrate percentage and increased folic acid; and only the FF showed reduced lipid, saturated fat and sodium levels, along with increased carbohydrate and protein levels. No differences in body composition or metabolic profile were found. CONCLUSIONS: These results demonstrated the feasibility of HB aerobic training. In isolation, HB showed greater regulation of carbohydrate percentage and increased folic acid levels. Moreover, these breast cancer survivors presented improvements in food consumption, PA levels and cardiorespiratory fitness, while also maintaining their body composition and metabolic profile after the intervention, independent of the group.

Impact of home-based aerobic training combined with food orientation on food consumption, daily physical activity and cardiorespiratory fitness among breast cancer survivors: six-month clinical trial.

BACKGROUND: Anticancer treatment gives rise to adverse effects such as increased pain and changes to body weight and menstrual cycles, with negative effects on activities of daily living. OBJECTIVE: To analyze the effect of food orientation combined with supervised (face-to-face, FF) versus home-based (HB) aerobic training on lifestyle (food consumption and daily physical activity (PA) levels), body composition, metabolic profile and cardiorespiratory fitness, among breast cancer survivors. DESIGN AND SETTING: Clinical trial study (six months) conducted at a public university in Presidente Prudente, Brazil. METHODS: Twenty-three female breast cancer survivors (40-75 years old) were allocated to aerobic training groups, either FF or HB. Both groups were trained and received food orientation. They were evaluated through a dietary record, ergometric treadmill test and blood test and the Baecke questionnaire. RESULTS: After six months, both groups had reduced their lipid levels, total energy consumption and polyunsaturated fat intake, and had increased their PA levels and treadmill test durations. However, only the HB showed reduced carbohydrate percentage and increased folic acid; and only the FF showed reduced lipid, saturated fat and sodium levels, along with increased carbohydrate and protein levels. No differences in body composition or metabolic profile were found. CONCLUSIONS: These results demonstrated the feasibility of HB aerobic training. In isolation, HB showed greater regulation of carbohydrate percentage and increased folic acid levels. Moreover, these breast cancer survivors presented improvements in food consumption, PA levels and cardiorespiratory fitness, while also maintaining their body composition and metabolic profile after the intervention, independent of the group.

Factors associated with self-assessment of body weight in women who work out at fitness centers / Fatores associados à autoavaliação do peso corporal em mulheres praticantes de academia

Abstract This study analyzed factors associated with self-assessment of body weight (SABW) among women who engage in physical exercises at fitness centers. Data collection was conducted at the largest fitness centers in the city of Presidente Prudente, SP, Brazil, with a sample of 200 women with a mean age of 25.5±9.7 years. A questionnaire with responses on a Likert scale was used to conduct SABW. Independent variables analyzed were: consulting with a nutritionist, chronological age, nutritional status (by BMI), perceived quality of life and marital status. The chi-square test and binary logistic regression were used for analysis (p<5%). A high proportion of women self-assessed their body weight in categories other than "normal" (59% [95%CI: 52.2-65.8]), and women with excess weight were more likely to do so (3.70 [95%CI: 1.83-7.49]), as were those with worse perceived quality of life (p=0.001). The women were asked which parts their bodies they wished to change and the abdominal region was the only part that had an association with self-assessment of body weight. There was a high rate of women who self-assessed their body weight in categories other than the option "normal" and this outcome was associated with worse perceived quality of life and having excess weight. Additionally, the major focus of concern for these women was the abdominal region.

Resumo Analisar os fatores associados à autoavaliação do peso corporal (AAPC) em mulheres praticantes de exercícios físicos em academias. A coleta de dados foi realizada nas maiores academias da cidade de Presidente Prudente-SP, sendo a amostra constituída por 200 mulheres com idade média de 25,5±9,7 anos. A AAPC foi realizada mediante o preenchimento de questionário com opções de resposta em escala de Likert. As variáveis independentes analisadas foram: acompanhamento com nutricionista, idade cronológica, estado nutricional (avaliado pelo IMC), percepção da qualidade de vida e estado civil. O teste qui-quadrado e a regressão logística binária foram utilizados (p<5%). Encontrou-se elevada proporção de mulheres que autoavaliaram seu peso corporal em outras categorias diferentes da opção normal (59% [IC95%: 52,2-65,8]), sendo que as mulheres com excesso de peso apresentaram uma probabilidade maior dessa ocorrência (3,70 [IC95%: 1,83-7,49]), similarmente àquelas com menor percepção da qualidade de vida (p=0,001). Dentre as partes corporais avaliadas, a insatisfação com a região abdominal foi a única que apresentou associação com a autoavaliação do peso corporal. Existe elevada ocorrência de mulheres que autoavaliaram seu peso corporal em outras categorias diferentes da opção normal, as quais estão associadas às piores percepções de qualidade de vida e excesso de peso. Além disso, a região abdominal parece ser um foco central de preocupação nessas mulheres.

Short-term changes in handgrip strength, body composition, and lymphedema induced by breast cancer surgery / Alterações a curto prazo na força de preensão palmar, composição corporal e linfedema induzido pela cirurgia do câncer de mama

PURPOSE: This study investigated short-term changes in body composition, handgrip strength, and presence of lymphedema in women who underwent breast cancer surgery. METHODS: Ninety-five women participated in a cross-sectional study, divided into two groups: Control (n=46), with healthy women, and Experimental (n=49), with women six months after breast cancer surgery . The Experimental Group was subdivided into right total mastectomy (RTM, n=15), left total mastectomy (LTM, n=11), right quadrant (RQ, n=13), and left quadrant (LQ, n=10). It was also redistributed among women with presence (n=10) or absence (n=39) of lymphedema. Presence of lymphedema, handgrip strength, and body composition were assessed. RESULTS: Trunk lean mass and handgrip strength were decreased in the Experimental Group. Total lean mass was increased in the LTM compared to RTM or LQ. Left handgrip strength in LTM was decreased compared to RTM and RQ and in LQ compared to RTM and RQ. Finally, total lean mass, trunk fat mass, trunk lean mass, right and left arm lean mass were increased in women with lymphedema. CONCLUSIONS: Breast cancer survivors have changes in their body composition and in handgrip strength six months after surgery; however, the interaction between the type of surgery and its impact is unclear. Furthermore, women who developed lymphedema in this period showed more significant changes in the body composition, but they were not enough to cause impairment in handgrip strength. .

OBJETIVO: Este estudo investigou alterações de curto prazo na composição corporal, na força de preensão palmar e na presença de linfedema em mulheres submetidas à cirurgia do câncer de mama. MÉTODOS: Noventa e cinco mulheres participaram de um estudo transversal, sendo divididas em dois grupos: Controle (n=46), mulheres saudáveis, e Experimental (n=49), mulheres seis meses após cirurgia do câncer de mama. O Grupo Experimental foi subdividido em mastectomia total direita (RTM, n=15), mastectomia total esquerda (LTM, n=11), quadrantectomia direita (RQ, n=13) e quadrantectomia esquerda (LQ, n=10). Também foi redistribuído entre mulheres com presença (n=10) ou ausência (n=39) de linfedema. Foram avaliadas a presença de linfedema, a força de preensão palmar e a composição corporal. RESULTADOS: A massa magra de tronco e a força de preensão palmar estavam diminuídas no Grupo Experimental. Massa magra total estava aumentada na LTM comparada à RTM ou LQ. Força de preensão palmar esquerda na LTM estava diminuída comparada à RTM e RQ e em LQ comparada à RTM e RQ. Finalmente, massa magra total, magra e gorda de tronco e massa magra de braço esquerdo e direito estavam aumentadas em mulheres com linfedema. CONCLUSÕES: Sobreviventes do câncer de mama possuem alterações na composição corporal e na força de preensão palmar seis meses após a cirurgia, porém a interação entre o tipo de cirurgia e seu impacto não está clara. Além disso, mulheres que desenvolveram linfedema neste período mostraram alterações mais significantes na composição corporal, mas que não foram suficientes para causar prejuízo na força de preensão palmar. .

Effect of concurrent training on risk factors and hepatic steatosis in obese adolescents.

OBJECTIVE To analyze the effects of a 20-week concurrent training on the variables of body composition, lipid profile, and fatty liver diagnosis in obese adolescents. METHODS An open clinical trial was carried out with 34 obese adolescents aged between 12 and 15 years. Total body fat, trunk fat mass, total cholesterol and its fractions (HDL, LDL and VLDL), and triglycerides were analyzed; an upper abdominal ultrasound was performed in order to diagnose fatty liver. The participants underwent concurrent training (association of weight training with aerobic training) three times per week, lasting one hour for 20 weeks. Statistical analysis included paired Student's(tm)s t-test and frequency analysis in order to verify the relative and absolute reductions of fatty liver diagnosis, being significant p<0.05. RESULTS The studied adolescents showed statistically significant improvement in body composition, with a decrease of total body fat percentage, total fat mass, trunk fat, and an a increase in the lean body mass. They also presented reduced size of liver lobes, decrease in total cholesterol and in LDL-cholesterol, with a lower prevalence of fatty liver. CONCLUSIONS The concurrent training was effective for promoting significant improvements in body fat composition and lipid profile variables, besides reducing fatty liver prevalence rate.

Effect of concurrent training on risk factors and hepatic steatosis in obese adolescents / Efecto del entrenamiento concurrente sobre factores de riesgo y esteatosis hepatica en adolescentes obesos / Efeito do treinamento concorrente sobre fatores de risco e esteatose hepatica em adolescentes obesos

OBJECTIVE To analyze the effects of a 20-week concurrent training on the variables of body composition, lipid profile, and fatty liver diagnosis in obese adolescents. METHODS An open clinical trial was carried out with 34 obese adolescents aged between 12 and 15 years. Total body fat, trunk fat mass, total cholesterol and its fractions (HDL, LDL and VLDL), and triglycerides were analyzed; an upper abdominal ultrasound was performed in order to diagnose fatty liver. The participants underwent concurrent training (association of weight training with aerobic training) three times per week, lasting one hour for 20 weeks. Statistical analysis included paired Studentâ€(tm)s t-test and frequency analysis in order to verify the relative and absolute reductions of fatty liver diagnosis, being significant p<0.05. RESULTS The studied adolescents showed statistically significant improvement in body composition, with a decrease of total body fat percentage, total fat mass, trunk fat, and an a increase in the lean body mass. They also presented reduced size of liver lobes, decrease in total cholesterol and in LDL-cholesterol, with a lower prevalence of fatty liver. CONCLUSIONS The concurrent training was effective for promoting significant improvements in body fat composition and lipid profile variables, besides reducing fatty liver prevalence rate. .

OBJETIVO Analizar los efectos de 20 semanas de entrenamiento concurrente sobre las variables de composición corporal, perfil lipídico y diagnóstico de la esteatosis hepática en adolescentes obesos. MÉTODOS Se realizó un ensayo clínico abierto con 34 adolescentes obesos con edades entre los 12 y los 15 años (13,7±1,17). Se analizaron grasa corporal total y de tronco, colesterol total y sus fracciones (HDL, LDL y VLDL) y triglicéridos, siendo realizado examen de ultrasonografía abdominal superior para diagnosticar esteatosis hepática. Los participantes fueron sometidos al entrenamiento concurrente (asociación de entrenamiento con pesos y ejercicio aeróbico) tres veces por semana, con duración de una hora clase durante 20 semanas. Para el tratamiento estadístico, se realizaron análisis descriptivo, prueba t de Student pareada y análisis de frecuencia, a fin de verificar las reducciones relativa y absoluta del diagnóstico de la esteatosis hepática, adoptando p<0,05. RESULTADOS Los adolescentes estudiados presentaron mejoras significativas de la composición corporal, con reducción del porcentaje de grasa total, de la masa gorda total, de la grasa de tronco y del aumento de masa magra, además de reducción del tamaño de los lóbulos del hígado, de los índices de prevalencia de la esteatosis hepática, del colesterol total y del LDL-colesterol. CONCLUSIONES El entrenamiento concurrente fue efectivo por promover mejorías significativas de variables de la composición corporal y del perfil lipídico, además de reducir la prevalencia de la esteatosis hepática. .

OBJETIVO Analisar os efeitos de 20 semanas de treinamento concorrente sobre as variáveis de composição corporal, perfil lipídico e diagnóstico da esteatose hepática em adolescentes obesos. MÉTODOS Realizou-se um ensaio clínico aberto com 34 adolescentes obesos com idades entre 12 e 15 anos. Foram analisados gordura corporal total e de tronco, colesterol total e suas frações (HDL, LDL e VLDL) e triglicérides, sendo realizado exame de ultrassonografia de abdome superior para diagnosticar esteatose hepática. Os participantes foram submetidos ao treinamento concorrente (associação de treino com pesos e exercício aeróbio) três vezes por semana, com duração de uma hora-aula durante 20 semanas. Para o tratamento estatístico, foram realizados o teste t de Student pareado e a análise de frequência, a fim de verificar as reduções relativa e absoluta do diagnóstico da esteatose hepática, adotando-se p<0,05. RESULTADOS Os adolescentes estudados apresentaram melhoras significativas da composição corporal, com diminuição do percentual de gordura total, da massa gorda total, da gordura de tronco e do aumento da massa magra, além de redução do tamanho dos lóbulos do fígado, dos índices de prevalência da esteatose hepática, do colesterol total e LDL-colesterol. CONCLUSÕES O treinamento concorrente foi efetivo por promover melhorias significativas de variáveis da composição corporal e do perfil lipídico, além de reduzir a prevalência da esteatose hepática. .

Atividade física habitual de crianças e adolescentes mensurada por pedômetro e sua relação com índices nutricionais / Usual physical activity in children and adolescents measured by pedometer and its association with nutritional indicators

A monitoração dos níveis de prática de atividade física em segmentos da população jovem tem se tornado importante tema de interesse entre especialistas da área. O Objetivo do estudo foi verificar o nível de atividade física de escolares, baseando-se em duas recomendações vigentes, e analisar a existência de associações entre a quantidadede passos/dia e diferentes indicadores de adiposidade corporal. A casuística foi composta por 162 indivíduos de dez a 18 anos (65 do sexo masculino e 97 do sexo feminino). Foram calculados o Índice de Massa Corporal e o percentual de gordura por impedância bioelétrica. O nível de atividade física habitual foi mensurado por meio de ?pedômetro? (NewLifestyles modelo NL-2000) e analisado de acordo com duas recomendações internacionais: Duncan et al. (masculino: 16.000 passos/dia e feminino: 13.000 passos/dia) e Tudor-Locke et al. (masculino: 15.000 passos/dia e feminino: 12.000 passos/dia). O teste t de Student e a ANOVA One-Away (Post Hoc ? LSD) compararam os grupos formados. O nível de significância adotado foi de 5% (p£0,05). Dos resultados, apenas 18,5% da amostra cumpriu as recomendações propostas por Duncan e 25,9% cumpriram os pontos de corte propostospor Tudor-Locke et al.. Os adolescentes que não cumpriram as recomendações propostas por Duncan et al., apresentaram valores percentuais de gordura corporal maiores quando comparados aos jovens que cumpriram (p<0,05). Pode-se concluir que uma elevada taxa dejovens não cumpriu as duas recomendações analisadas, bem como, apenas um indicador de adiposidade associou-se com o cumprimento de umas das recomendações.

Monitoring physical activity levels in segments of the young population has become an important topic among specialists. The objective of this study was to analyze the physical activity level of schoolchildren based on two current recommendations and to examine the association between the number of steps/day and different indicators of adiposity. The sample consisted of 162 subjects aged 10 to 18 years (65 boys and 97 girls). Body mass index and body fat percentage were calculated. The level of physical activity was quantified with a pedometer (New LifestylesNL-2000) based on the following recommendations: Duncan et al. (male: 16,000 steps/day and female: 13,000 steps/day) and Tudor-Locke et al. (male: 15,000 steps/day and female: 12,000 steps/day). The Student t-test and one-way ANOVA (LSD post hoc test) were used forcomparison between groups. A level of significance of 5% was adopted (p £ 0.05). Only 18.5% of the sample met the recommendations proposed by Duncan et al. and 25.9% met the cutoff proposed by Tudor-Locke et al. Adolescents who did not meet the cutoff proposed by Duncan had higher body fat percentages than those who did (p < 0.05). In conclusion, a high rate of the youngsters did not meet the recommendations analyzed and only one indicator of adiposity was associated with meeting one of the recommendations

[Accuracy of different body mass index cutoffs to predict excessive body fat and abdominal obesity in adolescents]. / Desempenho de diferentes valores críticos de índice de massa corporal na identificação de excesso de gordura corporal e obesidade abdominal em adolescentes.

OBJECTIVE: To analyze the agreement and accuracy of three body mass index cutoffs in the identification of excessive body fat and abdominal obesity in adolescents. METHODS: Cross-sectional analysis was carried out for which 807 adolescents of both sexes (11 to 17 years old) were recruited and their body mass, stature, waist circumference and body fat percentage measured. The ROC evaluated the accuracy of the body mass index cutoffs. RESULTS: The cutoffs analyzed showed a moderate level of agreement in the indication of abdominal obesity (0.54 to 0.66), and high rates of sensitivity (77.4% to 92.8%) and specificity (75.6% to 91.6%) for indication of the nutritional status. Cutoff of Brazilians was more sensitive in the indication of associated excessive body fat and abdominal obesity (97.8%). CONCLUSION: All cutoffs analyzed showed similar accuracy in the indication of nutritional status and abdominal obesity, however, the cutoff of Brazilians was more sensitive in the identification of obese individuals with high cardiovascular risk.

Estado nutricional de adolescentes segundo o índice de massa corporal / Adolescents nutritional status according to the body mass index

A prevalência da obesidade tem crescido de forma alarmante nas últimas décadas, crescimento este que precisa ser acompanhado de perto. O objetivo do estudo foi analisar a eficiência de valores críticos de índice de massa corporal específicos para a população brasileira na indicação do estado nutricional. Foram avaliados 1384 indivíduos, com idade entre 10 e 17 anos. Aferiu-se o peso corporal, a estatura (índice de massa corporal) e a dobra cutânea tricipital. Para o sexo masculino, foram observados valores de sensibilidade iguais a 43.8% (sobrepeso/obesidade) e 5.6% (desnutrição). Para o sexo feminino, os valores de sensibilidade foram iguais a 31.4% (sobrepeso/obesidade) e5.7% (desnutrição). Os valores de especificidade foram iguais a 72.5% (sobrepeso/obesidade) e 99.1% (desnutrição) para o sexo masculino, e iguais a 84.2% (sobrepeso/obesidade) e 96.1% (desnutrição) para o feminino. Os valores críticos de Índice de Massa Corporal analisados são mais específicos do que sensíveis na indicação do estado nutricional.

In the last decades, the obesity prevalence has increased in worldwide, and is necessary to be followed. The aim of the presented study was to analyze the efficiency of Brazilian body mass index cutoffs in the nutritional status indication. A sample of 1384 subjects was evaluated, with age ranging from 10 to 17 years old. Were assessed the body weight, stature (body mass index), and the triceps skinfold. For the male gender, the sensibility’s scores were 43.8%(overweight/obesity) and 5.6% (malnutrition). For the female gender, the sensibility’s scores were 31.4%(overweight/obesity) and 5.7% (malnutrition). The specificity’s scores were 72.5% (overweight/obesity) and 99.1% (malnutrition) for the male gender, and equal to 84.2% (overweight/obesity) and 96.1% (malnutrition) for the female gender. The analyzed body mass index cutoffs are more specific than sensitive in the nutritional status identification.

Desempenho de diferentes valores críticos de índice de massa corporal na identificação de excesso de gordura corporal e obesidade abdominal em adolescentes / Accuracy of different body mass index cutoffs to predict excessive body fat and abdominal obesity in adolescents

OBJETIVO: Analisar a concordância e eficiência de três valores críticos para índice de massa corporal (IMC) na indicação da obesidade abdominal e do excesso de gordura corporal em adolescentes. MÉTODOS: Análise transversal, em que participaram do estudo 807 jovens, de ambos os sexos (entre 11 e 17 anos), e foram aferidos valores de massa corporal, estatura, circunferência de cintura e gordura corporal relativa. A curva ROC analisou a eficiência dos pontos de corte para índice de massa corporal. RESULTADOS: Os três valores críticos analisados apresentaram moderada concordância na indicação da obesidade abdominal (0,54 a 0,66) e elevados valores de sensibilidade (77,4 por cento a 92,8 por cento) e especificidade (75,6 por cento a 91,6 por cento) para a indicação do estado nutricional. A proposta nacional foi mais sensível na indicação de concomitante excesso de gordura corporal e obesidade abdominal (97,8 por cento). CONCLUSÃO: Todos os valores críticos analisados apresentaram desempenho similar na indicação do estado nutricional e da obesidade abdominal, no entanto a proposta nacional foi mais sensível na indicação de indivíduos obesos com elevado risco cardiovascular.

OBJECTIVE: To analyze the agreement and accuracy of three body mass index cutoffs in the identification of excessive body fat and abdominal obesity in adolescents. METHODS: Cross-sectional analysis was carried out for which 807 adolescents of both sexes (11 to 17 years old) were recruited and their body mass, stature, waist circumference and body fat percentage measured. The ROC evaluated the accuracy of the body mass index cutoffs. RESULTS: IThe cutoffs analyzed showed a moderate level of agreement in the indication of abdominal obesity (0.54 to 0.66), and high rates of sensitivity (77.4 percent to 92.8 percent) and specificity (75.6 percent to 91.6 percent) for indication of the nutritional status. Cutoff of Brazilians was more sensitive in the indication of associated excessive body fat and abdominal obesity (97.8 percent). CONCLUSION: All cutoffs analyzed showed similar accuracy in the indication of nutritional status and abdominal obesity, however, the cutoff of Brazilians was more sensitive in the identification of obese individuals with high cardiovascular risk.