scholarly journals A moderately high protein diet and 4’ isometric exercises efficacy in breast cancer patients treated with antiestrogenic medication

2017 ◽  
Vol 12 (2) ◽  
pp. 83-90
Author(s):  
Diana Violeta ARTENE ◽  
◽  
Cristian Ioan BORDEA ◽  
Alexandru BLIDARU ◽  
◽  
...  

Many breast cancer patients gain weight during treatment increasing recurrence, oncology specific mortality and general mortality risks. Breast cancer diagnosis and treatment overthrow patients’ lifestyle aggravating sedentariness and any preexisting weight gain causes like insulin and leptin resistance, dysbiosys and dyslipidemia. The aim of this study is to evaluate the efficiency of a moderately high protein diet – based on foods naturally high in proteins, omega-3 fatty acids, calcium, probiotics and prebiotics – and of an isometric exercise protocol to generate fat loss without muscle loss in ER+ breast cancer patients taking antiestrogenic treatment. We randomized 50 ER+ breast cancer patients – taking either Tamoxifen or Aromatase Inhibitors (AI) after surgery and chemotherapy – to follow a high protein diet, or a high protein diet and 4’ isometric exercises for 12 weeks. Patients were instructed to eat only when hungry and to keep a food journal. We measured weight and body composition with a bioelectrical impedance scale after checking for hydration status. The diet group lost 2.17 ± 2.42% subcutaneus fat (p = 0,000) with no muscle loss, and there was no statistical difference between patients taking Tamoxifen or AI regarding body composition evolution. The diet + isometric exercise group lost 2.2 more pounds than the diet group and 0.66 ± 0.91% visceral fat (p = 0,001) also with no muscle loss. AI patients from the diet and exercise grup did not improve muscle mass – maybe because of the musculoskeletal impact of AI medication. In conclusion, a moderately high protein diet can decrease body fat in ER+ breast cancer patients on antiestrogenic medication. Adding a daily minimal exercise protocol to a high protein diet decreases visceral fat – which is more hormonally active. And resistance-training exercises are more appropriate than isometric exercises for patients on AI.

Trials ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Shaoyong Xu ◽  
Juan Zhang ◽  
Yuxiang Dong ◽  
Ruikun Chen ◽  
Wenlei Xu ◽  
...  

Abstract Background It is very important for clinicians and dieticians to explore reasonable weight management strategies for obese people that address both short-term weight loss and subsequent weight maintenance. We hypothesized that resistance training combined with a high-protein diet would result in similar short-term weight loss but better long-term weight maintenance than either a conventional low-fat diet control or a high-protein diet alone. Methods/design This is an 8-week randomized parallel controlled trial followed by a 24-week observational follow-up study. A 48-week supplementary follow-up study will be carried out if necessary. The study will be conducted between June 2019 and October 2020. The 90 overweight or obese participants will be randomly assigned to the conventional low-fat diet group, the high-protein diet group and the high-protein diet and resistance training combination group. Primary outcomes are body weight change at week 8 and week 24 compared with the baseline level. Discussion High-quality research on the effect of a high-protein diet combined resistance training on weight loss and weight maintenance is limited in the Chinese population. Our study will provide a basis for obesity management in China and will promote the development of exercise- and diet-related studies. Trial registration Chinese Clinical Trial Registry, ChiCTR1900023841. Registered on 14 June 2019.


2017 ◽  
Vol 25 (7) ◽  
pp. 2221-2227 ◽  
Author(s):  
Yoshiko Kubo ◽  
Tateaki Naito ◽  
Keita Mori ◽  
Gakuji Osawa ◽  
Etsuko Aruga

2019 ◽  
Author(s):  
Xu Shaoyong ◽  
Juan Zhang ◽  
Yuxiang Dong ◽  
Ruikun Chen ◽  
Wenlei Xu ◽  
...  

Abstract Background It is very important for clinicians and dieticians to explore reasonable weight management strategies for obese people that address both short-term weight loss and subsequent weight maintenance. We hypothesized that resistance training combined with a high-protein diet would result in similar short-term weight loss but better long-term weight maintenance than either conventional low-fat diet control or high-protein diet alone.Methods/design This is an 8-week randomized parallel controlled trial followed by a 24-week observational follow-up study. A 48-week supplementary follow-up study will be carried out if necessary. The study will be conducted between June 2019 and October 2020. The 90 overweight or obese participants will be randomly assigned to the conventional low-fat diet group, the high-protein diet group and the high-protein diet and resistance training combination group. Primary outcomes are body weight changes at week 8 and week 24 compared with the baseline level.Discussion High-quality research on the effect of a high-protein diet combined resistance training on weight loss and weight maintenance is limited in Chinese population. Our study will provide a basis for obesity management in China, and promote the development of exercise and diet-related studies.Trials registration ChiCTR1900023841, 14 June 2019


2000 ◽  
Vol 134 (1) ◽  
pp. 89-99 ◽  
Author(s):  
N. L. BUTTER ◽  
J. M. DAWSON ◽  
D. WAKELIN ◽  
P. J. BUTTERY

The aim of this study was to determine whether the inclusion of a condensed tannin (quebracho tannin, QT) and/or the elevation of dietary protein could reduce Trichostrongylus colubriformis establishment and existence in the small intestine of lambs. Thirty-six lambs (mean liveweight 32·6±3·9 kg) were randomly allocated to one of six experimental groups, groups 1–5 were parasitized with a trickle infection of 3000 infective Trichostrongylus colubriformis larvae daily, whilst group 6 remained as uninfected controls. Experimental diets were formulated to contain 222 g CP/kg (high protein) or 97 g CP/kg (low protein) with or without the inclusion of 50 g QT/kg. All six animal groups were fed the low protein diet, group 2 fed low protein diet+QT, for one month prior to infection (groups 1–5). Once nematode eggs were observed in the faeces, diets were abruptly changed in three experimental groups. Group 1 remained on the low protein diet, group 2 remained on the low protein+QT diet, group 3 changed to the high protein diet, group 4 changed to the high protein+QT diet, group 5 changed to the low protein+QT diet and group 6 remained uninfected and fed the low protein diet. Production, haematological and parasitological parameters were monitored at regular intervals. Results show that parasitized animals fed the high protein diet achieved growth rates similar to those of uninfected low protein-fed lambs. Inclusion of dietary QT did not depress liveweight gain. Total daily faecal egg counts declined after feeding the high protein diet. Inclusion of QT into the low protein diet also reduced faecal egg counts to similar levels observed in the high protein-fed lambs. The inclusion of QT into the high protein diet did not further reduce faecal egg counts. No significant differences in the haematological parameters measured were observed between infected animals (groups 1–5), suggesting that the beneficial effect of dietary QT in the low protein diet is unlikely to be mediated through an immune response. These data suggest that the inclusion of QT in low protein diets may be an alternative to feeding high protein diets to reduce nematode burden in lambs.


2021 ◽  
Vol 58 ◽  
pp. 27-34
Author(s):  
Marco Invernizzi ◽  
Konstantinos Venetis ◽  
Elham Sajjadi ◽  
Roberto Piciotti ◽  
Alessandro de Sire ◽  
...  

2019 ◽  
Author(s):  
Xu Shaoyong ◽  
Juan Zhang ◽  
Yuxiang Dong ◽  
Ruikun Chen ◽  
Wenlei Xu ◽  
...  

Abstract Background It is very important for clinicians and dieticians to explore reasonable weight management strategies for obese people that address both short-term weight loss and subsequent weight maintenance. We hypothesized that resistance training combined with a high-protein diet would result in similar short-term weight loss but better long-term weight maintenance than either conventional low-fat diet control or high-protein diet alone.Methods/design This is an 8-week randomized parallel controlled trial followed by a 24-week observational follow-up study. A 48-week supplementary follow-up study will be carried out if necessary. The study will be conducted between June 2019 and October 2020. The 90 overweight or obese participants will be randomly assigned to the conventional low-fat diet group, the high-protein diet group and the high-protein diet and resistance training combination group. Primary outcomes are body weight changes at week 8 and week 24 compared with the baseline level.Discussion High-quality research on the effect of a high-protein diet combined resistance training on weight loss and weight maintenance is limited in Chinese population. Our study will provide a basis for obesity management in China, and promote the development of exercise and diet-related studies.Trials registration ChiCTR1900023841, 14 June 2019


Cancers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1806
Author(s):  
Byung Min Lee ◽  
Yeona Cho ◽  
Jun Won Kim ◽  
Sung Gwe Ahn ◽  
Jee Hung Kim ◽  
...  

There are no means to predict patient response to neoadjuvant chemotherapy (NAC); the impact of skeletal muscle loss on the response to NAC remains undefined. We investigated the association between response to chemotherapy and skeletal muscle loss in breast cancer patients. Patients diagnosed with invasive breast cancer who were treated with NAC, surgery, and radiotherapy were analyzed. We quantified skeletal muscle loss using pre-NAC and post-NAC computed tomography scans. The response to treatment was determined using the Response Evaluation Criteria in Solid Tumors. We included 246 patients in this study (median follow-up, 28.85 months). The median age was 48 years old (interquartile range 42–54) and 115 patients were less than 48 years old (46.7%). Patients showing a complete or partial response were categorized into the responder group (208 patients); the rest were categorized into the non-responder group (38 patients). The skeletal muscle mass cut-off value was determined using a receiver operating characteristic curve; it showed areas under the curve of 0.732 and 0.885 for the pre-NAC and post-NAC skeletal muscle index (p < 0.001 for both), respectively. Skeletal muscle loss and cancer stage were significantly associated with poor response to NAC in locally advanced breast cancer patients. Accurately measuring muscle loss to guide treatment and delaying muscle loss through various interventions would help enhance the response to NAC and improve clinical outcomes.


2017 ◽  
Vol 64 (2) ◽  
pp. 133-137
Author(s):  
Diana Viorela Artene ◽  
◽  
Cristian Ioan Bordea ◽  
Alexandru Blidaru ◽  
◽  
...  

Introduction. Statistically, patients who achieve and maintain their optimal weight during breast cancer treatment have the best prognostic. Breast cancer associated weight gain starts during neoadjuvant chemotherapy when many patients either eat too little because of the decreased appetite or eat too much to emotionally cope with the treatment. Materials and method. To test if we can prevent weight gain during neoadjuvant chemotherapy we assigned 46 patients during neoadjuvant chemotherapy (CH) and of 50 patients 2 years after surgery (S) to follow a moderately high protein diet – based on eating only when hungry foods naturally high in protein, high quality fatty acids and carbohydrates, calcium, pre- and probiotics. We used no dietary supplements. We measured weight (W), subcutaneous fat (%SF) and visceral fat percentages (% VF) with a multi-frequency BIA scale at the beginning of the study and after 12 weeks of intervention (time needed to administrate 4 chemotherapy sessions). To validate BIA measurements, we also measured waist and hips circumferences. Results. Although S patients obtained better results on all measured parameters, CH patients also improved their body composition despite chemotherapy administration during the trial: 1.611±2.89%kg (p=0.005), 1.79±3.32% subcutaneous fat (p=0.006), 0.4±0,81% visceral fat (p=0.012) and had a 0.29±0.4 in the waist to hips ratio (p=0.001). Conclusion. A moderately lower carb diet is as effective for preventing sarcopenic obesity during chemotherapy as it is 2 years after surgery thus sarcopenic obesity prevention can begin from as early as diagnosis.


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