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Cristina de Sousa Pedrosa B, Machado Manhães de Castro P, Santos LVSE, Lima de Andrade D, Florencio Vilaça A, Pinheiro Júnior JEG, Paula de Lima Ferreira A, Lins EM, Maia JN, do Amparo Andrade M, de Castro CMMB. Effects of complex decongestive therapy and aquatic physiotherapy on markers of the inflammatory process in individuals with lymphedema. Physiother Theory Pract 2024; 40:900-908. [PMID: 36394217 DOI: 10.1080/09593985.2022.2143252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Chronic lymphedema is a progressive and inflammatory disease caused by impaired lymphatic transport. PURPOSE This study evaluates the effects of complex decongestive therapy (CDT) and aquatic physiotherapy on markers of the inflammatory process and lower limb volumes in individuals with lymphedema. METHODS A randomized controlled clinical trial was carried out with three groups: patients with lymphedema submitted to CDT, patients with lymphedema submitted to aquatic physiotherapy, and control group of individuals without lymphedema. The evaluation was performed through blood count, CRP measurements, C3, C4 complement, measurement of serum levels of cytokines interferon-gamma (IFN-γ), tumor necrosis factor-alpha (TNF-α), interleukins 4 (IL-4), 6 (IL-6), and 10 (IL-10), and the volume of a lower limb using the volume formula of a truncated cone. The study was registered with the Brazilian Clinical Trials Registry (RBR-4tpkszn). RESULTS Our work showed a reduction in the TNF-α levels of patients in the CDT group (p = .028). Significant differences were found between the control group and the CDT group for IL-10 (p = .049) and Monocytes (p = .039). No significant reduction in limb volume was found. CONCLUSION Our results show that CDT was able to significantly reduce the inflammatory marker TNF-α in patients with lymphedema, suggesting an anti-inflammatory effect of the therapy.
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Affiliation(s)
| | | | | | | | - Adriano Florencio Vilaça
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco (UFPE), Recife, Brazil
| | | | | | - Esdras Marques Lins
- Department of Surgery, Universidade Federal de Pernambuco (UFPE), Recife, Brazil
| | - Juliana Netto Maia
- Department of Physiotherapy, Universidade Federal de Pernambuco (UFPE), Recife, Brazil
| | | | - Célia Maria Machado Barbosa de Castro
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco (UFPE), Recife, Brazil
- Department of Tropical Medicine, Universidade Federal de Pernambuco (UFPE), Recife, Brazil
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2
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Peters M, Butson G, Mizrahi D, Denehy L, Lynch BM, Swain CTV. Physical activity and pain in people with cancer: a systematic review and meta-analysis. Support Care Cancer 2024; 32:145. [PMID: 38321248 PMCID: PMC10847204 DOI: 10.1007/s00520-024-08343-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 01/24/2024] [Indexed: 02/08/2024]
Abstract
PURPOSE Physical activity can provide analgesic benefit but its effect on cancer-related pain is unclear. This review synthesised and appraised the evidence for the effect of physical activity on pain in people living with or beyond cancer. METHODS A systematic search of Ovid Medline and Embase was performed to identify randomised controlled trials (RCTs), randomised cross-over studies (RXTs), and prospective observational studies that examined physical activity and pain outcomes in adults living with or beyond cancer. Meta-analyses were performed to generate effect estimates. Risk of bias was assessed, and the GRADE system was used to assess evidence quality. RESULTS One hundred twenty-one studies (n = 13,806), including 102 RCTs, 6 RXTs, and 13 observational studies, met the criteria for inclusion. Meta-analyses of RCTs identified a decrease in pain intensity (n = 3734; standardised mean difference (SMD) - 0.30; 95% confidence interval (CI) - 0.45, - 0.15) and bodily pain (n = 1170; SMD 0.28; 95% CI 0.01, 0.56) but not pain interference (n = 207; SMD - 0.13, 95% CI - 0.42, 0.15) following physical activity interventions. Individual studies also identified a reduction in pain sensitivity but not analgesic use, although meta-analysis was not possible for these outcomes. High heterogeneity between studies, low certainty in some effect estimates, and possible publication bias meant that evidence quality was graded as very low to low. CONCLUSION Physical activity may decrease pain in people living with and beyond cancer; however, high heterogeneity limits the ability to generalise this finding to all people with cancer or to specific types of cancer-related pain.
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Affiliation(s)
- Mitchell Peters
- Cancer Science Unit, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia
- Princess Alexandra Hospital, Woolloongabba, QLD, Australia
| | - Grace Butson
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - David Mizrahi
- The Daffodil Centre, The University of Sydney, a Joint Venture With Cancer Council NSW, Sydney, NSW, Australia
| | - Linda Denehy
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Department of Physiotherapy, Faculty of Medicine, Dentistry and Health Sciences, Melbourne School of Health Sciences, University of Melbourne, Level 7, Alan Gilbert Building, 161 Barry St, Melbourne, VIC, 3010, Australia
| | - Brigid M Lynch
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
- Physical Activity Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Christopher T V Swain
- Department of Physiotherapy, Faculty of Medicine, Dentistry and Health Sciences, Melbourne School of Health Sciences, University of Melbourne, Level 7, Alan Gilbert Building, 161 Barry St, Melbourne, VIC, 3010, Australia.
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Australia.
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3
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What are the physiologic effects of Resistance Exercise behind breast cancer-related lymphedema prevention? Med Hypotheses 2023. [DOI: 10.1016/j.mehy.2023.111022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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4
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Guloglu S, Basim P, Algun ZC. Efficacy of proprioceptive neuromuscular facilitation in improving shoulder biomechanical parameters, functionality, and pain after axillary lymph node dissection for breast cancer: A randomized controlled study. Complement Ther Clin Pract 2023; 50:101692. [PMID: 36528984 DOI: 10.1016/j.ctcp.2022.101692] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/02/2022] [Accepted: 11/06/2022] [Indexed: 11/13/2022]
Abstract
PURPOSE Axillary lymph node dissection and radiotherapy have been associated with pain, physical symptoms, and decreased functional abilities in the upper extremity. This study aimed to evaluate the potential effects of the proprioceptive neuromuscular facilitation (PNF) technique on muscle strength, pain and functionality in this patient group in comparison with progressive resistance training (PRT). METHODS The study was conducted with a randomized clinical trial design. Sixty-six women were included in the study and randomly divided into three groups: the PNF group (n = 22), the PRT group (n = 22), and the control group (n = 22). The participants were evaluated at the baseline and after eight weeks of treatment. Outcome measures were determined as pain (the Visual Analog Scale), upper extremity strength (isokinetic dynamometer), functionality (the Disabilities of the Arm, Shoulder and Hand questionnaire), and perception of change (the Global Rating of Change Scale). TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT05288036. RESULTS The results showed statistically significant changes in both treatment groups in terms of shoulder flexors/extensors, abductor/adductors, internal/external rotators strength/power/endurance measurement, pain, and functionality (p < 0.05). Concerning functionality and perception of change, the PNF group had a statistically significantly higher improvement compared to the remaining two groups (p < 0.05). CONCLUSION PNF is an effective technique in increasing upper extremity muscle strength, reducing pain during rest and activity, and improving functionality in patients receiving breast cancer treatment.
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Affiliation(s)
- Selen Guloglu
- Istanbul Medipol University, Institute of Health Sciences, Department of Physical Therapy and Rehabilitation, Istanbul, Turkey.
| | - Pelin Basim
- Istanbul Medipol University, Faculty of Medicine, Department of General Surgery, Istanbul, Turkey.
| | - Z Candan Algun
- Istanbul Medipol University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Istanbul, Turkey.
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5
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Cobb A, DeSnyder SM. Risk Factors for Breast Cancer-Related Lymphedema, Risk Reduction, and Myths about Precautionary Behaviors. CURRENT BREAST CANCER REPORTS 2023. [DOI: 10.1007/s12609-023-00474-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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6
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Hayes SC, Singh B, Reul-Hirche H, Bloomquist K, Johansson K, Jönsson C, Plinsinga ML. The Effect of Exercise for the Prevention and Treatment of Cancer-Related Lymphedema: A Systematic Review with Meta-analysis. Med Sci Sports Exerc 2022; 54:1389-1399. [PMID: 35320145 DOI: 10.1249/mss.0000000000002918] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
INTRODUCTION The purpose of this systematic review and meta-analysis was to evaluate the effects of exercise on (i) the prevention of cancer-related lymphedema (CRL) and (ii) the treatment of CRL, lymphedema-associated symptoms, and other health outcomes among individuals with CRL. METHODS An electronic search was undertaken for exercise studies measuring lymphedema and involving individuals at risk of developing or with CRL. The Effective Public Health Practice Project Quality scale was used to assess study quality, and overall quality of evidence was assessed using the Grading of Recommendation, Assessment, Development and Evaluation approach. Meta-analyses were performed to evaluate effects of exercise on CRL incidence, existing CRL status, lymphedema-associated symptoms, and health outcomes. RESULTS Twelve studies ( n = 1955; 75% moderate-high quality) and 36 studies ( n = 1741; 58% moderate-high quality) were included in the prevention and treatment aim, respectively. Relative risk of developing CRL for those in the exercise group compared with the nonexercise group was 0.90 (95% confidence interval (CI), 0.72 to 1.13) overall and 0.49 (95% CI, 0.28 to 0.85) for those with five or more lymph nodes removed. For those with CRL in the exercise group, the standardized mean difference (SMD) before to after exercise of CRL was -0.11 (95% CI, -0.22 to 0.01), and compared with usual care postintervention, the SMD was -0.10 (95% CI, -0.24 to 0.04). Improvements after intervention were observed for pain, upper-body function and strength, lower-body strength, fatigue, and quality of life for those in the exercise group (SMD, 0.3-0.8; P < 0.05). CONCLUSIONS Findings support the application of exercise guidelines for the wider cancer population to those with or at risk of CRL. This includes promotion of aerobic and resistance exercise, and not just resistance exercise alone, as well as unsupervised exercise guided by symptom response.
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Affiliation(s)
| | - Ben Singh
- UniSA Allied Health and Human Performance, Alliance for Research in Exercise, Nutrition and Activity, University of South Australia, Adelaide, South Australia, AUSTRALIA
| | | | - Kira Bloomquist
- University Hospitals Centre for Health Research (UCSF), Copenhagen University Hospital, Copenhagen, DENMARK
| | - Karin Johansson
- Department of Health Sciences, Lund University, Lund, SWEDEN
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7
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Wang L, Shi YX, Wang TT, Chen KX, Shang SM. Breast cancer-related lymphoedema and resistance exercise: An evidence-based review of guidelines, consensus statements and systematic reviews. J Clin Nurs 2022; 32:2208-2227. [PMID: 35894167 DOI: 10.1111/jocn.16437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 06/11/2022] [Accepted: 06/20/2022] [Indexed: 11/27/2022]
Abstract
AIMS AND OBJECTIVES Breast cancer-related lymphoedema (BCRL) is a side effect of cancer treatment and can be alleviated by resistance exercise. This systematic, evidence-based review examined the existing best evidence on resistance exercise for BCRL to accurately describe the current status of the field and offer recommendations for clinicians. METHODS This review adheres to the PRISMA guidelines. Clinical practice guidelines, consensus documents, systematic reviews and other related evidence-based resources about resistance exercise for BCRL were retrieved through the English databases and guideline websites. The publication data limit was set to December 2020. The following search terms were used: 'breast cancer/breast neoplasm/breast carcinoma/breast tumor/breast malignancy, lymphedema/swelling/edema/lymphoedema, resistance/weight/strength training, best practice/clinical practice/guideline/consensus documents'. The quality of the included studies was evaluated by two authors independently using AGREE II and AMSTAR II tools. Evidence-based recommendations on resistance exercise relevant for BCRL were synthesised and categorised. RESULTS Twenty two articles (seven guidelines, four consensus documents and eleven systematic reviews) were included. The overall quality of the eleven eligible guidelines and consensus documents was moderate to high according to the AGREE II criteria. The quality of the eleven systematic reviews was critically low to high according to the AMSTAR criteria. Six clinical topics involving 43 recommendations were identified. Recommendations were categorised by safety of resistance training, effectiveness of resistance training, evaluation prior to resistance exercise, resistance exercise prescription, resistance training outcome index and points for attention. CONCLUSIONS This study summarises 43 recommendations for resistance training for BCRL and provides guidance for clinicians. Based on randomised trials and systematic reviews published in recent years, there is an urgent need to update the guidelines and consensus documents in terms of topics, for example effectiveness of resistance training and resistance training outcome index.
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Affiliation(s)
- Ling Wang
- School of Nursing, Peking University, Beijing, China.,School of Nursing, Wannan Medical College, Wuhu, China
| | - Yue Xian Shi
- School of Nursing, Peking University, Beijing, China
| | - Ting Ting Wang
- Department of Lymphatic Surgery, Beijing Shijitan Hospital, Beijing, China
| | - Ke Xin Chen
- School of Nursing, Peking University, Beijing, China
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Hooshmand Moghadam B, Golestani F, Bagheri R, Cheraghloo N, Eskandari M, Wong A, Nordvall M, Suzuki K, Pournemati P. The Effects of High-Intensity Interval Training vs. Moderate-Intensity Continuous Training on Inflammatory Markers, Body Composition, and Physical Fitness in Overweight/Obese Survivors of Breast Cancer: A Randomized Controlled Clinical Trial. Cancers (Basel) 2021; 13:4386. [PMID: 34503198 PMCID: PMC8430701 DOI: 10.3390/cancers13174386] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/10/2021] [Accepted: 08/25/2021] [Indexed: 12/16/2022] Open
Abstract
Background: Chronic inflammation associated with breast cancer (BC) poses a major challenge in care management and may be ameliorated by physical activity. This randomized controlled trial assessed the effects of a 12-week high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on inflammatory markers, body composition, and physical fitness in BC survivors (BCS). Methods: Forty BCS (age = 57 ± 1 years; body mass [BM] = 74.8 ± 1.5 kg; VO2peak = 20.8 ± 2.1 mL·kg-1·min-1) were randomly assigned to three groups: HIIT (n = 15), MICT (n = 15), or control (CON; n = 15). The intervention groups (HIIT and MICT) performed their respective exercise protocols on a cycle ergometer 3 days/week for 12 weeks while the CON group maintained their current lifestyle. Baseline and post-intervention assessments included body composition (BM, fat mass (FM), lean mass (LM)), physical fitness (VO2peak, lower body strength (LBS), upper body strength (UBS)), and serum concentrations of tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), interleukin-8 (IL-8), interleukin-10 (IL-10), leptin, and adiponectin. Results: Both intervention groups significantly (p < 0.05) decreased BM (HIIT = -1.8 kg, MICT = -0.91 kg), FM (HIIT = -0.81 kg, MICT = -0.18 kg), TNF-α (HIIT = -1.84 pg/mL, MICT = -0.99 pg/mL), IL-6 (HIIT = -0.71 pg/mL, MICT = -0.36 pg/mL), leptin (HIIT = -0.35 pg/mL, MICT = -0.16 pg/mL) and increased VO2peak (HIIT = 0.95 mL·kg-1·min-1, MICT = 0.67 mL·kg-1·min-1), LBS (HIIT = 2.84 kg, MICT = 1.53 kg), UBS (HIIT = 0.53 kg, MICT = 0.53 kg), IL-10 (HIIT = 0.63 pg/mL, MICT = 0.38 pg/mL), and adiponectin (HIIT = 0.23 ng/mL, MICT = 0.1 ng/mL) compared to baseline. The changes in BM, FM, TNF-α, leptin, and LBS were significantly greater in HIIT compared to all other groups. Conclusions: Our findings indicate that compared to the often-recommended MICT, HIIT may be a more beneficial exercise therapy for the improvement of inflammation, body composition and LBS in BCS; and consequently, merits long-term study.
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Affiliation(s)
- Babak Hooshmand Moghadam
- Department of Exercise Physiology, University of Tehran, Tehran 1961733114, Iran;
- Department of Exercise Physiology, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
| | - Fateme Golestani
- Department of Exercise Physiology, University of Birjand, Birjand 9717434765, Iran; (F.G.); (M.E.)
| | - Reza Bagheri
- Department of Exercise Physiology, University of Isfahan, Isfahan 8174673441, Iran;
| | - Neda Cheraghloo
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran 1417613151, Iran;
| | - Mozhgan Eskandari
- Department of Exercise Physiology, University of Birjand, Birjand 9717434765, Iran; (F.G.); (M.E.)
| | - Alexei Wong
- Department of Health and Human Performance, Marymount University, Arlington, VA 22207, USA; (A.W.); (M.N.)
| | - Michael Nordvall
- Department of Health and Human Performance, Marymount University, Arlington, VA 22207, USA; (A.W.); (M.N.)
| | - Katsuhiko Suzuki
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa 359-1192, Japan
| | - Parisa Pournemati
- Department of Exercise Physiology, University of Tehran, Tehran 1961733114, Iran;
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9
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Korsholm-Rosfort T, Larsen S, Aagaard T, Ammitzbøll G, Dalton SO. Interrater Reliability of Dynamic Muscle Testing After Breast Cancer Surgery in Women at High Risk of Lymphedema: To Improve Quality in Clinical Practice. Integr Cancer Ther 2021; 19:1534735420903801. [PMID: 32108545 PMCID: PMC7052446 DOI: 10.1177/1534735420903801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background: The purpose of this study is to determine the interrater reliability of dynamic muscle tests in the early rehabilitation phase in women after breast cancer surgery with axillary lymph node dissection (ALND) based on the "preventive intervention against lymphedema after breast cancer" (LYCA) randomised controlled trial. Methods: Fifteen women treated with breast cancer surgery including ALND were recruited from participants in the LYCA trial. In this interrater reliability study, women were tested in 4 dynamic muscle tests by 2 physiotherapists at a Capital Hospital in Denmark. Intraclass correlation coefficients (ICCs) with 95% confidence intervals (CIs) was used to assess the relative reliability between raters. A Bland-Altman plot and limits of agreement were calculated to describe the absolute reliability. Results: All 6 subtests displayed high interrater reliability. ICC values were: leg press 0.96 (95% CI = 0.87-0.99), elbow flexion (contralateral) 0.94 (0.83-0.98), elbow flexion (affected arm) 0.93 (0.80-0.98), elbow extension 0.80 (0.41-0.93), shoulder abduction (contralateral) 0.89 (0.68-0.96), and shoulder abduction (affected arm) 0.91 (0.74-0.97). Cumulated interrater reliability for the test battery was very high (ICC = 0.99, 95% CI = 0.990-1.0). The absolute reliability of this study was considered high, and the absence of large shifts between mean and the line of 0 difference suggest no systematic bias that could influence clinical interpretation. Conclusions: The dynamic muscle tests evaluated in this study had high interrater reliability and can be used reliably in women in the postoperative phase after breast cancer surgery with ALND.
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Affiliation(s)
- Tina Korsholm-Rosfort
- Department of Physiotherapy and Occupational Therapy, Faculty of Health and Technology, University College Copenhagen, Denmark
| | - Simone Larsen
- Department of Physiotherapy and Occupational Therapy, Faculty of Health and Technology, University College Copenhagen, Denmark
| | - Thomas Aagaard
- Department of Physio- and Occupational Therapy, Holbaek Hospital, Denmark.,Department of Orthopedic Surgery, Holbaek Hospital, Denmark.,4Department of Orthopedic Surgery, Zealand University Hospital, Denmark
| | - Gunn Ammitzbøll
- Danish Research Center for Equality in Cancer (COMPAS), Zealand University Hospital, Naestved, Denmark.,Survivorship and Equality in Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Susanne O Dalton
- Danish Research Center for Equality in Cancer (COMPAS), Zealand University Hospital, Naestved, Denmark.,Survivorship and Equality in Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
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10
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Ortega MA, Fraile-Martínez O, García-Montero C, Pekarek L, Guijarro LG, Castellanos AJ, Sanchez-Trujillo L, García-Honduvilla N, Álvarez-Mon M, Buján J, Zapico Á, Lahera G, Álvarez-Mon MA. Physical Activity as an Imperative Support in Breast Cancer Management. Cancers (Basel) 2020; 13:E55. [PMID: 33379177 PMCID: PMC7796347 DOI: 10.3390/cancers13010055] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/21/2020] [Accepted: 12/24/2020] [Indexed: 02/06/2023] Open
Abstract
Breast cancer (BC) is the most common malignancy and the second cause of cancer-related death among women. It is estimated that 9 in 10 cases of BC are due to non-genetic factors, and approximately 25% to 30% of total breast cancer cases should be preventable only by lifestyle interventions. In this context, physical activity represents an excellent and accessible approach not only for the prevention, but also for being a potential support in the management of breast cancer. The present review will collect the current knowledge of physical activity in the background of breast cancer, exploring its systemic and molecular effects, considering important variables in the training of these women and the evidence regarding the benefits of exercise on breast cancer survival and prognosis. We will also summarize the various effects of physical activity as a co-adjuvant therapy in women receiving different treatments to deal with its adverse effects. Finally, we will reveal the impact of physical activity in the enhancement of quality of life of these patients, to conclude the central role that exercise must occupy in breast cancer management, in an adequate context of a healthy lifestyle.
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Affiliation(s)
- Miguel A. Ortega
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, 28806 Alcalá de Henares, Spain
- University Center for the Defense of Madrid (CUD-ACD), 28047 Madrid, Spain
| | - Oscar Fraile-Martínez
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
| | - Cielo García-Montero
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
| | - Leonel Pekarek
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
| | - Luis G. Guijarro
- Unit of Biochemistry and Molecular Biology (CIBEREHD), Department of System Biology, University of Alcalá, 28801 Alcalá de Henares, Spain;
| | - Alejandro J. Castellanos
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
| | - Lara Sanchez-Trujillo
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
| | - Natalio García-Honduvilla
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- University Center for the Defense of Madrid (CUD-ACD), 28047 Madrid, Spain
| | - Melchor Álvarez-Mon
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- University Center for the Defense of Madrid (CUD-ACD), 28047 Madrid, Spain
- Immune System Diseases-Rheumatology, Oncology Service an Internal Medicine, University Hospital Príncipe de Asturias, (CIBEREHD), 28806 Alcalá de Henares, Spain
| | - Julia Buján
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, 28806 Alcalá de Henares, Spain
| | - Álvaro Zapico
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain;
- Obstetrics and Gynecology Service, Center for Biomedical Research in the Mental Health Network, University Hospital Príncipe de Asturias, 28806 Alcalá de Henares, Spain
| | - Guillermo Lahera
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- Psychiatry Service, Center for Biomedical Research in the Mental Health Network, University Hospital Príncipe de Asturias, 28806 Alcalá de Henares, Spain
| | - Miguel A. Álvarez-Mon
- Unit of Histology and Pathology, Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcalá de Henares, Spain; (O.F.-M.); (C.G.-M.); (L.P.); (A.J.C.); (L.S.-T.); (N.G.-H.); (M.Á.-M.); (J.B.); (G.L.); (M.A.Á.-M.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- Department of Psychiatry and Medical Psychology, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain
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Resistance exercise and breast cancer-related lymphedema-a systematic review update and meta-analysis. Support Care Cancer 2020; 28:3593-3603. [PMID: 32415386 PMCID: PMC7316683 DOI: 10.1007/s00520-020-05521-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/06/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND The purpose of this systematic review update and meta-analysis was to analyze resistance exercise (RE) intervention trials in breast cancer survivors (BCS) regarding their effect on breast cancer-related lymphedema (BCRL) status and upper and lower extremity strength. METHODS Systematic literature search was conducted utilizing PubMed, MEDLINE, and Embase databases. Any exercise intervention studies-both randomized controlled and uncontrolled-which assessed the effects of RE on BCRL in BCS in at least one intervention group published between 1966 and 31st January 2020 were included. Included articles were analyzed regarding their level of evidence and their methodological quality using respective tools for randomized and nonrandomized trials of the Cochrane collaboration. Meta-analysis for bioimpedance spectroscopy (BIS) values as well as upper and lower extremity strength was conducted. RESULTS Altogether, 29 studies were included in the systematic review. Results of six studies with altogether twelve RE intervention groups could be pooled for meta-analysis of the BCRL. A significant reduction of BCRL after RE was seen in BIS values (95% CI - 1.10 [- 2.19, - 0.01] L-Dex score). Furthermore, strength results of six studies could be pooled and meta-analysis showed significant improvements of muscular strength in the upper and lower extremities (95% CI 8.96 [3.42, 14.51] kg and 95% CI 23.42 [11.95, 34.88] kg, respectively). CONCLUSION RE does not have a systematic negative effect on BCRL and, on the contrary, potentially decreases it.
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Hasenoehrl T, Keilani M, Palma S, Crevenna R. Resistance exercise and breast cancer related lymphedema - a systematic review update. Disabil Rehabil 2019; 42:26-35. [PMID: 30638093 DOI: 10.1080/09638288.2018.1514663] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Background: Purpose of this systematic review update was analyzing resistance exercise (RE) intervention trials in breast cancer survivors (BCS) regarding their effect on breast cancer-related lymphedema (BCRL) status. Articles published until 31 September 2017 were included.Methods: A systematic literature search was conducted utilizing PubMed, MEDLINE, and EMBASE databases. Included articles were analyzed regarding their level of evidence and their methodological quality using the Cochrane risk of bias tool.Results: Altogether, 23 articles could be included of which 16 were independent RE intervention studies and seven additional articles. Lymphedema assessment was so heterogeneous that conduction of a thorough meta-analysis regarding lymphedema status was still impossible. In all but one study, which reported a small but methodologically weak increase in arm volume, no negative effects of RE on BCRL was recorded.Conclusions: RE seems to be a safe exercise intervention for BCS and not to be harmful concerning the risk of lymphedema. Lymphedema assessment methods that allow for a qualitative analysis of arm tissue composition should be favored.Implications for rehabilitationBreast cancer-related lymphedema affects a considerable proportion of breast cancer patients and is debilitating on the physical, functional, social, and psychological domain.At the current time breast cancer related lymphedema is incurable but well manageable by a number of physical therapy modalities, especially complete decongestive therapy (CDT).One of the encouraging treatment methods is resistance exercise.
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Affiliation(s)
- Timothy Hasenoehrl
- Department of Physical Medicine Rehabilitation and Occupational Medicine, Medical University of Vienna, Vienna, Austria
| | - Mohammad Keilani
- Department of Physical Medicine Rehabilitation and Occupational Medicine, Medical University of Vienna, Vienna, Austria
| | - Stefano Palma
- Department of Physical Medicine Rehabilitation and Occupational Medicine, Medical University of Vienna, Vienna, Austria
| | - Richard Crevenna
- Department of Physical Medicine Rehabilitation and Occupational Medicine, Medical University of Vienna, Vienna, Austria
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Ammitzbøll G, Johansen C, Lanng C, Andersen EW, Kroman N, Zerahn B, Hyldegaard O, Wittenkamp MC, Dalton SO. Progressive resistance training to prevent arm lymphedema in the first year after breast cancer surgery: Results of a randomized controlled trial. Cancer 2019; 125:1683-1692. [PMID: 30633334 DOI: 10.1002/cncr.31962] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/16/2018] [Accepted: 12/06/2018] [Indexed: 11/08/2022]
Abstract
BACKGROUND Existing research suggests that progressive resistance training (PRT) after breast cancer (BC) surgery is safe, but the preventive effect on arm lymphedema has yet to be determined. METHODS Women aged 18 to 75 years who were undergoing BC surgery with axillary lymph node dissection were eligible for the study. Recruited on the day of surgery, participants were allocated to intervention or usual care by computer randomization. The intervention consisted of PRT 3 times per week: in the first 20 weeks as a supervised group exercise and in the last 30 weeks as a self-administered exercise. The primary outcome was arm lymphedema, which was defined as a >3% increase in the interlimb volume difference by water displacement. Measurements were made at the baseline and at a 12-month follow-up by physiotherapists blinded to group allocation. Analyses of effects included t tests and regression models; missing data were addressed by multiple imputation. RESULTS Among the 158 randomized women, no mean group difference was found in arm volume (0.3%; 95% confidence interval, -1.7% to 2.3%) or lymphedema incidence (adjusted odds ratio, 1.2; 95% confidence interval, 0.5-2.8). None of the participants exited the program because of adverse events. CONCLUSIONS This study provides no evidence that PRT can prevent arm lymphedema in the first year after BC, but the results corroborate the importance and safety of resistance training for patients, including women at high risk for lymphedema.
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Affiliation(s)
- Gunn Ammitzbøll
- Survivorship Unit, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Christoffer Johansen
- Survivorship Unit, Danish Cancer Society Research Center, Copenhagen, Denmark.,CASTLE Late Effects Unit, Department of Oncology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Charlotte Lanng
- Department of Breast Surgery, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | | | - Niels Kroman
- Department of Breast Surgery, Copenhagen University Hospital Herlev, Copenhagen, Denmark.,Danish Cancer Society, Copenhagen, Denmark
| | - Bo Zerahn
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Ole Hyldegaard
- Section for Hyperbaric Oxygen Treatment, Department for Anesthetics and Operations, Center for Head and Orthopaedics, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Merete Celano Wittenkamp
- Department of Physiotherapy and Occupational Therapy, Copenhagen University Hospital Herlev and Gentofte, Copenhagen, Denmark
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Wanchai A, Armer JM. Effects of weight-lifting or resistance exercise on breast cancer-related lymphedema: A systematic review. Int J Nurs Sci 2019; 6:92-98. [PMID: 31406873 PMCID: PMC6608669 DOI: 10.1016/j.ijnss.2018.12.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 12/18/2018] [Accepted: 12/20/2018] [Indexed: 12/16/2022] Open
Abstract
The purpose of this systematic review was to identify the effects of weight-lifting or resistance exercise on breast cancer-related lymphedema. Published articles written in English were retrieved from electronic databases, including ScienceDirect, PubMed, Scopus, and CINAHL databases. Hand-searches for unpublished papers were also completed. Content analysis was used to examine articles that met the inclusion criteria. Among 525 searched papers, 15 papers met the inclusion criteria: 13 trials evaluated weight-lifting or resistance exercise alone and two trials evaluated weight-lifting or resistance exercise plus aerobic exercise. The results of the review showed that no arm volume change was observed for either exercise modality. In addition, six included studies showed that weight-lifting or resistance exercise did not cause lymphedema or adverse events in patients at risk of breast cancer-related lymphedema. For patients with breast cancer-related lymphedema, six studies reported that change of swelling outcome measures were not significantly different between the weight-lifting or resistance exercise group and the control group. However, three included studies reported that volume of arm was significantly more reduced in the weight-lifting or resistance exercise group than those in the control group. The findings suggest that supervised resistance exercise may be safe, feasible, and beneficial in patients with breast cancer-related lymphedema or at risk for breast cancer-related lymphedema. However, the limitation of small sample size implies that further research is needed to confirm these findings.
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Affiliation(s)
- Ausanee Wanchai
- Deputy Director for Academic Services and Research, Boromarajonani College of Nursing Buddhachinaraj, Muang, Phitsanulok, Thailand
| | - Jane M. Armer
- Sinclair School of Nursing, University of Missouri, Columbia, MO, USA
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Conejo I, Pajares B, Alba E, Cuesta-Vargas AI. Effect of neuromuscular taping on musculoskeletal disorders secondary to the use of aromatase inhibitors in breast cancer survivors: a pragmatic randomised clinical trial. Altern Ther Health Med 2018; 18:180. [PMID: 29890985 PMCID: PMC5996544 DOI: 10.1186/s12906-018-2236-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 05/21/2018] [Indexed: 12/27/2022]
Abstract
Background Aromatase inhibitors reduce breast cancer recurrence rates in postmenopausal women by about 30% compared with tamoxifen while treatments differ. Unfortunately, nearly half of women taking AIs report AI-associated arthralgia (AIA), leading to therapy abandon in on third of patients, which could lead to cancer recurrence. The purpose of the current study was to evaluate the effectiveness of Neuromuscular Taping (NMT) in the treatment of AIA in women who have been treated of BC. Methods This study included 40 BC survivors receiving endocrine therapy (either AIs or TMX) from Hospital Universitario Virgen de la Victoria (Málaga, Spain) suffered from AIA. Patients were randomized to one of the two groups that made this pilot study: A. Placebo intervention B. Real NMT. Clinical data were collected from medical history, grip strength, algometry measured, questionnaires and VAS scale. There have been three interventions prior to the completion of the study, 5 weeks later. The primary objective of this pilot study was to achieve an improvement of pain by 20% decrease of VAS. Results Significant differences in measures of VAS (p = 0.009), global health status/QoL (p = 0.005), fatigue (p = 0.01) and pain (p = 0.04) were observed post intervention with NMT. Conclusions An intervention by NMT to MSCM under treatment with AIs improves their subjective sensation of pain. In addition, this taping had an impact on variables related to the quality of life. This pilot study may be the basis for others to support the use of NMT for the treatment of AIAs, thereby improving their well-being and reducing the dropout rate. Trial registration ClinicalTrials.gov Identifier: NCT02406794. Registered on 2 April 2015 Retrospectively registered.
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Diagnostic Methods, Risk Factors, Prevention, and Management of Breast Cancer-Related Lymphedema: Past, Present, and Future Directions. CURRENT BREAST CANCER REPORTS 2017; 9:111-121. [PMID: 28894513 DOI: 10.1007/s12609-017-0237-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW Breast cancer-related lymphedema (BCRL) is a chronic, adverse, and much feared complication of breast cancer treatment, which affects approximately 20% of patients following breast cancer treatment. BCRL has a tremendous impact on breast cancer survivors, including physical impairments and significant psychological consequences. The intent of this review is to discuss recent studies and analyses regarding the risk factors, diagnosis, prevention through early screening and intervention, and management of BCRL. RECENT FINDINGS Highly-evidenced risk factors for BCRL include axillary lymph node dissection, lack of reconstruction, radiation to the lymph nodes, high BMI at diagnosis, weight fluctuations during and after treatment, subclinical edema within and beyond 3 months after surgery, and cellulitis in the at-risk arm. Avoidance of potential risk factors can serve as a method of prevention. Through establishing a screening program by which breast cancer patients are measured pre-operatively and at follow-ups, are objectively assessed through a weight-adjusted analysis, and are clinically assessed for signs and symptoms, BCRL can be tracked accurately and treated effectively. Management of BCRL is done by a trained professional, with research mounting towards the use of compression bandaging as a first line intervention against BCRL. Finally, exercise is safe for breast cancer patients with and without BCRL and does not incite or exacerbate symptoms of BCRL. SUMMARY Recent research has shed light on BCRL risk factors, diagnosis, prevention, and management. We hope that education on these aspects of BCRL will promote an informed, consistent approach and encourage additional research in this field to improve patient outcomes and quality of life in breast cancer survivors.
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Armer JM, Feldman JL, Ostby PL, Thrift KM, Lasinski BB, Beck MS, Rodrick JR, Norton S, Sun Y, Udmuangpia T, Armer NC, Stewart BR. Simplifying evidence-based management of breast cancer-related lymphedema. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/23809000.2016.1230019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bloomquist K, Hayes S, Adamsen L, Møller T, Christensen KB, Ejlertsen B, Oturai P. A randomized cross-over trial to detect differences in arm volume after low- and heavy-load resistance exercise among patients receiving adjuvant chemotherapy for breast cancer at risk for arm lymphedema: study protocol. BMC Cancer 2016; 16:517. [PMID: 27449067 PMCID: PMC4957879 DOI: 10.1186/s12885-016-2548-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 07/11/2016] [Indexed: 11/22/2022] Open
Abstract
Background In an effort to reduce the risk of breast cancer-related arm lymphedema, patients are commonly advised to avoid heavy lifting, impacting activities of daily living and resistance exercise prescription. This advice lacks evidence, with no prospective studies investigating arm volume changes after resistance exercise with heavy loads in this population. The purpose of this study is to determine acute changes in arm volume after a session of low- and heavy-load resistance exercise among women undergoing adjuvant chemotherapy for breast cancer at risk for arm lymphedema. Methods/Design This is a randomized cross-over trial. Participants: Women receiving adjuvant chemotherapy for breast cancer who have undergone axillary lymph node dissection will be recruited from rehabilitation centers in the Copenhagen area. Intervention: Participants will be randomly assigned to engage in a low- (two sets of 15–20 repetition maximum) and heavy-load (three sets of 5–8 repetition maximum) upper-extremity resistance exercise session with a one week wash-out period between sessions. Outcome: Changes in extracellular fluid (L-Dex score) and arm volume (ml) will be assessed using bioimpedance spectroscopy and dual-energy x-ray absorptiometry, respectively. Symptom severity related to arm lymphedema will be determined using a visual analogue scale (heaviness, swelling, pain, tightness). Measurements will be taken immediately pre- and post-exercise, and 24- and 72-hours post-exercise. Sample size: A sample size of 20 participants was calculated based on changes in L-Dex scores between baseline and 72-hours post exercise sessions. Discussion Findings from this study are relevant for exercise prescription guidelines, as well as recommendations regarding participating in activities of daily living for women following surgery for breast cancer and who may be at risk of developing arm lymphedema. Trial registration Current Controlled Trials ISRCTN97332727. Registered 12 February 2015. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2548-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kira Bloomquist
- University Hospitals Centre for Health Research (UCSF), Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen Ø, Denmark.
| | - Sandi Hayes
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove Urban Village, Kelvin Grove, Queensland, 4059, Australia
| | - Lis Adamsen
- University Hospitals Centre for Health Research (UCSF), Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen Ø, Denmark
| | - Tom Møller
- University Hospitals Centre for Health Research (UCSF), Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen Ø, Denmark
| | - Karl Bach Christensen
- Department of Public Health; Section of Biostatistics, University of Copenhagen, Øster Farimagsgade 5, 1014, Copenhagen K, Denmark
| | - Bent Ejlertsen
- DBCG, Afsnit 2501, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen Ø, Denmark
| | - Peter Oturai
- Department of Clinical Physiology, Nuclear Medicine and PET, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
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