Thirty-second sit-to-stand test as an alternative for estimating peak oxygen uptake and 6-min walking distance in women with breast cancer: a cross-sectional study

Association between the 6MWT and other measurements of physical functioning in patients with cancer awaiting major surgery

BACKGROUND

The Six Minute Walk Test (6MWT) is a widely used measure of functional capacity in (p)rehabilitation of cancer patients, but it is time-consuming and requires specific space conditions. In this study we explore the association between the 6MWT with other measurements of physical functioning and their predictive value in classifying patients according to their estimated functional capacity.

DESIGN

This prospective study included cancer patients referred to a prehabilitation programme prior to major surgery. For each patient, data on different measurements of physical functioning including the Duke Activity Status Index (DASI), the handgrip strength, the 30" Sit-to-Stand Test and self-reported physical activity levels were collected. Bivariate associations were performed to determine the association between the 6MWT and other variables. Multivariate analyses were performed to identify potential predictive factors of 6MWT in this population. A subsequent algorithm was developed to classify patients based on their functional capacity (good performance - 6MWT>400 m or poor performance 6MWT<400 m) RESULTS: Between mid-2018 to mid 2022, 692 patients were assessed of whom the 6MWT was performed in 524 (75.7 %) (mean age 72.5 ± 11.8 years; 57.1 % men). Moderate-to-strong correlations were found between 6MWT and 30" Sit-To-Stand Test (r = 0.54, p < 0.001), DASI (r = 0.68; p < 0.001) and handgrip strength (r = 0.5; p < 0.001). Multivariate analyses confirmed that a combination of six variables were able to classify 80 % of patients in good (>400 m) or poor (<400 m) performance in the 6MWT.

CONCLUSION

The 6MWT was moderately associated with several variables of physical functioning, a combination of which can be used to predict performance in the 6MWT.

30-Second Chair Stand and 5-Times Sit-to-Stand Tests Are Interesting Tools for Assessing Disability and Ability to Ambulate among Patients with Multiple Sclerosis

Multiple Sclerosis (MS) is a demyelinating and chronic disease with variable neurological symptoms. There are different scales that score the level of disability, but only few papers have taken into consideration the 5-times sit-to-stand (5STS) test and the 30 s chair stand test (30CST), which are valid and easily obtainable indicators of other neurological diseases. The aim of our research is to verify the validity, reproducibility, and responsiveness of these tests. Patients afflicted with MS were enrolled in the AISM outpatient facility. The inclusion criterion was an EDSS score less than 6.5. We performed the 5STS, 30CST, and timed 25-foot walk (T25-FW) tests and recorded EDSS scores in the first evaluation. Then, we recorded the performance after 5 days (conducted by a second blind operator to ensure test-retest reproducibility), and the last evaluation was made after 12 sessions of physiotherapy. We recruited 38 patients diagnosed with MS. The results show significant data regarding validity, reproducibility, and responsiveness for both scales. The data argue in favor of adding these tests to the relevant clinical assessments. These two tests are simple, reliable, and easy to administer, and the data confirm that they can be included in the evaluation of patients with MS.

Exercise capacity prior to major cancer surgery: A cross-sectional observational study of the validity of the 6-minute walk and 30-second sit-to-stand tests

INTRODUCTION

Cardiopulmonary exercise testing (CPET) is the gold standard for measuring exercise capacity, however, it is resource intensive and has limited availability. This study aimed to determine: 1) the association between the 6-min walk test (6MWT) and the 30-s sit-to-stand test (30STS) with CPET peak oxygen uptake (VO2peak) and anaerobic threshold (AT) and 2) 6MWT and 30STS cut points associated with a higher risk of postoperative complications.

METHODS

A cross-sectional study, retrospectively analyzing data collected from a tertiary cancer center over a 23-month period. Measures included CPET VO2peak and AT, 6MWT and 30STS test. Correlations were used to characterize relationships between variables. Receiver operating characteristic curve analyses determined 6MWT and 30STS cut points that aligned with CPET variable cut points.

RESULTS

Note that, 156 participants were included. The 6MWT and 30STS displayed moderate correlations with VO2peak, rho = 0.65, p = 0.01 and rho = 0.52, p < 0.005 respectively. Fair correlations were observed between AT and 6MWT (rho = 0.36, p = 0.01) and 30STS (rho = 0.41, p < 0.005). The optimal cut points to identify VO2peak < 15 mL/kg/min were 493.5 m on the 6MWT and 12.5 stands on the 30STS test and for AT < 11 mL/kg/min were 506.5 m on the 6MWT and 12.5 stands on the 30STS test.

CONCLUSION

Both the 6MWT and 30STS test could be used as alternative tools for measuring exercise capacity preoperatively in the cancer setting where CPET is not available. A range of 6MWT and 30STS cut points, according to sensitivity and specificity levels, may be used to evaluate risk of postoperative outcomes.

Keep calm and keep rowing: the psychophysical effects of dragon boat program in breast cancer survivors

PURPOSE

Dragon Boat discipline has become a popular type of physical exercise among women with breast cancer. The present study aims to investigate the effects of Dragon Boat activity on body composition, physical function, and psychosocial aspects (i.e., body appreciation and quality of life [QoL]) in women operated for breast cancer.

METHODS

Thirty-one women (age, 57.88 ± 7.88 years; BMI, 27.86 ± 6.38 kg·m-2) with a previous breast removal surgery were recruited and randomized into two groups: Dragon Boat group (DB, N = 18) or a home-based non-supervised training program (home exercise group; HG, N = 13). All participants underwent body composition, handgrip test, 30-s chair stand test (30CST), 6-min walking test (6MWT), and shoulder mobility measurements at baseline and after 12 weeks of intervention. Participants also filled out the Body Appreciation Scale-2 (BAS-2) and the Short Form Health Survey-12 (SF-12) self-report questionnaires.

RESULTS

Dragon Boat activity significantly improved the 30CST (+ 6%, p = .011) and 6MWT performance (+ 30%, p = .011) compared to a home-based non-supervised training program. Moreover, 20% (3/15 women) of women in the DB group obtained a reliable change from pre- to post-intervention in the BAS-2 and in the mental QoL component of the SF-12 (vs 15% and 0% of the HC group). No reliable change emerged for the physical component of the SF-12.

CONCLUSION

Dragon Boat activity is efficient to improve lower limb strength in women operated for breast cancer. Furthermore, Dragon Boat activity emerged to improve body appreciation and mental QoL in some of the women assigned to this activity. Importantly, no adverse events were documented during the intervention.

TRIAL REGISTRATION

NCT05206526 (10/02/2022).

Comprehensive Assessment of Lower Limb Function and Muscle Strength in Sarcopenia: Insights from the Sit-to-Stand Test

The sit-to-stand test is an essential tool used to assess lower limb function and muscle strength in older adults and various patient populations, and also plays a role in sarcopenia screening. Among its forms, the five-time sit-to-stand test (FTSST) is widely used, with previous studies suggesting cutoff values of >10 seconds and >11 seconds for the sitting-to-standing and standing-to-sitting transitions, respectively. The 30-second and 1-minute sit-to-stand tests (30STS and 1MSTS, respectively) also provide comprehensive assessments. While much of the current research on sarcopenia focuses on the FTSST, there is a burgeoning need for an in-depth exploration of the 30STS and 1MSTS. Studies on these tests are vital to refine the criteria for sarcopenia, establish accurate cutoff values, and enhance diagnostic precision and treatment effectiveness. This need highlights the importance of further research into the 30STS and 1MSTS for refining the diagnostic criteria for sarcopenia.

Unraveling the "golden ratio": a pilot study investigating acute-to-chronic workload ratio in breast cancer patients undergoing active treatment

Training load monitoring is a common practice in sports medicine for supporting athletes' health and performance. Despite progress in exercise oncology research for breast cancer patients, training load monitoring is underutilized. This study retrospectively investigated the relationship between maintained training load within a defined range and physical and health outcomes of ten breast cancer patients during active anticancer treatment who underwent a 12-week exercise program. Intervention consisted of endurance and resistance training, three times a week, with each session lasting 30-45 min. Assessments were conducted at baseline, 6 and 12 weeks after enrollment, evaluating physical function (6-min walk test-6MWT, and sit-to-stand), muscle strength, body composition, sleep quality (Pittsburgh Sleep Quality Index-Pittsburgh Sleep Quality Index), quality of life (EORTC-QLQ-C30), heart rate variability and physical activity levels (International Physical Activity Questionnaire-International Physical Activity Questionnaire). The Physiological Cost Index/Energy Expenditure Index (PCI/EEI) was estimated using the 6MWT and Heart rate. Training load monitoring was performed by session rating of perceived exertion (sRPE, relative intensity multiplying with session duration). Acute-to-Chronic Workload Ratio (ACWR) (7:28, rolling average) was calculated accordingly. Analyses were performed within-subjects across time points and between-subjects, comparing those who maintained from weeks 6-12 an ACWR of 0.8-1.3 with those who did not. Adherence rates were similar between groups. Physical function improved in the total sample with large effect sizes (Δ6MWT = 56.5 m [95%CI: 6-100 m], effect size [w] = 0.52, p = 0.006; ΔSit-to-Stand = 1.5 [95%CI: 1-5], effect size [w] = 0.681, p < 0.001), demonstrating greater changes in patients with higher ACWR. Sleep quality improvements were higher in the appropriate ACWR group (p = 0.016). A positive correlation was demonstrated between global health status and 6MWT change from baseline to 12 weeks (ρ = 0.689, p = 0.04). Despite a small sample size, patients maintaining sufficient relative training load presented greater physical fitness and sleep quality improvements. Thus, training load monitoring may enhance exercise program benefits in breast cancer patients under active treatment.

Outcome Measures and Patient-Reported Metrics in Cancer Rehabilitation

PURPOSE OF REVIEW

The current panorama of measurement tools for use in cancer rehabilitation is reviewed. For rehabilitation purposes, evaluating function is of the highest priority.

RECENT FINDINGS

From a patient-reported outcome (PRO) standpoint, SF-36 and EORTC-QLQ-C30 are in most common use in cancer rehabilitation research; these are quality of life measures that contain functional subdomains. Newer tools which are based on item response theory and have options for both computer assisted or short form (SF) administration, including the Patient-Reported Outcomes Measurement Information System (PROMIS) and Activity Measure for Post-acute Care (AMPAC) instruments, show increasing use, especially PROMIS Physical Function SF, and, recently, PROMIS Cancer Function Brief 3D, which has been validated in the cancer population, with domains of physical function, fatigue, and social participation, to track clinical rehabilitation outcomes. Evaluating objective measures of function in cancer patients is also crucial. Utilization of clinically feasible tools for cancer rehabilitation, to employ for both screening purposes and for monitoring of rehabilitation treatment efficacy, is an evolving area, much needed to promote further research and improved, consistent clinical care for cancer patients and survivors.

Case-control study of the correlation between the five times sit to stand and 6-min walk distance in patients with pancreatic cancer

PURPOSE

Cases of pancreatic cancer are increasing, and the risk of developing this disease reportedly increases with age. In recent years, there has been an increasing number of reports on physical function in patients with pancreatic cancer. Methods such as the 6-min walk distance (6 MWD) should be established to evaluate physical function, as a decline in exercise capacity is an important index in these patients. Recently, the 6 MWD has also been used to evaluate physical function in patients with pancreatic cancer. In healthy older adults, a decrease in 6 MWD is reportedly associated with intrinsic capacity and health status. Such factors make assessing 6 MWD important. However, the measurement of 6 MWD requires a sizable measurement environment. The five times sit to stand (FTSTS) test is a simple method that can be performed using a chair. FTSTS is hypothesized to be a useful assessment scale in patients with pancreatic cancer because it is easy to estimate the decline in physical function in clinical practice if the decline in 6 MWD can be estimated by evaluating FTSTS. The study's purpose was to clarify this hypothesis and ascertain the cutoff required to determine the decrease in 6 MWD in clinical practice.

METHODS

Sixty consecutive patients with preoperative pancreatic cancer who were assessed for physical function were studied. 6 MWD (< 400 m) was the objective variable, and binary logistic regression analysis was performed, with age, BMI, sex, FTSTS, and HGS as explanatory variables. Receiver-operating characteristic (ROC) curve analysis was performed for the explanatory variables, which were found to be significant based on logistic regression analysis. The area under the curve (AUC) was also calculated. Sensitivity, specificity, negative predictive value (NPV), and positive predictive value (PPV) were evaluated. This study was approved by Hiroshima University Hospital's ethics committee (approval number: E808-1).

RESULTS

Fifty-seven of the 60 patients were included in the analysis. Logistic regression analysis showed that FTSTS was a significant explanatory variable; ROC curve analysis showed an AUC of 0.872 and a cutoff value of 8.98 s. The sensitivity, specificity, PPV, and NPV were 82.4%, 80.0%, 63.6%, and 91.4%, respectively.

CONCLUSIONS

A decrease in 6 MWD in preoperative pancreatic cancer patients can be identified by performing FTSTS.