Energy System Assessment in Metastatic Breast Cancer: A Cross-Sectional Study
Background: Metastasis breast cancer commonly report physical and psychosocial side effects, which requires a supervised exercise prescription with an individualized assessment. This cross-sectional study examined the feasibility of energy system-based assessment, also generating descriptive values for assessment performance in this population.
Methods: This cross-sectional study recruited 70 women diagnosed with metastatic breast cancer. After baseline assessment, participants attempted up to three energy system assessments: submaximal aerobic (multi-stage treadmill); anaerobic alactic (30-second sit-to-stand [30-STS]); and anaerobic lactic (adapted burpees). Heart rate and rating of perceived exertion (RPE) were recorded. Secondary outcomes included body composition, CRF and upper- and lower-limb functionality.
Results: 64 and 70 of the participants performed the submaximal aerobic test and the 30-STS, respectively, and 5 completed the adapted burpees task. Heart rate and RPE specific to each task were correlated, reflecting increased intensity. Women reported low-moderate levels of CRF [3(2.1)] and moderate-high functionality levels [upper-limb: 65.8% (23.3); lower-limb: 63.7% (34.7)].
Conclusions: Using a combination of heart rate and RPE, as well as baseline assessment of each energy system, clinicians may improve ability to prescribe personalized exercise and give patients greater ability to self-monitor intensity and progress.
Trial registration: ClinicalTrials.gov ID NCT03879096
Figure 1
Posted 22 Sep, 2020
Received 17 Dec, 2020
On 27 Sep, 2020
Invitations sent on 22 Sep, 2020
On 30 Aug, 2020
On 29 Aug, 2020
On 29 Aug, 2020
On 28 Aug, 2020
Energy System Assessment in Metastatic Breast Cancer: A Cross-Sectional Study
Posted 22 Sep, 2020
Received 17 Dec, 2020
On 27 Sep, 2020
Invitations sent on 22 Sep, 2020
On 30 Aug, 2020
On 29 Aug, 2020
On 29 Aug, 2020
On 28 Aug, 2020
Background: Metastasis breast cancer commonly report physical and psychosocial side effects, which requires a supervised exercise prescription with an individualized assessment. This cross-sectional study examined the feasibility of energy system-based assessment, also generating descriptive values for assessment performance in this population.
Methods: This cross-sectional study recruited 70 women diagnosed with metastatic breast cancer. After baseline assessment, participants attempted up to three energy system assessments: submaximal aerobic (multi-stage treadmill); anaerobic alactic (30-second sit-to-stand [30-STS]); and anaerobic lactic (adapted burpees). Heart rate and rating of perceived exertion (RPE) were recorded. Secondary outcomes included body composition, CRF and upper- and lower-limb functionality.
Results: 64 and 70 of the participants performed the submaximal aerobic test and the 30-STS, respectively, and 5 completed the adapted burpees task. Heart rate and RPE specific to each task were correlated, reflecting increased intensity. Women reported low-moderate levels of CRF [3(2.1)] and moderate-high functionality levels [upper-limb: 65.8% (23.3); lower-limb: 63.7% (34.7)].
Conclusions: Using a combination of heart rate and RPE, as well as baseline assessment of each energy system, clinicians may improve ability to prescribe personalized exercise and give patients greater ability to self-monitor intensity and progress.
Trial registration: ClinicalTrials.gov ID NCT03879096
Figure 1