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Exercise Intervention for Breast Cancer Patients With Sarcopenia

Not Yet RecruitingNA

Sponsor: Capital Medical University

Conditions: Sarcopenia, Breast Cancer

Interventions: "Exercise for Muscle Health" Program

Countries: China

Sarcopenia is a common yet underrecognized complication in breast cancer survivors during rehabilitation, characterized by loss of muscle mass, reduced muscle strength, and impaired physical function, which adversely affects quality of life and long-term outcomes. Exercise has been identified as a promising non-pharmacological intervention for sarcopenia; however, evidence-based exercise programs specifically tailored for breast cancer patients with sarcopenia remain limited. This study aims to develop and evaluate a 12-week exercise intervention program ("Exercise for Muscle Health") for breast cancer patients with sarcopenia during rehabilitation. A randomized controlled trial will be conducted to assess the effectiveness of the intervention. A total of 104 eligible participants will be randomly assigned in a 1:1 ratio to either the intervention group or the control group. The intervention group will receive a 12-week structured exercise program combined with health education, while the control group will receive routine rehabilitation care with general physical activity recommendations. The primary outcomes include changes in appendicular skeletal muscle mass index (ASMI), handgrip strength, Short Physical Performance Battery (SPPB) score, and physical fitness (2-Minute Step Test and 30-second Chair-Stand Test). Secondary outcomes include sarcopenia-related knowledge, cancer self-efficacy, social support, anxiety, fatigue, and quality of life. Assessments will be conducted at baseline (T0), mid-intervention (week 6, T1), immediately post-intervention (week 12, T2), and 3 months post-intervention (T3). The hypothesis is that the 12-week "Exercise for Muscle Health" program will significantly improve muscle mass, muscle strength, and physical function compared to routine care, and will be feasible, acceptable, and safe for breast cancer patients with sarcopenia during rehabilitation.

Eligibility overview

Sex: ALL

Age: 18 Years to —

Healthy volunteers: No

Study type: INTERVENTIONAL

Eligibility criteria

Inclusion Criteria:

Female, aged ≥18 years;

Pathologically confirmed diagnosis of breast cancer, having completed primary treatment (surgery, chemotherapy, radiotherapy, etc.) and currently in the rehabilitation phase (≥3 months after treatment completion);

Meet sarcopenia diagnostic criteria assessed by trained researchers: for women aged ≥65 years, ASMI \< 0.57 and handgrip strength \< 18 kg; for women aged \<64 years, ASMI \< 0.63 and handgrip strength \< 20 kg;

Provide informed consent and voluntarily participate in the study;

Have basic communication and comprehension abilities.

Exclusion Criteria:

History of psychiatric disorders or consciousness impairment;

Presence of exercise contraindications including severe cardiac, hepatic, or renal insufficiency, bone metastases, or uncontrolled hypertension;

Major surgery or severe trauma within the past 3 months;

Involuntary weight loss \>5% within the past 3 months, or presence of active progressive tumor burden (e.g., imaging evidence of significant metastasis or receiving palliative chemotherapy), suggesting tumor-driven cachexia;

Currently participating in other exercise intervention studies or having completed other exercise programs within the past 6 months;

Refusal of randomization.

Locations (1)

Beijing, Beijing Municipality, China