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Reduced Manual Performance in Right-Handed Women With Breast Cancer.

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Breast cancer impairs manual dexterity, especially in the dominant hand, affecting daily activities. Rehabilitation should focus on hand coordination and neurological factors for breast cancer patients.

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Area of Science:

  • Neurology
  • Oncology
  • Rehabilitation Medicine

Background:

  • Breast cancer and its treatments can negatively impact neurological and motor functions.
  • Impaired manual dexterity affects patients' quality of life and daily functioning.
  • Understanding these effects is crucial for developing targeted rehabilitation strategies.

Purpose of the Study:

  • To investigate the impact of breast cancer on manual dexterity in right-handed women.
  • To compare manual dexterity between breast cancer patients and healthy controls.
  • To analyze hand performance differences based on tumor laterality.

Main Methods:

  • A comparative observational study design.
  • Inclusion of 201 women with breast cancer and 199 healthy controls.
  • Assessment of manual dexterity using peg-moving and dot-filling tasks.

Main Results:

  • Healthy women demonstrated superior manual dexterity compared to breast cancer patients, particularly with their dominant hand.
  • Breast cancer patients exhibited reduced asymmetry in performance between their right and left hands.
  • Patients with left-breast tumors showed more pronounced hand performance deficits.

Conclusions:

  • Breast cancer and its treatments significantly affect manual dexterity.
  • Deficits are likely linked to treatment side effects (neuropathy, fatigue) and disease-related neural changes.
  • Rehabilitation programs should address hand coordination and neurological factors to improve functional outcomes.