Inspiratory Muscle Training for Breast Cancer

(IMACT Trial)

This trial investigates whether breathing exercises, known as inspiratory muscle training (IMT), can benefit women with early-stage breast cancer undergoing chemotherapy. The aim is to determine if these exercises can enhance breathing muscle strength, reduce shortness of breath, and increase physical activity levels. Participants will use a small device that slightly resists inhalation, potentially strengthening their breathing muscles. The trial includes two groups: one performing low-intensity exercises and the other high-intensity exercises. Women who began chemotherapy within the last three weeks and can exercise independently may be suitable candidates for this trial. As an unphased trial, it offers a unique opportunity to explore new supportive care strategies that could improve quality of life during chemotherapy.

The trial information does not specify whether you need to stop taking your current medications. It's best to discuss this with the trial coordinators or your doctor.

Research has shown that inspiratory muscle training (IMT) is generally safe for breast cancer survivors. One study found that IMT improves breathing strength and reduces breathlessness. This training uses a small, hand-held device that increases resistance when breathing in, strengthening the breathing muscles.

Another study found that patients, including those who are overweight, tolerate IMT well, with no major safety concerns reported. The goal is to build muscle strength to ease breathing and enhance physical activity.

Researchers are excited about Inspiratory Muscle Training (IMT) for breast cancer patients because it offers a non-pharmacological approach to improving respiratory function and overall quality of life. Unlike traditional treatments like surgery, chemotherapy, or radiation, which directly target cancer cells, IMT focuses on strengthening the muscles involved in breathing. This method could potentially enhance recovery and reduce treatment-related fatigue. The trial explores both low-intensity and high-intensity IMT, providing insights into the optimal intensity for maximizing benefits without additional side effects.

Research has shown that breathing exercises, known as inspiratory muscle training (IMT), can aid breast cancer patients experiencing muscle problems from chemotherapy. This trial will compare two approaches: low-intensity IMT and high-intensity IMT. Studies have found that IMT significantly enhances breathing strength and overall physical ability in these patients. In one study, participants doing IMT had stronger breathing muscles and experienced less shortness of breath. Another study demonstrated that IMT could boost physical activity by strengthening the breathing muscles. These findings suggest that IMT might be a beneficial method for women undergoing chemotherapy for breast cancer to improve their breathing and physical fitness.¹²³⁶⁷