ACE Cancer Exercise Specialist key terms

A cancer classification system that describes the size and spread of the primary tumor (T), whether cancer cells have reached nearby lymph nodes (N), and whether the disease has spread to distant organs (M). Clinicians combine these to assign an overall stage.

A description of how much cancer cells differ from normal cells of the same tissue, based on how quickly they appear to divide and how organized they look under a microscope. Higher grades generally indicate faster-growing, more aggressive tumors.

The spread of cancer cells from the original tumor to distant organs or lymph nodes, where they form new tumors. Metastatic disease usually requires systemic treatment and shapes exercise safety decisions such as fracture and fatigue risk.

Treatment given before primary surgery or radiation, often to shrink a tumor and make complete removal easier. It may include chemotherapy, hormone therapy, targeted agents, or radiation, and can affect fitness before the operation.

Additional treatment given after the main curative treatment, such as surgery, to reduce the chance that microscopic remaining cancer cells will grow into recurrent disease. Common forms include chemotherapy, hormone therapy, and targeted therapy.

A class of chemotherapy drugs, including doxorubicin and epirubicin, that damages cancer DNA but can also injure heart muscle. Cumulative dose is linked to cardiomyopathy, so survivors often need cardiac monitoring and carefully progressed aerobic exercise.

A type of immunotherapy that blocks proteins such as PD-1, PD-L1, or CTLA-4, helping immune cells recognize and attack cancer. It can cause immune-related side effects in many organs, including fatigue, joint pain, and myocarditis.

A 0-to-5 scale describing how independently a person with cancer can carry out daily activities and self-care. It helps clinicians judge prognosis and treatment tolerance and informs how aggressively exercise can be prescribed.

A persistent, distressing sense of physical, emotional, or cognitive tiredness related to cancer or its treatment that is not relieved by rest and interferes with usual activities. It is the most common reason exercise is prescribed during treatment.

Damage to the heart or its function caused by cancer treatment, such as anthracyclines, HER2-targeted drugs, or chest radiation. It may appear as reduced ejection fraction, heart failure, arrhythmia, or hypertension, and it affects exercise intensity limits.

Numbness, tingling, pain, or weakness in the hands and feet caused by nerve damage from certain chemotherapy drugs, notably platinum agents, taxanes, and vinca alkaloids. It raises fall risk and can limit balance and strength training.

A multifactorial wasting syndrome involving involuntary loss of muscle and fat that cannot be fully reversed by nutrition alone. It causes weakness and functional decline and calls for carefully dosed resistance and protein-supportive strategies.

Swelling caused by accumulation of lymph fluid, usually in an arm or leg, after lymph nodes or vessels are damaged by surgery or radiation. It requires monitoring and progressive, well-tolerated resistance exercise rather than avoidance.

Fever with a dangerously low neutrophil count, a medical emergency that signals high infection risk. Exercise should be avoided during the acute episode and resumed only after counts recover and the treating team agrees.

Scarring and stiffening of tissues that can develop months to years after radiation therapy, reducing joint mobility, muscle flexibility, and chest wall expansion. Gentle range-of-motion and stretching work helps preserve function in affected areas.

Joint pain and stiffness, especially in the hands and knees, that commonly develops in people taking aromatase inhibitors for hormone receptor-positive breast cancer. Supervised exercise and strength training can reduce symptoms and improve adherence to therapy.

A structured process of gathering medical history, treatment details, current symptoms, and activity habits before starting or progressing exercise, in order to identify people who need medical review or modified programming.

Permission from a treating clinician or qualified physician to begin or continue exercise, usually specifying restrictions, monitoring needs, and any activity limits. It is sought when screening reveals unstable disease, cardiac concerns, or other red flags.

Sorting people into low, moderate, or high-risk groups according to disease status, treatment toxicity, comorbidities, and current function, so that supervision level, testing intensity, and monitoring can be matched to likely harm.

The likelihood that weakened bone, often from metastatic lesions or long-term hormone therapy, will break under loading. It guides whether high-impact, twisting, or heavy resistance exercise should be avoided or modified.

A supervised treadmill or cycle test in which workload rises in stages until symptoms, electrocardiographic changes, or safety limits require stopping. It establishes functional capacity and safe training heart rates for selected cancer survivors.

A structured exercise, nutrition, and psychological program delivered between cancer diagnosis and planned surgery or other treatment, aiming to build functional reserve, reduce complications, and shorten recovery.

A framework for exercise prescription that specifies frequency, intensity, time, type, volume, and progression. Using all six elements makes programs explicit, measurable, and easier to adjust as treatment and symptoms change.

A submaximal field test measuring how far a person walks on a flat, measured course in six minutes. It reflects functional exercise capacity and is used to track change and set walking-based training targets.

Measuring the heaviest load a person can lift once with good form. In cancer settings it is often estimated from submaximal repetitions or replaced by low-load testing to reduce injury risk during treatment.

A self-reported scale, such as the 6-to-20 Borg scale or 0-to-10 scale, describing how hard an effort feels. It lets people set intensity when heart rate is unreliable because of treatment, medication, or fatigue.

A way to set aerobic intensity using the difference between maximal and resting heart rate, then taking a percentage of that range and adding resting heart rate back. It requires a reasonably accurate maximal heart rate estimate.

Systematically increasing training stress over time, through load, repetitions, sets, or frequency, as the body adapts. In cancer care, progression is slowed or paused during treatment toxicity and resumed when tolerance returns.

A condition in which exercise should not take place at all until it is resolved or treated, such as acute severe chest pain, uncontrolled arrhythmia, or suspected febrile neutropenia. Exercise resumes only after medical evaluation.

A condition that does not forbid exercise outright but requires modification, close supervision, or clinician consultation, such as marked anemia, uncontrolled hypertension, or painful bone lesions. The risk-benefit balance is judged case by case.

Predefined signs and symptoms that require stopping an exercise session immediately, such as chest pain, severe shortness of breath, dizziness, confusion, or new neurologic weakness. Staff document the event and arrange follow-up.

Measures used when white blood cell counts are low, including avoiding crowds, careful hand hygiene, and postponing strenuous or public-facility exercise. Group exercise may be paused until counts recover per the treating team.

Reduced production of blood cells by bone marrow, causing anemia, low platelets, and low white cells. It shapes exercise decisions because anemia limits aerobic capacity and low platelets increase bleeding and bruising risk.

A behavior-change framework describing readiness as stages: precontemplation, contemplation, preparation, action, and maintenance, with possible relapse. Interventions are matched to stage, so a contemplation-stage survivor receives education rather than a full program.

A collaborative conversation style that uses open questions, reflective listening, and affirmation to strengthen a person's own reasons for change. It reduces resistance and supports exercise adoption better than advice-giving alone.

A person's confidence that they can successfully perform a specific behavior, such as walking three times this week despite fatigue. It grows through mastery experiences, modeling, encouragement, and managing symptoms.

A process in which the person with cancer and clinicians exchange information about options, benefits, and risks, then agree on a plan that fits the person's values. It improves adherence to exercise and treatment recommendations.

A written summary given after primary treatment that describes the cancer, treatments received, recommended surveillance, potential late effects, and healthy-living advice. Exercise specialists use it to tailor long-term programming and coordinate with the care team.