Exercise Therapy and Radiation Therapy (EXERT) for Metastatic Prostate Cancer

Patient Reported Outcome Measurement Information System (PROMIS) Global Health v1. 2 short form is a 10-item instrument representing multiple domains. Scores are assigned for both Global Physical Health component and Global Mental Health component. The response scores range from 1-5, where 1 = always and 5 = Never. A higher score from responses indicate better health.

The hypothesis is that adding exercise therapy (ET) to radiation therapy (RT) will improve progression free survival, measured using RECIST criteria

The hypothesis is that adding exercise therapy (ET) to radiation therapy (RT) will improve overall survival, from the date of start of palliative radiotherapy until death.

Objectively-measured physical function will be assessed using the Short Physical Performance Battery (SPPB).

The SPPB is an accumulation of balance tests, 4-meter gait speed, and 5-chair stands. Based on the time needed to complete the chair stands, a score is given. A summation of scores from all tests is taken, ranging from 0 -12. A higher score = Higher physical function.

Objectively-measured physical function will be assessed using the Six Minute Walk Test (6MWT).

Distance walked during 6 minutes (measured in meters) is measured. Longer distance = higher aerobic capacity.

Reliable and valid evaluation of hand strength can provide an objective index of general upper body strength. Hand grip strength can be quantified by measuring the amount of static force that the hand can squeeze around a dynamometer. The force is measured in kilograms and/or pounds and corresponds.

QoL will be assessed with the validated 30-item self-assessment questionnaire of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30, version 3.0).

The PRO-CTCAE characterizes the frequency, severity, interference, and presence/absence of symptomatic toxicities that include pain, fatigue, nausea, and cutaneous side effects that can be meaningfully reported from the patient perspective. PRO-CTCAE responses are scored from 0 to 4 (or 0/1 for absent/present) and evaluate the symptom attributes of frequency, severity, interference, amount, presence/absence. Each symptomatic Adverse Event is assessed by 1-3 attributes. Criteria for grading on the CTCAE scale vary by toxicity. Grade 1: asymptomatic or mild symptoms not requiring intervention. Grade 2: moderate symptoms that interfere somewhat with daily function and where some intervention may be indicated. Grade 3: severe symptoms that interfere with daily activities or require more significant intervention. Grade 4: toxicity that is life-threatening, with urgent intervention indicated.

Physical activity behavior in the domains of commuting activity, leisure time activities such as cycling, walking, and sports, household and occupational activity will be assessed via a standardized and validated questionnaire, the Godin Physical Activity Questionnaire. Total weekly leisure activity is calculated in arbitrary units by summing the products of the separate components, as shown in the following formula:

Weekly leisure activity score = (9 × Strenuous) + (5 × Moderate) + (3 × Light) Higher activity score = more active

The Fatigue Symptom Inventory (FSI) assesses the frequency and severity of fatigue as well as its perceived disruptiveness. Frequency is measured as the number of days in the past week (0-7) respondents felt fatigued as well as the percentage of each day on average they felt fatigued (0 = none, 10 = entire day).

A 2-4mL blood sample will be collected to determine participants levels of the biomarker IL-1Ra. Samples will be run via ELISA and concentrations will be reported as pg/mL.

The Work Productivity and Activity Impairment Questionnaire assesses the effect of patient's health problems on their ability to work and perform regular activities. Subjects self reports as "fill in blank" answers to questions and also as circling a number on a 10 point scale where 0 = Problem had no effect on my work and 10 = Problem completely prevented me from doing my daily activities.

Examines factors that have an impact on the development and implementation of and adherence to a personal physical activity plan. Questions are scored on a range of 0-3 where, Very Unlikely = 0 and Very Likely = 3. Barriers to physical activity fall into one or more of seven categories: lack of time, social influences, lack of energy, lack of willpower, fear of injury, lack of skill, and lack of resources. A score of 5 or above in any category shows that this is an important barrier to overcome.

A 2-4mL blood sample will be collected to determine participants levels of pro- and anti-inflammatory biomarkers.