EXERCISING TOGETHER for Couples Coping With Cancer

Inclusion Criteria:

* SURVIVORS ONLY:
* Histologically confirmed PC, BC or CRC without evidence of metastatic disease (confirmed by self-report on Health History Questionnaire. In the case a participant isn't able to confirm this criterion, a letter will be sent to his or her physician)
* Three years or less from diagnosis date, by month and year, at time of enrollment (confirmed by self-report on Health History Questionnaire. In the case a participant isn't able to confirm this criterion, a letter will be sent to his or her physician)
* Completed treatment (e.g., surgery, radiation and/or chemotherapy) \>= 6 weeks prior to enrollment. Concurrent adjuvant hormone therapy is permitted and must have been initiated \>= 6 weeks prior to enrollment. For prostate cancer, androgen deprivation therapy (ADT) may constitute primary treatment and must have been initiated \>= 6 weeks prior to enrollment. For breast cancer, hormone therapy may constitute primary treatment and must have been initiated \>= 6 weeks prior to enrollment. (confirmed by self-report on Health History Questionnaire. In the case a participant isn't able to confirm this criterion, a letter will be sent to his or her physician)
* Co-residing with an intimate partner or spouse who is willing to participate (confirmed by self-report on Health History Questionnaire)
* SURVIVORS AND SPOUSES/PARTNERS:
* Underactive (\< 2 strength training sessions per week, lasting 30 minutes or more per session, at a moderate intensity in the last month) (confirmed by self-report on Health History Questionnaire or by discretion of the principal investigator)

Exclusion Criteria:

* SURVIVORS AND SPOUSES/PARTNERS
* Cognitive difficulties that preclude answering the survey questions, participating in the exercise classes or performance tests, or providing informed consent as determined by the professional opinion of the principal investigator, Dr. Kerri Winters-Stone
* A medical condition, movement or neurological disorder, or medication use that contraindicates participation in moderate intensity exercise. Specific contraindications include the following: declared pregnancy, poorly controlled diabetes, recent cardiac event, neuromuscular disease, untreated orthostatic hypertension, recent surgery, acute hernia, acute rheumatoid arthritis, severe memory disorders, severe balance disorder, inability to ambulate (use of an assistive device permitted), inability to stand for 3 minutes, severe hearing or vision problem. (For Survivor: Confirmed by physician clearance; For Spouse/Partner: must answer 'No' to American College of Sports Medicine pre-participation screening questions. If spouse/partner answers 'Yes' to either question they will be considered eligible upon physician clearance. Physician clearance may also be requested at the discretion of the principal investigator. For either: absence of pregnancy in persons who could possibly be pregnant but have not declared a pregnancy at screening, will be further screened with a pregnancy test administered at each testing visit.)
* Knowingly unable to attend \> 75% of the intervention classes due to conflict with the designated time of day, days of the week, and/or location for the exercise class which they initially enrolled. (Confirmed by documentation in the Case Report Form titled "CRF - Participant Contact Info\_Exercising Together")
* Not fluent in English and therefore incapable of answering survey questions, participating in class, following directions during performance testing, and providing informed consent when English is the language used. (Confirmed by documentation in the Case Report Form titled "CRF - Participant Contact Info\_Exercising Together" or the professional opinion of the Principal Investigator, Dr. Kerri Winters-Stone.)