Inclusion Criteria:
* PATIENT INCLUSION:
* Patient participants must have a histologically confirmed diagnosis of World Health Organization (WHO) grade 1-4 PBT such as glioblastoma, astrocytoma, oligodendroglioma, ependymoma, medulloblastoma, meningioma, and other primary brain tumors. Confirmed by review of the electronic medical record (EMR) and subsequently recorded in health history questionnaire. In cases where the EMR isn't clear, their Oregon Health \& Science University OHSU provider will be contacted for confirmation
* Patient participants on active oral chemotherapy, including cytotoxic chemotherapy and molecularly targeted therapy, for the treatment of PBT are allowed
* Patient participants must be at least 6 weeks after the last dose of intravenous infusion chemotherapy for the treatment of PBT, including bevacizumab, prior to enrollment
* Patient participants must be at least 6 weeks post-radiation for PBT prior to enrollment. Patient participants must be at least 8 weeks post-craniotomy prior to enrollment
* Patient participants must have a co-residing spouse or partner caregiver due to the program's focus on intimacy
* Patient participants must have a Karnofsky performance score of at least 70 or an Eastern Cooperative Oncology Group (ECOG) score of 1 or less
* Patient participants are permitted to participate in other therapeutic interventional clinical trials for PBT
* PATIENT AND CAREGIVER INCLUSION:
* Patient participants and caregiver participants must be 18 years of age or older
* Patient participants and caregiver participants must state willingness to comply with all study procedures and availability for the duration of the study
* Patient participants and caregiver participants must have the ability to understand and the willingness to sign a written informed consent document
* Patient participants and caregiver participants must have home internet sufficient for videoconferencing
Exclusion Criteria:
* PATIENT AND CAREGIVER EXCLUSION:
* Patient and caregiver participants must not have engaged in two or more regular strength training sessions per week (e.g., physical therapy) during the past 30 days, as confirmed by self-report on the health history questionnaire
* Patient participants and caregiver participants with cognitive difficulties preclude answering survey questions. In the event of a suspected undeclared cognitive impairment, it will be confirmed by physician clearance or professional opinion of the principal investigator
* Because this exercise intervention has not been evaluated in pregnant populations and the study team cannot provide the enhanced monitoring needed to ensure maternal and fetal safety, participants who are pregnant or planning pregnancy are excluded
* Patient participants and caregiver participants with medical condition, movement condition, pre-existing focal neurological deficits, new focal deficits concerning for recurrent or progressive PBT necessitating second line treatment, post operative deficits/wound, or medication use that contraindicates participation in moderate intensity exercise. Specific contraindications include the following: 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 without a walker or wheelchair, inability to stand for 3 minutes, severe hearing or vision problem
* Confirmed by a combination of reviewing the EMR, self-report on the health history questionnaire, and/or by physician clearance. All patient participants will receive physician clearance by the neuro-oncology investigators prior to participating in the trial. For caregiver participants: must answer 'No' to American College of Sports Medicine pre-participation screening questions. If caregiver participants answer 'Yes' to either question they may be required to obtain physician clearance prior to being considered eligible. Physician clearance may also be requested at the discretion of the principal investigator