Non-chemotherapeutic Interventions for the Improvement of Quality of Life and Immune Function in Patients With Multiple Myeloma

Inclusion Criteria: * Age \>= 18 years of age * Have an Eastern Cooperative Oncology Group (ECOG) Performance Status of: * Module A: ECOG 0 - 1 * Module B: ECOG 0 - 2 * Module C: ECOG 0 - 2 * Module D: ECOG 0-1 * MODULE A, B and C: Have a diagnosis of smoldering multiple myeloma, multiple myeloma or plasma cell leukemia (PCL) or * MODULE D: non transfusion dependent low-risk MDS * Show no signs of comorbidities, myeloma symptoms, or treatment side effects that would put them in danger when participating in the study according to the physician's discretion * Are able to understand and follow assessment and intervention procedures * Participant must understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure * MODULE A and D (PHYSICAL ACTIVITY): Participant has access to a personal computer or tablet with camera, microphone, speakers and internet access * MODULE B (NUTRITION): Not applicable * MODULE C (BETA BLOCKER): Newly diagnosed patients with multiple myeloma necessitating treatment and before initiation of systemic therapy * MODULE C: Female participants of child-bearing potential must have a negative pregnancy test at study entry and then agree to use adequate contraceptive methods (e.g., hormonal or barrier method of birth control; abstinence) prior to study entry. Male patients with female partners of child-bearing potential should also use adequate contraceptive methods (see above). Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately MODULE D: Patients with MDS not necessitating transfusion therapy at time of enrollment (no transfusion within 8 weeks prior to enrollment) i.e. patients on observation, or receiving growth factors or luspatercept only Exclusion Criteria: * Major comorbidities that would cause danger to the patient when participating in the study and that would have a risk of progression if the patient took part in the study (including, but not limited to): cardiac or pulmonary and infectious diseases (e.g., ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia) or, psychiatric illness/social situations that would limit compliance with study requirements * Unwilling or unable to follow protocol requirements * Any condition which in the investigator's opinion deems the participant an unsuitable candidate to take part in study intervention (comorbidities, myeloma symptoms, treatment side effects) * MODULE A (PHYSICAL ACTIVITY): Current and symptomatic pathological fracture(s) or severely advanced instability of the musculo-skeletal system that is deemed to making the patient unsafe to participate. This will be assessed by radiologist, a neurosurgeon and/or an orthopedic surgeon, if applicable. * MODULE A (PHYSICAL ACTIVITY): Current and symptomatic pathological fracture(s) or severely advanced instability of the musculo-skeletal system * MODULE A (PHYSICAL ACTIVITY): Acute bone instability as assessed by whole body low-dose computed tomography and evaluated by an experienced surgeon * MODULE B (NUTRITION): Clinical signs of malnutrition (body mass index \[BMI\] \< 18) * MODULE B (NUTRITION): Special diets (physician prescribed) * MODULE B (NUTRITION): Diabetic treated with glucose-lowering medications and/or insulin * MODULE B (NUTRITION): Other reasons not to withhold food * MODULE B (NUTRITION): Any condition which in the investigator's opinion deems the participant an unsuitable candidate to limit food consumption * MODULE C (BETA BLOCKER): Current use of a beta blocker (includes all non-selective and beta-1 selective blockers) or, use of a beta-blocker within 3 months of study enrollment * MODULE C (BETA BLOCKER): Contraindications to the use of beta-blockers, e.g.; severe sinus bradycardia; sick sinus syndrome; or heart block greater than first-degree, uncontrolled depression, unstable angina pectoris, uncontrolled heart failure (New York Heart Association \[NYHA\] Grade III or IV), hypotension ( systolic blood pressure \< 100 mmHg), severe asthma or chronic obstructive pulmonary disease (COPD), uncontrolled type I or type II diabetes mellitus (HbA1C \> 8.5 or 12h fasting plasma glucose \> 160 mg/dL at screening), symptomatic peripheral arterial disease or Raynaud's syndrome, untreated pheochromocytoma, current calcium channel blocker use (Non-dihydropyridines such as verapamil) or rhythm control agents such as digoxin and amiodarone. Patients with pacemakers will be excluded * MODULE C (BETA BLOCKER): Pregnant or nursing female participants, where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by a positive human chorionic gonadotropin (hCG) laboratory test * MODULE D: Cardiovascular disease which is deemed limiting exercise readiness by a cardiologist