Mighty Nimble
Mighty Nimble
Download App

25-Minute CKD-Friendly Intermediate Fitness

Low-impact cardio + full-body strength with controlled intensity (RPE ~5–6).

Warm-Up

Gradually raise heart rate and loosen shoulders/hips. 5 minutes.

March in Place
March in Place2 min
Arm Circles
Arm Circles1 min
Side Step
Side Step2 min

Circuit A

Moderate pace. Use a chair for support on step-ups if needed.

Sit to Stand
Sit to Stand10x
Wall Push-Up
Wall Push-Up12x
Step-Up
Step-Up8x each side
2 rounds · 30 sec rest
1 min rest

Circuit B

Core and posterior chain. Keep hips level on bird dog.

Bird Dog
Bird Dog8x each side
Glute Bridge
Glute Bridge12x
Calf Raise
Calf Raise15x
2 rounds · 30 sec rest

Cool-Down

Bring breathing down and relax the trunk/shoulders. 3 minutes.

Diaphragmatic Breathing
Diaphragmatic Breathing3 min
Muscle Demand Without Metabolic Stress

Muscle Demand Without Metabolic Stress

Sit to Stand and Glute Bridge target the posterior chain and quadriceps through controlled, closed-chain movement that builds functional strength without spiking creatinine-producing muscle breakdown. Wall Push-Ups and Bird Dog recruit stabilizing musculature at low enough intensity to avoid the acidic metabolic byproducts that compromised kidneys struggle to clear.

Why CKD Changes Every Rep

Why CKD Changes Every Rep

Chronic kidney disease alters phosphate regulation, erythropoietin production, and fluid balance — meaning fatigue arrives faster and cardiovascular response is less predictable. The RPE 5–6 ceiling here isn't conservative, it's precise: it keeps you below the threshold where blood pressure spikes and protein catabolism accelerates, two factors that directly affect kidney filtration load.

Periodization Built Around Recovery Capacity

Periodization Built Around Recovery Capacity

The 5-minute warm-up primes synovial fluid and gradually elevates heart rate before Step-Ups and Calf Raises demand lower-limb coordination, reducing injury risk in populations with potential peripheral neuropathy. To personalize, track your perceived exertion on Sit to Stand each session — when 10 reps feels like RPE 4, add one rep before progressing load.

25-Minute CKD-Friendly Intermediate Fitness | Mighty Nimble | Mighty Nimble