Related Experiment Video
Updated: May 3, 2026
08:39
A Murine Model of Hemodialysis Access-Related Hand Dysfunction
Published on: May 31, 2022
1.8K
Aerobic exercise increases phosphate removal during hemodialysis: a controlled trial
Rafael Orcy1, Maria Fernanda Antunes, Tamires Schiller
1School of Physiotherapy, Universidade Católica de Pelotas, Pelotas, Brazil; School of Medicine, Universidade Federal de Pelotas, Pelotas, Brazil.
Hemodialysis International. International Symposium on Home Hemodialysis
|January 21, 2014
Summary
Exercise during hemodialysis (HD) significantly enhances phosphate removal. However, this aerobic activity did not alter the removal of urea, creatinine, or potassium during the treatment sessions.
Area of Science:
- Nephrology
- Exercise Physiology
- Clinical Trials
Background:
- Previous studies suggest exercise during hemodialysis (HD) may improve solute removal efficacy.
- The hypothesis requires conclusive evaluation through controlled clinical trials.
Purpose of the Study:
- To compare the removal of low-molecular weight solutes during HD sessions with and without aerobic exercise.
- To determine the impact of exercise on urea, potassium, creatinine, and phosphate removal.
Main Methods:
- A controlled clinical trial with a randomized cross-over design was conducted.
- Patients underwent paired HD sessions: one with a 60-minute cycle ergometer exercise, and one without.
- Solute removal was quantified by analyzing dialysate concentrations via continuous spent sampling.
Main Results:
- Phosphate removal was significantly higher during HD sessions with exercise compared to control sessions (P=0.04).
- Aerobic exercise did not significantly alter the removal of urea (P=0.44), creatinine (P=0.49), or potassium (P=0.49).
- Median phosphate removal was 1348.6 mg/session with exercise versus 1226 mg/session without.
Conclusions:
- Aerobic exercise during hemodialysis effectively increases phosphate removal efficacy.
- Exercise during HD does not impact the removal of urea, creatinine, or potassium.
- Further clinical trials are needed to assess the implications for mineral and bone disease and cardiovascular disease.
Related Concept Videos
01:30Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis
1.1K
Patients with end-stage renal disease (ESRD) or those experiencing drug overdose often require extracorporeal methods to eliminate accumulated drugs and metabolites. Hemoperfusion, hemofiltration, and dialysis are the primary techniques to rapidly remove harmful substances without disrupting the patient's fluid and electrolyte balance. For those with compromised renal function, dosage adjustments of concurrent medications may be necessary during extracorporeal drug removal.Dialysis is a process...
1.1K
01:25Extracorporeal Removal of Drugs: Hemoperfusion and Hemofiltration
377
Hemoperfusion and hemofiltration are critical techniques in medical treatments to eliminate accumulated drugs, metabolites, and electrolytes from the bloodstream. These methods are particularly vital in cases of accidental poisoning and drug overdose.Hemoperfusion involves passing blood through an adsorbent material to remove unwanted substances. The main adsorbents used in hemoperfusion include activated charcoal and Amberlite resins. Activated charcoal can adsorb both polar and nonpolar...
377
01:25Hemodialysis I: Introduction
4.0K
Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
4.0K
01:24Hemodialysis II: Procedure and Complications
2.2K
DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
2.2K
01:25Hemodialysis III: Nursing Management
1.8K
The nursing management of a patient undergoing hemodialysis includes several critical steps, starting with a thorough assessment before the procedure.Before the Hemodialysis ProcedureFirst, record the patient's vital signs—blood pressure, heart rate, respiratory rate, and temperature—to establish a baseline. This baseline is essential for detecting conditions such as hypotension that could impact the patient's response to dialysis. Document the patient's pre-dialysis weight, as this...
1.8K
01:26Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy
414
Continuous Renal Replacement Therapy (CRRT) is an essential intervention for patients experiencing severe kidney dysfunction. This therapy offers a continuous mechanism for removing fluids and toxins from the bloodstream, leveraging the patient’s blood pressure to facilitate filtration through a specialized filter. This method contrasts with intermittent dialysis, providing a gentler and more consistent removal of waste products and excess fluid, which is particularly beneficial in...
414