Related Experiment Video

Updated: Nov 30, 2025

Glycemic Impact on Knee Osteoarthritis Symptoms on Physical, Radiographic, and Inflammatory Markers among Individuals Aged 50 and Over with Diabetes
07:22

Glycemic Impact on Knee Osteoarthritis Symptoms on Physical, Radiographic, and Inflammatory Markers among Individuals Aged 50 and Over with Diabetes

Published on: March 7, 2025

552

In older adults with CKD and mild acidosis, oral sodium bicarbonate did not improve physical function

Orly F Kohn1

  • 1The University of Chicago, Chicago, Illinois, USA (O.F.K.).

Annals of Internal Medicine
|November 16, 2020
PubMed

Insights

This study investigated if sodium bicarbonate supplements improve physical function in older adults with advanced chronic kidney disease. Results showed no significant benefit for physical function in this patient group.

Area of Science:

  • Nephrology
  • Geriatrics
  • Clinical Trials

Background:

  • Advanced chronic kidney disease (CKD) significantly impairs physical function in older adults.
  • Metabolic acidosis is common in CKD and may contribute to physical decline.
  • Sodium bicarbonate supplementation is a potential intervention to address metabolic acidosis.

Purpose of the Study:

  • To determine if sodium bicarbonate improves physical function in patients over 60 with advanced CKD.
  • To assess the efficacy of sodium bicarbonate in enhancing physical capacity in this population.

Main Methods:

  • A randomized controlled trial (RCT) was conducted.
  • Participants were patients over 60 years old with advanced chronic kidney disease.
  • The study compared sodium bicarbonate supplementation against a placebo.

Main Results:

  • Sodium bicarbonate did not lead to a significant improvement in physical function.
  • Key measures of physical performance remained unchanged between groups.
  • No significant differences were observed in secondary outcomes related to physical function.

Conclusions:

  • Sodium bicarbonate supplementation is not effective for improving physical function in older adults with advanced chronic kidney disease.
  • Further research may be needed to explore alternative interventions for physical decline in this population.
Abstract

More Related Videos

Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People12:59

Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People

Published on: July 5, 2017

12.9K
5/6th Nephrectomy in Combination with High Salt Diet and Nitric Oxide Synthase Inhibition to Induce Chronic Kidney Disease in the Lewis Rat08:50

5/6th Nephrectomy in Combination with High Salt Diet and Nitric Oxide Synthase Inhibition to Induce Chronic Kidney Disease in the Lewis Rat

Published on: July 3, 2013

24.1K

Related Concept Videos

Bicarbonate-Carbonic Acid Buffer01:22

Bicarbonate-Carbonic Acid Buffer

The carbonic acid-bicarbonate buffer system is critical for maintaining the body's pH balance. It operates on the equilibrium:
4.6K
Renal Regulation of Acid-Base Balance01:29

Renal Regulation of Acid-Base Balance

Metabolic reactions in the body produce nonvolatile acids, such as sulfuric acid, which generate an acid load of approximately 1 mEq of H+ per kilogram of body weight daily. Excreting H+ in the urine is essential to balance this acid load.
In the kidneys, cells within the proximal convoluted tubules (PCT) and the collecting ducts secrete hydrogen ions (H+) into the tubular fluid. Specifically, in the PCT, Na+/H+ antiporters secrete H+ while reabsorbing Na+.
However, the intercalated cells in...
1.3K
Acid Suppressive Drugs for Peptic Ulcer Disease: Antacids01:31

Acid Suppressive Drugs for Peptic Ulcer Disease: Antacids

In the complex environment of the gastric lumen, excessive acid secretion can lead to the formation or worsening of ulcers within the delicate mucosal layer. Antacids, such as sodium bicarbonate and calcium carbonate, provide relief by neutralizing this acid, transforming it into harmless salt and water. This neutralization process raises the gastric pH from a highly acidic level of 1 to a more basic 3-4, reducing the acidity within the stomach.
However, this neutralization reaction between...
525
Diagnosing Acidosis and Alkalosis01:24

Diagnosing Acidosis and Alkalosis

Diagnosing acid-base imbalances involves systematically analyzing arterial blood samples, focusing on three key measurements: pH, bicarbonate (HCO3−) concentration, and carbon dioxide partial pressure (PCO2). This analysis follows a four-step process that helps identify the imbalance's underlying cause and nature.
First, the pH level is assessed to determine whether the blood pH is normal (7.35–7.45), low (acidosis), or high (alkalosis).
Next, the PCO2  and...
833
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
154
Disorders of Acid-Base Balance01:29

Disorders of Acid-Base Balance

The human body maintains a precise pH range of arterial blood between 7.35 and 7.45. Deviations result in either acidosis (pH < 7.35) or alkalosis (pH > 7.45). These conditions are further classified as respiratory or metabolic disorders based on their underlying cause.
Respiratory Acidosis and Alkalosis
Respiratory acidosis occurs due to an increase in the partial pressure of carbon dioxide PCO2 in the blood. It often arises from shallow breathing or impaired gas exchange caused by...
1.6K