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Related Concept Videos

The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are not...
Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption01:22

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...
Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
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...

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Related Experiment Video

Updated: Jun 28, 2026

Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
12:59

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

Published on: July 5, 2017

Nutritional consideration in the aging athlete.

Mark A Tarnopolsky1

  • 1Department of Pediatrics, Faculty of Health Science, McMaster University, Hamilton, Ontario, Canada. tarnopol@mcmaster.ca

Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine
|November 13, 2008
PubMed
Summary
This summary is machine-generated.

Older athletes need slightly more protein (0.8 g/kg/d) for muscle strength and fat-free mass gains. Creatine supplementation also aids strength, while adequate carbohydrates are crucial for endurance, with early recovery nutrition beneficial.

Related Experiment Videos

Last Updated: Jun 28, 2026

Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
12:59

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

Published on: July 5, 2017

Area of Science:

  • Sports Nutrition
  • Geriatric Athletics
  • Exercise Physiology

Background:

  • Older adult athletes have unique nutritional needs for optimal performance and recovery.
  • Evidence-based dietary recommendations are crucial for this demographic.

Purpose of the Study:

  • To review and synthesize the current evidence for dietary recommendations specifically for older adult athletes.
  • To identify gaps in research regarding nutritional strategies for aging athletes.

Main Methods:

  • An interpretive review of existing scientific literature was conducted.
  • The review focused on studies related to resistance and endurance exercise in older adults.

Main Results:

  • For resistance training, protein intake slightly above 0.8 g/kg/d optimizes muscle strength gains.
  • Creatine monohydrate supplementation (approx. 5 g/d) can enhance strength and fat-free mass.
  • Adequate carbohydrate intake (6-8 g/kg/d) is recommended for endurance training.

Conclusions:

  • Dietary protein amount and timing are key for maximizing strength and muscle mass in older athletes.
  • Creatine supplementation can potentiate training adaptations in the initial months.
  • Older athletes should follow general sports nutrition guidelines for hydration and carbohydrate replacement, similar to younger athletes.