Related Experiment Video
Updated: May 11, 2026
04:30
An Experimental Paradigm for Measuring the Effects of Ageing on Sentence Processing
Published on: October 25, 2019
Differences in active commuting among younger and older adults.
Melissa Bopp1, Cheryl Der Ananian, Matthew E Campbell
1Dept. of Kinesiology, Pennsylvania State University, University Park, PA.
Journal of Aging and Physical Activity
|May 22, 2013
Summary
Older adults are less likely to engage in active commuting (AC). Factors like perceived control and walking distance influence older adults
Area of Science:
- Public Health
- Behavioral Science
- Gerontology
Background:
- Active commuting (AC) offers significant health benefits.
- Participation in AC is notably lower among older adults.
- Understanding socioecological factors influencing AC across age groups is crucial.
Purpose of the Study:
- To investigate the socioecological correlates of active commuting (AC) in employed U.S. adults.
- To compare AC participation and its predictors between younger (18-49 years) and older (≥50 years) adults.
Main Methods:
- Online survey administered to employed U.S. adults.
- Participants categorized into younger and older age groups.
- Logistic regression analyses used to identify correlates of AC by age.
Main Results:
- Older adults exhibited significantly lower AC rates (13.4%) compared to younger adults (27.9%).
- For older adults, perceived behavioral control, behavioral beliefs, household car availability, and walking distance were key predictors.
- For younger adults, perceived behavioral control, coworker norms, parking issues, employer/community support, and weather were significant predictors.
Conclusions:
- Age is a critical factor influencing active commuting participation and its determinants.
- Tailored strategies considering age-specific correlates are needed to promote AC in older populations.
- Interventions should address individual, social, and environmental factors differently for younger and older commuters.
Related Concept Videos
01:22Pharmacokinetics 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...
01:18Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism
Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...
01:27Pharmacodynamics in Geriatric Patients: Effects of Age
Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
01:18Pharmacokinetics 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...
01:00Pharmacokinetics 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...
01:09Changes in the Appendicular Skeleton with Age
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...