Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Randomized Experiments

Randomized Experiments

The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Characteristics of fall recurrence among persistent, quasi-persistent, and transient fallers: a 3-year analysis from the SCOPE study.

European geriatric medicine·2026

Same author

Effect of green mediterranean diet on serum folate and its interaction with genetic variation in folate metabolism: The DIRECT PLUS 18-month dietary randomized controlled trial.

Clinical nutrition (Edinburgh, Scotland)·2026

Same author

Lifestyle-Induced Visceral Fat Loss as a Key Target for Durable Cardiometabolic Health: MRI-Assessed 5- and 10-Year Follow-Up After 2 Clinical Trials.

Circulation·2026

Same author

Influence of reactive balance training program characteristics on reactive balance control and fall risk: a systematic review and meta-regression.

Gerontology·2026

Same author

[Discussion paper: Digital falls prevention services for older adults].

Gesundheitswesen (Bundesverband der Arzte des Offentlichen Gesundheitsdienstes (Germany))·2026

Same author

"They're exhausted": Hospice Staff Views on Caring for Patients and Families Impacted By Dementia.

Journal of pain and symptom management·2026

Search research articles

Related Experiment Video

Updated: Jul 28, 2026

Exergaming in Older People Living with HIV Improves Balance, Mobility and Ameliorates Some Aspects of Frailty

Exergaming in Older People Living with HIV Improves Balance, Mobility and Ameliorates Some Aspects of Frailty

Published on: October 6, 2016

Examining Different Motor Learning Paradigms for Improving Balance Recovery Abilities Among Older Adults Random

Hadas Nachmani, Inbal Paran, Moti Salti

|June 16, 2025

Summary

Perturbation-Based Balance Training (PBBT) improved reactive stepping and cognitive function in older adults. However, neither random nor block practice showed superiority for improving balance or voluntary stepping.

More Related Videos

A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance

A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance

Published on: March 19, 2020

Quantitative Static and Dynamic Assessment of Balance Control in Stroke Patients

Quantitative Static and Dynamic Assessment of Balance Control in Stroke Patients

Published on: May 17, 2020

Related Experiment Videos

Last Updated: Jul 28, 2026

Exergaming in Older People Living with HIV Improves Balance, Mobility and Ameliorates Some Aspects of Frailty

Exergaming in Older People Living with HIV Improves Balance, Mobility and Ameliorates Some Aspects of Frailty

Published on: October 6, 2016

A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance

A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance

Published on: March 19, 2020

Quantitative Static and Dynamic Assessment of Balance Control in Stroke Patients

Quantitative Static and Dynamic Assessment of Balance Control in Stroke Patients

Published on: May 17, 2020

Area of Science:

Gerontology
Motor Learning
Rehabilitation Science

Background:

Falls are a significant risk for older adults.
Perturbation-Based Balance Training (PBBT) is effective in reducing fall risk.
Comparing different PBBT motor learning paradigms is crucial for optimizing training.

Purpose of the Study:

To compare the efficacy of random versus block practice in PBBT for older adults.
To investigate the effects of PBBT on reactive and proactive balance.
To assess the impact of PBBT on cognitive performance.

Main Methods:

Twenty community-dwelling older adults were randomized into either a random PBBT group or a block PBBT group.
Both groups underwent eight training sessions over four weeks, including a concurrent cognitive task.
Outcome measures included reactive stepping parameters, voluntary step tests, and cognitive performance, assessed pre- and post-training.

Main Results:

Both PBBT groups demonstrated enhanced reactive stepping and reduced Center of Mass displacement post-training.
No significant improvements were observed in voluntary stepping performance for either group.
Both groups showed improvements in cognitive performance, suggesting a potential transfer effect.

Conclusions:

Both random and block PBBT methods improved reactive stepping and cognitive function in older adults.
Neither training method demonstrated superiority for improving reactive or proactive balance.
Cognitive improvements suggest a training transfer effect, irrespective of the PBBT method; however, results are preliminary due to the small sample size.