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Related Concept Videos

Regulation of Stroke Volume01:27

Regulation of Stroke Volume

The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

Cardiac Output II: Effect of Stroke Volume on Cardiac Output

Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...

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Related Experiment Video

Updated: May 20, 2026

Resting-State Connectivity and Neuroimaging of Prefrontal Cortex Activity During a Block-Design Yoga Asana Practice Using fNIRS
07:56

Resting-State Connectivity and Neuroimaging of Prefrontal Cortex Activity During a Block-Design Yoga Asana Practice Using fNIRS

Published on: June 24, 2025

Poststroke balance improves with yoga: a pilot study.

Arlene A Schmid1, Marieke Van Puymbroeck, Peter A Altenburger

  • 1OTR, Roudebush VA Medical Center, 1481 W. 10th Street, 11H, Indianapolis, IN, USA. arlene.schmid@va.gov

Stroke
|July 28, 2012
PubMed
Summary

Modified yoga may improve balance and reduce fear of falling in stroke survivors. This pilot study suggests group yoga is a promising complementary rehabilitation strategy for post-stroke recovery.

Related Experiment Videos

Last Updated: May 20, 2026

Resting-State Connectivity and Neuroimaging of Prefrontal Cortex Activity During a Block-Design Yoga Asana Practice Using fNIRS
07:56

Resting-State Connectivity and Neuroimaging of Prefrontal Cortex Activity During a Block-Design Yoga Asana Practice Using fNIRS

Published on: June 24, 2025

Area of Science:

  • Neurology
  • Rehabilitation Medicine
  • Integrative Medicine

Background:

  • Balance impairment is a frequent challenge for individuals post-stroke.
  • Evidence supporting modified yoga interventions for stroke recovery is needed.
  • Yoga may offer benefits beyond traditional rehabilitation for stroke patients.

Purpose of the Study:

  • To evaluate the impact of a yoga-based rehabilitation program on balance.
  • To assess changes in balance self-efficacy, fear of falling (FoF), and quality of life after stroke.
  • To provide scientific evidence for yoga as a complementary therapy for chronic stroke.

Main Methods:

  • A prospective, randomized pilot study involving individuals with chronic stroke.
  • Participants engaged in twice-weekly, 8-week yoga sessions led by a certified therapist.
  • Assessments included the Berg Balance Scale, Activities-specific Balance Confidence Scale, FoF, and Stroke Specific Quality of Life scale.

Main Results:

  • Within the yoga group, significant improvements were observed in balance (Berg Balance Scale scores).
  • The yoga intervention led to a significant reduction in fear of falling (FoF).
  • No significant differences were found between the yoga and wait-list control groups in overall scores.

Conclusions:

  • Group yoga-based rehabilitation shows potential for enhancing multiple post-stroke variables.
  • Yoga may serve as a cost-effective, complementary therapy in various healthcare settings.
  • Further research is warranted to confirm the benefits of group yoga interventions for stroke survivors.