Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Competition02:34

Competition

When organisms require the same limited resources within an environment, they may have to compete for them. Competition is a net-negative interaction. Even if two competing individuals or populations do not interact directly, the overall fitness of both competitors is lowered as a result of not having full access to the limited resource.Intraspecific competition, which occurs between individuals of the same species, serves as a natural mechanism for regulating population size. Too much...
Metabolic States of the Body: Fasting and Starvation01:24

Metabolic States of the Body: Fasting and Starvation

During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...
Metabolic States of the Body: The Postabsorptive State01:18

Metabolic States of the Body: The Postabsorptive State

The postabsorptive state usually starts about four hours after a meal and lasts until the next meal is eaten. During this time, the digestive system stops absorbing nutrients, and the body uses stored energy reserves to maintain stable blood glucose levels.
Initially, glycogen stored in the liver is broken down to release glucose into the bloodstream, while glycogen in the muscles is broken down to supply glucose for energy directly within the muscle cells. As glycogen stores diminish,...
Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Exercise and Muscle Performance01:27

Exercise and Muscle Performance

Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Binge Eating Disorders01:23

Binge Eating Disorders

Binge eating disorder is a significant mental health condition characterized by recurrent episodes of excessive food consumption within a short period, accompanied by a perceived loss of control over eating behavior. Unlike occasional overeating, binge eating disorder is marked by distressing emotions such as guilt, shame, and anxiety following binge episodes. The disorder affects individuals across different ages and backgrounds, with profound implications for physical and psychological...

You might also read

Related Articles

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

Sort by
Same author

Navigating Moral Distress and Moral Injury in Military Veterans: Clinical Implications for Nursing Practice.

Issues in mental health nursing·2026
Same author

Epidemiological insights into the burden of feline upper respiratory tract infections in Queensland RSPCA shelters.

Australian veterinary journal·2023
Same author

Current evidence for non-pharmaceutical, non-surgical treatments of canine osteoarthritis.

The Journal of small animal practice·2023
Same author

The impact of COVID-19 public health measures on attendance and overdose at supervised injecting facilities in Australia.

Public health·2023
Same author

An update on mobility assessment of dogs with musculoskeletal disease.

The Journal of small animal practice·2023
Same author

Management of vagus nerve stimulation therapy in the peri-operative period: Guidelines from the Association of Anaesthetists: Guidelines from the Association of Anaesthetists.

Anaesthesia·2023
Same journal

Injury surveillance during the 2024 under-20's Men's European Field Lacrosse Championships.

The Physician and sportsmedicine·2026
Same journal

Understanding health insurance and the delay in care for partial meniscectomies: a comparison between public and private coverage.

The Physician and sportsmedicine·2026
Same journal

Injury incidence and risk factors in youth American football versus soccer: a national emergency department analysis.

The Physician and sportsmedicine·2026
Same journal

Links between concussion history, hypertension, and hypertension contributing factors among adolescent football athletes.

The Physician and sportsmedicine·2026
Same journal

Core muscle endurance and balance as predictors of lateral ankle sprain in adolescent team-sport athletes: a prospective cohort study.

The Physician and sportsmedicine·2026
Same journal

Impact of Achilles tendon rupture on performance and career outcomes in NFL players: a matched cohort study.

The Physician and sportsmedicine·2026
See all related articles

Related Experiment Video

Updated: Jun 16, 2026

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli
15:00

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Published on: August 18, 2023

Eating before competing.

N Clark1

  • 1Nutrition Services, Sports Medicine Associates, Brookline, MA, 02467-2594, USA.

The Physician and Sportsmedicine
|January 21, 2010
PubMed
Summary
This summary is machine-generated.

Many athletes avoid food before exercise, while others question pre-exercise snacks. This study explores optimal pre-exercise nutrition strategies for athletes to enhance performance and reduce anxiety.

More Related Videos

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method
06:21

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method

Published on: February 19, 2021

Related Experiment Videos

Last Updated: Jun 16, 2026

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli
15:00

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Published on: August 18, 2023

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method
06:21

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method

Published on: February 19, 2021

Area of Science:

  • Sports Nutrition
  • Exercise Physiology
  • Nutritional Science

Background:

  • Common belief among athletes is to avoid food before exercise.
  • Uncertainty exists regarding pre-exercise snacking, such as energy bars.
  • Pre-exercise anxiety related to food intake is also reported.

Purpose of the Study:

  • To investigate the effects of pre-exercise nutrition on athletic performance.
  • To determine optimal timing and composition of pre-exercise meals and snacks.
  • To address athlete concerns regarding pre-exercise food intake and associated anxiety.

Main Methods:

  • Review of existing literature on sports nutrition and pre-exercise fueling.
  • Analysis of studies examining the impact of different macronutrient intakes before exercise.
  • Examination of psychological factors influencing pre-exercise eating behaviors.

Main Results:

  • Evidence suggests that pre-exercise carbohydrate intake can enhance endurance and high-intensity performance.
  • The optimal timing for pre-exercise meals is typically 1-4 hours before activity.
  • Snacking on easily digestible carbohydrates shortly before exercise may benefit some athletes.

Conclusions:

  • Strategic pre-exercise nutrition is crucial for optimizing athletic performance.
  • Athletes should personalize their pre-exercise fueling strategies based on individual tolerance and event demands.
  • Further research is needed to fully understand the interplay between nutrition, performance, and pre-exercise anxiety.