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

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 Cardiac Output01:17

Exercise and Cardiac Output

Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be met...
Vitamins01:30

Vitamins

Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced in our...
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...
Muscle Recovery and Fatigue01:24

Muscle Recovery and Fatigue

Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective response...
Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...

You might also read

Related Articles

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

Sort by
Same author

Beyond Belief? Absence of Double-Blinding and Limited Ecological Validity in Carbohydrate Loading Research.

International journal of sport nutrition and exercise metabolismยท2026
Same author

From Intention to Execution: Pre-Race Nutrition Behaviours, Influences, and Performance Outcomes in Female Endurance Athletes at the IRONMAN World Championships.

European journal of sport scienceยท2026
Same author

Dietary Intake of Endurance Athletes During 12 Weeks of Self-Selected Training: An Observational Study.

International journal of sport nutrition and exercise metabolismยท2026
Same author

The Role of Maximal-, Explosive-, and Reactive-Strength on the Magnitude of Adaptation to Sprint Training in Elite Female Gaelic Football.

Journal of strength and conditioning researchยท2026
Same author

Sport-related trauma and motor neurone disease: a scoping review of epidemiology, mechanisms and future directions.

British journal of sports medicineยท2026
Same author

Ketone monoester reduces blood glucose, exogenous CHO oxidation, and oxidation efficiency in trained male cyclists when fed 120 g/h of CHO during exercise.

Journal of applied physiology (Bethesda, Md. : 1985)ยท2026

Related Experiment Video

Updated: Jun 2, 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

Vitamin C consumption does not impair training-induced improvements in exercise performance.

Llion A Roberts1, Kris Beattie, Graeme L Close

  • 1Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom.

International Journal of Sports Physiology and Performance
|April 14, 2011
PubMed
Summary

Daily vitamin C supplementation does not hinder exercise performance gains from high-intensity interval training. Antioxidants did not affect improvements in VO2max, time trials, or running economy in recreationally active males.

More Related Videos

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
07:40

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training

Published on: October 10, 2019

Related Experiment Videos

Last Updated: Jun 2, 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

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
07:40

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training

Published on: October 10, 2019

Area of Science:

  • Exercise Physiology
  • Nutritional Biochemistry
  • Sports Science

Background:

  • High-intensity interval training (HIIT) enhances exercise performance.
  • Antioxidants are hypothesized to interfere with training adaptations.
  • The role of vitamin C in HIIT adaptation requires investigation.

Purpose of the Study:

  • To determine if vitamin C supplementation attenuates HIIT-induced improvements in exercise performance.
  • To investigate the effects of vitamin C on VO2max, time trial performance, running economy, and intermittent recovery capacity.

Main Methods:

  • Recreationally active males underwent a 4-week HIIT running protocol.
  • One group received 1g daily vitamin C; the other received a placebo.
  • Performance metrics (VO2max, 10km time trial, running economy, YoYo intermittent recovery tests) and substrate oxidation rates were assessed pre- and post-training.

Main Results:

  • Both groups showed significant improvements in VO2max, 10km time trial, running economy, and YoYo intermittent recovery tests.
  • No significant differences in the magnitude of training adaptations were observed between the vitamin C and placebo groups.
  • Submaximal exercise revealed decreased carbohydrate and increased fat oxidation in both groups, with no intergroup differences.

Conclusions:

  • Daily oral vitamin C supplementation (1g) does not impair HIIT-induced improvements in exercise performance.
  • Vitamin C does not negatively affect key physiological adaptations to high-intensity interval training in males.
  • This study suggests that vitamin C is safe to consume during HIIT programs for performance enhancement.