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 Muscle Performance01:27

Exercise and Muscle Performance

2.8K
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...
2.8K
Isotonic and Isometric Muscle Contractions01:22

Isotonic and Isometric Muscle Contractions

7.8K
Two primary types of muscle contractions are isotonic and isometric, each serving unique functions and involving distinct mechanisms. Both isotonic and isometric contractions are integral to the body's complex system of movement and stability. Isotonic exercises contribute significantly to functional strength and movement, while isometric contractions are crucial for maintaining posture and joint stability.
Isotonic contractions
Isotonic contractions occur when a muscle changes length while...
7.8K
Exercise Stress Test01:26

Exercise Stress Test

1.5K
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
1.5K
Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

4.7K
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...
4.7K
Relaxation of Skeletal Muscles01:29

Relaxation of Skeletal Muscles

6.2K
The period of muscle contraction primarily influences the duration of stimulation at the neuromuscular junction (NMJ), the presence of free calcium ions in the sarcoplasm, and the availability of energy or ATP to support contractions.
When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated sodium channels. Sodium ions enter the cell, further depolarizing the presynaptic membrane. This depolarization causes voltage-gated calcium channels to open....
6.2K

You might also read

Related Articles

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

Sort by
Same author

Defining a ketone threshold for weight loss: evidence from 14 day daily β-hydroxybutyrate monitoring in 217 subjects on a ketogenic diet.

Nutrition & diabetes·2026
Same author

Athletic performance levels across biological maturity status in youth soccer players.

Frontiers in sports and active living·2026
Same author

Multimodal Integration of Gait, Balance, and Infrared Thermography Enhances Machine-Learning Classification of Knee Osteoarthritis: A Cross-Sectional Study.

Archives of physical medicine and rehabilitation·2026
Same author

Acute non-local effects on range of motion and drop jumping performance following static stretching of the knee extensors and knee flexors.

Journal of bodywork and movement therapies·2026
Same author

Aging Remodels Mitochondrial Architecture Across the Male Reproductive Axis.

Research square·2026
Same author

Acute Effects of Plantar Proprioceptive Training on Dynamic Balance and Ankle Range of Motion: A Pilot Randomized Controlled Trial.

Sports (Basel, Switzerland)·2026

Related Experiment Video

Updated: Feb 24, 2026

Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test
06:00

Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test

Published on: July 27, 2015

13.2K

Heavy vs Light Load Single-Joint Exercise Performance with Different Rest Intervals.

Gilmar Weber Senna1,2,3, Bernardo Minelli Rodrigues2,3, Daniel Sandy2

  • 1Nursing and Biosciences Post-Graduation Program (PPgEnfBio) - Doctorate of Federal University of State of Rio de Janeiro (UNIRIO)RJ - Brazil.

Journal of Human Kinetics
|August 23, 2017
PubMed
Summary

Rest period length significantly impacts upper body exercise volume. Shorter rests reduce total repetitions, while longer rests (3-5 minutes) benefit heavier loads (80% of one-rep max) for better recovery and volume. Lighter loads (50% of one-rep max) are more sensitive to rest duration.

Keywords:
health promotionmuscular strengthphysical fitnessweight lifting

More Related Videos

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

13.3K
Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
07:30

Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations

Published on: May 1, 2018

16.0K

Related Experiment Videos

Last Updated: Feb 24, 2026

Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test
06:00

Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test

Published on: July 27, 2015

13.2K
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

13.3K
Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
07:30

Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations

Published on: May 1, 2018

16.0K

Area of Science:

  • Exercise Physiology
  • Sports Science
  • Biomechanics

Background:

  • Optimizing training volume is crucial for achieving strength and hypertrophy adaptations.
  • Rest interval duration between sets is a key variable influencing acute training responses.
  • Understanding the interplay between exercise intensity, volume, and rest is essential for effective training programming.

Purpose of the Study:

  • To compare the effects of three distinct rest period lengths (1, 3, and 5 minutes) on upper body single-joint exercise performance.
  • To investigate how different load zones (50% and 80% of one-rep max) interact with rest periods to influence total repetitions and volume.
  • To determine optimal rest strategies for endurance and hypertrophy-focused training.

Main Methods:

  • Sixteen resistance-trained men participated in the study.
  • Participants underwent one-rep max (1-RM) testing for upper body single-joint exercises.
  • Subjects performed four sets of triceps pull-downs at either 50% or 80% of 1-RM with randomized rest periods of 1, 3, or 5 minutes between sets.

Main Results:

  • A 1-minute rest period significantly reduced total repetitions compared to a 3-minute rest for both 50% and 80% of 1-RM loads.
  • A significant difference in performance was observed between 3 and 5-minute rest conditions at 50% of 1-RM, but not at 80% of 1-RM.
  • Both intensities showed significant interactions for rest conditions versus sets, and main effects for subsequent set performance and rest conditions.

Conclusions:

  • For heavier loads (80% 1-RM), longer rest periods of 3-5 minutes facilitate better recovery and promote greater training volume.
  • For lighter loads (50% 1-RM), rest period duration directly influences subsequent set performance and overall achieved volume.
  • Tailoring rest intervals to specific training intensities is crucial for maximizing exercise outcomes in single-joint upper body movements.