Related Experiment Video
Updated: Jul 20, 2026
08:55
Determining and Controlling External Power Output During Regular Handrim Wheelchair Propulsion
Published on: February 5, 2020
Techniques and considerations for determining isoinertial upper-body power.
Michael J Falvo1, Brian K Schilling, Lawrence W Weiss
1Exercise Neuromechanics Laboratory, Department of Health and Sport Sciences, The University of Memphis, TN 38152, USA.
Sports Biomechanics
|August 31, 2006
Summary
Assessing upper body power using isoinertial methods is crucial for athletes. However, current research shows limited reliability and validity in predicting athletic performance, highlighting a need for further investigation.
Area of Science:
- Sports Science
- Biomechanics
- Exercise Physiology
Background:
- Lower body power is frequently assessed, but upper body power remains understudied in sports.
- Isoinertial methods for power testing are increasingly common but lack established reliability and validity for upper body movements.
- Varied methodologies complicate the understanding and application of upper body power assessments.
Purpose of the Study:
- To review methods for assessing upper body power.
- To determine the role of upper body power in athletic performance prediction.
- To evaluate the existing literature on isoinertial upper body power testing.
Main Methods:
- Literature review of studies assessing upper body power, particularly using isoinertial methods.
- Analysis of the correlation between upper body power measurements and athletic performance indicators.
- Examination of the reliability and criterion validity of isoinertial upper body power tests.
Main Results:
- Only two studies demonstrate a direct correlation between isoinertial upper body power and sporting ability.
- Significant gaps exist in the literature regarding the efficacy of these tests for performance prediction and training monitoring.
- The utility of isoinertial upper body power tests for coaches requires further evaluation regarding availability, safety, and external validity.
Conclusions:
- More research is needed to establish the reliability and validity of isoinertial upper body power tests.
- Current evidence is insufficient to recommend these tests for predicting athletic ability or monitoring training.
- Coaches should cautiously consider the practical application of these tests based on limited scientific support.
More Related Videos
07:44Construction of Constant-Load (Isotonic) and Constant-Velocity (Isokinetic) Torque-Velocity-Power Profiles In vivo for the Rat Plantar Flexors
Published on: October 3, 2025
08:08Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis
Published on: May 8, 2014
Related Concept Videos
01:23Moments and Product of Inertia
The calculation of the moment of inertia for a differential element within a rigid body involves multiplying the element's mass by the square of the minimum distance from any one of the three-coordinate axes to the said element. This is a process that can be extended to cover the entire mass of the body by simply integrating the expression, thereby ascertaining the body's moment of inertia.
01:22Isotonic and Isometric Muscle Contractions
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 the...
Isotonic contractions
Isotonic contractions occur when a muscle changes length while the...
01:09Angular Momentum and Principle Axes of Inertia
The concept of angular momentum for a solid structure is illustrated as the cumulative result of the cross-product of the position vector of the mass element and the cross-product of the body's angular velocity with the position vector.
To put this equation into simpler terms, it can be reconfigured using rectangular coordinates. This involves choosing an alternative set of XYZ axes that are arbitrarily inclined with respect to the reference frame. The process of deriving the rectangular...
To put this equation into simpler terms, it can be reconfigured using rectangular coordinates. This involves choosing an alternative set of XYZ axes that are arbitrarily inclined with respect to the reference frame. The process of deriving the rectangular...
01:13Kinetic Energy for a Rigid Body
Imagine a solid object involved in a general planar movement, with its center of mass pinpointed at a spot labeled G. The object's kinetic energy relative to an arbitrary point A can be quantified for each of its particles - the ith particle in this case. This measurement is achieved through the employment of the relative velocity definition. The position vector, known as rA, extends from point A to the mass element i.
00:57Power Expended by a Constant Force
The relationship between work done and the time taken to do it can be explained using the concept of power. For example, several sprinters in a race may have the same velocity when they reach the finish line, therefore doing the same amount of work, but the winner does it in the least amount of time. Thus, power is defined as the rate of doing work. Since work can vary as a function of time, the average power is defined as the work done during a time interval, divided by the time interval.
01:13Product of Inertia for an Area
Mechanical engineering involves making use of correct calculations to ensure that machines and structures are sturdy and long-lasting. One such calculation is the product of inertia for an area. It is a measure of how the mass of a structure is distributed around its centroid. It determines the structure's ability to resist rotational forces and affects the magnitude and direction of the stresses it experiences when subjected to external forces.
To calculate the product of inertia for any...
To calculate the product of inertia for any...