NDLI: On the mechanical power of joint extensions as affected by the change in muscle force (or cross-sectional area), ceteris paribus

Content Provider	Springer Nature Link
Author	Minetti, Alberto E.
Copyright Year	2002
Abstract	This paper offers a reference prediction for the changes of mechanical power generated during a maximal (vertical, horizontal or inclined) joint extension, as a consequence of just the changes of muscle force or cross-sectional area (CSA). Ceteris paribus (all other things being equal), for a given joint, the exponents at which the force changes have to be raised to predict the duration, final speed and power of the maximal extension are –0.5, 0.5, and 1.5, respectively, for horizontal movements. For example, a force decrease of 30% leads to an increase of 19.5% of the duration of the extension and to a decrease of 16.3% and of 41.4% of its final speed and power. The equations for vertical or inclined extension performances are subject to the same exponents. However, the actual prediction is dependent upon the ratio between muscle strength and body weight, reflecting the fraction of the muscle strength (or CSA) acting against gravity during the manoeuvre. For instance, during a vertical extension, a force decrease of 30% leads to an increase of 30.9% of the duration of the extension and to a decrease of 29.3% and of 50.5% of its final speed and power. Based on the proposed model, a methodology is also described to detect the effects on the extension power of other determinants, in addition to CSA, of the useful force change (e.g. neuromuscular factors, motor control).
Starting Page	363
Ending Page	369
Page Count	7
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	86
Issue Number	4
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2014-04-12
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human Physiology Occupational Medicine/Industrial Medicine Sports Medicine
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Correlation between single-slice muscle anatomical cross-sectional area and muscle volume in thigh extensors, flexors and adductors of perimenopausal women

Low-load resistance training promotes muscular adaptation regardless of vascular occlusion, load, or volume

Effect of countermovement on power–force–velocity profile

Neural and muscular changes to detraining after electrostimulation training

Cross-sectional area of psoas major muscle and hip flexion strength in youth soccer players

Early resistance training-induced increases in muscle cross-sectional area are concomitant with edema-induced muscle swelling

Panoramic ultrasonography is a valid method to measure changes in skeletal muscle cross-sectional area

The validity of estimating quadriceps volume from single MRI cross-sections in young men

Effects of resistance training combined with vascular occlusion or hypoxia on neuromuscular function in athletes

On the mechanical power of joint extensions as affected by the change in muscle force (or cross-sectional area), ceteris paribus

Similar Documents

Correlation between single-slice muscle anatomical cross-sectional area and muscle volume in thigh extensors, flexors and adductors of perimenopausal women

Low-load resistance training promotes muscular adaptation regardless of vascular occlusion, load, or volume

Effect of countermovement on power–force–velocity profile

Neural and muscular changes to detraining after electrostimulation training

Cross-sectional area of psoas major muscle and hip flexion strength in youth soccer players

Early resistance training-induced increases in muscle cross-sectional area are concomitant with edema-induced muscle swelling

Panoramic ultrasonography is a valid method to measure changes in skeletal muscle cross-sectional area

The validity of estimating quadriceps volume from single MRI cross-sections in young men

Effects of resistance training combined with vascular occlusion or hypoxia on neuromuscular function in athletes

On the mechanical power of joint extensions as affected by the change in muscle force (or cross-sectional area), ceteris paribus