NDLI: Time course of changes in the human Achilles tendon properties and metabolism during training and detraining in vivo

Content Provider	Springer Nature Link
Author	Kubo, Keitaro Ikebukuro, Toshihiro Maki, Akira Yata, Hideaki Tsuda, Naoya
Copyright Year	2011
Abstract	The purpose of this study was to investigate the time course of changes in human tendon properties and metabolism during resistance training and detraining. Nine men (21–27 years) completed 3 months of isometric plantar flexion training and another 3 months of detraining. At the beginning and on every 1 month of training and detraining periods, the stiffness, blood circulation (blood volume and oxygen saturation), serum procollagen type 1 C-peptide (P1P; reflects synthesis of type 1 collagen), echointensity (reflects collagen content), and MRI signal intensity (reflects collagen structure) of the Achilles tendon were measured. Tendon stiffness did not change until 2 months of training, and the increase (50.3%) reached statistical significance at the end of the training period. After 1 month of detraining, tendon stiffness had already decreased to pre-training level. Blood circulation in the tendon did not change during the experimental period. P1P increased significantly after 2 months of training. Echointensity increased significantly by 9.1% after 2 months of training, and remained high throughout the experiment. MRI signal intensity increased by 24.2% after 2 months and by 21.4% after 3 months of training, but decreased to the pre-training level during the detraining period. These results suggested that the collagen synthesis, content, and structure of human tendons changed at the 2-month point of training period. During detraining, the sudden decrease in tendon stiffness might be related to changes in the structure of collagen fibers within the tendon.
Starting Page	2679
Ending Page	2691
Page Count	13
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	112
Issue Number	7
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-11-22
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plantar flexor Tendon stiffness Collagen synthesis Structure Sports Medicine Occupational Medicine/Industrial Medicine Human Physiology
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

Changes in oxygen consumption of human muscle and tendon following repeat muscle contractions

Effects of plyometric training on passive stiffness of gastrocnemii muscles and Achilles tendon

Effects of different duration contractions on elasticity, blood volume, and oxygen saturation of human tendon in vivo

Effects of mechanical properties of muscle and tendon on performance in long distance runners

Exercise-induced changes in triceps surae tendon stiffness and muscle strength affect running economy in humans

Relationship between elastic properties of tendon structures and performance in long distance runners

Effects of acupuncture and heating on blood volume and oxygen saturation of human Achilles tendon in vivo

Effects of plyometric training on both active and passive parts of the plantarflexors series elastic component stiffness of muscle–tendon complex

Influences of tendon stiffness, joint stiffness, and electromyographic activity on jump performances using single joint

Time course of changes in the human Achilles tendon properties and metabolism during training and detraining in vivo

Similar Documents

Changes in oxygen consumption of human muscle and tendon following repeat muscle contractions

Effects of plyometric training on passive stiffness of gastrocnemii muscles and Achilles tendon

Effects of different duration contractions on elasticity, blood volume, and oxygen saturation of human tendon in vivo

Effects of mechanical properties of muscle and tendon on performance in long distance runners

Exercise-induced changes in triceps surae tendon stiffness and muscle strength affect running economy in humans

Relationship between elastic properties of tendon structures and performance in long distance runners

Effects of acupuncture and heating on blood volume and oxygen saturation of human Achilles tendon in vivo

Effects of plyometric training on both active and passive parts of the plantarflexors series elastic component stiffness of muscle–tendon complex

Influences of tendon stiffness, joint stiffness, and electromyographic activity on jump performances using single joint

Time course of changes in the human Achilles tendon properties and metabolism during training and detraining in vivo