NDLI: The effects of different stretch amplitudes on electromyographic activity during drop jumps.

Please wait, while we are loading the content...

Year: 2017 Volume: 31

Year: 2016 Volume: 30

Year: 2015 Volume: 29

Year: 2014 Volume: 28

Year: 2013 Volume: 27

Year: 2012 Volume: 26

Year: 2011 Volume: 25

Year: 2010 Volume: 24

Year: 2009 Volume: 23

Year: 2008 Volume: 22

Year: 2008 Volume: 22 Issue: 6

Year: 2008 Volume: 22 Issue: 5

Year: 2008 Volume: 22 Issue: 4

Year: 2008 Volume: 22 Issue: 3

Year: 2008 Volume: 22 Issue: 2

Year: 2008 Volume: 22 Issue: 1

Ultrafine and fine particulate matter inhalation decreases exercise performance in healthy subjects.

The National Football League Combine: performance differences between drafted and nondrafted players entering the 2004 and 2005 drafts.

Static stretching impairs sprint performance in collegiate track and field athletes.

Relationships between stretch-shortening cycle performance and maximum muscle strength.

Sprint and vertical jump performances are not affected by six weeks of static hamstring stretching.

The effects of different stretch amplitudes on electromyographic activity during drop jumps.

The duration of the inhibitory effects with static stretching on quadriceps peak torque production.

Comparing short-term complex and compound training programs on vertical jump height and power output.

Comparison of weighted jump squat training with and without eccentric braking.

Effects of pre-exposure to hyperbaric hyperoxia on high-intensity exercise performance.

Strength outcomes in fixed versus free-form resistance equipment.

Establishing a new index of muscle cross-sectional area and its relationship with isometric muscle strength.

No difference in 1RM strength and muscle activation during the barbell chest press on a stable and unstable surface.

Trunk muscle activity during stability ball and free weight exercises.

Self-selected resistance training intensity in healthy women: the influence of a personal trainer.

Comparison of trunk kinematics in trunk training exercises and throwing.

Comparison of early phase adaptations for traditional strength and endurance, and low velocity resistance training programs in college-aged women.

Muscle force per cross-sectional area is inversely related with pennation angle in strength trained athletes.

The effects of combined ballistic and heavy resistance training on maximal lower- and upper-body strength in recreationally trained men.

Effects of a shoulder injury prevention strength training program on eccentric external rotator muscle strength and glenohumeral joint imbalance in female overhead activity athletes.

The effect of different rest intervals between sets on volume components and strength gains.

Comparison of lower body strength, power, acceleration, speed, agility, and sprint momentum to describe and compare playing rank among professional rugby league players.

The acute effects of heavy back and front squats on speed during forty-meter sprint trials.

Is it legitimate to characterize muscle strength using a limited number of measures?

Speed, change of direction speed, and reactive agility of rugby league players.

The effects of plyometric, tennis-drills, and combined training on reaction, lateral and linear speed, power, and strength in novice tennis players.

Measuring aerobic cycling power as an assessment of childhood fitness.

One repetition maximum prediction models for children using the OMNI RPE Scale.

Cardiorespiratory and neuromuscular responses to motocross riding.

Preseason and midseason balance ability of professional Australian footballers.

Elimination of delayed-onset muscle soreness by pre-resistance cardioacceleration before each set.

The impact of different warm-up protocols on vertical jump performance in male collegiate athletes.

Noncompatibility of power and endurance training among college baseball players.

Analysis of the kinematical demands imposed on top-class assistant referees during competitive soccer matches.

Morphological profiles for first-year National Collegiate Athletic Association Division I football players.

The salivary testosterone and cortisol response to three loading schemes.

A moderate-intensity exercise program fulfilling the American College of Sports Medicine net energy expenditure recommendation improves health outcomes in premenopausal women.

Validity of the BOD POD for assessing body composition in athletic high school boys.

The external nasal dilator: style over function?

Assessing pedometer accuracy while walking, skipping, galloping, sliding, and hopping.

A test to evaluate the physical impact on technical performance in soccer.

The development of rating of perceived exertion-based tests of physical working capacity.

Validity of hamstring muscle length assessment during the sit-and-reach test using an inclinometer to measure hip joint angle.

Technical report: Reliability and validity of the iSAM 9000 isokinetic dynamometer.

Timing light height affects sprint times.

The effects of different stretch amplitudes on electromyographic activity during drop jumps.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Lin, Jenq-Dong Liu, Yu Lin, Jenq-Charng Tsai, Feng-Jen Chao, Chun-Yu
Description	Country affiliation: Taiwan Author Affiliation: Lin JD ( Department of Physical Education, Kainan University, Taoyuan, Taiwan.)
Abstract	The purpose of this study was to investigate the effects of different stretch amplitudes (angular displacements) on the performance and electromyographic (EMG) activity during drop jumps (DJs). The AMTI force platform, the Biovision electrical goniometer, and EMG system were used to record the ground reaction forces, knee angular displacement, and the EMG signals of the rectus femoris. The EMG data were treated by different data-processing methods: the biphase and triphase data-processing methods. The results revealed that the short-stretch DJs had a larger passive force, a higher eccentric end force, a higher concentric average force, and a faster eccentric angular velocity showing a more efficient stretch-shortening cycle (SSC) mechanism in using elastic energy and reactive properties than the long-stretch DJs. Therefore, the short-stretch DJs are recommended in training for the SSC movement. However, the results of biphase data-processing EMG method did not support this conclusion because there was no significant difference between long-stretch DJs and short-stretch DJs by using the biphase data-processing method, whereas the triphase method did support this conclusion and demonstrated that short-stretch DJs are more efficient.
File Format	HTM / HTML
ISSN	10648011
Issue Number	1
Volume Number	22
e-ISSN	15334287
Journal	Journal of Strength and Conditioning Research
Language	English
Publisher	Lippincott Williams & Wilkins
Publisher Date	2008-01-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Sport Sciences Electromyography Methods Muscle Stretching Exercises Muscle, Skeletal Physiology Sports Adult Cohort Studies Humans Lower Extremity Male Muscle Contraction Physical Education And Training Physical Exertion Probability Sensitivity And Specificity Journal Article
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physical Therapy, Sports Therapy and Rehabilitation Sports Science

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

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