NDLI: Validity and reliability of Optojump photoelectric cells for estimating vertical jump height.

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: 2011 Volume: 25 Issue: 12

Year: 2011 Volume: 25 Issue: 11

Year: 2011 Volume: 25 Issue: 10

Year: 2011 Volume: 25 Issue: 9

Year: 2011 Volume: 25 Issue: 8

Year: 2011 Volume: 25 Issue: 7

Year: 2011 Volume: 25 Issue: 6

Year: 2011 Volume: 25 Issue: 5

Year: 2011 Volume: 25 Issue: 4

Year: 2011 Volume: 25 Issue: 3

Year: 2011 Volume: 25 Issue: 2

Strong relationship between heart rate deflection point and ventilatory threshold in trained rowers.

Triaxial modulation of the acceleration induced in the lower extremity during whole-body vibration training: a pilot study.

Relationship between postactivation potentiation of knee extensor muscles, sprinting and vertical jumping performance in professional soccer players.

The role of rate of force development on vertical jump performance.

Comparison of two different resistance training intensities on excess post-exercise oxygen consumption in African American women who are overweight.

Influence of individualized training on psychomotor performance of young soccer players.

The effect of position on the percentage of body mass supported during traditional and modified push-up variants.

A test for determining critical heart rate using the critical power model.

Age, sex, and finish time as determinants of pacing in the marathon.

The use of whole-body vibration as a golf warm-up.

Exercise intensity and load during different races in youth and junior cyclists.

Effects of combined electromyostimulation and gymnastics training in prepubertal girls.

Hormonal responses to resistance exercise after ingestion of carnosine and anserine.

Effect of stroke rate reduction on swimming technique during paced exercise.

A longitudinal analysis on the validity and reliability of ratings of perceived exertion for elite swimmers.

Effects of lifting tempo on one repetition maximum and hormonal responses to a bench press protocol.

Velocity at lactate threshold and running economy must also be considered along with maximal oxygen uptake when testing elite soccer players during preseason.

Acute effects and postactivation potentiation in the Special Judo Fitness Test.

Short-term heavy resistance training eliminates age-related deficits in muscle mass and strength in healthy older males.

Enhancing foot velocity in football kicking: the role of strength training.

Branched-chain amino acid supplementation lowers perceived exertion but does not affect performance in untrained males.

Effects of a preseason intervention on anthropometric characteristics of semiprofessional rugby league players.

The effects of plyometric training followed by detraining and reduced training periods on explosive strength in adolescent male basketball players.

The effects of combined elastic- and free-weight tension vs. free-weight tension on one-repetition maximum strength in the bench press.

Effect of bout duration on exercise intensity and technical performance of small-sided games in soccer.

The effects of experimenter gender on state social physique anxiety and strength in a testing environment.

The effects of fatigue of the plantar flexors on peak torque and voluntary activation in untrained and resistance-trained men.

Validity and reliability of Optojump photoelectric cells for estimating vertical jump height.

Prevention of falling risk in elderly people: the relevance of muscular strength and symmetry of lower limbs in postural stability.

The effectiveness of traditional and sling exercise strength training in women.

Prehabilitation before total knee arthroplasty increases strength and function in older adults with severe osteoarthritis.

Test battery designed to quickly and safely assess diverse indices of neuromuscular function after unweighting.

VO2 requirements of boxing exercises.

Effects of official Taekwondo competitions on all-out performances of elite athletes.

Effect of various warm-up devices on bat velocity of intercollegiate baseball players.

Reliability and validity of a new repeated agility test as a measure of anaerobic and explosive power.

Psychophysiological effects of preperformance massage before isokinetic exercise.

Year: 2011 Volume: 25 Issue: 1

Year: 2010 Volume: 24

Year: 2009 Volume: 23

Year: 2008 Volume: 22

Validity and reliability of Optojump photoelectric cells for estimating vertical jump height.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Glatthorn, Julia F. Gouge, Sylvain Nussbaumer, Silvio Stauffacher, Simone Impellizzeri, Franco M. Maffiuletti, Nicola A.
Description	Country affiliation: Switzerland Author Affiliation: Glatthorn JF ( Neuromuscular Research Laboratory, Schulthess Clinic, Zurich, Switzerland. Julia.Glatthorn@kws.ch)
Abstract	Vertical jump is one of the most prevalent acts performed in several sport activities. It is therefore important to ensure that the measurements of vertical jump height made as a part of research or athlete support work have adequate validity and reliability. The aim of this study was to evaluate concurrent validity and reliability of the Optojump photocell system (Microgate, Bolzano, Italy) with force plate measurements for estimating vertical jump height. Twenty subjects were asked to perform maximal squat jumps and countermovement jumps, and flight time-derived jump heights obtained by the force plate were compared with those provided by Optojump, to examine its concurrent (criterion-related) validity (study 1). Twenty other subjects completed the same jump series on 2 different occasions (separated by 1 week), and jump heights of session 1 were compared with session 2, to investigate test-retest reliability of the Optojump system (study 2). Intraclass correlation coefficients (ICCs) for validity were very high (0.997-0.998), even if a systematic difference was consistently observed between force plate and Optojump (-1.06 cm; p < 0.001). Test-retest reliability of the Optojump system was excellent, with ICCs ranging from 0.982 to 0.989, low coefficients of variation (2.7%), and low random errors (±2.81 cm). The Optojump photocell system demonstrated strong concurrent validity and excellent test-retest reliability for the estimation of vertical jump height. We propose the following equation that allows force plate and Optojump results to be used interchangeably: force plate jump height (cm) = 1.02 × Optojump jump height + 0.29. In conclusion, the use of Optojump photoelectric cells is legitimate for field-based assessments of vertical jump height.
File Format	HTM / HTML
ISSN	10648011
Issue Number	2
Volume Number	25
e-ISSN	15334287
Journal	Journal of Strength and Conditioning Research
Language	English
Publisher	Lippincott Williams & Wilkins
Publisher Date	2011-02-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Sport Sciences Athletic Performance Physiology Exercise Test Instrumentation Sports Adult Cohort Studies Equipment Design Methods Female Humans Male Muscle Strength Reproducibility Of Results Sensitivity And Specificity Young Adult Comparative Study Journal Article Validation Studies
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