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Analysis of an axel jump

Assignment 2

Dannielle Lucy

on 22 April 2013

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Transcript of Analysis of an axel jump

Analysis: Assignment 2
Dannielle Guppy Axel jump take off in figure skating BBC, 2006 Backround information...
Invented by Axel Paulsen - 1882

Take off: forward outside edge, landing: backward outside edge

The only jump to take off forwards

It completes 1.5 rotations mid air

Double and triple axels have 2.5 and 3.5 rotations respectively

Most skaters hit a slight plateau learning this element

The highest scoring single, double and triple jump

It is also used as a pair throw jump Analysis software This analysis is focused on technical aspects of figure skating

The tools used are biomechanical in their approach:

Highlight technical issues
Slow-motion replay
Show to the athlete and coach
Implement changes to increase progression and consistency

Some examples of these packages are:

Kandle Swinger
Quintic Mobile Applications Smart phones have paved the way for mobile analysis applications: KPI's for sport Strength
Muscular Endurance
Disciplined / motivated
Creative / musical KPI's for axel Strength
Technical ability
Speed and height www.answers.com Breakdown... 1. Preparation
2. Take off
3. Landing and exit Anatomical Analysis of Axel take off During step down phase:
Flexion of hip, knee and ankle (dorsi-flexion) in supporting leg
Knee and ankle of free leg flexed, hip is extended
During take off:
Extension of hip and knee and plantar-flexion of supporting leg
Knee and hip of free leg flexed Muscles used: Tensor fascia latae (femoral abduction and hip rotation)
Iliacus (hip flexion)
Semimembranosus, semitendinosus, bicep femoris, gracilis, sartorius (knee flexion)
Vastus lateralis, intermedius, medialis and rectus femoris (knee extension)
Gastrocnemius and soleus (plantar-flexion)
Tibialis anterior and extensor hallucis longus (dorsi-flexion) Shulman, 2002 Casey, 1999 Shulman, 2002 Observational Analysis Novice vs Elite Kostner, 2013 Biomechanical Analysis Skater Improvements and
Strength and endurance needs attention - found to be an indicator of jump success
Attention to technique - practice quality
Off-ice training
Harness work
Psychological factors - not all attempts successful
Watch elite skaters
Regular coaching and analysis
Walk through jumps pre-attempt - focus on quality of this to replicate jump Exercise Prescription
Dry land jump training - analysed and under coaches tuition
General training - bodyweight
Plyometric training NISA Coaching Conference, 2012 Off-Ice Why use analysis? Highlight areas of strength and weakness
Links in with coaching process
Eliminate subjective interpretation
Allows for comparisons between individuals
Provide an additional aid to athlete and coach
Record of improvement
Feedback: instant, qualitative
Help the athlete understand a change
Learning styles
Development of athlete and coach Hughes & Franks, 2008 Software: the pro's and con's Pro's Con's "Information provided to the athlete about an action is one of the most important variables affecting learning and the subsequent performance of a skill" Hughes & Franks, 2004 Quintic: Ubersense: Quintic: Ubersense: Used by many governing bodies and EIS
Side-by-side views and slow motion
Instant, qualitative feedback
Quantitative feedback post training
Measure movement patterns from video or stills
Have varying software's to cater for differing needs
Research conducted to ensure specificity It is only 2D analysis
It is an expensive system
For quantitative feedback: post training
Need to understand software: not for novices
Might need a qualified analyst
Free trial - limited capabilities
Can only be used with Windows operating system An app: available to all, cheap
Instant qualitative, visual feedback
Portable and quick to set up
Aid athlete and coach understanding
Easy to use
Slow-motion analysis
Able to annotate and record voice notes
Easy share videos via numerous platforms Limited to the camera quality on the device
Only available on smartphones
May be used incorrectly: inexperienced athlete
Limited analysis tools: no angles etc.
Only 2D
Lacks reliability and validity
Limited or no research iPad or Mobile video device Pro's: Cons: Portable
No set up involved
Allows for video sharing and upload
Instant feedback on large screen
Save many videos which are dated and timed Limited camera quality
Portable: not steady when recording
Memory can be easily filled
No slow-motion References: BBC (2006) The 2006 Winter Olympic Games on the BBC [Online] Available: http://www.bbc.co.uk/pressoffice/pressreleases/stories/2006/01_january/10/olympics_strom.shtml [Accessed: 04.04.13]

Casey, K. (1999) The PSA Coaches Manual. USA: PSA

Coach's Eye (2013) [Online] http://www.coachseye.com [Accessed: 04.04.13]

Comuk, N. & Erden, Z. (2012) The effect of muscular strength and endurance on technical skill in professional figure skaters. Isokinetics and Exercise Science. V20 (2): pp. 85-90

Hughes, M. & Franks, I. M. (2008) The Essentials of Performance Analysis: an introduction. Oxon: Routledge

Kostner, C. (2013) Carolina Kostner - 2013 World Figure Skating Championships - Free Skating. [Online] Available: [Accessed: 27.03.13]NISA (2012)

NISA Coaching Conference: Off Ice Training. [Online] Available: [Accessed: 06.04.13]Quintic (2013) Observational Analysis The take-off The step-down Ubersense Quintic Biomechanical v21 Step down: elite vs novice Take off: hip angles Ubersense vs Quintic Quintic Biomechanics v21. [Online] Available: http://www.quintic.com/software/biomechanics/index.htm [Accessed: 02.04.13]

Shulman, C. (2002) The Complete Book of Figure Skating. Illinois: Human Kinetics.

Ubersense (2013) [Online] http://www.ubersense.com [Accessed: 04.04.13] (Comuk & Erden, 2012)
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