Course Content

This 10 module online course aims to take your understanding of asymmetry to new levels, the content of which is detailed below:

Module 1: Master Class: Lower Limb Asymmetries

In this module you will:

  • Be provided with a framework that you can use in this and the other modules to improve your theoretical and practical knowledge around asymmetries
  • Be introduced to the why for asymmetry testing and the many different types of asymmetry you can report on
  • Key factors that you need to consider when planning your testing will be reviewed
  • What can be determined as a meaningful asymmetry threshold will be discussed


Module 2: Assessment Zone 1: Lower Limb Asymmetries 

In this module you will:

  • Flesh out the interlimb asymmetry framework introduced in the Masterclass
  • Take a deeper dive into factors that can affect the reliability of your measures
  • Be introduced into a variety of methods that are used to calculate asymmetry
  • Strategies for meaningful interpretation of data will be discussed
  • Finally a case study will be presented to assist your learning


Module 3: Assessment Zone 2: Force Plate Technology 

In this module you will.

  • Forces and vectors
  • What is a force platform?
  • Technical considerations
  • Why the need for force plates?
  • What can force platforms measures?


Module 4: Assessment Zone 3: Bilateral and Unilateral Assessments

In this module you will:

  • Be introduced to single vs double leg CMJ performance
  • Reminded of the benefits of force plate technology
  • The benefits of single and double leg CMJ are then explained
  • A discussion of the variables to monitor ensues
  • Finally, a discussion of some single and double leg data concludes this module


Module 5: Assessment Zone 4: Multi-directional and Multi-hop Assessments

In this module you will:

  • Find out how much the different acyclic multidirectional jumps have in common.
  • Whether there should be different limb asymmetry thresholds based on jump direction.
  • Learn about cyclic multi-hop assessments and their reliability, validity and discriminative ability.
  • Contemplate what tests you might include in a cyclic and acyclic multidirectional testing battery to give thorough insight into limb asymmetry and return to play readiness.

Module 6: Exercise Zone 1: Countermovement Jump

In this module you will:

  • Learn about the different phases of the CMJ
  • The many different variables that can be calculated during these phases will be briefly discussed
  • A mini-exemplar case study of an ACL injured athlete will be introduced with an emphasis on the eccentric phase
  • Finally, a number of exercises will be explained that can be used to address movement issues associated with each phase of the CMJ


Module 7: Exercise Zone 2: Countermovement Jump Advanced

In this module you will:

  • Review the CMJ signal and examine phase deconstruction in more detail
  • Examine the impulse-momentum relationship in relation to jumping
  • Be introduced to the more important variables you should keep an eye on in each of the phases
  • Explore the utility of the impulse asymmetry index
  • Look at some exercises that align with the findings from each impulse asymmetry index


Module 8: Exercise Zone 3: Elastic Enhancement

In this module you will:

  • Be briefly reminded of the various components that contribute to contractile and elastic force capability.
  • Be introduced to the jumps that assess contractile and elastic contribution.
  • Measures of elastic enhancement and eccentric utilization ratios will be discussed.
  • Look at a case study and the many variables captured from a force plate to study asymmetry and eccentric enhancement.
  • Some exercises to address various diagnoses will be detailed.


Module 9: Exercise Zone 4: Slow and Fast SSC Performance

In this module you will:

  • Be briefly reminded of how you can use the three-component model to explain fast and stretch-shorten cycle (SSC) performance
  • Be introduced to the jumps that assess slow and fast SSC performance
  • The reactive strength index (RSI) will be discussed
  • A small case study asymmetry assessment data will be introduced for soccer and cricket players
  •  Some exercises to address various slow vs fast SSC diagnoses will be detailed


Module 10: Exercise Zone 5: Landing Diagnostics and Asymmetry Progression

In this module you will:

  • Be briefly reminded of difference between eccentrics for propulsion and landing, highlighting the greater forces associated with landing
  • Explore information around landing technique and diagnostics is reviewed
  • Force plate landing diagnostics will be briefly introduced
  • A program framework is provided for eccentric strengthening of landing.
  • Thereafter loads of ideas and examples are given for multi-planar eccentric strengthening

Founder of JC Online - PhD (Auckland), Bed, MA (Canada), Dip High Performance Coaching (Canada), Dip PE, Dip Tchng.

Professor John Cronin

Hi, I am John Cronin, AKA JC and I am a Professor in Strength and Conditioning. I am primarily an educator, researcher, and mentor. I have two passions – one related to improving human movement, athleticism and sporting performance via strength and conditioning, and the other related to sharing this information with others.

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