Other
Unit 7. Assignment 3. Angular motion in sport and exercise activities. Notes.
- Institution
- PEARSON (PEARSON)
This notes supported an assignment which was marked and IV'd at a distinction level.
[Show more]
Content preview
Unit 7. Assignment 3. Angular motion in sport and exercise activities notes.1) Centre of mass for gymnasts on the rings. Centre of mass must be directly underneath to remain still
otherwise, they will swing. Not necessarily bad as this is needed for routines. Also mention handstand
stability with smaller base of support and higher centre of mass.
2) The centre of mass is altered to move outside the body in the Fosbury Flop which is achieved by the
hyperextension which is a large arching of the back (demonstrate).
3). Centre of mass above planted foot on kicks. Optimal lean back to not fall forwards or stay stationary.
4) Lowered centre of mass for increased stability when returning shots so that the risk of falling is
decreased if the tennis player needed to reach far for the shot.
5) Extending the spine in the Fosbury Flop allows high jumper’s centre of mass to travel under the bar
whilst they travel over the bar, making it easier to jump higher. High vertical velocity aids raising the
centre of mass and increasing horizontal velocity.
6) Gymnasts broaden their hands and feet to establish a larger base of support with a lower centre of
mass for increased stability and making it easier to keep the body above the feet in an inverted posture.
7) Tennis players move their centre of mass forwards on the follow through phase of serves to hit the
ball more easily with increased force, velocity, and efficiency.
8) Talk about sitting into punches to lower centre of mass for more force transfer and stability.
9) 2nd class lever used in high jump for running and jumping. Body weight = load. Balls of the feet =
fulcrum. Gastrocnemius contraction = effort.
10) 3rd class lever frequently used in tennis. Shoulder joint = fulcrum. Racquet = load. Deltoid contracting
= effort.
11) 1st class lever in gymnastics cartwheel. Planted leg = fulcrum (front, then rear leg). Bodyweight
including legs in the air = load. Body and arms = effort.
12) 1st class lever for headbutts in Burmese boxing, combat sambo and Krav Maga. Neck muscles =
effort. Cervical spine = fulcrum. Weight of the head = load.
13) Transverse axis/sagittal plane in high jump as Fosbury Flop is like a somersault which is extension,
and the run up involves knee, hip, ankle, and toe flexion and extension (or dorsi/plantar).
14) Longitudinal axis/transverse plane in tennis as the player’s shoulder initially externally rotates to
wind up power for a serve, then internally rotates to follow the racquet through and execute the serve.
15) Sagittal axis/frontal plane for side kick in karate, kickboxing and taekwondo as the hips adduct to lift
the leg and move sideways.
16) Transverse and longitudinal axis/sagittal and transverse plane in gymnastics vaulting during a 360-
back handspring as the somersault involves transverse axis rotation/sagittal plane movement and the
360 rotation involves longitudinal axis rotation/transverse plane movement.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller SportsBTECGuy. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £5.89. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81113 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now
