flexibility training Flashcards
static flexibility
the range of motion about a joint without reference to speed of movement
static active flexibility
achieved by the performer completing a voluntary contraction to move a joint beyond its point of resistance
requires the strength of opposing muscle groups to hold a limn in position
static passive flexibility
assisted by a partner or aid to move the joint just beyond its point of resistance
dynamic flexibility
the range of motion about a joint with reference to a speed of movement
factors that affect flexibility
- type of joint
- length of surrounding connective tissue
- age
- gender
type of joint - flexibility
ball and socket joints have a greater range of motion than hinge joints
length and elasticity of surrounding connective tissue
the greater the length + elasticity surrounding muscle, tendons and ligaments - the greater the range of motion
gender - flexibility
females are generally more flexible than males
age - flexibility
flexibility is greatest at childhood + declines with age
methods of evaluating flexibility
- sit and reach test
* goniometer
sit and reach test
- sit and reach test box is placed against a wall and the parts remove their shoes
- they sit with straight legs and feet flat against the box
- slowly moving forward, reach as far forward along the box as possible
- at full stretch, held for 2 secs
- best score from 3 attempts is recorded
ads + disads of sit and reach test
+ easy test to administer
+ cheap and accessible equipment
+ standardised data for comparison
- not joint or movement specific
- participant must be warmed up, move slowly and hold position for 2 secs for valid results
- test measures flexibility in the lower back and hamstrings only
goniometry
- a 360o protractor w/ two extending arms can be used to measure the range of motion at any joint, in any plane of movement
- head of the goniometer is placed on the axis of rotation of a joint + arms extend along articulating bones
- difference in joint angle is taken from starting position to full range of motion
ads + disads of goniometry
+ objective, valid and accurate measure
+ any joint can be measured, making it sport specific
- can be difficult to locate the axis of rotation
- to get n accurate measure, training is required
training used to develop flexibility
- passive stretching
- proprioceptive neuromuscular facilitation (PNF)
- static stretching
- dynamic stretching
- ballistic stretching
- isometric stretching