Lab 5 Flashcards
Difference between the one and two limb measurements for jump heights?
The one legged jump heights were about 15kg of force higher
How to calculate average jump heights
Add them all up, then divide by however many there is
Which was higher between the average. Sum of the one legged jump or the average of the two legged jump?
The one legged jump was higher
-this is due to unilateral strength being known to be greater together tested separately than bilateral strength
Would you expect the bilateral deficit to be larger for lat pulldown or a grip strength task?
You would expect a larger deficit for lat pulldowns because the movement crosses more muscle groups and there is usually a larger deficit found with more muscle groups crossing at each segments
-more joints and stabilizers involved, like the trunk
-grip strength doesn’t have much crossover or any other activation than in the arms
How might postural stability during exercise affect the results for the vertical jump in this lab?
Postural stability would change the results for vertical jump as the core/ trunk stabilizers would be activated, causing the body to not be able to send full force into the legs for the jump as the core needs to help posture
-trunk activation would be more needed for a single leg jump as you would be off balance
What happens to motor unit activation after unilateral vs bilateral training?
Motor unit activation after unilateral training would increase
After bilateral it would stay the same
What happens to the bilateral deficit after unilateral vs bilateral training?
Bilateral deficit would increase after unilateral training
And would decrease after bilateral training -called bilateral facilitation
How could the principle of specifics be applied to a training scenario where a ball athlete aims to reduce strength asymmetry in their legs
Unilateral training would reduce asymmetry in the legs s it could focus on the weaker leg and power the stronger leg further. It would help the basketball athlete as they do a lot of unilateral explosive movements, so specificity in training would be a main target
What happens when cross education is applied during unilateral arm immobilization?
There would be less of a deficit of muscle loss in the immobilized arm if you strength trained the non immobilized arm
-cross education can improve strength and muscle mass of the untrained/ immobilized limb
Describe two different scenarios where cross education would be applied in a rehabilitation setting
One could be if someone has a stroke a lot of them it affects on side of the brain, affecting the other side of the body
-another would be someone has a cast on their left arm and they can’t use it
