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answer all

what are the muscles worked during the following exercises?
1. quadruped
2. modified plank
3. superman

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answer all of !

The hamstring, Bi-flexes, hip muscles, Abbs, thigh muscles. Please award Brainliest, if it weren't for it then i would be at expert, but i only need  3 more for Virsito.

The muscles worked during the Quadruped exercise are:
- Spinal Erectors 
- Abdominals
- Deltoids

The muscles worked during Modified plank exercise are:
-  erector spinae
- rectus abdominals 
- transverse abdominous
- trapezius 
- the anterior

The muscles worked during the Superman are:
- Erector spinae 
- Hamstrings
- Gluteus maximus

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.