Garden loppers

Garden loopers are a popular gardening tool used for thick branches, shrubs and brush that have grown out-of-bounds, requiring more strength to prune or cut. Because you need to use extra arm strength, try to do some of the lifting and clipping with support from your shoulder blades and keep your forearm and hand as straight as possible without bending your wrist to avoid soreness or strain.
Garden loppers:

Garden loppers pictured: Fiskars 9154 PowerGear 32-Inch Bypass Lopper