IsoTone – Basic and Mini – are superb for effective training in sports requiring rapid arm and body movements.
Compressing and then explosively expanding IsoTone against its load-sensitive resistance develops stamina, strength, and muscle speed.
Check out our webpage https://isotone.net/exercises for exercises building up the strength and swiftness of movement in the upper body!
IsoTone is an excellent portable tool for training in speed action for athletes routinely exercising with high load fitness equipment.