Abstract: Exercisers are disclosed which include a flexible stretchable loop which is configured to receive both a hand or foot of the person exercising, and which is covered with a stretchable textile which is stretchable therewith. The stretchable loop closely conforms to and grips either the hand or foot of the person when the person is exercising, and is attached to extension spring which has a spring force which permits it to be stretched by the muscle force of a person when the hand or foot of the person is received in the loop so as to extend to a length which exceeds at least 100% of its length at rest, and preferably 200-300% of its length at rest. A variety of exercise routines are made possible by the exercisers of the invention and are disclosed for exercising the thigh, hip joint, groin, arms, stomach, back and/or gluteal muscles.

Abstract: Exercisers are disclosed which include a flexible stretchable loop which is configured to receive both a hand or foot of the person exercising, and which is covered with a stretchable textile which is stretchable therewith. The stretchable loop closely conforms to and grips either the hand or foot of the person when the person is exercising, and is attached to extension spring which has a spring force which permits it to be stretched by the muscle force of a person when the hand or foot of the person is received in the loop so as to extend to a length which exceeds at least 100% of its length at rest, and preferably 200-300% of its length at rest. A variety of exercise routines are made possible by the exercisers of the invention and are disclosed for exercising the thigh, hip joint, groin, arms, stomach, back and/or gluteal muscles.