JP Fitness Forums - View Single Post - product debate and questions: weighted hula hoop

Axis · 06-09-2005, 12:45 PM

Not sure about the biomechanics, but here are some physics.

Essentially, when hula-hooping, your using the rotational inertia of the hula hoop to overcome the force due to gravity.

Force = mass x acceleration
acceleration due to gravity is constant (9.8 m/s^2)

Since the mass of the Curves hoop is greater, the gravity force that needs to be overcome is greater. Therefore, the Curves hoop needs to maintain a higher rate of rotation, which requires a greater force applied to it, which means the user has to exert more energy.

06-09-2005, 12:45 PM	#11 (permalink)
Axis Fat Guy in a Little Coat Join Date: Feb 2005 Location: Saint Paul, MN Posts: 1,116	Not sure about the biomechanics, but here are some physics. Essentially, when hula-hooping, your using the rotational inertia of the hula hoop to overcome the force due to gravity. Force = mass x acceleration acceleration due to gravity is constant (9.8 m/s^2) Since the mass of the Curves hoop is greater, the gravity force that needs to be overcome is greater. Therefore, the Curves hoop needs to maintain a higher rate of rotation, which requires a greater force applied to it, which means the user has to exert more energy.