Patent ID: 7914427

Claim:
An exercise assisting apparatus comprising: a seat having a contact surface configured to support thereon a buttock of a user with the user's feet resting on a predetermined foot supporting surface; a seat driving mechanism configured to use a driving source for displacing said seat in a direction of varying the user's weight acting on the user's legs; and an elevator mechanism connected with the seat and configured to adjust a vertical position and a forward/rearward position of said; wherein said elevator mechanism is configured to adjust the position of the seat a restricted range, said range being on a line or curve between a first seat position and a second seat position, said line or curve being inclined rearwardly and upwardly with respect to a vertical direction, wherein said first seat position is defined as the position of the seat where the contact surface of the seat contacts with a buttock of a first user when: (A) the straight line linking the foot joint and the knee joint of the first user coincides with the vertical direction; (B) the first user's feet place on the predetermined position on said foot supporting surface; and (C) the first user's knee bending angle is set to a first angle, said first user being a user of minimum physique, wherein said second seat position is defined as the position of the seat where the contact surface of the seat contacts with a buttock of a second user when: (a) the straight line linking the foot joint and the knee joint of the second user coincides with the vertical direction; (b) the second user's feet place on the predetermined position on said foot supporting surface; and (c) the second user's knee bending angle is set to a second angle, said second user being a user of maximum physique, wherein each of said first angle and said second angle is an appropriate angle by which the exercising effect is high and knee pain is not liable to occur.