Pedal motion path adjustable elliptical trainer

A pedal motion path adjustable elliptical trainer, comprising:

• a base frame mounted on a support surface;
• a lifting mechanism comprising a rail holder, a support member and two sliding rails, said rail holder being pivotally connected to said base frame and biasable relative to said base frame, said rail holder comprising two first stop portions and two second stop portions, each said sliding rail comprising a pivot portion pivotally coupled to said support member and a sliding portion slidably coupled to said rail holder;
• a rotating mechanism assembly comprising two opposing cranks and a support link set, said two cranks being coaxially pivotally connected to said base frame, said support link set comprising two opposing first end portions and second end portions, each of said two first end portions of said support link set being pivotally connected to one of said two cranks, each of said two second end portions of said support link set being slidably coupled to one of said two sliding rails to perform a closed-path motion;
• a linkage mechanism set comprising two handlebars respectively pivotally connected to opposing left side and right side of said base frame and two links respectively pivotally connected between said handlebars and said second end portions of said support link set;
• a control mechanism mounted between said base frame and said rail holder and adapted to control the angle of deflection of said lifting mechanism;
• and
• a sliding mechanism pivotally coupled between said control mechanism and said rail holder for enabling said sliding portions of said sliding rails to be moved relatively to each other between said first stop portions and said second stop portions of said rail holder.