Weightlifting bar in weightlifting frame

In a weightlifting frame having a base connected to opposing first and second rigid frame members, the frame members each defining a respective vertically-oriented channel, an elongated, rigid weightlifting bar, comprising:

• first and second terminal sections having respective first and second plate diameters, and each terminal section being configured to engage at least one weight element;
• a middle section separated from said first and second terminal sections by respective first and second plate abutments fixed to the weightlifting bar;
• a first frame abutment securably fixed to said middle section and adjacent to the first plate abutment, said first frame abutment and the first plate abutment defining a first bar space;
• and
• a second frame abutment securably fixed to said middle section and adjacent to the second plate abutment, said second frame abutment and the second plate abutment defining a second bar space;
• wherein the weightlifting bar engages the weightlifting frame with the bar moveably disposed within the channels, and with said middle section horizontally disposed between the first and second rigid frame members, such that the first frame member is disposed, within the first bar space, and between said first frame abutment and the first plate abutment, and such that the second frame member is disposed, within the second bar space, and between said second frame abutment and the second plate abutment, such that said first and second frame abutments respectively abut the first and second frame members when the weightlifting bar reaches a predetermined angle from horizontal.