Arm, leg and core exercise machines

A mechanical exercise apparatus configured for isolated and compound exercises of an upper extremity, comprising:

• at least three interacting cable pull units accommodating a multiplicity of exercise positions of a first armature during exercise;
• a plurality of pulley assemblies, each pulley assembly of the plurality of pulley assemblies respectively associated with an interacting cable pull unit of the at least three interacting cable pull units, each pulley assembly comprising three sets of dual pulleys double pulleys;
• a wrist exercise handle configured for flexion, extension, lateral excursion or medial excursion of the wrist, internal rotation or external rotation of the wrist, and gripping exercise, wherein the wrist exercise handle is associated with one of the at least three interacting cable pull units;
• a cable converter for converting a flat cable to a round cross-section cable and taking up cable slack to accommodate for various physical sizes of users;
• and
• a pedal weight selector attached to a rotatable selection rod disposed on a weight stack for selection of a desired weight level,
• wherein each of the plurality of pulley assemblies is adjustable to select a cable tension and a rotation angle starting position of the first armature in relation to a second armature during exercise.