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2. BUR Barbell Company - Wikipedia

   en.wikipedia.org/wiki/BUR_Barbell_Company

   The final BUR dumbbell design consisted of a standard 12-inch bar with a removable chrome-plated flanged sleeve and two standard collars. [17] Multifunctional Exercise Stand This product, introduced in the mid-1950s, was an exercise stand that could be used as a Squat Rack, Prone Bench, Abdominal Board, Leg Raise, Dip Station, etc. [18 ...

3. Dumbbell - Wikipedia

   en.wikipedia.org/wiki/Dumbbell

   Selectorized dumbbells A set of fixed-weight dumbbells. By the early 17th century, the familiar shape of the dumbbell, with two equal weights attached to a handle, had appeared. [8] There are currently three main types of dumbbell: Fixed-weight dumbbells are weights created in a dumbbell shape.

4. Weight plate - Wikipedia

   en.wikipedia.org/wiki/Weight_plate

   Weight machines commonly use specialized sets of plates (called "weight stacks"), consisting of a set of rectangular plates mounted on rails. Through a cable and pulley system, the burden is transferred to the machine's user. By placing a pin in the stack that causes the cable to pull on each plate above the pin, the weight is selected.

5. Thomas Inch - Wikipedia

   en.wikipedia.org/wiki/Thomas_Inch

   Inch is known for his Thomas Inch dumbbell, also known as '172' or the 'unliftable' challenge dumbbell. The iconic dumbbell weighs 172 lbs and 9 oz. (78 1 ⁄ 4 kg) and is extremely difficult to lift, partly due to its sheer weight, but primarily because of its thick handle of 2 3 ⁄ 8 " (6.03 cm) in diameter, making it difficult to hold on to ...

6. Rack unit - Wikipedia

   en.wikipedia.org/wiki/Rack_unit

   Rack with sample component sizes including an A/V half-rack unit. A rack unit (abbreviated U or RU) is a unit of measure defined as 1 + 3 ⁄ 4 inches (44.45 mm). [1] [2] It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed ...

7. List of weight training exercises - Wikipedia

   en.wikipedia.org/wiki/List_of_weight_training...

   If a weight is used, then it rests upon the shoulders, or is held in the hand(s). This is an isolation exercise for the calves; it particularly emphasises the gastrocnemius muscle, and recruits the soleus muscle. [6] Equipment Body weight, dumbbells, barbell, Smith machine or standing calf raise machine. Major variants