Nautilus SELECTTECH 552 Owner's Manual page 9

Start the biceps curl with a neutral wrist and forearm position (palm
facing leg). As the curl progresses from the start to finish position, the
wrist should be rotated progressively outward (palm up). During this
curl the user will be lifting the weight of the dumbbell (25 lbs [11.4
kg]) with the biceps but also lifting the offset weight of 5 lbs (2.27 kg)
with wrist rotation (supination). Unlike a conventional dumbbell that
is balanced end to end, this offset weight will require more muscle
activation and therefore develop the forearm and wrist.
Below you will find some helpful charts that will provide the total
dumbbell weight for various combinations of weight settings.
5
7 .5 6.25
10 7 .5 8.75
12.5 8.75 10 11.25
15 10 11.25 12.5
17 .5 11.25 12.5 13.75
20 12.5 13.75 15
22.5 13.75 15 16.25
25 15 16.25 17 .5
30 17 .5 18.75 20
35 20 21.25 22.5
40 22.5 23.75 25
45 25 26.25 27 .5
50 27 .5 28.75 30
52.5 28.75 30 31.25
5 7 .5 10
use the matrix above to quickly determine the offset weight selection total for your dumbbell.
The chart to the right is a quick reference to determine the amount of weight
offset to one side of the dumbbell.
The amount of weight listed in the Difference column indicates the difference
between the two weights selected with the dumbbell adjustment knob.
The symbol + indicates the amount of offset weight on the heavier side of
the dumbbell.
Although you can continue to increase the amount of weight offset, it is not
generally necessary to offset the weight more than 20 lbs (9 kg).
13.75
15 16.25
16.25 17 .5 18.75
17 .5 18.75 20 21.25
18.75 20 21.25 22.5
21.25 22.5 23.75 25
23.75 25 26.25 27 .5
26.25 27 .5 28.75 30
28.75 30 31.25 32.5
31.25 32.5 33.75 35
32.5 33.75 35 36.25
12.5 15 17 .5 20
this is just one example of the offset
weight settings you may use. the
weight combinations and totals are
quite extensive given the adjustment
options of the selecttech dumbbell.
®
Indicates weight setting on adjustment knob
23.75
26.25 27 .5
28.75 30 32.5
31.25 32.5 35 37 .5
33.75 35 37 .5 40
36.25 37 .5 40 42.5
37 .5 38.75 41.25 43.75
22.5 25 30 35
Nautilus
42.5
45 47 .5
46.25 48.75 51.25
40 45 50 52.5
Difference Offset
2.5 lbs + 1.25 lbs
5 lbs + 2.5 lbs
7.5 lbs + 3.75 lbs
10 lbs + 5 lbs
12.5 lbs + 6.25 lbs
15 lbs + 7.5 lbs
17.5 + 8.75 lbs
20 lbs + 10 lbs
22.5 lbs + 11.25 lbs
25 lbs + 12.5 lbs
30 lbs + 15 lbs
35 lbs + 17.5 lbs
40 lbs + 20 lbs
SelectTech Owner's Manual
® ®