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BASIC AEROBIC STEPS
Comparison of aerobic base steps performed with and
without Kangoo Jumps.
by the University of Lausanne Switzerland
Center for the Analysis of Sports Science Geneva,
The musical cadence for the basic aerobic steps (without Kangoo Jumps)
136 bpm during 5 minutes
140 bpm during 5 minutes
142 bpm during 5 minutes
142 bpm during 2 minutes
The musical cadence for the basic aerobic steps
performed with the Kangoo Jumps is:
120 bpm during the whole exercise.
The first part of the exercise is made without
Kangoo Jumps, during 16 minutes.
Every 2 minutes a new step is engaged. After the
end of the first exercise, the same base steps are repeated in the same
sequence, for 16 minutes , with Kangoo Jumps.
The basic aerobic steps studied were:
1. Jogging in place (arms low)
2. Jogging in place (arms lifted)
3. Jogging (forward, backward)
4. Grape Jump
5. Jumping Jacks ? 4
6. Kick (low)
7. Jumping Jacks ? 2
8. Knee ups
The charts and graphs that follow this report show the average cardiac
frequencies (CF) of each subject for each step. In order to check if
the differences of CF between "KA" and "SA KA", smaller than 5, are not
due to the stagnation of the CF, characteristic to subjects attaining
their CF maximum, the CF obtained by each subject at each step is
represented according to the CF maximum of each subject. The increase
of the CF related to the effort tends to diminish when values reach the
threshold anaerobe of the subjects.
In general, it is less economic to execute basic steps with Kangoo
Jumps than without. This difference is about 10 beats/minute, and
varies, according to the step, from 6 to 17 beats/minute. The
difference of CF is increased for steps 4, 6 and 7. Only a slight
difference is found between basic steps 1 and 2. Moreover, the two
latter steps have no high energetic cost (from 137 to 150
beats/minute). Also, the subjects are far from their CF max. (75% for
step 1 and 79% for step 2, see table 1). This difference is principally
due to male subjects (subjects 2 and 3). Both of them obtain a negative
difference. It would be interesting to study, in greater detail, this
difference in order to determine if the "sex factor" clearly influences
the results for these two steps.
requires a lot of energy, with or without Kangoo Jumps. Despite the
relatively high value, between 82% and 99%, the average difference is
only of 4%, which can be explained by the fact that the values
(beats/minute) that are near the CF maximum of each subject have
reached the highest point.
1 had, on an average, 18 more beats/minute with Kangoo Jumps, which
represents the highest difference among all subjects. On the other
hand, subject 3 only obtains a difference of 5 beats/minute. Indeed,
this subject is less economic without Kangoo Jumps for steps 1, 2 and
highest variation of CF between both ways of executing the steps are
also observed with subject 1. This difference is of 30 beats/minute for
basic step 6. Such a difference could be explained by the lack of
experience using Kangoo Jumps. Subject 2 has 26 more beats/minute with
Kangoo Jumps for step 4, which is rather high, but the factor
"beginner" cannot be applied to this subject, because the average that
was obtained for all basic steps is only of 9 beats/minute.
that the exercise was executed uninterruptedly, which may have
influenced the beats for the following steps. Though, for the 4 last
steps, we obtain relative values higher than 80%. Another study that
would reverse the steps? order, would permit us to determine if the
results of the study are influenced by the order itself.
Chérif Zouaoui, January 1998