Butterfly Swimming Height

BUTTERFLY SWIMMING HEIGHT
Introduction
Athlete’s main aim would be to enhance competitive butterfly swimming technique in order to
attain elevated propulsion power. This would prevent significant intra – cycle variability in the
center of the body weight displacement in body motion and cyclic limb. The swimmers would
not swim at a steady speed because variation in the movement of legs, arms and trunk in every
stroke cycle would result into a modification on the swimming speed. These movements are
designed to overcome inertia and hydrodynamic drag that allow effective locomotion (Strzała et
al., 2017).
Research shows that swimmers may decrease the energy they spend/use by assuming specific
positions at a particular butterfly cycle stage (Louro et al., 2010), with important
interrelationships between passive drag, swimming movement and swimmers performance.
Coordinated trunk, arms and leg movement always must be coupled with the entire body
undulation in butterfly method. Forward motion movement would be caudally transferred
through the whole body wave segment wave, which would act as a ‘whip-like’ propulsive action.
A butterfly swimming competitive race would consist of numerous fundamental components that
would include both the start and turn with the locomotion of the underwater dolphin movement
and the technique of full stroke butterfly surface. It may be asserted that the efficacy of the
method of complete cycle swimming stroke, this might not be instantly detected, it would mainly
depend adequately on motor control. According to Schnitzler et al. (2010), butterfly method can
be considerably affected by synchronization at important engine points of arm and leg behavior.
The objective of these studies acknowledges the fundamental components of somatic traits which
would consist of body composition and length that always would be considered when analyzing
swimmers’ bodies that would successfully complete their butterfly swimming race. A higher
muscles generations strength, together with swimmers’ endurance who participates on butterfly
race has been partially studied. However, a forceful sprint requirement of a 50 m lap and the
velocity tolerance fatigue resulted from 100 meters and 200 meters butterfly sprinting seems to
be familiarized by swimmers.

Investigations
Procedure
1. Recording of time using automatic stop watch with the aid of a friend standing on the
edge of the swimming pool
2. Several butterfly swimming 50 meters laps were made from the start to the end and the
time of each complete laps were recorded as shown below.
50 m Butterfly time in seconds
T1 47.59
T2 46.67
T3 45.12
T4 47.23
T5 47.65
3. The average time was determined then determined at the end of the fifth lap by adding
together the time taken for each lap and dividing it with five
4. The average velocity was then determined by a relationship of distance covered divided
by the average time determined in procedure (3) above.
5. The angle used for swimming was assumed to be 600
6. The gravitation force was 9.8 m/s2, while the smallest time taken to calculate the position
of the swimmer was taken to be 0.01 seconds
7. Using excel the following were determines;
i. The horizontal velocity, Vx, = average velocity * sin*(angle)
ii. The vertical velocity, Vy, = average velocity * cos*(angle)
iii. The vertical height, X, = initial position + Vx *dt

Evaluations
1. Using simulation a graph of vertical height against time was then drawn
2. From the graph the following were determined;
a. Maximum depth
b. Average velocity
c. Change in potential energy
d. Number of cycles covered for the average time
e. Equation for the curve
i) A graph of vertical height against time
0 0.1 0.2 0.3 0.4 0.5
-4.2
-3.7
-3.2
-2.7
-2.2
-1.7
-1.2
-0.7
-0.2
0.3
0.8
f(x) = − 4.9 x² + 0.58 x + 0
Time in sec
Vertical height
ii) Equation of the curve
H = -4.9t2 + 0.5828t + 7.0 *10-15