The TOP 5 reasons to
use FINS during Swimming workouts
1) Improve Body Position and Technique
One
of the greatest benefits of using fins is the ease of holding a better body
position. This allows swimmers to focus on other parts of the stroke technique,
such as arm position, body rotation or timing.
2) Develop Leg Strength
Kicking with fins is like lifting weights: the added resistance of the water on
the blade of the fin increases the workload on your leg muscles. Your body
adapts by increasing the strength and endurance of the muscles involved.
Stronger muscles move more water making you swim faster, all other things being
equal.
A word about specificity: It's important to realize that muscular strength for
swimming needs to be "specific." Good runners, cyclists, roller
bladers, etc. can have very strong leg muscles, but the muscles have developed
for running, cycling or roller blading, not for swimming. Fins develop leg
strength specifically for swimming, and in a way that few other activities can.
3) Increase Ankle Flexibility
Swimmers can
hyperextend (plantar flex) their ankles, pointing their toes so that the top of
the foot forms a straight line with the shin. Because of the extra load from
the increased surface area that fins provide, swimming or kicking with fins
forces ankle extension during the power phase (pushing down when swimming
freestyle) of the kick. Repeated fin use eventually stretches the ankles,
increasing their flexibility for moving in all directions and helping the kick
become more propulsive and efficient.
4) Increase fitness and Cardiovascular
Conditioning Although swimming is considered one of the best aerobic or
cardiovascular-conditioning exercises, many people forget to use their legs
where the largest muscles are located. Since the greatest cardiovascular
benefits come from including the highest percentage of the body's muscles -
that's why cross-country skiing and rowing are considered two of the most
demanding sports - it makes sense that swimmers who activate the large muscle
mass of the legs by kicking will benefit from a more demanding workout that
burns more calories and increases fitness levels. Add fins to the equation and the increased load they add to
the legs means that as long as exertion levels remain high, the cardiovascular
system gets an even more intense workout with even greater fitness benefits.
5) Fast Swimming!
One of the
goals of swimming faster with fins is to swim faster when the fins are taken
off! By transferring the feeling of swimming faster and higher with fins to
swimming without them, a swimmer makes use of a phenomenon known as
neuromuscular patterning. The muscles and the nerves can actually remember the
feeling of swimming faster and will try to duplicate the pattern the next time
out. The more times the pattern is repeated (swimming faster and higher in the
water with fins), the easier it is to duplicate it. The end result: the
swimmer's technique and neuromuscular coordination improves.
What kind
should I buy and how can I tell if they fit?
Fins should
be snug fitting but not too tight. If you can't find the right size, get the
slightly larger ones and wear socks with them.
Fin sizes
Regular
sized fins are great for beginners and people who need to develop ankle
flexibility.
Link to an
example of this fin at Elsmore aquatics:
http://www.elsmoreaquatic.com/cgi-bin/store/agora.cgi?cart_id=5402758.27083*wL8tB0&p_id=TR112&xm=on&ppinc=search2
Medium bladed
fins offer more power form each kick.
They are great for working on dolphin kick and butterfly or
breaststroke. You can feel your body and leg movements as you swim - the bigger
fin adds emphasis, amplifying each kick.
Recommended for the more experienced swimmers.
Link to an example of this
fin at Keifer aquatics:
http://www.kiefer.com/Kiefer/productr.asp?pf%5Fid=800080&gift=False&0=dept%2Easp%2Cdept%5Fid%3D88%26Tree%3D%2CCompetitive%20Swim&1=dept%2Easp%2Cdept%5Fid%3D5%26menu%5Fid%3D%26Tree%3D0%2CTraining&2=dept%2Easp%2Cdept%5Fid%3D48%26menu%5Fid%3D%26Tree%3D1%2CFins&HSLB=False&mscssid=16A823FDCE114EB09183D46926405792
Avoid long
bladed or vented scuba style fin. While excellent for scuba uses, they are not
the best choice for swimming workouts. Their length and design result in very
slow movements, too slow to give you as much specific benefit as the shorter
variety. They still offer some benefits, for flexibility, increased workout
load, and speed, but not as many as the shorter or medium bladed variety.