Tuesday, February 26, 2008 

The Difference Between Aerobic and Anaerobic Exercises

Many people mistakenly believe that all vigorous forms of exercise are aerobic in nature. However, some forms of vigorous exercise are actually anaerobic, and have a very different effect on the body. If youre just getting started on an exercise regimen, this information will help you sort out the difference between the two and tailor your workouts accordingly.

So exactly what is the definition of aerobic exercise? Aerobic means with oxygen, where anaerobic is without oxygen. No, that doesnt entail holding your breath while exercising! Rather, it refers to cellular tissues producing energy without having to rely on oxygen availability. Alternatively, you may have guessed that aerobic exercise requires large supplies of oxygen to generate energy. The fundamental difference between aerobic and anaerobic exercises is that simple.

A more detailed definition is that during aerobic exercise, activity is so sustained that it requires large amounts of oxygen. The muscles utilize oxygen to burn fat and glucose to manufacture adenosine triphosphate (ATP) - the basic energy vehicle for all cells in the body. During the initial stages of aerobic exercise, glycogen is transformed into glucose. If glucose stores become depleted, fat is metabolized as fuel. Its interesting to note that runners high occurs when muscles have exhausted their immediate glycogen stores and begin relying only on oxygen, which releases endorphins in the brain.

During anaerobic exercise, the muscles being used rely on energy-producing processes that dont require large amounts of oxygen. Instead, the body metabolizes muscle glycogen to produce power. Glycogen is supplied by blood sugar, which is manufactured by the liver from dietary amino acids and carbohydrates--whole grain, of course! Anaerobic exercise is so fast and brief that it doesn't have time to rely on oxygen, so glycogen is used.

Some people mistakenly believe that aerobic exercise makes you small and weak. However, it actually tones muscle throughout your body and burns fat. This will make you look good in your bathing suit--not to mention your birthday suit! The effects that aerobic activity has on your body are not merely cosmetic - there are numerous health bonuses, such as:

Improved circulation and lower blood pressure
Increased lung capacity through stronger respiratory muscles
A stronger heart, which boosts pumping efficiency and lowers the resting heart rate
Increased red blood cell count, which transports oxygen more efficiently throughout the entire body
Reduced risk of cardiovascular disease

The effects that anaerobic exercise has on your body involves being able to deliver powerful performance on demand. That comes in handy when sprinting to the finish line, or making a break to score after stealing the ball. Muscles that are anaerobically trained develop differently, which boosts their performance in brief, high-intensity situations. Benefits include:

Stronger bones
Reduced muscle atrophy with age
Increased speed and power
Increased muscle strength and mass

Its important to understand the different types of exercises that produce an aerobic vs. anaerobic effect. Anaerobic benefits are produced by brief, high-intensity activities, while in the aerobic zone, effort is moderate with a steady heart rate.

Specific types of anaerobic exercise include tennis, weight lifting, sprinting and jumping. If youd prefer not to frequent a gym, weight lifting can be performed in the comfort of your own home. A few dumb-bells, a weight bench and medicine ball are all you need.

Some good aerobic exercises are walking, running, swimming, cycling, cross-country skiing and rowing. Fortunately, you can do aerobic exercises at home: riding an exercise bike, walking on a treadmill, or following an exercise video - the choices are virtually endless. This is particularly helpful if its rainy or drastically cold outdoors. Also, depending on where you live, going snow-shoeing, hiking or kayaking is possible without ever having to step foot in the car!

Combining aerobic and anaerobic exercise is essential to maintaining overall balanced fitness. While most associate getting into shape with aerobic activities, anaerobic exercise is a beneficial complement to aerobic exercise. For example, weight lifting is a great way to add even more tone and definition beyond what aerobic training provides.

Be sure to check with your physician before beginning any exercise regimen. Also, its very important to begin any exercise program slowly. Many people overdo it and lose motivation or worse yet, sustain injury. You may experience a little soreness the day after working out in the beginning; but if you are so sore that you can only work out one or two times per week it is counter-productive. Make exercise a healthy habit by doing a little every day; you can increase the intensity as you build endurance and strength over time.

Of course, a daily exercise routine is just one factor in the equation for optimum health. You should also enjoy a nutritious and delicious diet, get eight hours of sleep every night, say no habits such as smoking and excessive drinking, and make sure you get the full spectrum of vitamins and minerals that your body needs to look and feel its best.

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McCarthy a Brutal Hire for the Packers!

Sometimes I just don't get it !!!

As offensive coordinator for the san Francisco 49ers last year, Mike McCarthy's offense finished 32nd and dead last in the nfl. How bad was it ??? That offense finished 32nd in passing, 22nd in rushing, and was 30th overal in points going eight games of a sixteen game schedule without an offensive touchdown.

As quarterback coach of the Packers during Ray Rhodes short-lived and ill-fated 1999 regime, McCarthy guided Bret Favre to his second worst season as a professional with the future HOFer throwing 24 pics to just 23 touchdowns. Favre's 74.7 QB rating was was only supraceeded by his 1993 sopomore season rating of 72.2 and this year's train-wreck of 70.9 yet this week Mike McCarthy was brought back to green Bay and hired as the 14th Head Coach in arguably the most storied franchise in nfl history.

The Packers had to know that this was a controversial hire as the McCarthy news conference seemed to be more of a damage control preemptive rather than a celebration of the man that was going to restore tarnished lustre and return green Bay to the promised land.

McCarthy was lauded for his past accomplishments, particularly his work with the Saints spanning 2000-2004. During that time, the Saints established 25 team and 10 individual marks. Joe horn who caught 437 passes for 6289 yards and 45 TD's during McCarthy's tenure. New Orleans led the nfl in points (432) and toucdowns (49) during the 2002 season.

McCarthy's prior work with the Kansas City was also cited. As quarterback coach of the Chiefs between '95-'98, the combo of Gannon, Grbac, and Bono threw an AFC low 52 interceptions over that four year period. Huh ??? Whupdidoo !!!

In his year with Favre, Bret did throw for 4,091 yards but the Packers were just seventh in passing and ninth overall in total offense.

At the press conference it was also brought up that McCarthy had spent most of last year mentoring the leagues first overall draft pick, Alex smith - possibly an inference that Aaron Rodgers would be in good hands if Favre decides to call it a career.

Alex Smith's season by any standards was an unmitigated disaster! Smith's numbers were horrific - 84-165 (50.9%) for 875 yards and a 1/11 TD/INT ratio. Granted, smith had little to work but based on his freshman year, he's well on his way to becoming a bust in the proportions of tony Mandrich and Ryan Leaf.

McCarthy becomes the youngest coach in the nfl, three months younger than john Gruden. He inherits a a young (26.04 years at season end, 3d in NFL) team that is filled with uncertainties like the health of Javon Walker and Ahman green and the return of Brett Favre.

Mike McCarthy was a surprisingly desperate hire from a surprisingly desperate franchise. The Packers had been to the playoffs five of the six years under Mike Sherman and while the talent level of the team has fallen appreciably due primarily to poor drafts, the whole Packer post-season shakeup wreaks of panic!

McCarthy's coaching background:

1987-88, fort Hays State - Graduate Assistant
1989-91, Univ. of Pittsburgh - Quarterbacks
1992, Univ. of Pittsburgh - Wide Receivers
1993-94, Kansas City Chiefs - offensive Assistant/Quality Control
1995-98, Kansas City Chiefs - Quarterbacks
1999, green Bay Packers - Quarterbacks
2000-04, New Orleans Saints - offensive Coordinator
2005, san Francisco 49ers - offensive Coordinator
2006, green Bay Packers - Head Coach

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