PE 160
4/24/2018
HIIT Training Topic Paper
Aynslie Skye Glendenning
High-intensity interval training has been gaining more recognition as a way to boost weight loss and improve muscular, among other benefits. But what exactly is it? What is the science behind why it’s so effective? And what are the risks associated? (Kravitz, Ph.D., L. (2014). ACSM Information on High-Intensity Interval Training.)
According to the American College of Sports Medicine, High-Intensity Interval Training (HIIT) is an exercise done with periods of high intensity, these periods are done repeatedly, with small recovery breaks. These types of workouts can be done in as little as 20 minutes, up to an hour. The high-intensity intervals can be done for 5 seconds,
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In this time period, the body uses more energy than normal because it is trying to “restore” everything back to the level it was, before exercise. Because EPOC is more significant after HIIT workouts, it allows the body to burn more calories. (Kravitz, Ph.D., L. (2014). ACSM Information on High-Intensity Interval Training.)
Recently, a study done by Hakan Westerblad explored why HIIT training is effective in terms of building muscular endurance. He and his team analyzed muscle samples from participants engaging in High-Intensity Interval Training. The participants “…alternated between pedaling a stationary bike for 30 seconds at top intensity and resting for three minutes six times.” (Park, A. (2015, November 03). Interval Training: Scientists Explain Why It Works.) After analyzing the muscle biopsies, Hakan and his team concluded that because of the HITT exercise, changes in the muscle occurred at a cellular level. He says, “When stressed by the extreme exercise, certain chemical channels in the muscle cells that regulate calcium changes in the cells broke down. What we found was a breakdown of these channels that was totally unexpected.” (Park, A. 2015, November 03. Interval Training: Scientists Explain Why It
In this assignment I will be reviewing the different effects of exercise on the body system including the acute and long term using the pre-exercise, exercise and post-exercise physiological data which I collected based on interval and continuous training method. I will also be including the advantages and disadvantages of these, also the participants’ strengths and areas where they can improve on.
The team at Bombers CrossFit knows what it’s like to get stuck in a workout rut: you spend long stretches of time on the same machine and after a while, you stop seeing results. This Dayton, OH-based CrossFit location has a solution for that dilemma: interval training.
This conclusion was supported by the biological background. The greater amount of previous exercise would cause higher release of lactic acid, inorganic phosphate and also would increase the likelihood of micro damage to the muscle fibres. Thus, greater the amount of previous exercise could lead to greater muscle fatigue which affected the rate of contraction of muscle fibres. Consequently, lower number of cycles was counted within a given time limit, as the
The purpose of this study was to compare the effectiveness of continuous moderate intensity exercise training (CMIET) alone V. continuous moderate intensity exercise training combined with a single weekly bought of high intensity interval training (HIIT). The 12 week study focused on 29 total subjects at an average age of 36.9 with a standard deviation of +/- 6.9 years. The subjects were all at moderate risk for cardiovascular disease meaning all participants met at least one or more of the following positive CVD risk factors: dyslipidaemia, hypertension, impaired fasting, blood glucose, and/or obesity. All training was completed using a treadmill and cycle ergometer. The study consisted of three groups. The first group completed 4 weekly sessions
The HIIT method is an excellent way to increase a fighters endurance which focuses on the aerobic capacity and includes such activities as running, super-set weight training, treadmill work. These are just a small example of the best ways to train the aerboc energy system in which they need to be performed in a range of 120 to 150 BPM (beats per minute) and will build endurance while lasting from 30 to 120 minutes. The aerobic energy system is one that breaks down the fatty tissue in the body and pumps glycogen into the muscles. This type of energy system is known as slow burning and can last up to 1 to 2 hours. One of the best ways to train the aerobic energy system is to go at a
It was hypothesized that intermittent exercise bouts are more effective than moderate continuous training, because participants will be able to exercise long and therefore, will have a greater work output. The main findings from this lab can be categorized into three sections, heart rate during exercise bout refer to figure 1. Total work over exercise type, refer to figure 2. Time to fatigue over exercise type, refer to figure 3.
It is important to understand muscle fatigue because it affects all people and plays a major roll for people whose lives revolve around physical activity. The purpose of this experiment was to determine how muscle fatigue affects the overall muscle performance of an individual and to gain insight on the effects muscle fatigue has on reaction time as well as fine motor skills. We hypothesized if muscle fatigue increases by increasing the number of muscle contractions in a certain period of time then the reaction time of the muscles will also increase because the muscles are not receiving enough oxygen to perform optimally. We also hypothesized that if the number of muscle contractions increases then the muscle's fine motor skills will decrease because the muscles are not able to get enough oxygen to
We’ve all gone through this feeling of exhaustion known as exercise. It can tire us out, yet leave a rewarding, kind of paradoxical feeling of energy.
Want to get leaner, faster, and stronger? Looking for the best way to maximize your workouts? Then you should try HIIT training. This acronym stands for high intensity interval training, which is one of the most effective workouts available today. It's the perfect way to burn fat and boost your performance while preserving lean muscle.
HIITs are high intensity interval training techniques that alternate short bursts of maximum exercise efforts followed by a short, timed rest period. This type of cardio training gets your heart rate up quickly and keeps it up for 15-30 minutes. The benefits to HIIT are numerous and are easily incorporated into your normal exercise routine.
Although low-intensity is generally known to produce better endurance, high-intensity interval training does as well. HIIT workouts require a higher oxygen intake and individuals are performing at 70 to 90 percent of maximum heart rate which requires more oxygen intake during and after the workout. “A high-intensity workout increases the body’s need for oxygen during the effort and creates an oxygen shortage, causing your body to ask for more oxygen during recovery” (Schlinger) stated Eric Salvador who has a National Academy of Sports Medicine (NASM) Certification and a National Strength and Conditioning Association (NSCA) Certification. Therefore, overall aerobic capacity can increase at a faster rate than it would with low-intensity endurance
HIIT exercises like CrossFit involve alternating between vary vigorous exercises and periods of rest and recovery. Research studies have taken a look at various HIIT protocols, each involving different intensity levels and durations of these levels as well as the rest periods. Suffice it to say, trying to compare different HIIT workouts can prove quite challenging. But what scientists can readily determine is that the inherent “on-off” pattern of HIIT protocols allows individuals to give it their all during the intense part because they have the ability to take much-needed breaks. For this reason, HIIT programs are considered ideal for individuals who are unfit or unaccustomed to vigorous physical activity.
The benefits of a good interval training program are widely supported these days, in research and in everyday life. Stronger muscles, a more efficient cardiovascular system, and a leaner, more toned physique are just some of the results that have propelled interval training into style, even above traditional steady-state cardio sessions. Part of the reason this method of exercise works so well is that it forces your body to adapt to much harsher stimuli than traditional exercise does by pushing you into an anaerobic state. There is no doubt that brief, intense bouts of anaerobic training are enormously beneficial to the seasoned exerciser, but to a beginner, they can be painful
For people who want to lose weight when they exercise they need to take a completely different approach. Instead of doing high-intensity workout for short periods of time, they need to do the exact opposite. Brian Parr from the Department of Exercise and Sports Science at the University of South Carolina says:
Change up your old steady state cardio regimen with High Intensity Interval Training (HIIT). HIIT can get you twice as fit and burn twice as many calories in half the time! It will definitely bring results and you can get an effective workout in as little as 15 minutes.