Mcdon Treadmill Experiment

Introduction: In this experiment, cardiovascular fitness is being determined by measuring how long it takes for the test subjects' to return to their resting heart rate. Cardiovascular fitness is the ability to "transport and use oxygen while exercising" (Dale 2015). Cardiovascular fitness utilizes the "heart, lungs, muscles, and blood working together" while exercising (Dale 2015). It is also how well your body can last during moderate to high intensity cardio for long periods of time (Waehner 2016). The hypothesis is that people who exercise for three or more days will return to their resting heart rate much faster than people who only exercise for less than three days.

The Wingate Anaerobic Test is used to evaluate anaerobic cycling performance. This study was undertaken to determine whether there is a relationship between peak power and fatigue index for endurance (n=9) vs power (n=4) athletes. A total of 13 subjects, including 8 males and 5 females, were included in the study. The subjects were divided into sporting types, such as endurance and power. Data collected from the Wingate test included peak power (W), mean power (W), time to peak (S), minimum power (W) and fatigue index (%). When the peak power and fatigue index were considered together for endurance athletes, a significant relationship

Four interval times (PR, RT, TP and RR) measured in seconds were recorded both with the subject at rest and after the subject had exercised. The PR and RT intervals remained virtually unchanged with the PR intervals remaining the same both before and after exercise with an interval time of 0.15 seconds, and the RT interval increase by 0.01 seconds from 0.37 at rest to 0.38 seconds after exercise. More substantial changes were noted in TP and RR intervals. The TP interval decreasing from 0.32 seconds at rest to just 0.08 seconds after exercise, a decrease of 0.24 seconds (just 25% of the resting 0.32 seconds). The RR interval decreased from 0.84 seconds at rest to 0.61 seconds seconds after exercise, a decrease of 0.23 seconds

In the study conducted by Edward H Robinson and Jeffrey R Stout, the use of one weekly interval session at vVO₂max led to a 3% improvement in vVO₂max and a 6% improvement in running(4).The interval duration was set to be 50% of the individual time that the athletes could sustain vVO₂max (the time that VO₂max can be sustained is called tlimvVO₂max or Tmax) which averaged around 3 minutes. The optimum length of VO₂max intervals is not clear although positive results have been found with a range of different interval lengths from 30 seconds up to 3-4

The Balke treadmill test was used to estimate your maximum VO2 measurement, and to determine your aerobic fitness percentile. Based on your time and the chart corresponding to your age on page ninety-three of the ACSM guidelines book, your VO2 maximum would be about nineteen and a half milliliters per kilogram of body weight per minute of oxygen [1]. This is the

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.

The main objective of this study was to determine if a one-day per week aerobic interval training program had an effect on maximal aerobic capacity in women’s collegiate soccer athletes prior to and immediately after a competitive season. The authors state that the one-day running program was adapted from previous studies that showed to improve aerobic capacity in soccer athletes. The athletes were tested for maximal oxygen consumption using an incremental treadmill test.

The results of this test show that it provides a valid test to estimate aerobic capacity and shows there is a small measurement of error. A polar heart rate monitor was used to measure the heart rate with a step of 30cm in height with a metronome with a beat at 15 steps, per minute and increased by 5 steps every minute for 5 stages or until 80% of the maximum estimated heart rate was reached. The results demonstrated that the Chester Step technique is a valid predictor of aerobic capacity in males and females from a wide range of ages and fitness levels.

The title of the article, Continuous handrail support, oxygen uptake, and heart rate in women during submaximal step treadmill exercise, clearly provides information as to the exact issues that will be measured in the study itself. Some titles can be misleading, but the article addressed here provided clarity on issues that could be quantified. That is a very important step, because having a clear and readily understood title on an article makes that article easier to read and more likely to be used for its intended purpose. Articles with titles that are not clear are often overlooked by others who are doing research into a particular area of study, because the title of the article does not provide the reader with enough of an understanding to make a determination as to whether that article would be beneficial. While that is not always the case, it happens quite frequently and can be avoided.

The experiment began by taking the height and weight of all of the participants. Those taking part performed two trials on separate days. For the first trial, participants consumed water at leisure throughout the day, then at 3:00 pm, preceded to the gym to begin the experiment. Before exercising, the first participant placed the Suunto brand heart monitor under their shirt on their breastbone and fastening the display watch on their right wrist. The participant’s heart rate was recorded before beginning the exercise. The wattage of the Precor RBK 835 Recumbent exercise bike was then set to 80 watts and the participant rides the stationary bike at an intensity that maintains the wattage range between 80 and 90 watts. After five minutes of riding,

Step one of the procedure includes participants recording the measurements of their; weight, height, age, sex, resting heart rate and activity levels before doing anything else. Step two of the procedure involves sterilisation of equipment, the area and the participants, equipment that will be sterilised is the bikes, and nobody other than the participant is to touch the bike after it has been cleaned. Step three of the procedure involves the participant testing their resting blood lactate levels and their resting blood glucose level. Step four is the participant beginning a five minute warm up on the bike with no weights, step five is beginning the first three minute interval with no weight. For step six at the second minute of each three minute interval blood must be taken from the participant to carry out the readings, the blood lactate must be tested before the blood glucose, the rider must not stop during this. For step seven at the end of the three minutes the weight should be increased by 0.5kg. Step eight involves this process being repeated five times. For step nine participants must cool down on the treadmills after they are finished on the bike and should be supervised to ensure

The two subjects were put on a cycle ergometer for a total of 20 minutes. Three minutes of rest, 12 minutes of steady state exercise and five minutes of recovery. Heart rate, percent of oxygen expired and volume inspired were recorded every minute during the length of the experiment. After which, calculations were made to find out oxygen debt, net oxygen cost, net energy cost, and mechanical efficiency of bicycle ergometry.

Most endurance trained athletes and participants in a group exercise class monitor their exercise intensity through palpation of the carotid or radial artery. Heart rate (HR) is used as an indictor of exercise intensity because of the linear relation between HR and oxygen consumption (Cotton & Dill, 1935). The researchers of this study have decided to use pule rate palpation to monitor exercise intensity because the procedure is described in many textbooks and it is common in various exercise settings (American Collage of Sports Medicine, 2000). However most chronic exercisers have a rapid recovery of HR following the cessation of exercise, and therefore carotid or radial palpation could underestimate exercise HR. Also, endurance trained individuals have a greater arterial baroreflex sensitivity and are more responsive to carotid palpation. Therefore, the palpation of the carotid artery may unload arterial baroreceptors and elicit feedback reductions in HR (Heidorn & McNamera, 1956).

I predict that during exercise the heart and respiratory rate (RR) will increase depending on the intensity of exercise and the resting rates will be restored soon after exercise has stopped. I believe that the changes are caused by the increased need for oxygen and energy in muscles as they have to contract faster during exercise. When the exercise is finished the heart and ventilation rates will gradually decrease back to the resting rates as the muscles’ need for oxygen and energy will be smaller than during exercise.

Arterial oxygen content does not decrease at exercise intensities <75% of VO2max (49). VO2max is a measure of the ability of working muscles to oxidise metabolic substrates, with eventually a plateau in oxygen uptake occurring