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Methods - exercise part 1

Here is the end of the introduction to an article by Wiles, J. D., Coleman, D., Tegerdine, M. and Swaine, I. L. (2006) The effects of caffeine ingestion on performance time, speed and power during a laboratory-based 1 km cycling time-trial, Journal of Sports Sciences, 24 (11):1165 -1171. This paragraph shows that the need for the study and the aim are clearly established as shown in the highlighted text.

“While there is some evidence of improved performance after caffeine ingestion in runners and rowers when performing exercise of about 2–7min duration, only Collomp et al. (1992) have shown improved performance during exercise of ~60 s duration. As far as we are aware, there are no published reports of the effects of caffeine on performance, speed and power during cycling of 60 s duration in trained cyclists, especially when using cycling-specific ergometry such as with the “power crank” ergometer (Schoberer Rad Meßtechnik, Jülich, Germany). The aim of this study was to assess the effects of caffeine ingestion on cycling performance time, speed and power during a time-trial of about 60 s duration (1 km) in a laboratory setting.”

Here is the first section of the Methods of the above paper. As you can see, the questions in the middle column are not critical. They are questions you might ask if you were only concerned with understanding content.

Rewrite the non-critical questions to be more critical in the space provided. When you have finished click SUBMIT and compare your questions with the examples suggested.

Methods: Experimental procedure Non-critical questions Type your critical questions here
Eight trained male cyclists (mean ±s: age 32 ±6 years, height 1.79 ± 0.06m, body mass 73.6 ±6.2 kg) volunteered to participate in the study. All participants were involved in competitive road race cycling (British Cycling Category 1–3, mean 16.1 km personal best = 21min 54 s), which is considered an intermittent form of exercise (Burke, Cerny, Costill, & Fink, 1977). The cyclists had participated in regular bicycle training, a proportion of which involved high-intensity sprint work, for at least 4 years before the study. The experimental procedures of the study, together with the possible risks, were explained to each cyclist before participation. All cyclists completed a medical history screening questionnaire and gave their written informed consent to participate. The study was approved by the university ethics committee.

1. How many cyclists were there?

2. What were the participants’ characteristics?

3. What was the sampling procedure?

4. What kind of cycling background did the participants have?


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