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Indoor Cycling Instructor Dictionary of Intervals: sprint
Position or interval: The sprint is a position.
What it is: A maximal intensity interval in the saddle.
Cadence: The cadence is usually between 85-110rpm.
Intensity: The sprint is maximal intensity.
Length: Because the sprint requires the CP energy system, this intense effort can only be sustained for several seconds - 10-15 seconds is perfect.
When to use: only when riders are properly warmed up - and best in the second half of the session. Use it in sets of 3-6.
What it does: Trains the CP system and builds power.
Key teaching points:
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by Angela Reed-Fox RN
Managing dizziness in the indoor cycling studio
It's not just new riders that might feel a bit faint or dizzy when doing new indoor cycling workouts - if riders are increasing the intensity of their classes, they may experience the same symptoms. Here I'll explain why - and how to avoid the drama!
Feeling faint during or after a class is not hugely rare. If riders are new to vigorous workouts, or they've recently upped the intensity of their workouts they're more at risk of feeling dizzy or faint during or after your class.
There are two main reasons why you might feel dizzy. One is low blood sugar, and the other is low blood pressure.
Low blood sugar
Your facility should receive agreement that riders with diabetes will let you know before starting their class with you. Such riders are generally well aware of how to deal with 'hypos', and will come prepared. Generally it's the medication that causes the hypo, not the condition. If you're unsure, check with your venue that they're gathering this information from new riders.
For riders who are not diabetic, low blood sugar is less likely to cause a problem. However, with sudden intense exercise, particularly at high resistance, this can see blood sugar levels dropping lower than normal. This can cause dizziness or faintness.
Low blood pressure
It’s often the case that people (mostly women) with low blood pressure can feel dizzy during or after exercise. This is because one of the way the body maintains an even temperature is by dilating the blood vessels to cool down - this is why your skin goes red when you're hot. Also when you're working hard at a high intensity, your muscles are also demanding a greater blood supply. This is perfectly natural, and usually OK - only if you usually have low blood pressure, in this condition, less of your blood is supplying your brain with oxygen, which makes you feel dizzy or faint.
How to help and advise riders
The gold standard is to provide written guidance from your venue. The following advice is useful:
How venues can prepare:
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