to the point of sickness - Personal Trainer Community - Forum

[kettlebell king]

Hi all,
I was just looking for some knowledge really - I often train myself to the limit- especially during plyometric circuits, and sometimes my clients too :twisted: or shall we say victims! I was just wondering where you reach that point where you feel you may hurl- and sometimes I have - I was wondering does anyone know what causes the the feeling of sickness?

[fitwriter]

That's an interesting question. I suspect it may have something to do with either lactic acid build-up or breathing too shallow during the workout, maybe both. Or maybe neither. :mrgreen: I still have a long way to go when it comes to learning this stuff. I'm curious what others say about this.

[kaiserS]

I blogged about this "hurling" issue last year and gave some hints on how to prevent it - I didn't research the exact physiological causes for the phenomena, but you guys might still find it useful:
http://gohardfitness.com/personal-tr...to-prevent-it/

[C Lenart]

Hey guys..

I got this stuff regarding nausea and vomiting from MedicineNet.com, which I believe is a reputable source of medical information. I subscribe to their weekly journal which is a good source for info about dealing with patients/clients with pre-existing coronary and diabetes related conditions.

Anyhow, here's some info regarding the causes of nausea and vomiting.

Nausea and Vomiting (cont.)

What causes nausea or vomiting?


Acute gastritis
Central causes Association with illness
Medications and medical treatments
Bowel obstruction
Pregnancy

Headache: especially migraine, is commonly associated with nausea and vomiting.


Inner ear: Motion sickness, labyrinthitis, benign postural vertigo, or Meniere's disease


Head injury: Any illness or injury that increases the pressure inside the skull can cause vomiting. This rise in intracranial pressure may be due to brain swelling from trauma (for example, concussion or head trauma), infection (meningitis or encephalitis), tumor, or abnormal electrolyte and water balance in the bloodstream.

NOTE: In the case mentioned above, the poster mentions working to the point of exhaustion. Electrolytes particularily, sodium, chloride, potassium, and bi-carbonate can be depleted through a heavy workout as well as water


Noxious stimulus: Certain smells or sounds can cause centrally mediated nausea and vomiting. Whether it is the pain of a broken bone or the emotional shock of observing an event, vasovagal events can cause significant symptoms. In a vasovagal episode, the vagus nerve (one of the nerves that helps control basic body functions like heart rate, breathing, and blood pressure) is overly stimulated and cause the heart rate to slow and blood vessels to dilate. This decreases the blood flow to the brain and causes fainting, known as a syncopal episode.


Heat related illness: For example heat exhaustion, extreme sunburn, or dehydration

Hope this is good info.

Curt
ACSM Health/Fitness Instructor

[kettlebell king]

im normally well hydrated and my glucose levels before and during are maintained so I don't think its that and I'm breathing deeply and hard- cheers for the extra bits tho if any one knows the physiological process though please post!