Heat Stress and Tennis

HEAT STRESS AND TENNIS PERFORMANCE 

 – Written by Julien D. Périard, Qatar

Extremely hot conditions took over Rod Laver Arena and the rest of the tennis grounds in Melbourne Park during the 2014 Australian Open.  After days of sweltering hot weather and temperatures reaching 43ºC, play was suspended for several hours when organisers invoked the Extreme Heat Policy.

The stoppage in play, however, occurred only after a plastic bottle had reportedly started melting on court, a ball boy and a male player fainted, a female player experienced cramping and vomiting, and several notable players expressed their concerns regarding the safety of continuing to compete in such conditions.

Unfortunately, the sequence of events that played out on the international stage in Australia is mirrored worldwide each year in numerous lower-profile events, highlighting the challenges and consequences of competing under severe heat stress. In effect, the development of hyperthermia during exercise in the heat has been shown to impair endurance1 and intermittent exercise performance (e.g. soccer)2,3. These performance impairments occur in conjunction with elevations in physiological and perceptual strain, relative to when exercise is performed in cooler conditions. During the development of hyperthermia, progressive dehydration can also occur if fluids are not sufficiently consumed, which can in turn exacerbate the rise in thermal strain.

MATCH-PLAY TENNIS, HEAT STRESS AND THERMOREGULATION

The rise in body core temperature during exercise is mediated by relative intensity/workload and the prevailing environmental conditions. In conditions within the prescriptive zone – ambient temperatures in which deep body core temperature remains stable during exercise7 – core temperature increases safely up to 38.3°C during match-play tennis8-10. This suggests that in temperate environments, both autonomic (e.g. sweating) and behavioural (e.g. adjustments in play and recovery) thermoregulation successfully regulate core temperature. However, in hot ambient conditions core temperatures above 39.5ºC have been reported during play8,11-13. The development of this thermal strain, along with the concomitant increase in physiological and perceptual strain (Figures 1 and 2), is characterised by a reduction in effective playing time10,13, which is the percentage of total match time spent with the ball in play. This reduction stems from both a decrease in point duration10 and/or an increase in time between points (e.g. Table 1)13. Accordingly, these adjustments in match-play characteristics in hot ambient conditions have been suggested to represent behavioural strategies adopted to minimise or offset the sensation of environmental conditions being rated as difficult. In essence, these adjustments allow players a certain measure of self-regulation with regard to the rate of heat production in environmental conditions that contribute to increased core temperature during exercise.

(link to full article copied below)

https://www.aspetar.com/journal/viewarticle.aspx?id=189#.YH5DFpNKiAy

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Cooling Gloves
Charlie Stapleton
Awesome products!!!

I purchased the gloves because of multiple carpal tunnel surgeries. I especially use them after playing golf and garden work. The gloves are doing what I expected them to do. Great product.

Unbelievable product.

After having a heat stroke 18 years ago I have been extremely susceptible to heat illness. I played four days of golf in Texas with 95 to 100 degrees and the cooling vest and head bands made me feel the best in the heat since before my heat stroke! Great products and service

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CoolSport Vestino
Joyce Haraway
Keeping Cool on the Golf Course

If heat and humidity is keeping you away from your favorite round of golf consider trying the Oro Vestito to keep you cool. My husband who suffers from the heat is able to keep cool with it in 90 degree weather. In addition the Vestito vest does not inhibit his golf swing in any way. A suggestion would be to purchase two cooling packs as one’s cooling effect lasts for approximately nine holes. A wonderful invention!!

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CoolCuffs
Eva P.
Cool Cuffs Really Work

I really like the redesigned cool cuffs. The fabric has a nice stretch and the cool packs stay securely inside the cuff pocket while wearing. I wore them last week on a very hot day as I gardened outside. The frozen packs lasted about an hour before the cooling effect rapidly decreased. That was perfect for me, as I hadn't planned on gardening for more than an hour anyway. Since the cuffs come with an extra set of cooling packs, I could have easily popped a new frozen set in and continued working. I threw them in the washer and let them air dry to ensure the elastic component of the fabric would not be damaged by heat drying. They came out like new.

I give these a five-star rating and I think buyers will love the improved design. The only negative for me is that I have very small wrists (5 1/4"). While the cuffs were not loose and made good contact with my skin, the fit was more snug when I first put them on. As the cool packs began to melt, the cuffs felt just a little bit looser, but they still maintained their cooling effect.

Thank you Oro for your quality products!

So Happy To Have Found This!

I suffer from a condition that causes me to overheat. This cooling vest is a lifesaver. I wore it to the State Fair and did not overheat once, even when in direct sunlight, with an outdoor temp of 80 degrees Fahrenheit. Now if only I could sleep in it!