The purpose of this study was to examine the effect of cold water immersion(CWI) on the rate of sweat-loss from the body. Ten participants
(mean age 30.5±5.54 years; height1.84.1±5.10; body mass 76.62± 9.48 kg, Max Vo2. 63.28 ± 6.27 ml/kg/dk) completed two testingsessions
separated by one week. Each trial consisted of two bouts of a 30-min running on hot environment (30.90°±1.28°C, 72.6±5.68%
relative humidity). The two bouts were separated by 22 min of seated recovery. During the 22 min, the athlete was immersed in cold
water (mean 15±1°C (5th –17th minute), whereas in the second test he was not immersion to cold water (non-CWI) and the decision of
exposure was made randomly. The average rate-of-sweat lost for athletes after the second half in the CWI test (2833.97±530.64gr) was
less than that of the non-CWI test (3239.97 ± 580, 26 gr) during a 60-min running in the track. The water volume consumed during the
test was highly variable (649.97± 328.81 gr; 653.97±285.49 gr) but there was a strong relationship between the rate of sweat loss and
water volume consumed for non- CWI, while there was no strong relationship on CWI test. Total drink volume consumed during the
both was the same, but a sweat rate for CWI was less than non-CWI. The results indicate that running in hot and humid environment
the body loss fluids. This can cause a sodium deficit among many athletes. The researcher recommends to use cold water immersion
to improve exercise-performance in high temperature and humidity
Hasan Joudallah, et al, 2017. The Effect of Cold Water Immersion on the Rate of
Sweat-Loss from the Body. Swedish Journal of Scientific Research.; 4(6):1-4.
The study was conducted on a sample of (20) male obese students with ages ranging between 18 and 20 years old. The study started on
13/8/2013 and continued till 6/1/2014. The aim of the study is to determine the effects of physical activities in applied lessons on weight
and some physical variables for obese students. After conducting appropriate statistical analysis of the study data, presenting, analyzing
and discussing results, the researcher concluded that physical activities used in the applied lessons (physical preparation – physical
training – football – basketball) have a significant effect on physical tests (body weight - fitness - long jump - arm pressure - sitting from
the back). The physical activities used in the applied lessons did not have a significant effect on both physical tests (flexibility – speed).
The researcher recommended that first year obese students should be cared for and attempting to reduce their weights by paying
attention to physical activities provided in the applied lessons because of their role in raising their physical efficiency and prevent them
from catching many diseases in the future.
Dr. Mahmoud Soliman Azab, 2017. The Effect of Physical Activities in Applied Lessons
on Weight and Some Physical Variables for Obese
Students. Swedish Journal of Scientific Research.; 4(6):5-9.
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