Rehydration and recovery after exercise

Maughan, Ronald J.; Shirreffs, Susan M.

doi:10.1016/j.scispo.2004.05.003

Cited by 24 publications

(25 citation statements)

References 18 publications

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“…Rehydration after exercise requires not only replacement of volume losses, but also replacement of the electrolytes, primarily sodium, lost in the sweat. Sweat composition not only varies among individuals but also varies with time during exercise, and is further influenced by the state of acclimatization [4]. The onset of significant dehydration is preventable, or at least modifiable, when hydration protocols are followed to assure all athletes the most productive and the safest athletic experience [17].…”

Section: Discussionmentioning

confidence: 99%

“…It is well established that performance of exercise in a dehydrated state is impaired, and that both high-intensity and endurance activities are affected. There is also an increased risk of heat illness in individuals who begin exercise in a dehydrated state [4]. The concentration of electrolytes in sweat varies between individuals and therefore it would be of great advantage to develop personalized rehydration strategies depending on fluid and electrolyte losses.…”

Section: Introductionmentioning

confidence: 99%

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Textile sensors to measure sweat pH and sweat-rate during exercise

Coyle¹,

Morris²,

Lau³

et al. 2009

Proceedings of the 3d International ICST Conference on Pervasive Computing Technologies for Healthcare

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Abstract-Sweat analysis can provide a valuable insight into a person's well-being. Here we present wearable textile-based sensors that can provide real-time information regarding sweat activity. A pH sensitive dye incorporated into a fabric fluidic system is used to determine sweat pH. To detect the onset of sweat activity a sweat rate sensor is incorporated into a textile substrate. The sensors are integrated into a waistband and controlled by a central unit with wireless connectivity. The use of such sensors for sweat analysis may provide valuable physiological information for applications in sports performance and also in healthcare.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Textile sensors to measure sweat pH and sweat-rate during exercise

Coyle¹,

Morris²,

Lau³

et al. 2009

Proceedings of the 3d International ICST Conference on Pervasive Computing Technologies for Healthcare

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“…Dehydration for example can manifest itself as an increased sodium concentrations in sweat during exercise, so the possibility of monitoring this quantitatively in real-time is an appealing prospect 1 . Currently, for studies involving athletic performance, instead of directly analysing specific electrolyte concentrations, available fluid volumes are usually inferred only from body weight loss and urine output volumes over a set period of exercise, with electrolyte concentrations only measured separately and retrospectively [2][3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

A wearable electrochemical sensor for the real-time measurement of sweat sodium concentration

Schazmann¹,

et al. 2010

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We report a new easier method for the quantitative analysis of sodium in human sweat. To the best of our knowledge this is the first time this has been done successfully in a real-time manner. We consolidate sweat stimulation, collection and analysis functions into a single method. This temporal data opens up new possibilities in the study of human physiology, broadly applicable from assessing athletic performance and hydration levels to monitoring Cystic Fibrosis (CF) sufferers. Our compact Sodium Sensor Belt (SSB) consists of a sodium selective Ion Selective Electrode (ISE) integrated into a platform that can be interfaced with the human body during exercise. No skin cleaning regime or sweat storage technology is required as samples is continually wicked from skin to a sensing surface and on to a waste terminal via a fabric pump. After an initial equilibration period, a sodium plateau concentration was reached and monitored continuously. Atomic Absorption Spectroscopy (AAS) was used as a refe rence method, confirming accuracy. The plateau concentrations observed fell within expected literature ranges, further confirming accuracy. Daily calibration 2 repeatability (n=4) was ±3.0% RSD and over a three month period reproducibility was ±12.1% RSD (n=56). As a further application, we attempted to monitor the sweat of Cystic Fibrosis (CF) sufferers using the same device. We observed high sodium concentrations symptomatic of CF (~60mM Na + ) for 2 CF patients, with no conclusive results for the remaining patients due to their limited exercising capability. The real-time monitoring of hydration levels during physical exercise for health and performance purposes is a particularly promising application for the SSB at present.

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“…Nitekim sıcak hava ve nem oranının yüksek olduğu bir dönemde gerçekleştirilen 1984 Los Angles Olimpiyat Oyunlarında maraton koşan Alberto Salazar'ın saatteki ter kaybı 3.7 L olarak bildirilmiştir (21). Yapılan bir araştırmada, sıcak çevre ortamında yapılan şiddetli bir egzersiz süresince saatteki ter kaybı 2-3 L'yi bulurken, 10ºC çevre sıcaklığı altında 90 dk süren bir oyundaki ter kaybının 2 L kadar yüksek olduğu belirtilmiştir (22). Bir diğer araştırmada, 40ºC çevre sıcaklığında uzun süreli orta şiddette yapılan egzersiz ile 20ºC çevre sıcaklığında yapılan bir egzersiz çalışması karşılaştırıldığında daha sıcak ortamda yapılan egzersizde karbonhidrat oksidasyonunun arttığı ve kas glikojenindeki düşüşün daha belirgin olduğu kanıtlanmıştır (23).…”

Section: Egzersi̇zde Vücut Sivi -Elektroli̇t Dengesi̇ndeki̇ Deği̇şi̇mlerunclassified

“…Sadece saf su tüketimi osmolalitiyi düşürür; bu durum sıvı alımının sürdürülmesini sınırlandırır ve idrar çıkışını hafifçe yükseltir (37). Sıvı alımı ile ilgili yapılan birkaç araştırma, vücutta elektrolitlerin yerine konmasının, özellikle sodyumun, sıvının vücutta tutulması ve bunun sonucunda da sıvı dengesinin sağlanmasında en etkin yol olduğunu ortaya koymuştur (21,22,41). Bu nedenle, antrenman sonrası, toparlanma içeceğinin sodyum ilavesiyle yaklaşık 50 mmol/L düzeyinde olmasının vücutta sıvının maksimum düzeyde tutulumunda etkili olduğu belirtilmiştir (37,41).…”

Section: Kaybedilen Sıvının Yerine Konmasıunclassified

Sporcularda Dehi̇drasyonun Performans Üzeri̇ne Etki̇leri̇ Ve Vücut Hi̇drasyon Düzeyi̇ni̇n İzlenmesi̇

Demiṙkan¹,

Koz²,

Kutlu³

2010

Ankara Üniversitesi Beden Eğitimi Ve Spor Yüksekokulu SPORMETRE Beden Eğitimi Ve Spor Bilimleri Dergisi

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ÖZETDehidrasyon, sporcularda sadece atletik performansı düşürmekle kalmaz bununla birlikte ciddi derecede sağlık sorunlarına hatta ölümlere bile yol açabilmektedir. Özellikle uzun süreli dayanıklılık gerektiren yarışma ve antrenman ortamlarında sporcuların hidrasyon düzeyinin takip edilmesi ve uygun hidrasyon düzeyinin sağlanması performansın maksimum düzeye çıkarılmasında önem oluşturmaktadır. Bu derleme çalışmasında, yapılan araştırmalar doğrultusunda, sıvı kaybının performans üzerindeki olumsuz etkileri ve hidrasyon düzeyinin tespit edilmesine yönelik olarak kullanımı kolay, pratik ve aynı zamanda güvenilir yöntemler hakkında bilgi verilmesi amaçlanmıştır. Vücut hidrasyon düzeyinin belirlenmesine yönelik çok sayıda yöntem kullanılmaktadır. Hidrasyon düzeyinin belirlenmesinde kullanılan mükemmel bir yöntem olmamasına rağmen vücut ağırlık değişimleri, bazı kan değerleri, idrar parametreleri sıklıkla kullanılan yöntemler arasındadır. Vücut ağırlığı değişimi ve idrar testleri, kullanımı kolay ve girişimsel olmayan (nonivasive) yöntemler olması sebebiyle spor ortamlarında akut ve kronik hidrasyon düzeyinin belirlenmesinde daha yaygın olarak kullanılabilecek yöntemler olarak önerilmektedir.Anahtar Kelimeler: Vücut kompozisyonu, Vücut ağırlığı, Dehidrasyon, İdrar testi, Sportif performans THE EFFECTS OF DEHYDRATION ON ATHLETIC PERFORMANCE AND MONITORING HYDRATION LEVELS ABSTRACTDehydration not only reduced athletic performance, but also may lead to severe health problems and death. Especially, for athletes, monitoring hydration and ensuring proper hydration levels have significant effect in maximizing performance requiring long term durability training and competition environments. The purpose of this review is to provide information about negative effects of water loss on performance, and to determine the level of hydration with an easy to use, practical and reliable methods also had been known by athletes and coaches by previous studies. A lot of methods are used to determine the level of body hydration. Although there is no gold standard for determining the level of body hydration changes, body weight changes, some blood values and urine parameters are the commonly used methods. Because using body weight change and urine test methods are easy and noninvasive, they are recommended for determining the level of acute and chronic hydration as the more commonly used methods in the sport settings.

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Rehydration and recovery after exercise

Cited by 24 publications

References 18 publications

Textile sensors to measure sweat pH and sweat-rate during exercise

Textile sensors to measure sweat pH and sweat-rate during exercise

A wearable electrochemical sensor for the real-time measurement of sweat sodium concentration

Sporcularda Dehi̇drasyonun Performans Üzeri̇ne Etki̇leri̇ Ve Vücut Hi̇drasyon Düzeyi̇ni̇n İzlenmesi̇

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