It does not make sense - always the player who lost the match will be more tired.

Not Necessary

Dear Raul,

From my opinion, you should measure before and after match some biomedical parameters, such as: foot pressure (more exactly the movement of the center of pressure), blood pressure, ekg, emg, temperature, lung capacity, and maybe it could come in handy a written test in which they can expose their own considerations regarding their fatigue. (ex. how fatigue are you on a scale from 1 to 10 and so on). Even though this might be considered subjective, it can be used as a criteria.

Fatigue is a results of more than physical movement, it consist of emotions, stress and so on. It is very complex.

Please let me know of your results and if it was helpful?!

@Nelish I need to isolate variables.

@Ionel the hypothesis is that COP (even plantar pattern) should change after match and could originate injuries, but in order to compare information, I think I need to compare how importatn fatigue is in each player to match up with plantar pressure. EMG is impossible for our lab, Borg test (scale 1 to 10) is an extra test I will do, but you have spoken about blood pressure and temperature. Please, could you explain more information about how with this 2 variables I could know or scale the fatigue of the players?

Thanks' mates.

Hi, we did some studies on  similar topics.

sincerely,

LG

https://www.researchgate.net/publication/225086190_Effect_of_Playing_Surface_Properties_on_Neuromuscular_Fatigue_in_Tennis?ev=prf_pub

https://www.researchgate.net/publication/260610856_Effects_of_String_Stiffness_on_Muscle_Fatigue_After_a_Simulated_Tennis_Match

Article Effect of Playing Surface Properties on Neuromuscular Fatigu...

Article Effects of String Stiffness on Muscle Fatigue After a Simula...

Hola Raul,

Olivier Girard has done a lot of work in this direction.

See: https://www.researchgate.net/profile/Olivier_Girard2

Saludos,

Nik Maffiuletti

I agree with Ionell Serban

 The Heart Rate Variability(HRV) assessment could help the coaches to evaluate the recovery after a workout or after a competition or, as you ask, after a match.

Thank you so much Laurent, Nicola and Ioannis. EMG is like the gold standart but nowadays, impossible for us.

Massimo, it's a good option to measure with Polar Team for example and evaluate later the variability. Could you help me with some paper?

Thanks' friends

It is not....you have to use a more accurate cardio. Attached you can find a document. This document can help you.

Massimo

Hi Massimo,

It's better option minicardio, yes.

Raúl

Raul,

Regarding your request. My solution is to measure blood pressure and temperature as it should be assessed along with the COP.

Good luck. Vote to promote if you find them useful...

Here's something I found:

https://www.researchgate.net/publication/270905024_Fatigue_Monitoring_in_High_Performance_Sport_A_Survey_of_Current_Trends

https://www.strengthandconditioningresearch.com/2013/10/28/overtraining-detection/

Article Fatigue Monitoring in High Performance Sport: A Survey of Cu...

Dear Raul, 

I think that a simple and reliability method to quantify the neuromuscular fatigue is assess the countermovement jump (CMJ) height. Several studies have indicated that loss of CMJ height is a valid indicator to objectively quantify the acute and delayed nueromuscular fatigue after resistance exercise or sprints.

References:

1.            Gonzalez-Badillo JJ, Rodriguez-Rosell D, Sanchez-Medina L, Ribas J, Lopez-Lopez C, Mora-Custodio R, Yanez-Garcia JM,  Pareja-Blanco F. Short-term Recovery Following Resistance Exercise Leading or not to Failure. Int J Sports Med 2016; 37: 295-304.

2.            Gorostiaga EM, Asiain X, Izquierdo M, Postigo A, Aguado R, Alonso JM,  Ibanez J. Vertical jump performance and blood ammonia and lactate levels during typical training sessions in elite 400-m runners. J Strength Cond Res 2010; 24: 1138-1149.

3.            Jimenez-Reyes P, Pareja-Blanco F, Cuadrado-Penafiel V, Morcillo JA, Parraga JA,  Gonzalez-Badillo JJ. Mechanical, Metabolic and Perceptual Response during Sprint Training. Int J Sports Med 2016.

4.            Pareja-Blanco F, Rodriguez-Rosell D, Sanchez-Medina L, Gorostiaga EM,  Gonzalez-Badillo JJ. Effect of movement velocity during resistance training on neuromuscular performance. Int J Sports Med 2014; 35: 916-924.

5.            Pareja-Blanco F, Rodriguez-Rosell D, Sanchez-Medina L, Ribas-Serna J, Lopez-Lopez C, Mora-Custodio R, Yanez-Garcia JM,  Gonzalez-Badillo JJ. Acute and delayed response to resistance exercise leading or not leading to muscle failure. Clin Physiol Funct Imaging 2016.

6.            Sanchez-Medina L, Gonzalez-Badillo JJ. Velocity loss as an indicator of neuromuscular fatigue during resistance training. Med Sci Sports Exerc 2011; 43: 1725-1734.

I hope that my answer has been helpful

Cheers

David

@Ionel Thanks for your help. We try on lab before.

@David, very good information you gave me. It seems to me CMJ could help us next saturday. Thank you very much.

Raúl

Raúl, building on the previous interesting answers I would also recomend considering Perception of Subjetive Effort (PSE) as a measure of internal training load. This measure has generated major interest within the research and practical domains.

Please check:

i) Scott et al. (2013). A comparison of methods to quantify in-season training load of professional soccer players. IJSPP

Coutts et al (2008). Heart rate and blood lactate correlates with perceived exertion during small-sided soccer games. JSAMS

Impellizzeri et al. (2004). Use of RPE-based training load in soccer. Medicine  & Science in Sports & Exercise.

Hello Raul....

I  told you  this afternoon about the  CMJ ....  that  is  a good  idea!

Also you  could  think about  some  psychological test, like  stress, recovery....

Dear Raul, 

I think that the CMJ is a great tool and method to assessement the neuromuscular fatigue. Studies have showed loss, equal and increase in several variables  of CMJ such as peak power, contraction time, jump heigth and more like direct variables of neuromuscular fatigue after training.

In tennis is timely use the CMJ pre and pos exercise or protocol 

Int J Sports Physiol Perform. 2015 Jan;10(1):84-92. doi: 10.1123/ijspp.2013-0413. Epub 2014 Jun 6.

Alternative countermovement-jump analysis to quantify acute neuromuscular fatigue.

Gathercole R1, Sporer B, Stellingwerff T, Sleivert G.

Boullosa D, Tuimil J, Alegre L, Iglesias E, Lusquiños F. (2011). Concurrent Fatigue and Potentiation in Endurance Athletes. International Journal of Sports Physiology and Performance. 6, 82-93.

regards 

@Pedro I goint to use Borg to measure PSE. It's an easy tool but there are some argument when players have not usually familiarized. We will try it!

@Joao, Thanks again as I wrote yesterday by email. See you soon!

@Cristian Thanks for the papers. Very good information.

With mates with you is a pleasure.

Thanks' again