Selected Indices of Anaerobic Capacity and Their Changes during Special Judo Fitness Tests at Different Ambient Temperatures Performed among Judo Athletes
, Grzegorz Lech 2, Wanda Pilch 3, Łukasz Tota 1, Piotr Koteja 2, Anna Tyka 4, Piotr Czech 5, Łukasz Rydzik 2,* and Tadeusz Ambroży 2
Timothy B. Davies
Round 1
Reviewer 1 Report (New Reviewer)
Dear Authors,
You have written a paper with the main focus of selected variables on different ambient temperatures. The methods section is extremely poorly written and the introduction does not present the main rationale well.
Several parts need to be addressed for greater clarity.
Abstract:
Lines 19-23 have no relevance to the main aim and should be deleted.
Also, the next sentence in lines 24-25 does not present the correct ai of your study as described at the end of the introduction. Amend
Report p values.
The conclusion of your study is poor - what are the real practical applications connected to abient temperature - this is the main focus. Nothing is mentioned. Amend
Introduction
The main focus is judo. Therefore amend the first sentence to focus on judo and delete references related to other sports.
The sentence in lines 49-51 needs to be backed up by a reference.
The sentence in lines 59-60 regarding the thermal conditions needs to be backed up by references and how is this important for judo. Amend
Sentence in lines 92-96 has no references and is more of an opinion rather then based on research. Please add references. The IJF competitions are held in tournament halls with AC systems that maintain the ambient temperature so from this point your study's main rationale is very poor. Try to back up this.
I would suggest focusing on training and training caps, especially in summer when athletes train in highly humid and high-temperature environments. This is where your study could come into practice. Especially when connected to the next sentences when you talk about dehydration. One of the late studies (DOI: 10.1177/17479541221122433) reported that elite athletes are Hypohydration even during a weight-stable training camp. Connecting these facts with additional dehydration-sweating would give you a solid foundation for your rationale and research in environment temperature.
The sentence in lines 96-97 has references that do not research thermal factor influence related to a judo fight. Therefore amend the sentence and references.
Line 108 - delete the .
Methods
Line 116 / age and training experience - what was the minimum to be included in the study? report
Line 118 - what happened to the 5 that did not complete all tests and why? Report. Also, change the sammple size to 10 in the abstract as it is misleading in this way.
Line 125 - which medical personnel (it can be a doctor, nurse,...)? report
Report athlete's weight categories and belt degree levels.
How were body height and body weight emasured? Report
What were the instructions to athletes 1 day before the body composition - bioimpedance measurements? If certain procedures are not followed this can have great effects on results and should be mentioned in the limitations section.
Line 158 - report the model of the BP monitor?
Report HR monitor
Line 180 - Why a load of 8.3% - how much judo research was done with this load so you can compare the data? Elaborate
The same for the upper body of 4.5%?
What ergometer was used?
Why did you do Wingate and aerobic test on the same day? Elaborate and back up by research
Report all models of equipment used!
References for aerobic protocols are misisng? How was upper body aerobic testing done? Report
The stages done are very unclear and confusing. I recommend adding a figure with clear stages and tests performed to be inserted for greater clarity.
How did you select participants for aerobic testing groups - was it randomly?
What was the model of the environment chamber?
The method section is confusing and should be divided into the general descriptions of stages and later the description of all tests and applied. Please divide them into subsections.
What was your level of significance? report
Why didn't you measure body core temperature? This is one of the important factors in studies that examine the effects of environmental temperature. Elaborate and add as a limitation
Discussion
The first paragraph should explain the main aim and finding of your study in non-statistical terms. Please amend
The discussion mainly just states the results of temperature and does not discuss the physiological parameters behind and what could influence them and how this could be applicable to judo training or combat.
Line 538 - ''offers an opportunity for an optimal'' really? in what way. How is your study applicable to coaches? Will they train at higher temperatures? This is a conclusion without any basis. Rewrite.
Practical application at the end does not tell anything to a coach.
In general a dataset with potential, unfortunately, the authors still need to invest more time in making this study clearer to understand and to show how is this research adding to the field of judo. Also, the methods section needs an immense upgrade as it is hard to read and confusing. Also, an English proofread is needed.
Therefore I recommend a major revision.
Author Response
Dear Reviewer,
Thank you very much for your time and valuable comments, which all have been considered and incorporated. The detailed list of responses is given below. We hope that the modifications and explanation will be acceptable for you.
Yours sincerely,
Rydzik, corresponding author
Dear Authors,
You have written a paper with the main focus of selected variables on different ambient temperatures. The methods section is extremely poorly written and the introduction does not present the main rationale well.
Several parts need to be addressed for greater clarity.
Abstract:
Lines 19-23 have no relevance to the main aim and should be deleted.
A: This has been corrected
Also, the next sentence in lines 24-25 does not present the correct ai of your study as described at the end of the introduction. Amend
A: This has been corrected
Report p values.
A: This has been corrected
The conclusion of your study is poor - what are the real practical applications connected to abient temperature - this is the main focus. Nothing is mentioned. Amend
A: This has been corrected
Introduction
The main focus is judo. Therefore amend the first sentence to focus on judo and delete references related to other sports.
The sentence in lines 49-51 needs to be backed up by a reference.
A: This has been corrected
The sentence in lines 59-60 regarding the thermal conditions needs to be backed up by references and how is this important for judo. Amend
A: This has been corrected
Sentence in lines 92-96 has no references and is more of an opinion rather then based on research. Please add references. The IJF competitions are held in tournament halls with AC systems that maintain the ambient temperature so from this point your study's main rationale is very poor. Try to back up this.
A: This has been corrected
I would suggest focusing on training and training caps, especially in summer when athletes train in highly humid and high-temperature environments. This is where your study could come into practice. Especially when connected to the next sentences when you talk about dehydration. One of the late studies (DOI: 10.1177/17479541221122433) reported that elite athletes are Hypohydration even during a weight-stable training camp. Connecting these facts with additional dehydration-sweating would give you a solid foundation for your rationale and research in environment temperature.
A: This has been corrected
The sentence in lines 96-97 has references that do not research thermal factor influence related to a judo fight. Therefore amend the sentence and references.
A: This has been corrected
Line 108 - delete the .
A: This has been corrected
Methods
Line 116 / age and training experience - what was the minimum to be included in the study? Report
A: Added ,This information is contained in table 1, line 162, while the mean and standard deviation of the age of the subjects in lines 133
Line 118 - what happened to the 5 that did not complete all tests and why? Report. Also, change the sammple size to 10 in the abstract as it is misleading in this way.
A: This has been corrected , out of the study group, 5 people did not complete the test. This information is examined in lines 141-154 and table 1
Line 125 - which medical personnel (it can be a doctor, nurse,...)? report
A: It was a doctor, it has been corrected
Report athlete's weight categories and belt degree levels.
A: Weight categories and grades in judo were not reported, as the selection criterion was a high sports level based on the competition ranking. Ranks do not always reflect the starting results in competitions
How were body height and body weight emasured? Report
A: Line 287-296 information is given
What were the instructions to athletes 1 day before the body composition - bioimpedance measurements? If certain procedures are not followed this can have great effects on results and should be mentioned in the limitations section.
A; The athletes were instructed to maintain their eating habits the day before the study
Line 158 - report the model of the BP monitor?
A: This information is on line 302-303
Report HR monitor
A: This information is on line 302-303
Line 180 - Why a load of 8.3% - how much judo research was done with this load so you can compare the data? Elaborate
A: The load was selected based on pilot research [1,6,29].
The same for the upper body of 4.5%?
A:The load was selected based on pilot research [1,6,29].
What ergometer was used?
A: Information is provided on lines 304-307
Why did you do Wingate and aerobic test on the same day? Elaborate and back up by research
A: This was in accordance with the research recommendations, as a 2-hour break was used between the tests
Report all models of equipment used!
A: This has been corrected
References for aerobic protocols are misisng? How was upper body aerobic testing done? Report
A: Thank you, this has been corrected and described in detail
The stages done are very unclear and confusing. I recommend adding a figure with clear stages and tests performed to be inserted for greater clarity.
A: The descriptions have been corrected and the study scheme has been added
How did you select participants for aerobic testing groups - was it randomly?
A: All subjects had valid medical examinations allowing them to train and start in competitions. Participants were recruited on this basis
What was the model of the environment chamber?
A: Added information on line 296
The method section is confusing and should be divided into the general descriptions of stages and later the description of all tests and applied. Please divide them into subsections.
A: The section has been corrected and the study scheme has been added
What was your level of significance? Report
A: Information added
Why didn't you measure body core temperature? This is one of the important factors in studies that examine the effects of environmental temperature. Elaborate and add as a limitation
A: Added information to restrictions
Discussion
The first paragraph should explain the main aim and finding of your study in non-statistical terms. Please amend
A: This has been corrected
The discussion mainly just states the results of temperature and does not discuss the physiological parameters behind and what could influence them and how this could be applicable to judo training or combat.
A: This has been corrected
Line 538 - ''offers an opportunity for an optimal'' really? in what way. How is your study applicable to coaches? Will they train at higher temperatures? This is a conclusion without any basis. Rewrite.
A: This has been corrected
Practical application at the end does not tell anything to a coach.
A: This has been corrected
In general a dataset with potential, unfortunately, the authors still need to invest more time in making this study clearer to understand and to show how is this research adding to the field of judo. Also, the methods section needs an immense upgrade as it is hard to read and confusing. Also, an English proofread is needed.
Therefore I recommend a major revision.
A: Thank you
Reviewer 2 Report (New Reviewer)
Selected indices of anaerobic capacity and their changes in special judo fitness tests in judo athletes at different ambient temperatures
Abstract
Line 29: Temperature is mentioned for the first time here but isn’t mentioned in the first few lines around why it would impact judo performance or is part of a needs analysis for judo
Line 32: No mention of statistical analysis to educate the reader on how the differences in the following sentence are derived. A sentence on how the differences between conditions were analysed would be best here including an alpha level of significance
Line 32: Differences between groups can exist even if they are not significantly different based on your analysis method. I would make this clear in the abstract about whether the differences are significant and/or the magnitude of the differences using effect sizes or similar.
Line 37, conclusions: specific conclusions are required here which tell the reader what this means for judo athletes, rather than saying that the results obtained can be applied, because my first question is how is this applied?
Introduction
Good introduction that provides background arguments to why the study is being done. The temperature element is briefly mentioned which is good but this wasn’t clear in the abstract so I’m glad it’s here. No major issues here for me.
Methods
Unfortunately the methodology is described in a confusing way which made me feel like that I needed to confirm multiple times around what the study was actually implementing.
Line 114: what specifically does a ‘good’ health status mean in this context?
Line 114-5: If a sample size was determined before the study began, how did this specifically occur?
Line 115-6: Inclusion and exclusion criteria needs to be explicitly described. The one that is defined well is the training experience criteria which has a clear cut-off of 10 years. So these rules need to be described clearly so the reader knows exactly what your criteria were for participants. I would say only the inclusion OR the exclusion criteria is required. I like adding in exclusion criteria which tells the reader that if they don’t meet one or more of the exclusion criteria, they are included in the study. Criteria that needs to be described better is the health status criterion and chronological age which is not mentioned in table 1 at all so I don’t know what the specific criteria is for chronological age.
Line 138: mention of circadian rhythms here without a citation surrounding the evidence behind why tests were performed in the morning due to circadian rhythms.
Line 142: I would also report the mean and SD age of the participants that completed the testing like you have done with other anthropometric variables.
Line 154: It seems like BMI was an inclusion criteria for the study based on the wording “normal range accepted”. This will need to be added to the inclusion criteria if this is true.
Line 157: Is the body composition analyzer valid and reliable in the research? What was the specific protocol used to collect this data, e.g. were subjects fasted prior to estimating body composition as the value is impacted by fasted state. I guess I don’t have enough information if I wanted to replicate
Line 175: citation for the Wingate test seems to be in the wrong spot.
Line 179: “…performed a 30-second maximal physical exercise” hits the ear wrong from an English perspective. I would say “…performed a 30-second maximal effort”. Also provide a comment on whether the effort was paced throughout as a traditional Wingate should not be paced with strong verbal encouragement throughout.
Line 181: was there a reason why the different external loads were used for the Wingate?
Line 192: I’m not sure what the (DE) means in this context?
Line 193: double period after “60”.
Line 195-196: double use of “performed”, I would keep the first mention of “performed” and delete the second.
Line 210: “where” should be changed to “were”.
Line 211: 5-min
Line 251: Change “Tuckey” to “Tukey”
Line 253: Add in the alpha level of significance here as <0.05 or <0.1 or whatever you used.
Results:
Line 275: “and” instead of “asnd”
Figure 1: The green and red datasets has the degrees symbol as a zero instead of a superscripted circle
Lines 286-7, 291-293: temperature units aren’t correctly formatted like the rest of the manuscript
Figures 2 and 3: All degree symbols appear to be zeros.
Discussion
The first paragraph should summarise the findings of the research before going into explaining the findings. Without it, it reads as if there is no significant finding of the study.
Unfortunately there is no discussion of the results of the study with very few direct references to the results. When the results of the study are directly presented, they are not discussed, rather the results of the study are repeated like in the results section. This is clear in lines 469-476. Lines 477-480 do a better job of applying the findings of the study to the wider literature.
Conclusions look to be unfinished
Practical implications don’t provide a specific practical application to assist coaches or scientists in utilising the results of this data. It also looks unfinished.
Author Response
Dear Reviewer,
Thank you very much for your time and valuable comments, which all have been considered and incorporated. The detailed list of responses is given below. We hope that the modifications and explanation will be acceptable for you.
Yours sincerely,
Rydzik, corresponding author
Abstract
Line 29: Temperature is mentioned for the first time here but isn’t mentioned in the first few lines around why it would impact judo performance or is part of a needs analysis for judo
A: This has been corrected
Line 32: No mention of statistical analysis to educate the reader on how the differences in the following sentence are derived. A sentence on how the differences between conditions were analysed would be best here including an alpha level of significance
A: This has been corrected
Line 32: Differences between groups can exist even if they are not significantly different based on your analysis method. I would make this clear in the abstract about whether the differences are significant and/or the magnitude of the differences using effect sizes or similar.
A: This has been corrected
Line 37, conclusions: specific conclusions are required here which tell the reader what this means for judo athletes, rather than saying that the results obtained can be applied, because my first question is how is this applied?
A: This has been corrected
Introduction
Good introduction that provides background arguments to why the study is being done. The temperature element is briefly mentioned which is good but this wasn’t clear in the abstract so I’m glad it’s here. No major issues here for me.
A: Thank you
Methods
Unfortunately the methodology is described in a confusing way which made me feel like that I needed to confirm multiple times around what the study was actually implementing.
Line 114: what specifically does a ‘good’ health status mean in this context?
A: Added information
Line 114-5: If a sample size was determined before the study began, how did this specifically occur?
A: Added information . Zostało to obliczone przy wykorzystaniu G power
Line 115-6: Inclusion and exclusion criteria needs to be explicitly described. The one that is defined well is the training experience criteria which has a clear cut-off of 10 years. So these rules need to be described clearly so the reader knows exactly what your criteria were for participants. I would say only the inclusion OR the exclusion criteria is required. I like adding in exclusion criteria which tells the reader that if they don’t meet one or more of the exclusion criteria, they are included in the study. Criteria that needs to be described better is the health status criterion and chronological age which is not mentioned in table 1 at all so I don’t know what the specific criteria is for chronological age.
A: This has been corrected
Line 138: mention of circadian rhythms here without a citation surrounding the evidence behind why tests were performed in the morning due to circadian rhythms.
A: This has been corrected
Line 142: I would also report the mean and SD age of the participants that completed the testing like you have done with other anthropometric variables.
A: This has been corrected
Line 154: It seems like BMI was an inclusion criteria for the study based on the wording “normal range accepted”. This will need to be added to the inclusion criteria if this is true.
A: This has been corrected
Line 157: Is the body composition analyzer valid and reliable in the research? What was the specific protocol used to collect this data, e.g. were subjects fasted prior to estimating body composition as the value is impacted by fasted state. I guess I don’t have enough information if I wanted to replicate
A: This has been corrected
Line 175: citation for the Wingate test seems to be in the wrong spot.
A: This has been corrected
Line 179: “…performed a 30-second maximal physical exercise” hits the ear wrong from an English perspective. I would say “…performed a 30-second maximal effort”. Also provide a comment on whether the effort was paced throughout as a traditional Wingate should not be paced with strong verbal encouragement throughout.
A: This has been corrected
Line 181: was there a reason why the different external loads were used for the Wingate?
A: This has been corrected. This was done based on pilot studies and research recommendations
Line 192: I’m not sure what the (DE) means in this context?
A: This has been corrected
Line 193: double period after “60”.
A:This has been corrected
Line 195-196: double use of “performed”, I would keep the first mention of “performed” and delete the second.
A:This has been corrected
Line 210: “where” should be changed to “were”.
A:This has been corrected
Line 211: 5-min
A:This has been corrected
Line 251: Change “Tuckey” to “Tukey”
A:This has been corrected
Line 253: Add in the alpha level of significance here as <0.05 or <0.1 or whatever you used.
A:This has been corrected
Results:
Line 275: “and” instead of “asnd”
A:This has been corrected
Figure 1: The green and red datasets has the degrees symbol as a zero instead of a superscripted circle
A:This has been corrected
Lines 286-7, 291-293: temperature units aren’t correctly formatted like the rest of the manuscript
A:This has been corrected
Figures 2 and 3: All degree symbols appear to be zeros.
A: This has been corrected
Discussion
The first paragraph should summarise the findings of the research before going into explaining the findings. Without it, it reads as if there is no significant finding of the study.
A:This has been corrected
Unfortunately there is no discussion of the results of the study with very few direct references to the results. When the results of the study are directly presented, they are not discussed, rather the results of the study are repeated like in the results section. This is clear in lines 469-476. Lines 477-480 do a better job of applying the findings of the study to the wider literature.
A:This has been corrected
Conclusions look to be unfinished
Practical implications don’t provide a specific practical application to assist coaches or scientists in utilising the results of this data. It also looks unfinished.
A:This has been corrected
Round 2
Reviewer 1 Report (New Reviewer)
Dear Authors,
Thank you for addressing the majority of suggestions. The quality of the paper improved. However, the paper urgently needs Extensive English editing as some parts of the text are hard to read and understand. It would be a pity if the essence of the text would be lost because of the poor language.
Limitations of the study - The word ''core'' needs to be added as ''body core temperature''
Therefore I recommend acceptance after minor revision.
Kind regards
Author Response
Dear Reviewer,
Thank you very much for your time and valuable comments, which all have been considered and incorporated. The detailed list of responses is given below. We hope that the modifications and explanation will be acceptable for you.
Yours sincerely,
Rydzik, corresponding author
A: Thank you, it has been corrected. In addition, the manuscript was checked by a native speaker, which was confirmed by a certificate. Thank you for your valuable tips
Reviewer 2 Report (New Reviewer)
I thank the authors for responding to my comments, I acknowledge it was a lot of intellectual effort in your research group. I think the manuscript is much more focused and the content is specific to the research question at hand. There is editing for typographical and formatting errors that may be applied by the publisher, but I am happy with the content that is provided. See below for minor comments.
Line 42: I'm not sure what the p<0.05 is referring to here. Is it the alpha level of significance used throughout the paper?
Line 45: place actual p-value here if possible
Table 1: Age in the inclusion criteria: should read >18 years
Author Response
Dear Reviewer,
Thank you very much for your time and valuable comments, which all have been considered and incorporated. The detailed list of responses is given below. We hope that the modifications and explanation will be acceptable for you.
Yours sincerely,
Rydzik, corresponding author
Line 42: I'm not sure what the p<0.05 is referring to here. Is it the alpha level of significance used throughout the paper?
A: We decided to remove this provision for greater clarity
Line 45: place actual p-value here if possible
A: We have decided to remove this entry, for clarity, values are reported in the manuscript tables
Table 1: Age in the inclusion criteria: should read >18 years
A: This has been corrected
In addition, all work has been checked by a native speaker
This manuscript is a resubmission of an earlier submission. The following is a list of the peer review reports and author responses from that submission.
Round 1
Reviewer 1 Report
Abstract
1. Lines 20-21 - Replace "compete in" by "undertake".
2. Change " 7 min. 40 sec" to " 7.4 min".
3. Line 27 - Change "ml kg-1" to "ml.kg-1".
4. Lines 28-29 – Change “of pulsating efforts alternately on a leg cycle ergometer and hand cycle ergometer” to “, alternating efforts in a leg cycle ergometer and arm cycle ergometer”
5. Lines 30-31 – Change “by alternated (pulsating) loads on the upper and lower limbs that varied over time” to “by alternating upper- and lower-limb efforts, as well as the duration of those efforts.”
6. Line 31 - Change "15-minute" to "15-min".
7. Line 32 – Change “upper by lower limbs” to “upper and lower limbs”.
Introduction
8. Line 42 – Judo athletes are not professional athletes.
9. Lines 44-46 – Change “However, special training and testing programs prepared by coaches and based primarily on scientific research in physiology and biochemistry are also responsible for athletic performance [8–10]” to “In this sense, special training programs prepared by coaches and based primarily on scientific research in physiology and biochemistry contribute to athletic performance [8–10]”.
10. Line 46 – Replace “observations” by “testing methods”.
11. Line 51 – Change “potential capabilities of the individual” to “individual potential capabilities”.
12. Line 60 – Change “mainly in its second part” to “mainly in the second part of the combat”.
13. Line 62 – Replace “however” by “nonetheless”.
14. Line 63 – Change “improving mechanisms of oxygen supply to tissues” to “to improve the mechanisms of oxygen supply to tissues”.
15. Lines 68-70 – Rewrite the sentence to clarify the meaning.
16. Lines 85-86 – Revise the sentences considering the suggestions made for the Abstract section.
17. Lines 86-87 – Rewrite the sentence to clarify the meaning.
18. Line 88 – Eliminate “at least”.
19. Line 92 – Eliminate “Many”.
20. Lines 92-94 - Rewrite the sentence to clarify the meaning.
21. Lines 101-104 – Change the sentence to “The paucity of studies about the effect of anaerobic efforts performed alternately with the upper and lower limbs at various ambient temperatures on changes in physiological and biochemical indices warrants further research on this topic.”
22. Lines 105-106 - Change the sentence to “Previous research in this field has focused on the effects of time of day and thermoregulation on performance in judo [35,36] or in analyses of lactate concentration in relation to varying skin temperature [37].”
23. Lines 107-108 – This sentence should be eliminated, since it is not adequate for the Introduction section.
Materials and Methods
24. Lines 113-114 Rewrite the sentence to clarify the meaning.
25. Lines 114-116 – Which were the inclusion criteria? For example: chronological age between 18 and 30 years old.
26. Line 119 – Change “The men” to “Participants”.
27. Line 122 – Change to “Each participant signed an informed consent…”
28. Lines 134-135 - Change “The men” to “Participants”.
29. Lines 137-139 – Change to “VO2max (aerobic capacity) in the lower limb test was 43.23±7.79 ml·min-1·kg-1 in relative values and 3.28±0.63 l·min-1 in absolute terms, while peak power (anaerobic capacity) was 12.12 W.kg⁻¹ in relative values and 933 W in absolute terms.
30. Line 155 LL and UL have been defined in the previous sentence. Do not repeat it.
31. Line 157 – Correct “Vo2max2max”.
32. Lines 171-172 – Change to “until the participant declared he was not able to maintain the RPM at xxx”. Please indicate which was the desired RMP.
33. Lines 176-177 – What was the relative humidity when exercising at 21ºC?
34. Lines 181-183 – Revise the sentences considering the suggestions made for the Abstract section.
35. There is no legend for table 1, therefore I cannot know the meaning of NNLL.
36. Line 188 – Change “was” to “were”.
37. Lines 230 -231 – Add the symbol for arithmetic mean.
Results
38. Line 312-315 – Change to “The total work (ΣTTW) performed by the athletes at an ambient temperature of 21ºC was 2895.21 kJ and 2928 kJ at 31ºC during five series of pulsating efforts (each series consisted of alternating efforts on a leg and arm cycle ergometer at maximum intensity) (Table 1).
39. Line 324 – Change to “Blood lactate (LA) levels obtained…”
40. Line 332 – Idem.
Discussion
41. First paragraph should include the principal results of the study and its implications for the scientific knowledge.
42. Lines 357-359 – Rewrite the sentence to clarify the meaning.
43. Lines 365-370 - Rewrite the sentence to clarify the meaning.
44. Lines 381-383 – Change to “According to the standards proposed by Zdanowicz and Wojczuk, [50], the tested athletes had a high level of relative peak power (RPP) and a very high total work (TW).”
45. Line 393 – Include reference.
46. Lines 397-399 - Rewrite the sentences to clarify the meaning.
47. Line 421 Change “hand ergometers to “arm ergometers”-
48. Line 455 – Change to “The efforts proposed in this study…”.
49. Lines 488-489 – Eliminate “proposed by the authors”.
50. Line 495 – Change “In the opinion of the authors…” to “Therefore…”.
Comments for author File: 
Comments.docx
Reviewer 2 Report
General comments The study investigated the changes that different ambient temperatures could induced on anaerobic total work and on relative peak power during a special judo fitness test. The study could be rather interesting, however, it needs a great re-organization to allow the reader to follow and to understand the manuscript. It is very confused. As clarified by the specific comments below, many points should be addressed more extensively. Specific comments Improve the scientific English for clarity. Abstract Lines 37-38. Authors should indicate the practical applications of the study. Introduction Authors should better explain the rationale of the study. It is not clear. Material and Methods In general, the explanation of the protocol was very confused and not so clear to understand and replicate. Authors should better explained the protocol and the measures that were conducted for the study. Lines 114-116. Authors should specify the inclusion criteria. Authors should substitute biometric indices with anthropometric variables. Moreover, how anthropometric indices were calculated? Please, include their description in this section instead of in the Measurement technique section. Line 157. Individually selected intensity of 50% Vo2max2max???????? Moreover, I think that if exercise intensity was established in relation to subject’s VO2max, Authors firstly evaluated aerobic capacity (VO2max) and therefore they established the exercise intensity. Please, clarify it. Lines 162-163. How phosphagen and glycolytic components were assessed? Lines 166-172. Please, better explained the protocol and the measures that were conducted for the study. How many days passed between the STAGES II and III and the STAGES IV and V? Table 1. What NNLL means? Please, clarify. Lines 203-227. Measurement technique section. I suggest to the Authors to include the measurement techniques description within the previous sections of the manuscript, as already suggested for the anthropometric measurements.Lines 230-231. … … the arithmetic mean ( ) and standard deviation (SD). ( ) ???????
Results
Table 2. ^ significant differences at p<0.05 level, between temperatures of 21°C and 31°C, separately for each measurement. What it refers to? Please, clarify.
Figure 1. ^ - significant differences at p<0.05, between temperatures of 21°C and 31°C, separately in each measurement. What it refers to? Please, clarify. What does the acronym AA mean? Please, write in English language the label of the horizontal (x) axis. The label of the figure is not exhaustive.
Figures 2-5. Please, see comments for Figure 1.
Lines 312-315. Please, rephrase this sentence.
Tables. Tables should be self-explanatory. Please, modify the tables in order to allow the reader to understand the contents of the table without referring to the text.
There is not a fully correspondence between the measurements conducted and the reported results.
Discussion
Lines 347-349. It is not clear how the results of the study supported this sentence.
Authors should indicate and discuss what are the practical applications of the study.
Authors should add a limitations section.
Reviewer 3 Report
General comments by reviewer
This study investigated the physical performances in Judo athletes. I think this kind of study is required for the sports science fields. However, this manuscript needs to revise to clarify the background and discussion sections. The most of contents have too many information and do not stand out your critical points. So, I highly recommend to reduce the repeated and additional contents to improve the readability. The specific comments are as follows:
Specific comments by reviewer
Abstract section
Line 34: Please check the unit.
Introduction section
The introduction section includes valid background information. However, the introduction should provide simple and clear contents as possible. So, I highly recommend reduce the contents short length as possible. Because it provides detailed information, and I think just focus on the contents similar with your study, such as competitive sports (e.g., boxing, judo, taekwondo, kick boxing, MMA, etc).
Lines 60-64: Please rephrase these sentences for the fluency.
Lines 101-111: Please summarize the trends of the current studies, and describe the gaps which is unclear. This process can emphasize the necessary of your study.
Besides, I recommend adding the hypotheses of this study at the end of the introduction section.
Methods section
Please provide how to calculate the sample size in this study.
Line 132: I highly recommend adding a flow-chart to describe your all of the process for the recruitment.
All tables: Please add the legends of the abbreviations for all tables at below.
Lines 195-197: Please describes the details how to calculate the variables.
Results section
All of the figures resolution is not clear. Also, the font size is relatively small. Please check and revise the all of the figures in this manuscript.
Discussion section
It is similar with the above my comments, the discussion section is also reduced the contents. Please reduce the repeated contents and clarify to critical results.
Besides, please lead you flow based on your significant results in this study. I feel that the construction of the paragraphs in the discussion are not organazed. And I highly recommend add the strengthes and limitations in this study at the end of the discussion section.
