Slow and Steady, or Hard and Fast? A Systematic Review and Meta-Analysis of Studies Comparing Body Composition Changes between Interval Training and Moderate Intensity Continuous Training
, Daniel Plotkin 2, Derrick Van Every 2, Avery Rosa 2, Hugo Zambrano 2, Benjiman Mendelovits 2, Mariella Carrasquillo-Mercado 2, Jozo Grgic 3 and Brad J. Schoenfeld 2,*
Round 1
Reviewer 1 Report
I would like to express my compliments to the authors for this huge work, I just have a few suggestions.
To better understand the changhes observed in body composition I would add a table showing the percentage of methods used to detect it. For examble: in how many of the studied works was used BIA, or skifold etc.
As the studies included in the review are heterogeneous I would have expressed the variations in body composition in percentage. I also suggest to use Fat Free Mass (FFM) instead of lean mass.
Author Response
I would like to express my compliments to the authors for this huge work, I just have a few suggestions.
AUTHOR RESPONSE: Thank you very much for reviewing our manuscript. We appreciated the positive feedback, and have addressed your comments on a point-by-point basis below.
To better understand the changes observed in body composition I would add a table showing the percentage of methods used to detect it. For examble: in how many of the studied works was used BIA, or skinfold etc.
AUTHOR RESPONSE: Good suggestion, we have added a column to Table 1 that lists the body composition measurement method for each study.
As the studies included in the review are heterogeneous I would have expressed the variations in body composition in percentage. I also suggest to use Fat Free Mass (FFM) instead of lean mass.
AUTHOR RESPONSE: As per your suggestion, we have changed “lean mass” to FFM throughout the manuscript
Author Response File: 
Author Response.docx
Reviewer 2 Report
Excellent work. Just Minor corrections should be done, as well as:
- P7, R 264: ...trunk), and....... - extra tab which should be deleted.
- P19, R 420 - 429: Font number is smaller than in the rest of the text. Please, do proper corrections.
- P19, R 432 - 433: (IT, median = 28 mins [range = 3 mins to 120 mins]; MICT, median = 120 mins [range = 48 to 250]) - Here it is necessary to emphasize exercise training period i.e. duration (on average and overall range of time) those body mass changes are.
- P21, R 523: Diseased population - is when someone is not healthy, i.e. when he is sick or infectiously ill. It is better to change this into: even in a population with non-communicable diseases and other health risks.....
- P22, R 598 - ...: For some references, the title of the reference is written with a capital letter for each word (4, 6, 11 ......), and for some with a lower case letter (1, 2, 3, 5,....). It is necessary to unify it in accordance with the technical requirement.
Anyway, congratulations.
Best.
Comments for author File: 
Comments.pdf
Author Response
Excellent work. Just Minor corrections should be done, as well as:
AUTHOR RESPONSE: Thank you very much for reviewing our paper, and for the positive feedback. We have addressed your comments on a point-by-point basis, hopefully to your satisfaction.
- P7, R 264: ...trunk), and....... - extra tab which should be deleted.
AUTHOR RESPONSE: Good catch. We revised accordingly.
- P19, R 420 - 429: Font number is smaller than in the rest of the text. Please, do proper corrections.
AUTHOR RESPONSE: We have revised so that the fonts are consistent.
- P19, R 432 - 433: (IT, median = 28 mins [range = 3 mins to 120 mins]; MICT, median = 120 mins [range = 48 to 250]) - Here it is necessary to emphasize exercise training period i.e. duration (on average and overall range of time) those body mass changes are.
AUTHOR RESPONSE: We have revised to indicate this refers to duration
- P21, R 523: Diseased population - is when someone is not healthy, i.e. when he is sick or infectiously ill. It is better to change this into: even in a population with non-communicable diseases and other health risks.....
AUTHOR RESPONSE: We have revised as per your suggestion.
- P22, R 598 - ...: For some references, the title of the reference is written with a capital letter for each word (4, 6, 11 ......), and for some with a lower case letter (1, 2, 3, 5,....). It is necessary to unify it in accordance with the technical requirement.
AUTHOR RESPONSE: Thanks for noting this issue. We have gone through the bibliography and revised so that the cases are consistent across citations.
Author Response File: Author Response.docx
