All reviews of published articles are made public. This includes manuscript files, peer review comments, author rebuttals and revised materials. Note: This was optional for articles submitted before 13 February 2023.
Peer reviewers are encouraged (but not required) to provide their names to the authors when submitting their peer review. If they agree to provide their name, then their personal profile page will reflect a public acknowledgment that they performed a review (even if the article is rejected). If the article is accepted, then reviewers who provided their name will be associated with the article itself.
i m happy with the current version of the manuscript.
[# PeerJ Staff Note - this decision was reviewed and approved by Mike Climstein, a PeerJ Section Editor covering this Section #]
The reviewers made several reasonable suggestions. Please consider them.
Please include a few more recent studies (not older than 5 years) in the introduction part and in the discussion of the research problem.
Support advice from coaching literature (Matsumoto, 1975 - line 69; Yamashita 1992 and Daigo 2005 - line 79; Yamashita 1992 - line 87) with findings from relevant scientific research.
Please include information on the statistical strength of the sample in the "Participants" section (line 101-112).
No comment
No comment
General comments
This manuscript aims to investigate head and trunk movements (including the pelvic and upper torso) contributing to higher leg-sweep velocities when executing the judo osoto-gari. The aim is commendable. Authors found that increasing the forward angle of the head aids the visual system in rapidly processing spatial information about the target position, thus facilitating the execution of the leg sweep, and a greater forward-tilt rotation of the head, which leads to rapid trunk rotation, is conducive to enhancing sweeping-leg velocity. Overall, the authors manage to fulfil their aim sufficiently.
no comment
no comment
no comment
The language is clear and the text is well structured.
The study is well designed, with good methodological quality and clear results. I have only minor suggestions:
- Line 102: Were the athletes in the same weight class? This is important in judo throwing techniques.
- Line 177-181: Did the authors test for multicollinearity in the data (multiple regression analysis)? Measures of VIF, correlation, and tolerance are fundamental, as it is normal for some variables to be correlated with each other.
- Line 213-216: I suggest that instead of showing the prediction equation (which is not useful), show the R2, adjusted R2, indicator (variables that entered into the model), standardized coefficients (β) and p in a table.
- Line 255-257: Our body is articulated, so the trunk and head play an important role in the osoto-gari technique, as their greater inclination allows the lower limb to reach a greater height and produce greater angular velocity and consequently greater angular momentum (lower moment of inertia), similar to the movement of a 'jackknife'. Please expand this discussion on angular momentum, moment of inertia and angular velocity. Perhaps, showing the equations to explain it.
All text and materials provided via this peer-review history page are made available under a Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.