Preprint reviews by Heinrich Mallison

Subject-specific body segment parameter estimation using 3D photogrammetry with multiple cameras

Kathrin E Peyer, Mark Morris, William I Sellers

Review posted on 24th November 2014

Basic reporting

all fine

Experimental design

overall, all fine. However, I have marked a few places in the MS where the authors could, maybe even should, go into more details (maybe in the form of an appendix) so that using their method becomes easier for others.

Validity of the findings

I didn't check every individual number. That said, overall everything looks fine. Also, the authors are appropriately cautious and detail clearly what their results are versus conclusions and speculation.

I would like to see two or three extreme data points added - a very obese person or a child. Not a must, but it would go a long way to distinguish this study further from typical regression-based approaches, as it would highlight the strengths very well (assuming it works).

Comments for the author

There are a few spelling etc. issues, please fix.

Otherwise, a very good paper.
As I commented in the MS PDF, there are a few things I would like to see added or detailed better - not a must, though!

Sorry I took the full ten days for this! I had other reviews with short deadlines in parallel, otherwise this could have been done in one day.

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Quantifying the effect of intervertebral cartilage on neutral posture in the necks of sauropod dinosaurs

Review posted on 20th November 2014

Basic reporting

Basics are fine

Experimental design

is fine.

I wish we could avoid the handwaving about the triangle being almost right-angled, but as practically nobody ever measures the necessary distances, and everyone measures what Taylor uses, I think it is best to simply live with the tiny inaccuracy.

Validity of the findings

The validity of the findings is limited by an omission in a previous publication that this MS is an add-on and follow-up to (Taylor and Wedel 2013), which can't be helped.

Comments for the author

I remarked on various issues in the MS; nothing major.

In sum, this should have been in Taylor and Wedel 2013; it is worth publishing without much fuss.

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