We found good reliability but practitioners are encouraged to adopt a conservative approach when using these measures to monitor physical performance changes change over time.

A great team effort from the InSPIRe group👊🏻

@altmetric.com

- Therefore, I offer guidelines for coaches on how they may up/down-regulate mechanical load exposure for individuals to deliver maturity considerate approaches to preserve athlete health

- Developing players may/may not be able to handle such mechanical loads at particular periods of their biological development as a result of skeletal fragility and relative strength deficits

- The modern game requires higher intensities and frequencies of accels and decels - therefore, the area per player has shifted to smaller areas in training

- We see a higher volume of low-moderate accels, decels and changes of direction leading to high mechanical loads

This study has been swirling in my head for some time, so I was keen to conceptualise this through a narrative review of evidence.

The key aspects of the review are:
- SSG are used extensively in development environments as they offer high fidelity for players/coaches