While infill type and pile height can both affect shock absorption, the most significant element is infill depth.

Impact on Shock Absoption

Shock absorption chart
-- according to Dow research

General Characteristics Dow Products Qualities Results
Pile Height

Pile height alone has limited impact on shock absorption as it does not entail enough mass to absorb shock sufficiently.

However, pile height and yarn properties contribute to the shock absorption system components alongside with the infill material, the shock pad, the backing and the sub-floor design.

Your Dow product choice for yarn type will contribute to desired pile height.
Infill Type

Infill provides stability to the yarn and contributes to shock absorption and force reduction properties of the whole turf system. Infill material is usually a combination of sand and elastomeric granules, mainly available in two types: crosslinked rubber and thermoplastic elastomers. Newer elastomeric coated sand solutions combine these two options.

NORDEL™ EPDM, VERSIFY™ Plastomers & Elastomers, AFFINITY™ Polyolefin Plastomers Right density (cristallinity) and melt flow rate (MFR) reflecting the molecular weight (MW) Optimal energy absorption, very good wear resistance for long-term durability and sustainability
Infill Depth

There is a direct correlation between infill height and everything that is related to mass, including shock absorption; the greater the infill depth, the higher the shock absorption.

Additionally, the degree of flexibility and visco-elasticity of the product will also impact the shock absorption system characteristics.

Your Dow product choice for infill type will contribute to desired infill depth. Right density (cristallinity) and melt flow rate (MFR) reflecting the molecular weight (MW)
Less depth will be needed, as a flexible and visco-elastic product is able to absorb more shock than a stiff product