This model may still be available on clearance. But we've reviewed a newer version since we published this.Weight 391gEvaluation One of Nike’s main men didn’t want us to see the R4. “They’ll only criticise it because it’s different,” he told his

. And – given the shoe’s clumpy look – faster, smooth running is surprisingly easy.On a purely visual level, the main difference between the Shox D and R4 is the removal of the zipped shroud over the laces. The shoe now looks far more runner – rather than street

-suited to bigger runners. It’s also moderately heavy, though not as heavy as the Shox R4. The ‘no’ is in that, while Nike focuses on the ultra-long-lasting, springy rearfoot cushioning of Shox, Adidas emphasises the guidance of the foot through a stable gait cycle

(£100); New Balance 1220 (£100); Nike Shox R4 (£130)

MODELSCUSHIONEDAir International Triax |Air Max |Air Presto |Shox R4STABILITYAir Kantara |Air Structure TriaxMOTION CONTROLAir DurhamPERFORMANCE TRAININGAir SkylonOFF-ROADAir Crested Butte |Air Storm PegasusRACINGAir Streak Vapor

Air Kantara (£90); Mizuno Wave Creation (£90); Nike Shox R4 (£130)

followed the protocol of the American research very closely. The original compared chocolate milk to fluid replacement drink Gatorade and also Endurox R4, a carbohydrate replacement drink. In the British study a particular type of chocolate milk, Mars

|Shox R4REEBOKFusion C |Fusion V |Icon 3 DMX 10 |Miramar 2 DMX 6 |Sky DMX LiteSAUCONYGRID Jazz GTO |GRID Shadow |Jazz 6000

:23, AndyR, 4:24, MissCass, 4:24, Jane Eastham, 4:27, Catherine Rowe, 4:29, Catherine Halford, 4:31, Paulmyfinger, 4:40, Jane-O, 4:42, Mandy Kennett, 4:43, Roy Grew, 4:45, Yellow Ribbon, 4:47, KateV, 4:47, Paul Archibald, 4:51, Sharon Foster, 4:51, Caroline

, 4:37, CHARLESY.HO, 4:37, CaroleR, 4:37, Helen O'Rourke, 4:38, Chris Monk, 4:38, Mark Gotts, 4:40, Julie Moseley, 4:41, Mightyfish, 4:42, jci, 4:42, Jules, 4:42, Little Running Kitty, 4:43, Mark Smith, 4:43, Ian Bailey, 4:43, Powder Hedgehog, 4