further. In an attempt to answer these questions, Froome promised to undergo independent physiological testing soon after finishing the Tour. The test, arranged by Froome himself, took place shortly before the start of the Vuelta, on 17 August 2015, in the GlaxoSmithKline Human Performance lab in London. Several tests were carried to determine his maximum sustainable power for 20–40 minutes (threshold power), level of maximum oxygen consumption (VO2 max) and his peak power. Froome's peak power was measured at 525 W; his peak 20–40-minute power, at 419 W, corresponds to 79.8 percent of the maximum. Given his weight of (of which 9.8% was body fat) at the time of test, this corresponds to figures of 7.51 and 5.98 W/kg respectively. His maximum oxygen uptake was measured at 84.6 ml/kg/min. At the time, he was reportedly almost heavier compared to his Tour weight of . Using this number, the VO2 max figure would translate to approximately 88.2 ml/kg/min. Froome also released results from a previous test, carried out in 2007 while being part of the UCI development programme. The 2007 test measured his peak power at 540 W, the threshold power at 420 W and the maximum oxygen uptake of 80.2 ml/kg/min, at a weight of . Career achievements Major results Source: 2005 1st Stage 2 Tour of Mauritius 2006 1st Overall Tour of Mauritius 1st Stages 2 & 3 2nd Anatomic Jock Race 2007 1st Overall Mi-Août en Bretagne 1st Stage 5 Giro delle Regioni 1st Stage 6 Tour of Japan 2nd Berg en Dale Classic 2nd Time trial, UCI B World Championships 3rd Road race, All-Africa Games 8th Tour du Doubs 2008 2nd Overall Giro del Capo 3rd Giro dell'Appennino 4th Overall Herald Sun Tour 6th Overall Volta ao Distrito de Santarém 2009 1st Stage 2 Giro del Capo 1st Anatomic Jock Race 4th Road race, National Road Championships 9th Gran Premio Nobili Rubinetterie 2010 2nd Time trial, National Road Championships 5th Time trial, Commonwealth Games 9th Overall Tour du Haut Var 2011 1st Overall Vuelta a España 1st Combination classification 1st Stage 17 3rd Overall Tour of Beijing 2012 2nd Overall Tour de France 1st Stage 7 Held after Stage 7 3rd Time trial, Olympic Games 4th Overall Vuelta a España 4th Overall Critérium du Dauphiné 7th UCI World Tour 2013 1st Overall Tour de France 1st Stages 8, 15 & 17 (ITT) Held after Stages 8 &