Physiological, Spatiotemporal, Anthropometric, Training, and Performance Characteristics of a 75-Year-Old Multiple World Record Holder Middle-Distance Runner.

Abstract

This study assessed the cardiorespiratory capacity, anaerobic speed reserve, and anthropometric and spatiotemporal variables of a 75-year-old world-class middle-distance runner who previously obtained several European and world records in the age categories of 60-70years, achieved 13 European titles and 15 world champion titles, and also holds several European records for the 75-year-old category. Heart rate, oxygen uptake, carbon dioxide production, ventilation, step frequency, contact time, and velocity at maximal oxygen uptake (VO2max) were measured during treadmill running. Maximal sprinting speed was assessed during track sprinting and used to compute anaerobic speed reserve. Body fat percentage was assessed using air displacement plethysmography. Body fat percentage was 8.6%, VO2max was 50.5mL·kg-1·min-1, maximal ventilation was 141L·min-1, maximum heart rate was 164beats·min-1, maximum respiratory exchange ratio was 1.18, and velocity at VO2max was 16.7km·h-1. The average stride frequency and contact time during the last 30 seconds of the 4-minute run at 10km·h-1 were 171steps·min-1 and 241ms and 187steps·min-1 and 190ms in the last 40seconds at 17km·h-1, respectively. The anaerobic speed reserve was 11.4km·h-1, corresponding to an anaerobic speed reserve ratio of 1.68. This 75-year-old runner has an exceptionally high VO2max and anaerobic speed reserve ratio. In addition, his resilience to injuries, possibly due to a relatively high volume of easy runs, enabled him to sustain regular training since his 50s and achieve international performance in his age group.