Training intensity distribution and performance of a recreational male endurance runner. A case report

Abstract

[Abstract]: The polarized training intensity distribution model (PTM) has demonstrated to achieve larger improvements than lactate threshold model (LTM) in elite and well trained endurance athletes. However, there is a lack of knowledge about the effectivity of PTM with novice recreational runners. This research aimed to compare the impact of LTM vs PTM on a novice recreational runner’s performance. The athlete (age 32 y, body mass 73 kg, height 179 cm, basal HR 43 bpm, Σ6 skinfolds 51.6 mm) trained two consecutive seasons following a LTM and a PTM (~63%/32%/5% vs ~83%/14%/3% for zones 1, 2 and 3, respectively). In the 6th week of each season, a maximal test was performed to determine the physiologic thresholds and the maximum aerobic speed (MAS). During the intervention, training intensity was daily controlled based on HR. A half marathon race was performed at the end of each season to evaluate running performance. Training load was quantified based on TRIMPs model and the rate of perceived exertion (RPE) was recorded after each training session. Half marathon performance improved after the PTM season. Weekly TRIMPs were significantly higher during the 1st season. Training time and % of training time in zones 1 and 2 were significantly different between seasons. No differences were found between seasons for the weekly training time, nor for the RPE. PTM leads to a greater performance in a novice recreational runner. Nevertheless, a minimum training background and training time availability could be necessary to successfully apply this model in novice endurance athletes.