The Effects of a Cycling Warm-up Including High-Intensity Heavy-Resistance Conditioning Contractions on Subsequent 4-km Time Trial Performance

Chorley, A and Lamb, KL. The effects of a cycling warm-up including high-intensity heavy-resistance conditioning contractions on subsequent 4-km time trial performance. J Strength Cond Res 33(1): 57–65, 2019—Previous exercise has been shown to improve subsequent performance through different mechanisms. Sport-specific conditioning contractions can be used to exploit the “post-activation potentiation” (PAP) phenomenon to enhance performance although this has rarely been investigated in short endurance events. The aim of this study was to compare a cycling warm-up with PAP-inducing conditioning contractions (CW) with a moderate-intensity warm-up (MW) on performance and physiological outcomes of a 4-km time trial. Ten well-trained male endurance cyclists ( JOURNAL/jscr/04.02/00124278-201901000-00007/math_7MM1/v/2018-12-18T073638Z/r/image-tiff max 65.3 ± 5.6 ml·kg−1·min−1) performed two 4-km cycling time trials after a 5-minute recovery after a warm-up at 60% of JOURNAL/jscr/04.02/00124278-201901000-00007/math_7MM2/v/2018-12-18T073638Z/r/image-tiff max for 6.5 minutes (MW), and a warm-up with conditioning contractions (CW) consisting of 5 minutes at 60% of JOURNAL/jscr/04.02/00124278-201901000-00007/math_7MM3/v/2018-12-18T073638Z/r/image-tiff max then 3 × 10-second at 70% of peak power interspersed with a 30-second recovery. Blood lactate concentrations were measured before and after time trial. Expired gases were analyzed along with time, power output (PO...
Source: Journal of Strength and Conditioning Research - Category: Sports Medicine Tags: Original Research Source Type: research