The Reconstitution of W′ Depends on Both Work and Recovery Characteristics

Purpose This study aimed to investigate the effects of different work and recovery characteristics on the W' reconstitution and to test the predictive capabilities of the W'BAL model. Methods Eleven male participants (22±3 yr, 55±4 mL.min-1.kg-1) completed three to five constant work rate tests to determine CP and W'. Subsequently, subjects performed twelve experimental trials, each comprising two exhaustive constant work rate bouts (i.e., WB1 and WB2), interspersed by an active recovery interval. In each trial, work bout characteristics (P4 or P8, i.e., the work rate predicted to result in exhaustion in 4 and 8 min, respectively), recovery work rate (33% CP or 66% CP) and recovery duration (2, 4 or 6 min) were varied. Actual (W'ACT) and model-predicted (W'PRED) reconstitution of W' were calculated. Results After 2, 4 and 6 min recovery, W'ACT averaged 46±2.7%, 51.2±3.3% and 59.4±4.1%, respectively (P=0.003). W'ACT was 9.4% higher after recovery at 33% CP than at 66% CP (56.9±3.9% vs. 47.5±3.2%) (P=0.019). P4 exercise yielded a 11.3 % higher W'ACT than P8 exercise (57.8±3.9% vs. 46.5±2.7%) (P=0.001). W'ACT was higher than W'PRED in the conditions P4-2min (+29.7%), P4-4min (+18.4%) and P8-2min (+18%) (P

from Sports Medicine via xlomafota13 on Inoreader https://ift.tt/2ISA9to
via IFTTT