Low-Load Blood Flow Restriction Squat as Conditioning Activity Within a Contrast Training Sequence in High-Level Preadolescent Trampoline Gymnasts

• DOI: 10.3389/fphys.2022.852693
• Publication Date: 2022-06-13T05:33:21Z
• Authors: Shengtao Yang; Peng Zhang; Marta Sevilla-San...; Dong Zhou; Jie Cao; Jiajian He; Binghong Gao; Eduardo Carballeira
• Keywords: Squat; Vertical jump

To investigate the effects of implementing low-load blood flow restriction exercises (LL-BFRE) instead high-load (HL-RE) in a contrast training program on strength and power performance high-level young gymnasts. Fifteen pre-pubescent trampoline gymnasts (national level, Tanner Stage II, intermediate experience training) were divided into two groups to complete same structure ten-week differing only configuration first resistance exercise sequence. The LL-BFRE group (n = 7, four girls, 13.9 ± 0.4 y) performed with (20%-30% 1RM, perceived pressure 7 scale from 0 10). HL-RE 8, 13.8 0.5 trained sequence moderate-to-high load (60%-85% 1RM). Before after period, isometric mid-thigh pull (IMTP), squat jump (SJ), counter movement (CMJ), drop-jump (DJ) evaluate effect intervention capacities as primary outcomes. Changes participants' anthropometric measures, muscle mass, left right thigh girth, IMTP relative bodyweight (IMTP-R), eccentric utilization ratio (EUR), reactive index (RSI) assessed secondary There was no significant interaction (p > 0.05) between x time any outcome, although SJ EUR showed trend 0.06 p 0.065, respectively). an overall < all variables (CMJ, SJ, EUR, DJ, RSI, IMTP, IMTP-R). mass (MM) [β 0.57 kg, 95% CI (0.15; 0.98), t13 2.67, 0.019], revealing that participants increased their (6.6 3.1%) compared (3.6 2.0%). Anthropometric did not present or effect. However, there 0.05). Implementing place conditioning activity might be equally effective improving lower-body preadolescent