Table 3.
Study | Intervention/control | Age [years (SD)] | Outcome parameters | Results |
---|---|---|---|---|
Lephart et al., 2005 | Plyometric (n = 14)/resistance training (n = 13) | I: 14.5 (1.3) C: 14.2 (1.3) | Jump-landing 3D biomechanics and hip and thigh EMG | Both training groups increased gluteus medius activity before and during landing |
Letafatkar et al., 2015 | Pertubation training (n = 15)/control (n = 14) | I and C: 24.3 (3.5) | Single leg drop landing EMG of quadriceps and hamstrings | Increased level of co-contraction between quadriceps and hamstrings in the intervention group after intervention |
Nagano et al., 2011 | Jump and balance training (n = 8)/no control group | I: 19.4 (0.7) | Single leg drop landing 3D biomechanics and quadriceps and hamstrings EMG | Intervention increased pre activity hamstring activation, but not H/Q-ratio |
Wilderman et al., 2009 | Agility training (n = 15)/control group (n = 15) | I: 21.1 (3.6) C: 21.1 (1.8) | Sidecutting 3D kinematics and quadriceps and hamstrings EMG | Intervention group increased medial hamstring activation during ground contact |
Zebis et al., 2008 | Balance+jump+landing (n = 20), compare control season vs. intervention season | I: 26 (3) | Sidecutting EMG of hip thigh and shank muscles | No change during control season but reduction in gluteus medialis pre activity and increase in medial hamstring activity following the intervention protocol |
Zebis et al., 2016 | Balance+jump+landing (n = 20)/control (n = 20) | I: 15.9 (0.4) C: 15.6 (0.5) | Sidecutting 3D biomechanics and EMG of quadriceps and hamstring | After intervention reduced VL-ST EMG difference was showed during the pre-landing phase for the intervention group |
Only muscle activation study data are summarized.
VM, m.vastus medialis; VL, m.vastus lateralis; ST, m.semitendinosus.