However, the contribution of gluteus maximus force production and neuromuscular activity to
knee valgus during normal movement remains unclear.
For example, tests are used for identifying the presence of
knee valgus during drop landings (Nyman & Armstrong, 2015),
knee valgus during the barbell back squat (Kushner et al. 2015; Snarr & McGinn, 2015), or lumbar rounding during the barbell back squat (Kushner et al. 2015; Snarr & McGinn, 2015).
There are some reports that increased adductor muscle activity may be related to the display of
knee valgus during certain movements, including bilateral squats (Padua et al. 2012) and unilateral squats (Mauntel et al. 2013).
Not exact matches
Is the client better able to prevent their
knee from collapsing inward (
valgus)
during a lunge (assessing
knee stability)?
In addition, there does not appear to be any relationship between gluteus medius muscle activity and
knee valgus)
during single - leg exercises (Hollman et al. 2009; Nguyen et al. 2011).
Moreover, Lloyd and Buchanan (2001) noted that the gracilis does possess a muscle moment arm that is supportive of
knee valgus moments
during knee extension movements.
However, there are some commonly - used movement tests using categorical measurements that are much less well - defined, such as for
knee valgus or lumbar rounding
during the back squat.
Of particular note is the trial by Lubahn et al. (2011), which reported that adding a lateromedial (outward) force
during the single - leg squat directed to increase
knee valgus actually decreases the muscle activity of the gluteus medius.
Because the glutes contract
during hip movement to prevent the
knees from caving in (
valgus collapse), weak glutes can lead to
knee pain caused by excessive stress in the patellofemoral region if this repetitive dysfunctional pattern occurs.
Tighten Your Buns: Glute Bridges or Hip Thrusts One of the most common issues people have with squatting is known as
valgus collapse, or the
knees collapsing inwards
during the «up» phase of the exercise.