Sentences with phrase «amplitudes during squatting»

The researchers suggested that these findings imply that hip flexor length affects gluteus maximus and hamstrings EMG amplitudes during squatting motions, at least during eccentric muscle actions.

In respect of lumbar posture, Vakos et al. (1994) compared the hamstrings EMG amplitude during squats with kyphotic and lordotic postures and found no differences between the two variations.

Not exact matches

Studies have investigated the effects of stance width and weight belt usage during back squats on adductor magnus EMG amplitude (Zink et al. 2001; Paoli et al 2009).

In contrast, Youdas et al. (2007) did not find any significant differences in hamstrings EMG amplitude during 1 - leg squats performed on stable and labile surfaces.

Similarly, Ninos et al. (1997) found no changes in EMG amplitude with knee flexion angles during the squat, while changes in quadriceps EMG amplitude were noted.

Similarly, Shields et al. (2005) also reported that although hamstrings EMG amplitude increased with increasing load during 1 - leg squats, the quadriceps displayed much greater EMG amplitude than the hamstrings at all loads, with the quadriceps - to - hamstrings ratio of EMG amplitude ranging from 2.3 — 3.0.

For example, Youdas et al. (2007) found that males but not females displayed greater hamstrings EMG amplitude than quadriceps EMG amplitude during the split squat.

Studies have investigated the effects of stance width and bar speed during back squats as well as squeezing a medicine ball between the legs during leg presses on adductor longus EMG amplitude (McCaw & Melrose, 1999; Manabe et al. 2007; Peng et al. 2013).

Some research has reported that hamstrings EMG amplitude does not increase to the same extent as the EMG amplitude of other lower body muscles during back squats with increasing load.

For example, Zeller et al. (2003) investigated leg muscle EMG amplitude during the 1 - leg squat and found that hamstrings EMG amplitude was low, particularly in comparison with quadriceps EMG amplitude.

Studies have found that gluteus maximus EMG amplitude increases during the back squat with both load (Savelberg et al. 2007; Li et al. 2013; Aspe and Swinton, 2014; Gomes et al. 2015; Giroux et al. 2015) and speed (Manabe et al. 2007).

Few studies have directly studied gluteus maximus EMG amplitude during the Smith machine squat.

Gluteus maximus EMG amplitude can be enhanced during lunges (and probably also split squats) by selecting the forward variation, using longer step lengths, and using elastic resistance to increase the difficulty at the top of the movement.

Although Kim et al. (2013a) found that gluteus maximus EMG amplitude was enhanced by instability during a prone hip extension performed with a foam roll, and Barton et al. (2014) found that gluteus maximus EMG amplitude was enhanced during single - leg squats with a Swiss ball, such potentially positive findings have not been observed by all researchers.

However, Struminger et al. (2013) explored the gluteus maximus EMG amplitude during a range of different lower body plyometrics exercises (180 degree jump, frontal plane hurdle hop, double leg sagittal plane hurdle hop, single leg sagittal plane hurdle hop, and split squat jump).