#Squat rest time professional

It was reported that a deep squat can be a screening test to assess bilateral symmetrical mobility of the hip, knee, and ankles (Cook et al., 2014 Kritz et al., 2009). Previous studies investigated the passive and active ROM of lower limbs and correlated it with the depth or the kinematics of the squat (Drinkwater et al., 2012 Kim et al., 2015). However, no standardized measures have been universally recognized, and terminology can differ among researchers (Schoenfeld, 2010). Thus, squat depth can be defined using the knee flexion angle (Bryanton et al., 2012) or the descent expressed as percentage of leg length (Bagwell et al., 2016 Kim et al., 2015).

Although movement is always three dimensional, squatting involves mainly motion in the sagittal plane. They demand different power and force and cannot be used interchangeably in weight training (Drinkwater et al., 2012 Kitamura et al., 2019 MartГnez-Cava et al., 2019).ДЄ squat requires mobility of the lower limb joints and the trunk.

#Squat rest time professional

A full-range-of -motion (ROM) squat and a squat with limited depth are both common exercises of professional and recreational athletes. One of the variables influencing muscular effort during squatting is depth (Bryanton et al., 2012). They have aroused great interest among researchers in recent years (Lee et al., 2015 Zawadka et al., 2018). Factors affecting squatting techniques are considered crucial in avoiding overuse or injury. Due to its multi-joint character, squatting seems to be an evaluation tool in motor control assessment (Gawda et al., 2019). It is one of the most important elements in building leg strength. Squatting is widely used in physical therapy and sport training as a closed-kinematic chain exercise involving all lower limb joints and many muscles.

This suggests that pelvis and ankle timing can be important to keeping balance during squatting and can lead to achieving the desired depth. Pelvis and ankle timing was negatively correlated with the squat depth (r s = -0.64, p < 0.001 and r s = -0.29, p = 0.02, respectively). Maximal ankle dorsiflexion and pelvis anterior tilt were reached earlier than the maximal angles of knee, hip and spine during squatting. The squat depth was related to lumbar, hip and knee motion in females and to all kinematics parameters in males. The knee ROM contributed most significantly, from all joints to squatting depth in both females and males (r = 0.92, p < 0.001). The ROM of ankle, knee, hip, pelvis and spine in the sagittal plane and the normalized time when the maximum joint angles occurred during the descent were analyzed to investigate the relationship between them and the squat depth in males and females. The time for the descent phase of squatting was normalized from 0% (initial position, start of movement) to 100% (squat position-stop of movement). Kinematic data were obtained using the optical motion capture system. They were instructed to perform a bodyweight squat to the maximal depth position. Sixty participants (20 females and 40 males) took part in this study. The aim of this study was to analyze the relationship of range of motion (ROM) in the sagittal plane and timing parameters during a bodyweight squat to the depth of the squat.