Movements with greater trunk accelerations and their properties during badminton games

Abstract

This study aimed to elucidate the movements requiring greater trunk accelerations and its frequencies during badminton games, and compare the acceleration components among such movements. Trunk acceleration was measured using a triaxial accelerometer during badminton games. The moments that generated >4 G resultant acceleration were extracted, and movements consistent with the extracted moments were identified. We calculated the extracted movement ratio and frequency and compared the resultant, mediolateral, vertical and anteroposterior accelerations between the top five extracted movements. There were 1,342 movements that generated >4 G [mean, 7.72 (95% confidence interval, 7.31-8.14) cases/min]. The top five movements were lunging during underhand strokes with the dominant hand side leg, landing after overhand strokes on the dominant and non-dominant hand side leg, and cutting from a split step using the dominant and non-dominant hand side leg. Landing on the dominant hand side leg had a greater resultant acceleration than the other movements and had the greatest impact during the badminton game. Lunging during underhand strokes on the dominant hand side leg had greater mediolateral acceleration than the other movements. These results reflected the properties of badminton.

Biomechanics of lower limb in badminton lunge: a systematic scoping review

“…Moreover, Lam, Ding & Qu (2017) argued that an isolated lunge test using a controlled setting was far from the reality of interest in a competition. The relationship between isolated lunge, repeated lunge ( Lam, Ding & Qu, 2017 ), or uncontrolled lunge during a badminton game ( Nagano et al, 2020 ) required further investigations.…”

“…Lunge manoeuvres can be performed in five directions, including three forward directions (forehand, backhand, and in-front) and two backward directions (forehand and backhand). Almost all included articles examined lunge biomechanics in forward direction, while one did not specify the direction of lunge ( Nagano et al, 2020 ). Three included articles considered backward lunges, and six compared the movement mechanics among lunge directions.…”

“… Lam, Ding & Qu (2017) highlighted that athletes were always moving back and forth during a game, and considering a single isolated lunge may not be realistic, despite that there were challenges to define and segment phases and events of movement accurately. Nagano et al (2020) considered the more realistic aspect of the game. They extracted and classified the frequency of different movements in the game that included landing after an overhand stroke, lunging during an underhand stroke, cutting from a split step, take-off before the overhand stroke, pre-split steeping, split step, stopping, backstepping, and cutting.…”

“… Park et al (2017) investigated peak and changes in shoe bending and torsion angles between the forefoot and rearfoot regions, together with ankle RoM, to examine how forefoot bending stiffness of footwear would influence foot and ankle mechanics. Moreover, Nagano et al (2020) extracted and classified badminton movements when a resultant acceleration of more than four times of gravity was generated under the premise, resulting in injuries to trunk or body segments. In addition, Chen et al (2020) measured segmental and angular segmental deceleration as a sign of better performance.…”

The Applications of Landing Strategies in Badminton Footwork Training on a Backhand Side Lateral Jump Smash

“…Previous studies on the landing posture after performing lateral jumps at different angles have reported that the valgus angle at the knee joint varies with changes in the landing direction (Stephenson et al, 2017). Some studies have used motion analysis to assess the risk of lower limb injuries, and one particular study of badminton players placed inertial measurement unit sensors on players' trunk to assess the differences between various badminton actions and paces (Nagano et al, 2018). Another study used inertial measurement unit (IMU) and image analysis to examine the around-the-head stroke performed in the backcourt and determined that backhand strokes resulted in a higher risk of injury (Sasaki et al, 2018).…”