Basics skills of badminton forehand and backhand serve, rebounds are defensive shots, and smash is considered an attacking shot (Creado, 2018). Along with grip strength, anaerobic power, endurance, and muscular strength are associated with the performance of badminton players. A forceful smash with higher speed makes the opponent mistake which creates a chance of an easy point (Edwards, 1997). Agility is one of the most important qualities in badminton players to keep one's balance while moving quickly in all directions of a badminton court (Ozmen & Aydogmus, 2016). Elite female badminton players reported less body fat and higher body mass than the lower-ranked female players (Munir et al., 2019). Athletes who have impressive height, weight, girths, lengths, and breadth tend to perform better in racket games (Shahida et al., 2015). A solid balance and stability during badminton service assist players to control and respond well to the opponent's shots (Singh & Mishra, 2020). Female badminton players have an advantage in competition due to their flexibility which increases their range of body movements (Lu et al., 2022). Hence, novice female badminton players can improve their balance, muscular strength, and endurance through regular training (McGuigan et al., 2012). As with all other aspects, the grip plays a significant role in the performance of elite badminton (Jaworski et al., 2023). It is the dominant hand that grips the racket, the thumb on the broader end of the handle, and fingers curled around the other, and the palm must be pointing upwards (Hung et al., 2020). The feet should be shoulder-width apart, and the player's knees should be slightly bent as she prepares to hit the shuttlecock (Malwanage et al., 2022). The backswing starts when the player rotates their elbow and wrist to move the racket head rearward. Pivoting on the non-dominant foot's heel allows the body to turn in all directions of the court (Lam et al., 2020). So, clearing the shuttlecock from one end of the court to the other requires a lot of leg and core power which gives you a chance to regain control of the game (Gumantan et al., 2021). Badminton may be categorized as an active strength activity (Middleton et al., 2016).

The player must have enough power to send the shuttlecock flying to the next court with pinpoint accuracy (Ahmed et al., 2011). By bending the knees ever-so-slightly, the athlete's weight must be distributed evenly between both feet (Weng, 2014). Specific training may stimulate muscles to develop stronger to bear the shift of weight while moving (Irawan, 2017). Athletes in every sport follow plyometric training, which consists of explosive bursts of movement, to improve their performance (Chu, 1986). The first phase of a plyometric workout is a quick and unusual muscular expansion, and the second phase is a rapid and unusual muscle contraction (Johnson et al., 2011). More force is generated after the concentric phase of muscle contraction in response to the shot of smashing (Heang et al., 2012). It's possible that eccentric loading is caused by rapid muscular stretching and shortening which increase the strength of the lower body muscles (Swanik et al., 2002). Plyometric training may improve badminton players' physical appearance. Previous studies revealed that regular training helps women badminton players' physical strength (Patterson et al., 2016). This experimental research aimed to investigate the impact of plyometric exercising on the badminton performance of female athletes (Chandra et al., 2023). According to my knowledge, not nearly enough research has been undertaken to analyze this question (Markovic et al., 2010). Through extensive literature study, it has been found that lack of research in Pakistan that investigates the effect of plyometric training on female badminton athletes. Therefore, this study may assist the female athletes the sports training education as well as talent identification of female badminton athletes in Pakistan.

Participants

A purposive sampling technique was adopted and an experimental research design with pre- and post-data measurements was adapted. The participants (n = 40) were female (19.23 ± 23.18 years) and were split into an experimental group and a control group. A cooperation contract was obtained from all female badminton athletes. A briefing was addressed to all members to inform the objectives of this research. Permission and ethical approval were obtained from the research committee of the university.

Instrument and Procedure of Data Collection

The anthropometrics obtained inside the indoor hall were divided into numerous areas such as body marking, skinfolds, body mass, stature, lengths, breadth, and girths (Gulati et al., 2021). Skinfold was evaluated through a Harpenden caliper with a 0.1 milli meter reading model (British indication, UK) utilized by (Ekinci et al., 2015). The line that runs along the axilla of the iliac crest is where the skinfold caliper was horizontally applied to the ilium, vertically for supraspinal, and vertically to the frontal thigh (Pastuszak et al., 2019). The abdomen skinfold was acquired from five cm away from the belly button. The skinfold caliper was used to hold the designated point using the left thumb and finger and the jaw (Demura & Sato, 2007). The left thumb and finger were used to grab the upper central indicated spot on the thigh; if this proved too challenging, another person was asked to assist by holding the leg from the inferior side. The caliper was held at eye level (Arrese & Ostariz, 2006) A caliper was used to measure the subject's medial calf from the muscles (Moore et al., 2008).

Body weight was determined using a computerized balance system made by Seiko of Tokyo, Japan. They were also told to always keep their heads up and their eyes forward 0.1kg was chosen as the minimal reading model. The height was measured from the stadiometer's base to the top of the head. Players were instructed to remove their footwear before standing in a diamond formation with their feet together, arms at their sides, and heels, buttocks, and upper back touching the wall. The individual was told to stand with their heels together, their backs on a line with the stadiometer's vertical bar, their heads up, and their arms pointing downward (Cinthuja et al., 2015).

The X-axis measured the distance in front of the player's face from the head to the impact of the shuttle. The X-axis horizontal linear velocity of the left and right segments and shuttle were determined. The velocity of the shuttle just before it crashed. The angle between the left and right ankle joints was measured from the knee. The ankle joint to knee vector and knee hips intersection were used to calculate right and left knee joint angles. The hip-to-shoulder vector and the shoulder-to-elbow joint interact to create the right and left shoulder angles. The angular measurements of upper body joints would be full in extension at one hundred eighty degrees to zero 0 degrees.

Reliability of the Anthropometric and Kinematics Variables

The technique was adopted to estimate the correctness of the apparatus and researcher. The kinematics of the badminton video were digitized and re-digitized to find the reliability of video analysis (Jacob et al., 2016), as guided (Kwan et al., 2010).

Statistical Analysis

The anthropometric and kinematics data were analyzed by using different statistical methods such as mean and standard deviation. An ANOVA (One-way analysis of variance) was repeated to compare the measurements of the experimental and control groups. Analysis of variation by factors Linear and angular kinematics of the services where similar statistical approaches were utilized to analyze popular and flop services (Ozmen & Aydogmus, 2017). The significance of the differences between the groups was examined using Tukey's post hoc test. Following the guidelines for repeated measures, we ensured that our data satisfied the conditions of normality, homogeneity of variance, and multicollinearity (Winter, 2009). The study participants' badminton performance, as well as their agility and lower-body power, were significantly improved by the plyometric exercise. The significant value was adjusted as P < 0.05 by using SPSS software for statistical analysis.

Skinfold Measure of Experimental and Control Groups of Female Badminton Players of The Islamia University of Bahawalpur

The table showed no significant differences were reported among groups in pre-post measurements of both groups except the supraspinal skinfold F (0.03) = P < 0.03. There was a significant difference in the supraspinal skinfold of the experimental before the start of training and after training measurements.

Circumferences of Body Segments of Experimental & Control Groups Female badminton Athletes

Figure 2 depicts a significant contrast in both the quantity of wrist girth F (0.16) = P < 0.00 and calf girth F(0.16) = P < 0.00. Tukey post hoc showed there was a significant difference in wrist girth and calf girth before the start of training and after training measurements of female badminton girls.

Length Measurement Experimental and Control Groups of Female Badminton Girls Athletes

Figure 03 showed no substantial deviation in the group in pre and post-measurements in all segmental lengths.

Breadth Measurements Experimental Control Groups of Badminton Female Athletes

The table showed no significant difference between groups comparison of pre and post-data of the experimental and control group in the measurement of shoulder breadth F(1.09)=P<0.30.

Physical fitness measures of experimental badminton how female athletes, control group athlete

Figure 05 did not show any substantial distinction in groups in pre and post-facts of physical fitness.

Performance Data Experimental and Control Groups of Female Badminton Players

Figure 06 showed substantial variations in both groups in pre-post statistics as in toe-to-toe gap stance F (6.19) = P< 0.02. Tukey post hoc showed there was a significant difference in toe-to-toe distance stance pre and post-data the plyometric adopted group increased their stance toe-toe gap.

Shuttle Speed of Experimental of Badminton Girls Athletics and Control Girls Athletes

Figure 07 showed substantial distinctions in both groups at pre- and post-statistics as the height of shuttle F (4.12) = P<0.05. The following players of plyometric training were better in shuttle height than not following the training group of girls' badminton athletes.

The basic reason to investigate the differences between the two groups regarding anthropometric measurements. The fat was lesser in the plyometric training follower female players than non-followers because it may decrease after 8 weeks of polymetric training. The results of the present research were favored by past research (Chen et al., 2019; Chatterjee & Banerjee, 2021). The arm girth was lesser in the plyometric training follower female players than in non-followers. The current study supports the previous research (Zhu et al., 2020) Chen et al., 2019). The upper arm length measurement was lesser in the plyometric training follower female players than non-followers as supports the previous study (Saha et al., 2017) Singh et al., 2017; (Zhu et al., 2020) find a significant decrease in measurement in lower leg length. The shoulder breath measurement was less as supported by past research (Lin et al., 2020).

The hand grip strength was increased in the plyometric training follower female players than non-followers female badminton athletes as confirmed by past research (Chiu et al., 2020; Wu et al., 2022). The experimental group had increased flexibility in physical fitness measures than the control group. excessive flexibility in the lower limbs may lead to decreased power production and a decrease in jump performance in badminton female players. It was observed significant performance and the number of forehand serves performed by female badminton players (Hung et al., 2020; Mocanu et al., 2023).

The current study supports the previous study (Rozikovich, 2022) A stance with a narrower toe-to-toe distance can contribute to improved agility and faster lateral movement, both of which are significant abilities in the sport of badminton. In another study (King et al., 2020) smaller elbow angle at the point impact and a lower racket head speed generate power and accuracy in the service (Rusdiana et al., 2020). The right and left knee angles (Cui et al., 2022; Ahmed & Ghai, 2020) find a negative relationship between knee angle and the correlation between knee flexion velocity in badminton players. The toe-to-toe distance backswing, right and left elbow angle backswing, and right and left knee angle backswing impact the higher velocity of the shuttlecock and improve stroke accuracy. The current study supports the previous study (Ramasamy, 2021) finds a lower velocity of the shuttlecock and less improved stroke accuracy in badminton players. Another study (Geng, 2021) finds that lower ability power and reduced accuracy in kinematics follow through in badminton female players. The distance, height, and time of forehand services a player’s ability to cover distance quickly and jump to hit the shuttle at a height can also better performance. The current study supports the previous study (Cui et al., 2022). Another study (Shen et al., 2019) finds the unable to accurately jump to hit the shuttle in forehand services in female badminton players.

The experimental player's segment lengths and segment widths were much greater than the control group players. Adolescence is a time of rapid growth, both in terms of length and width. Since they weighed more and were more robustly built, the experimental players had greater hand grip strength. During the stance, backswing, shuttle connect, and follow-through, the kinematics of the forehand services of the plyometric training follower female players than non-followers were equated via the measurement of four linear displacements, eleven angular locations, two temporal positions, and thirteen linear velocities. Female player due to greater abduction of the left and right shoulders during contact. The experimental player also performed better than the normative sample when it came to left-angle extension. The shuttle's speed is increased by flexing the elbows during the rear lift and then extending them during the forward swing. The pull of the left hand is associated with flexion similar arm’s elbow, and the pushing of the right hand is associated with flexion of its elbow.

It is demonstrated that plyometric drills increase the implementation of badminton girls’ athletes. It improves the following capacities vertical hop, quickness, and return time of badminton girls’ athletes. Further, the drills increase the coordination and performance of athletes.

The plyometric drill begins with necessary drills and

increases steadily with time. Plyometric training should incorporate a category of drills that improve muscle strength and skill accuracy. Teachers, athletes, and badminton are properly trained which can assist players in proper guidance which improves performance and reduces the chances of injuries. Frequently examining the performance also helps to check the effectiveness of the training on players' performance.