Enhancing Balance, Agility, and Strength in Amateur Badminton Players Using a Novel Badminton Specific Square-Stepping Exercise (Bs-SSE)

This study evaluates a novel badminton-specific Square-Stepping Exercise (bs-SSE) protocol developed for amateur badminton players. The intervention was designed to reflect the multidirectional footwork demands of badminton through a structured stepping programme performed on a 2.5 m × 1.0 m mat divided into 40 equal squares. The protocol incorporates forward, backward, lateral, and diagonal stepping patterns adapted from the original Square-Stepping Exercise model and modified to simulate badminton-specific movement sequences. The programme was developed as a practical sport-specific conditioning approach for amateur players who may not otherwise engage in structured supplementary training.

This is a quasi-experimental study conducted over 8 weeks with an intervention group and a control group. Participants in the intervention group complete the bs-SSE programme, while participants in the control group continue their usual activities without additional structured exercise. The intervention is delivered in a standardised format consisting of warm-up, exercise, and cool-down phases. The warm-up uses simple stepping tasks at light intensity, followed by a 30-minute main exercise phase at moderate intensity, and a cool-down at very light intensity. Exercise intensity is guided by percentage of age-predicted maximum heart rate, with the warm-up conducted at 57% to less than 64% HRmax, the main phase at 64% to less than 76% HRmax, and the cool-down below 57% HRmax.

The bs-SSE protocol uses progressive overload by increasing the complexity of stepping patterns over time. Participants perform sequenced multidirectional stepping tasks requiring repeated transitions, controlled foot placement, and lower-limb coordination. The protocol also includes perceptual-motor and cognitive components, as participants are required to observe, learn, recall, and reproduce specific stepping sequences. This integrated design was intended to reflect the coordination and movement control demands associated with badminton footwork. Study assessments are conducted at baseline, week 4, and week 8.

Prior to implementation, the bs-SSE protocol underwent expert content validation and demonstrated excellent content validity, with item-level and scale-level content validity indices of 1.00. The study was approved by the University Research Ethics Committee and is conducted in accordance with institutional ethical requirements and the Declaration of Helsinki. This study is intended to examine the feasibility and value of a structured badminton-specific stepping intervention as a practical training approach for amateur badminton players.

The improvement in dynamic balance and agility is particularly important for badminton performance and injury prevention. Badminton requires rapid multidirectional movement, lunging, recovery steps, and repeated changes in direction, all of which depend on good postural control and neuromuscular coordination. Poor balance and inadequate neuromuscular control increase the likelihood of lower limb injuries, particularly ankle sprains, which are common in badminton players. Therefore, the positive changes observed in the bs-SSE group suggest that the intervention may enhance both performance-related fitness and injury resistance.