Phase angle is moderately correlated with lower-body power and fitness capacity in junior Badminton players

Phase angle (PhA) is derived from bioimpedance analysis (BIA) and is widely used as an indicator of cellular health, cell membrane integrity, and cell function. Lower-body power and fitness capacity are of paramount importance in success in several sports, including badminton. This study aimed to evaluate the relationship between PhA and lower-body power and fitness capacity in 22 junior badminton players (14 males, 8 females, 17.7±1.4 years old). Bioelectrical impedance was used to assess body fat (BF), muscle mass (MM) and PhA. Countermovement jump test and Yo-yo intermittent test level 2 were used to evaluate lower-body power and fitness capacity, respectively. Pearson correlation and multiple regressions considering the effect of BF, MM, and age were used for statistical analysis. PhA exhibited a positive relationship with lower-body power (β = 0.48; P 0.24). PhA is associated with lower-body power and fitness capacity in junior badminton players. However, these relationships are influenced by MM, BF, and age co-variables.