Table 2. Mean (±Standard deviation) for hips and shoulder angular rotation values during one-(1BH) and two-handed (2BH) backhand strokes from the initiation of forward swing to ball contact (acceleration phase).
Authors |
Sample |
Stroke direction |
Shoulders rotation (°) |
Hips rotation (°) |
1 BH |
2 BH |
1 BH |
2 BH |
Stepien et al. (2011) |
9 male experienced coaches |
DL |
30.1 (10.6) |
71.1 (13.8)## |
19.0 (6.9) |
47.4 (10.3)## |
Akutagawa & Kojima (2005) |
14 male Colleg Players |
DL |
NR |
|
31.4 (8.3) |
54.4 (9.0)# |
Fanchiang et al. (2013) |
5 male Colleg Players |
DL |
51.0 (16.0) |
85.0 (12.0)# |
26.0 (22.0) |
59.0 (12.0)# |
Fanchiang et al. (2013) |
5 female Colleg Players |
DL |
59.0 (27.0) |
85.0 (13.0)# |
33.0 (24.0) |
43.0 (14.0)# |
Reid & Elliott (2002) |
18 male Colleg Players |
CC |
≈ 51.4* |
≈ 65.3 * |
≈ 35.9 * |
≈ 36.1* |
|
|
DL |
≈ 50.3 * |
≈ 64 * |
≈ 30.1* |
≈ 36.6* |
Colleg = collegiate; CC = cross-court; DL= down the line (laboratory condition); NR=not reported.* = values from average differences between data noted at the end of the backswing and at impact.