Table 1 Means (standard deviations, SD) of the crossing speed, stride length, and toe-obstacle and heel-obstacle distances in the TCC and Control groups when crossing obstacles of different heights.

From: Effects of long-term Tai-Chi Chuan practice on whole-body balance control during obstacle-crossing in the elderly

 

Obstacle height (%LL)

Effects

10

20

30

Crossing speed (m/s)

TCC

0.70 (0.06)

0.66 (0.07)

0.62 (0.07)

ph = 0.01↓

Control

0.80 (0.14)

0.70 (0.12)

0.64 (0.11)

pg = 0.17

Leading stride length (% LL)

TCC

134.2 (8.0)

133.8 (8.4)

132.6 (8.3)

ph = 0.01↓

Control

139.5 (11.7)

136.4 (11.1)

134.9 (12.1)

pg = 0.33

Trailing stride length (% LL)

TCC

128.0 (7.7)

128.6 (8.9)

129.2 (10.7)

ph = 0.31

Control

141.7 (11.8)

139.1 (11.1)

137.3 (10.9)

pg = 0.01*

Toe-obstacle distance (% LL)

TCC

24.94 (4.8)

25.35 (4.8)

24.38 (5.1)

ph = 0.28

Control

24.94 (4.4)

24.60 (4.2)

24.24 (4.8)

pg = 0.86

Heel-obstacle distance (% LL)

TCC

17.33 (2.8)

16.43 (3.3)

15.59 (3.5)

ph = 0.01↓

Control

18.38 (5.1)

16.38 (3.7)

15.09 (4.5)

pg = 0.89

Leading-toe clearance (mm)

TCC

183.3 (23.4)

192.5 (24.5)

200.9 (19.1)

ph = 0.01↑

Control

147.8 (47.8)

169.0 (32.9)

183.8 (42.8)

pg = 0.04*

Trailing-toe clearance (mm)

TCC

173.2 (31.1)

181.1 (41.3)

182.9 (45.7)

ph = 0.33

Control

129.1 (45.6)

133.9 (51.9)

149.4 (55.3)

pg = 0.01*

  1. LL leg length, ph p-value for obstacle height, pg p-value for group
  2. *Significant difference between subject groups
  3. ↑Significant linearly increasing trend
  4. ↓Significant linearly decreasing trend