Table 5 Stride-to-stride regulation.

From: Recruit-aged adults may preferentially weight task goals over deleterious cost functions during short duration loaded and imposed gait tasks

Load	Locomotion	Variable	Portion	Total	Men	Women
BW	Running	Tangential α	Total	0.78 ± 0.12	0.77 ± 0.10	0.79 ± 0.14
			Beginning	0.77 ± 0.15	0.72 ± 0.11	0.81 ± 0.18
			End	0.69 ± 0.17	0.63 ± 0.13	0.75 ± 0.19
		Perpendicular α	Total	0.65 ± 0.09	0.66 ± 0.09	0.65 ± 0.09
			Beginning	0.61 ± 0.10	0.60 ± 0.10	0.62 ± 0.10
			End	0.56 ± 0.14	0.54 ± 0.15	0.58 ± 0.14
	Forced-Marching	Tangential α	Total	0.85 ± 0.10	0.86 ± 0.12	0.84 ± 0.09
			Beginning	0.82 ± 0.12	0.82 ± 0.13	0.83 ± 0.11
			End	0.73 ± 0.12	0.67 ± 0.12	0.80 ± 0.10
		Perpendicular α	Total	0.60 ± 0.12	0.61 ± 0.11	0.59 ± 0.13
			Beginning	0.56 ± 0.12	0.56 ± 0.14	0.56 ± 0.10
			End	0.55 ± 0.10	0.55 ± 0.10	0.55 ± 0.12
+ 45%BW	Running	Tangential α	Total	0.82 ± 0.10	0.81 ± 0.11	0.82 ± 0.08
			Beginning	0.77 ± 0.17	0.78 ± 0.15	0.76 ± 0.20
			End	0.69 ± 0.13	0.71 ± 0.16	0.66 ± 0.09
		Perpendicular α	Total	0.63 ± 0.10	0.64 ± 0.13	0.62 ± 0.06
			Beginning	0.55 ± 0.18	0.53 ± 0.16	0.58 ± 0.21
			End	0.51 ± 0.17	0.54 ± 0.21	0.47 ± 0.11
	Forced-Marching	Tangential α	Total	0.86 ± 0.11	0.80 ± 0.08	0.92 ± 0.12
			Beginning	0.86 ± 0.16	0.86 ± 0.11	0.87 ± 0.21
			End	0.77 ± 0.19	0.74 ± 0.10	0.80 ± 0.26
		Perpendicular α	Total	0.58 ± 0.10	0.53 ± 0.09	0.64 ± 0.08
			Beginning	0.57 ± 0.10	0.56 ± 0.10	0.59 ± 0.10
			End	0.50 ± 0.12	0.45 ± 0.07	0.56 ± 0.13
+ 55%BW	Running	Tangential α	Total	0.83 ± 0.11	0.79 ± 0.09	0.88 ± 0.12
			Beginning	0.77 ± 0.14	0.74 ± 0.11	0.80 ± 0.18
			End	0.68 ± 0.20	0.67 ± 0.17	0.69 ± 0.24
		Perpendicular α	Total	0.61 ± 0.10	0.59 ± 0.10	0.62 ± 0.10
			Beginning	0.51 ± 0.15	0.51 ± 0.13	0.51 ± 0.18
			End	0.46 ± 0.16	0.49 ± 0.12	0.43 ± 0.19
	Forced-Marching	Tangential α	Total	0.87 ± 0.13	0.78 ± 0.10	0.95 ± 0.09
			Beginning	0.86 ± 0.16	0.82 ± 0.18	0.89 ± 0.14
			End	0.77 ± 0.17	0.73 ± 0.18	0.82 ± 0.14
		Perpendicular α	Total	0.54 ± 0.10	0.51 ± 0.11	0.57 ± 0.09
			Beginning	0.53 ± 0.11	0.55 ± 0.15	0.51 ± 0.06
			End	0.47 ± 0.12	0.51 ± 0.13	0.43 ± 0.08

mean ± standard deviation.
α = alpha coefficient derived from detrended fluctuation analysis;
BW = Body weight (no load); + 45%BW = An additional 45% of BW; + 55%BW = An additional 55% of BW;
Total = Entire trial; Beginning = First 30% of the trial only; End = Last 30% of the trial only;
α = 0.5 represents stochastic (random) control; α < 0.5 represents anti-persistent regulation (strict control); α > 0.5 represents persistent behavior (looser/weaker control); α ≥ 1.5 represents over regularity (no control).

Back to article page

Table 5 Stride-to-stride regulation.

Search

Quick links