Knee Joint Biomechanics in Physiological Conditions and How Pathologies Can Affect It: A Systematic Review

Table 9

Overview over the experimental results of knee power for stair ascent and stair descent.

Study	Subjects ( (m), (kg))	()	Type	I (W/kg)	J (W/kg)	K (W/kg)	L (W/kg)	Range (W/kg0
Riener et al. [24] and Joudzadeh et al. [25]	10 (, )		Ascent	2.322	0.071	0.647	-0.309	2.631
			Descent	0.256	-0.678	-0.429	-3.788	4.044
			Ascent	2.538	0.055	0.696	-0.312	2.850
			Descent	0.305	-1.029	-0.453	-4.141	4.446
			Ascent	2.887	0.049	0.811	-0.288	3.175
			Descent	-0.212	-1.255	-0.472	-4.843	4.631
Mcfadyen and Winter [142]	3 (—, —)		Ascent	2.742	-0.228	1.020	-0.739	3.481
			Descent	0.569	-3.621	-1.326	-5.485	6.054
Musselman [27]	17 (, )		Ascent	1.044	-0.223	0.447	-0.265	1.309
			Descent	0.037	-0.248	-0.558	-2.077	2.114

I: first peak knee generation power; J: first peak knee absorption power; K: second peak knee generation power; L: second peak knee absorption power.