1 Subjects: “...muscle activation patterns...”

2 Subjects: “...muscle activity...”

3 Subjects: “...parasternal intercostal muscles...”

4 Subjects: “...McKibben muscle...”

5 Subjects: “...muscle stimulation...”

6 Subjects: “...triceps surae muscle...”

7 Subjects: “...muscle activation...”

8 Subjects: “...muscles...”

9 Subjects: “...muscle soreness...”

10 Subjects: “...trunk muscles...”

11 Subjects: “...force-varying muscle contraction...”

12 Subjects: “...force-varying muscle contraction...”

13 Subjects: “...force-varying muscle contraction...”

14 Subjects: “...quantitative muscle ultrasound...”

15 Subjects: “...muscle strength...”

16 Subjects: “...muscle activities...”

17 Subjects: “...muscle activities...”

18 Subjects: “...muscle activities...”