REHABILITATION OF NEUROMUSCULAR FUNCTION BY PHYSICAL EXERCISE

In long-term sports, especially in explosive sports such as accelerated starting, athletes are prone to rupture the anterior cruciate ligament (ACL). It is the ultimate goal of ACL reconstruction for athletes to restore the stability (static and dynamic) and mechanical structure of the knee joint through reconstruction surgery.

Object

This article uses ACL reconstruction to repair patients’ ACL and explores the effect of athletes’ nerve recovery after sports.

Methods

We collected 35 ACL reconstruction athletes and randomly divided them into two groups (experimental group, 18; control group, 17). After reconstruction, the athletes in the experimental group were treated with sports rehabilitation.

Results

The experimental and control groups had great differences in knee joint exercise indexes and nerve function recovery.

Conclusion

Sports rehabilitation training can effectively improve the nerve function of the knee joint after ACL reconstruction. Level of evidence II; Therapeutic studies - investigation of treatment results.

Physical exercise; Anterior cruciate ligament; Rehabilitation

Basic Information	The experimental group (n=18)	Control group (n=17)	t	P
Age (year old)	20.3±6.6	21.1±7.9	-0.072	0.738
Height (cm)	176.2±11.0	175.9±10.6	0.086	0.683
Weight (kg)	70.3±9.6	71.0±8.2	-0.093	0.537
Training years (years)	11.2±3.6	10.6±4.2	0.102	0.505
Absolute force (Nm)
Bend	80.6±15.5	81.5±16.9	-0.113	0.46
Stretch	102.6±20.7	101.8±19.7	0.082	0.693
Explosive power (Nm)
Bend	79.3±16.4	79.6±15.8	-0.07	0.741
Stretch	92.5±19.0	97.6±19.6	-1.316	0.067
Muscular endurance flexion	0.53±0.11	0.54±0.14	-0.066	0.828
Stretch	0.64±0.13	0.63±0.15	0.069	0.772
Position sense
30°	4.45±1.46	4.53±1.58	-0.11	0.452
60°	5.43±1.76	5.32±1.16	1.007	0.103

Index	Mode	The experimental group (n=18)
Index	Mode	Week 0	Week 8
Absolute force (Nm)	Bend	80.6±15.5	106.1±24.2
Absolute force (Nm)	stretch	102.6±20.7	141.5±26.4
Explosive power (Nm)	Bend	79.3±16.4	96.2±19.3
Explosive power (Nm)	stretch	92.5±19.0	127.3±24.1
Muscle endurance	Bend	0.53±0.11	0.65±0.13
Muscle endurance	stretch	0.64±0.13	0.78±0.12
Position sense	30°	4.45±1.46	2.48±1.02
Position sense	60°	5.43±1.76	4.13±1.66
Index	mode	Control group (n=17)
Index	mode	Week 0	Week 8
Absolute force (Nm)	Bend	81.5±16.9	88.9±18.7
Absolute force (Nm)	stretch	101.8±19.7	120.2±17.8
Explosive power (Nm)	Bend	79.6±15.8	80.4±16.4
Explosive power (Nm)	stretch	97.6±19.6	106.9±26.2
Muscle endurance	Bend	0.54±0.14	0.61±0.19
Muscle endurance	stretch	0.63±0.15	0.66±0.18
Position sense	30°	4.53±1.58	4.23±1.70
Position sense	60°	5.32±1.16	5.10±1.30
Index	mode	Comparison between groups in week 8
Index	mode	t	P
Absolute force (Nm)	Bend	11.62	<0.001
Absolute force (Nm)	stretch	2.334	0.012
Explosive power (Nm)	Bend	11.556	<0.001
Explosive power (Nm)	stretch	10.077	0.003
Muscle endurance	Bend	1.621	0.056
Muscle endurance	stretch	-2.339	0.01
Position sense	30°	23.11	<0.001
Position sense	60°	-2.339	0.01
Index	mode	Percentage change after eight weeks (%)
Index	mode	Test group	Control group
Absolute force (Nm)	Bend	31.6	9.1
Absolute force (Nm)	stretch	37.6	18.1
Explosive power (Nm)	Bend	37.9	1
Explosive power (Nm)	stretch	22.6	9.5
Muscle endurance	Bend	21	12.9
Muscle endurance	stretch	21.9	4.8
Position sense	30°	-44.3	-6.6
Position sense	60°	-23.9	-4.1

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[1] Correspondence: Qiang Li, College of Physical Education, Henan Finance University, Zhengzhou 450046, China. liqiang@hafu.edu.cn