EVALUATION OF BLOOD OXYGEN SATURATION OF HIGH JUMPERS BASED ON ISOKINETIC TEST

An isokinetic test refers to the test of the force of a muscle or muscle group during centripetal and centrifugal movements at a constant speed in the whole range of joint motion by means of a isokinetic force tester.

Objective:

To explore the application of the knee centripetal flexor and extensor muscle groups in the blood oxygen saturation of high jumpers.

Methods:

Eighteen teenage female high jumper athletes above level 2 in a city sports school were selected. Their ages was 16.89±1.02 years old; height, 168.31±6.32cm; weight, 55.36±6.75kg.

Results:

At 60° S and 120° S test speed, the peak moment of the extensor muscle group on the same side of the knee was significantly greater than that of the flexor muscle group (P<0.05), while at 240° S test speed, it was the opposite. There was a significant difference in the peak moment of the flexor muscle group on the left and right side of the knee (P<0.01).

Conclusions:

The function of the dynamic muscle strength test system is one of the methods of studying the human muscle function. and can be used to test and evaluate the general strength of athletes. Level of evidence II; Therapeutic studies - investigation of treatment results.

Keywords:
Athletes; Muscle strength; Exercise test

The angular velocity(°s)	The left side			The right side
The angular velocity(°s)	60°	120°	240°	60°	120°	240°
The flexor peak moment(N.m)	11.33±30.74	126.67±25.69	115.00±37.15	125.44±26.82^ P<0.01	105.44±22.24^ P<0.01	95.22±33.4^ P<0.01
Flexor versus peak moment(N.m kg)	2.00±0.50	2.30±0.42	2.09±0.79	2.28±0.76^ P<0.01	1.90±0.34^ P<0.01	1.74±0.70^ P<0.01
Extensor peak moment(N.m)	152.11±28.56	134.11±33.24	89.67±25.61	143.33±25.69	121.11±23.99^ P<0.01	87.89±27.29
Extensor to peak moment(N.m kg)	2.76±0.86	2.42±0.54	1.65±0.65	2.60±0.78	2.18±0.35^ P<0.01	1.61±0.73
Peak moment flexion and extension	0.72±0.16	0.94±0.23	1.28±0.22	0.87±0.21^ P<0.01	0.86±0.18^* * P<0.05,	1.08±0.17^* * P<0.05,

The angular velocity(°s)	The left side			The right side
The angular velocity(°s)	60°	120°	240°	60°	120°	240°
Maximum flexor power(W)	50.67±20.11	105.55±22.27	157.4±23.94	72.17±26.92**	99.61±23.30	154.44±21.04
Bend relative maximum power(W kg)	1.04±0.33	1.91±0.35	2.85±0.56	1.31±0.54*	1.08±0.36	2.79±0.53
Maximum power of extensor(W)	61.61±27.18	98.94±24.87	136.72±28.52	61.94±20.78	97.78±20.78	135.22±25.70
Extend relative maximum power(W kg)	1.11±0.51	1.79±0.52	2.48±0.72	1.12±0.31	1.76±0.60	2.46±0.62
Maximum power flexion and extension	0.93±0.48	1.16±0.35	1.22±0.36	1.43±0.46*	1.12±0.37	1.22±0.36

The angular velocity(°s)	The left side			The right side
The angular velocity(°s)	60°	120°	240°	60°	120°	240°
Flexor peak torque Angle(°)	75.06±11.68	87.97±9.07	93.38±6.08	79.97±11.51	89.91±12.31	91.33±14.13
Peak torque time of flexor muscles(s)	0.65±0.36	0.30±0.16	0.21±0.06	0.79±0.45	0.30±0.11	0.23±0.05
Extensor peak torque Angle(°)	77.4±9.70	72.27±8.47	66.54±14.59	181.09±11.81	76.88±12.43	72.32±13.21
Extensor peak torque time(s)	1.23±0.32	0.62±0.16	0.33±0.11	1.13±0.40	0.56±0.13	0.31±0.09

Sociedade Brasileira de Medicina do Exercício e do Esporte Av. Brigadeiro Luís Antônio, 278, 6º and., 01318-901 São Paulo SP, Tel.: +55 11 3106-7544, Fax: +55 11 3106-8611 - São Paulo - SP - Brazil
E-mail: atharbme@uol.com.br

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[1] Correspondence Qiang Yao, Nanjing, China, 211100. yaoqiangyh@163.com