Effect of Inspiratory Muscle Trainer on Running Performance and Respiratory Muscle Strength in Athletes

Background: Athletes are trained for specific games and for specific muscle groups. In all the games respiratory muscles with proper strength are needed so as to provide better outcome. But as the peripheral muscles are trained the Respiratory muscles are not trained specifically in any of the athlete. The less trained Respiratory muscles can directly affect the output of the Athlete by activating Metaboreflex. This reflex is activated when the Respiratory muscles gets fatigued; in which the blood is pulled towards the fatigued Respiratory muscles; due to which the peripheral muscle gets less blood and oxygen to work longer; which results in reduced output. So as to improve overall output, along with specific muscles, the Respiratory muscles should also be trained. Aim: This study was designed to evaluate the effect of Inspiratory Muscle Trainer on Running Performance and Respiratory Muscle strength in Athletes. Materials and methods: An Interventional study was conducted on Athletes studying in a Physical Education college Gujarat. The subjects were selected according to inclusion criteria. The Pre-training outcome of PImax (Inspiratory Mouth Pressure); PEmax (Expiratory Mouth Pressure) and time taken for 30m sprint was taken. And then subjects were divided into two groups’ one training and other control. Group A: Training for Respiratory muscles by Inspiratory Muscle Training Device along with other regular physical activity. Group B: Not getting any additional training for Respiratory muscle other than regular physical activity. The training was given at 50% PImax for 15 min a day for 6 weeks. At the end of 6 weeks postdata of PImax PEmax and speed were collected. Agnihotri DS, Bhise AR, Patel SM. Effect of Inspiratory Muscle Trainer on Running Performance and Respiratory Muscle Strength in Athletes. IAIM, 2016; 3(8): 159-163. Page 160 Results: Data analysis was done using SPSS20 version. In Experimental group Inspiratory Mouth Pressure, Expiratory Mouth Pressure improved significantly (p<0.05) also time taken for completion of 30msprint reduced significantly. (p<0.05) Conclusion: The Inspiratory Muscle Trainer can be used to improve Inspiratory Mouth Pressure, Expiratory Mouth Pressure and Running Performance in Athletes.

Variáveis fisiológicas e neuromusculares associadas com a performance aeróbia em corredores de endurance: efeitos da distância da prova / Physiological and neuromuscular variables associated to aerobic performance in endurance runners: effects of the event distance

O objetivo deste estudo foi analisar a validade do consumo máximo de oxigênio (VO2max), velocidade associada ao VO2max (vVO2max), tempo de exaustão na vVO2max (Tlim), limiar anaeróbio (LAn), economia de corrida (EC) e força explosiva (FE) para predizer a performance aeróbia de corredores de endurance nas distâncias de 1.500m, 5.000m e 10.000m. Participaram deste estudo 11 corredores de endurance moderadamente treinados (28,36 ± 6,47 anos) que realizaram os seguintes testes: provas simuladas em uma pista de 400m em diferentes dias, nas distâncias de 10.000m, 5.000m e 1.500m; teste incremental máximo para determinar os índices VO2max, vVO2max, e LAn; um teste submáximo de carga constante para determinar a EC, seguido por um teste máximo também de carga constante a 100 por cento da vVO2max para determinar o Tlim; e um teste de salto vertical para determinar a FE. De acordo com a análise de regressão múltipla, a vVO2max utilizada de forma isolada explicou 57 por cento da variação de performance na prova de 1.500m. No entanto, quando o Tlim, a FE e a vVO2max foram analisados em conjunto, a explicação para a performance nessa prova foi de 88 por cento. Nos 5.000m, o Tlim, a vVO2max e o LAn responderam por 88 por cento da variação de performance (p < 0,05). Diferentemente, na prova de 10.000m, o LAn foi a única variável que apresentou capacidade de predição de performance. Em conclusão, a predição da performance aeróbia de corredores moderadamente treinados por meio de variáveis fisiológicas e neuromusculares é dependente da distância da prova (1.500m, 5.000m e 10.000m).

The objective of this study was to analyze the validity of maximal oxygen uptake (VO2max), velocity corresponding to the maximal oxygen uptake (vVO2max), time to exhaustion in the vVO2max (Texh), anaerobic threshold (AT), running economy (RE), and explosive strength (ES) to predict performance in 1.500m, 5,000m, and 10,000m running events. Eleven moderately trained endurance runners (28.36 ± 6.47 years) participated in this study and performed: 10.000m, 5.000m, and 1.500m time trials on a 400m track; a maximal incremental load test to determine the VO2max, vVO2max, and AT; a submaximal and maximal constant load test to determine RE and Texh, respectively; and a vertical jump test to determine ES. The vVO2max alone accounted for 57 percent of variance in the 1.500m running performance. However, when the Texh, ES, and vVO2max were analyzed together, they were able to explain 88 percent of the performance. In the 5.000m running trial, Texh, vVO2max, and vAT responded for 88 percent of the performance (p<0.05). Differently, in the 10.000m time trial, the vAT was the only variable able to predict performance. In conclusion, the prediction of aerobic running performance based on VO2max, vVO2max, Texh, AT, RE, and ES is dependent on the running distance (1.500m, 5.000m, and 10.000m).

RELATIONSHIPS BETWEEN RUNNING PERFORMANCES AND VO<SUB>2</SUB>MAX, LT, OR PERCENT FAT IN 11-12-YEAR OLD BOYS / 体力科学

The relationships between running performances (200 m running time and 5-min run) and VO<SUB>2</SUB>max, Lactate Threshold (LT), or percent fat were investigated on 11-12-year old boys. Subjects were 21 control boys (group C) and 21 soccer boys (group S) . Mean 200 m running time in group S was significantly better than that in group C. Mean distance of 5-min run in group S was significantly longer than that in group C. No significant difference was found between mean running speed of 5-min run and mean speed at exhaustion in LT experiment. In group C, 200 m running time correlated significantly with VO<SUB>2</SUB>max. In group S, faster runners showed higher peak post 200 m run lactate concentration. 5-min run correlated significantly with VO<SUB>2</SUB>max for group C, group S and all subjects combined. LT correlated significantly with 200 m running time and 5-min run. No significant relation was found between running petformances and percent fat. It is suggested that VO<SUB>2</SUB>max and LT determine, in part, boy's running performances, but percent fat do not.