Effects of two strength training programs on functional physical capacity and muscle activation in a group of older adults
DOI:
https://doi.org/10.47197/retos.v51.99901Keywords:
Older adults, functional capacity, strength, physical conditionAbstract
The purpose of this study was to identify the effects of two resistance strength training (RST) programs in two groups of adults aged 60 to 75 years. One group trained with a load of 70% of 1RM (G70%, n = 10); and another with a load of 40% of 1RM (G40%, n = 9). The RST lasted eight weeks and a frequency of 3 sessions per week, lasting one hour. Maximum strength (1RM), mean propulsive velocity (MPV), functional capacity, and neuromuscular activation were evaluated before and after RST. The results show a better post-intervention performance in G40%, in functional capacity: agility (13.8% vs. 8.38%), 2-minute march (17.5% vs. 11.7%), squats for 30 seconds (44.6% vs. 33.9%), gait speed (27.4% vs. 20.1%), maximum strength (1RM: 46.3% vs. 40.1%), MPV with 40% of 1RM (38.9% vs. 37.3%), MPV with 70% of 1RM (43.2% vs. 36.4%) and MPV with 1RM (92% vs. 62.1%). No statistically significant differences in neuromuscular activation for both groups. The present study suggests that strength training in a population of older adults performed at high speed is more efficient in variables such as functional capacity, maximum strength, speed of execution, and neuromuscular activation.
Key words: older adults, functional capacity, strength, physical condition
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