Flexibility is an important component of physical fitness. However, to date, there is no comparative study between men and women concerning the influence of resistance training (RT) on flexibility.
OBJECTIVE:
To analyze the effect of RT on flexibility in young adult men and women.
METHODS:
Twenty-eight men and 30 women underwent progressive RT for 16 weeks, 3 times per week. Anthropometric and flexibility measurements were performed at pre-training, mid-training, and post-training. The flexibility measurements were obtained using a fleximeter.
RESULTS:
There was no significant sex by time interaction(P> 0.05) for any outcomes. Both sexes increased flexibility similarly from baseline to mid-training in shoulder extension (10.4-11.1%) and lateral trunk inclination (2.4-3.4%). Shoulder flexion increased at same magnitude in men and women from baseline to post-training (1.3-2.8%). Hip flexion and trunk flexion scores increased from baseline to mid-training(hip flexion = 3.7-3.9%, trunk flexion = 2.7%), however, a decrease was observed from mid- to post-training (hip flexion = -2.4 - -2.6%, trunk flexion = -1.4%) with values returning to baseline with no difference between men and women.
CONCLUSIONS
: The results suggest that regardless of sex, RT improves or at least preserves the flexibility of different joint movements in young adult men and women.
GarberCE, BlissmerB, DeschenesMR, FranklinBA, LamonteMJ, LeeIM, et al. American College of Sports Medicine position stand. Quantity and quality of exercise for developing and maintaining cardiorespiratory, musculoskeletal, and neuromotor fitness in apparently healthy adults: guidance for prescribing exercise. Med Sci Sports Exerc. 2011; 43(7): 1334-1359. doi: 10.1249/MSS.0b013e318213fefb.
2.
American College of Sports Medicine position stand. Progression models in resistance training for healthy adults. Med Sci Sports Exerc. 2009; 41(3): 687-708. doi: 10.1249/MSS.0b013e3181915670.
3.
CarneiroNH, RibeiroAS, NascimentoMA, GobboLA, SchoenfeldBJ, Achour JuniorA, et al. Effects of different resistance training frequencies on flexibility in older women. Clin Interv Aging. 2015; 10: 531-538. doi: 10.2147/CIA.S77433.
4.
FatourosIG, KambasA, KatrabasasI, LeontsiniD, ChatzinikolaouA, JamurtasAZ, et al. Resistance training and detraining effects on flexibility performance in the elderly are intensity-dependent. J Strength Cond Res. 2006; 20(3): 634-642. doi: 10.1519/r-17615.1.
5.
FatourosIG, TaxildarisK, TokmakidisSP, KalapotharakosV, AggelousisN, AthanasopoulosS, et al. The effects of strength training, cardiovascular training and their combination on flexibility of inactive older adults. Int J Sports Med. 2002; 23(2): 112-119. doi: 10.1055/s-2002-20130.
6.
KimE, DearA, FergusonSL, SeoD, BembenMG. Effects of 4 weeks of traditional resistance training vs. superslow strength training on early phase adaptations in strength, flexibility, and aerobic capacity in college-aged women. J Strength Cond Res. 2011; 25(11): 3006-3013. doi: 10.1519/JSC.0b013e318212e3a2.
7.
LeiteT, de Souza TeixeiraA, SaavedraF, LeiteRD, RheaMR, SimaoR. Influence of strength and flexibility training, combined or isolated, on strength and flexibility gains. J Strength Cond Res. 2015; 29(4): 1083-1088. doi: 10.1519/jsc.0000000000000719.
8.
MortonSK, WhiteheadJR, BrinkertRH, CaineDJ. Resistance training vs. static stretching: effects on flexibility and strength. J Strength Cond Res. 2011; 25(12): 3391-3398. doi: 10.1519/JSC.0b013e31821624aa.
9.
SantosE, RheaMR, SimaoR, DiasI, de SallesBF, NovaesJ, et al. Influence of moderately intense strength training on flexibility in sedentary young women. J Strength Cond Res. 2010; 24(11): 3144-3149. doi: 10.1519/JSC.0b013e3181e38027.
10.
SaraivaAR, ReisVM, CostaPB, BentesCM, CostaESGV, NovaesJS. Chronic effects of different resistance training exercise orders on flexibility in elite judo athletes. J Hum Kinet. 2014; 40: 129-137. doi: 10.2478/hukin-2014-0015.
11.
SimaoR, LemosA, SallesB, LeiteT, OliveiraE, RheaM, et al. The influence of strength, flexibility, and simultaneous training on flexibility and strength gains. J Strength Cond Res. 2011; 25(5): 1333-1338. doi: 10.1519/JSC.0b013e3181da85bf.
12.
DistefanoLJ, DistefanoMJ, FrankBS, ClarkMA, PaduaDA. Comparison of integrated and isolated training on performance measures and neuromuscular control. J Strength Cond Res. 2013; 27(4): 1083-1090. doi: 10.1519/JSC.0b013e318280d40b.
13.
JuniorRS, LeiteT, ReisVM. Influence of the number of sets at a strength training in the flexibility gains. J Hum Kinet. 2011; 29A: 47-52. doi: 10.2478/v10078-011-0058-1.
14.
ZavanelaPM, CrewtherBT, LodoL, FlorindoAA, MiyabaraEH, AokiMS. Health and fitness benefits of a resistance training intervention performed in the workplace. J Strength Cond Res. 2012; 26(3): 811-817. doi: 10.1519/JSC.0b013e318225ff4d.
15.
MonteiroWD, SimaoR, PolitoMD, SantanaCA, ChavesRB, BezerraE, et al. Influence of strength training on adult women's flexibility. J Strength Cond Res. 2008; 22(3): 672-677. doi: 10.1519/JSC.0b013e31816a5d45.
16.
NobregaAC, PaulaKC, CarvalhoAC. Interaction between resistance training and flexibility training in healthy young adults. J Strength Cond Res. 2005; 19(4): 842-846.
17.
HogeKM, RyanED, CostaPB, HerdaTJ, WalterAA, StoutJR, et al. Gender differences in musculotendinous stiffness and range of motion after an acute bout of stretching. J Strength Cond Res. 2010; 24(10): 2618-2626. doi: 10.1519/JSC.0b013e3181e73974.
18.
LeeRC, WangZ, HeoM, RossR, JanssenI, HeymsfieldSB. Total-body skeletal muscle mass: development and cross-validation of anthropometric prediction models. Am J Clin Nutr. 2000; 72(3): 796-803.
19.
GobboLA, Ritti-DiasRM, AvelarA, SilvaAM, Coelho-e-SilvaMJ, CyrinoES. Changes in skeletal muscle mass assessed by anthropometric equations after resistance training. Int J Sports Med. 2013; 34(1): 28-33. doi: 10.1055/s-0032-1316312.
20.
Achour-JúniorA. Evaluating the flexibility: flexímeter. Londrina: Midiograf; 1997.
21.
RibeiroAS, AvelarA, SchoenfeldBJ, FleckSJ, SouzaMF, PadilhaCS, et al. Analysis of the training load during a hypertrophy-type resistance training programme in men and women. Eur J Sport Sci. 2015; 15(4): 256-264. doi: 10.1080/17461391.2014.940559.
22.
CyrinoES, OliveiraAR, LeiteJC, PortoDB, DiasRMR, SegantinAQ, et al. Flexibility behavior after 10 weeks of resistance training. Braz J Sports Med. 2004; 10(4): 233-237.
23.
JohnsRJ, WrightV. Relative importance of various tissues in joint stiffness. J Appl Physiol. 1962; 17: 824-828.
24.
CorreiaMA, MenêsesAL, LimaAHRA, CavalcantiBR, Ritti-DiasRM. Effect of strength training on flexibility: a systematic review. Braz J of Phisical Act Health. 2014; 19(1): 3-11. doi: 10.12820/rbafs.v19n1p3.
25.
DeschenesMR, KraemerWJ. Performance and physiologic adaptations to resistance training. Am J Phys Med Rehabil. 2002; 81(11 Suppl): 3-16. doi: 10.1097/01.PHM.0000029722.06777.E9.
26.
KraemerWJ, RatamessNA. Fundamentals of resistance training: progression and exercise prescription. Med Sci Sports Exerc. 2004; 36(4): 674-688.
27.
NewtonRU, KraemerWJ. Developing explosive muscular power: implications for a mixed methods training strategy. J Strength Cond. 1994; 16: 20-31.
28.
BeedleB, JesseeC, StoneMH. Flexibility characteristics among athletes who weight train. J Appl Sport Sci Res. 1991; 5(3): 150-154.
