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J Clin Exp Res. 2014; 2(2): 129-132

Comparison of analgesic effect of interferential therapy and transcutaneous electrical nerve stimulation on pressure pain threshold on young healthy individuals

Vipra P. Dalal, Megha S. Sheth, Neeta J Vyas.

Objectives: The purpose of this study is to compare the analgesic effect of interferential therapy (IFT) and transcutaneous electrical nerve stimulation (TENS) on pain pressure threshold (PPT) in young healthy subjects. Materials and Methods: A comparative, crossover study involving 30 volunteers was conducted at Physiotherapy College. Inclusion criteria were healthy subjects, aged 18-25 years, taking no analgesic medication. Exclusion criteria were any painful musculoskeletal conditions, any contraindications to electrotherapy. IFT (Base-100 HZ, Sweep-0 HZ, 4PV90) and TENS (Frequency-100 HZ, Pulse duration-50microsecond) were given to the subjects using four electrodes placed covering the L1 to S2 areas for 15 minutes. PPT was taken from right erector spine muscle targeted as the central area of stimulation via mechanical algometer. Results: Data of 20 subjects were analyzed using SPSS 16 version. Paired t-test applied to see difference within the group and unpaired t-test applied to see difference between the groups. Mean difference is PPT scores in kgf were IFT (baseline=2.770.43, 15min=3.530.43, 60min=3.29042), TENS (baseline=2.720.43.15min=3.530.41, 60min=2.960.42). Difference between baseline and 15min (IFT=0.760.27, TENS=0.620.28, p=0.13). Difference between baseline and 60min (IFT=0.510.22, TENS=0.240.19, p

Key words: Analgesic effect, interferential therapy, pressure pain threshold, transcutaneous electrical nerve stimulation

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