| Study | Handgrip measurement | Position | Hand | Handgrip strength results | RT group compared to control group | |
| Aragão-Santos et al. (2020) | Not clearly reported | Sitting position at a 90˚ elbow flexion position | Left Right | EBFT: ↔ TSBFT: ↑ CON: ↓ No significant between-group differences. | - | ↔ ↔
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| Bårdstu et al. (2020) | Handheld dynamometer (Baseline® Hydraulic Hand Dynamometer, Elmsford, NY, USA) | Not clearly reported | Preferred arm | RT: ↔ CON: ↔ No significant between-group differences. | - | ↔ |
| Bezerra et al. (2018) | Hand dynamometer (Saehan Corporation®, 973, Yangdeok-Dong, Masan, Korea) | Sitting position at a 90˚ elbow flexion position | Left Right | MJ: ↑ MJ+SJ: ↑ CON: ↔ No significant group effect. No significant group × time interaction. | - | ↔ ↔ |
| Bunout et al. (2004) | Hand grip dynamometer (Therapeutic Instruments, Clifton NJ, USA) | Not clearly reported | Left Right | Right hand: NE: ↑ NN (CON): ↔ No significant between-group differences. | Left hand: NE: ↑ NN (CON): ↔ No significant between-group differences. | ↔↔ |
| Bunout et al. (2005) | Hand grip dynamometer (Therapeutic Instruments, Clifton NJ, USA) | Not clearly reported | Dominant | RT: ↔ CON: ↔ No significant between-group differences. | - | ↔ |
| Campa et al. (2021) | Dynamometer (Takei Scientific Instruments Co., Niigata, Japan) | Sitting position at a 90˚ elbow flexion position | Dominant | ST: ↑ TT: ↔ CON: ↓ Significant group × time interaction. | - | ↑ ↔ |
| Campa et al. (2018) | Dynamometer (Takei K.K. 5001, Takei Scientific Instruments Ltd., Niigata, Japan) | Sitting position at a 90˚ elbow flexion position | Dominant | ST: ↑ CON: ↓ Significant group by time interaction. | - | ? |
| Chupel et al. (2017) | Dynamometer (Lafayette, 78010, Indiana, USA) | Standing position with the elbow at the side of the body | Left Right | RT: ↑ CON: ↔ Significant difference between groups. | - | ↑ |
| de Vreede et al. (2005) | Handgrip dynamometer (Takei Kiki Kogyo 5101, Tokyo, Japan) | Not clearly reported | Left Right | RT: ↔ FT: ↔ CON: ↔ No significant between-group differences. | - | ↔ ↔ |
| Gylling et al. (2020) | SAEHAN DHD-1 Digital Hand Dynamometer | Not clearly reported | Not clearly reported | Heavy RT: ↔ Moderate RT: ↔ CON: ↔ No significant group × time interaction. | - | ↔ ↔ |
| Pereira et al. (2012) | Hand dynamometer (Lafayette Instrument, Lafayette, IN) | Sitting position at a 90˚ elbow flexion position | Dominant Non-dominant | Dominant hand: RT: ↑ CON: ↔ No significant between-group differences. | Non-dominant hand: RT: ↑ CON: ↔ Significant between-group differences. | ↔↑ |
| Rhodes et al. (2000) | Hand dynamometer | Not clearly reported | Dominant | RT: ↔ CON: ↔ No significant between-group differences. | - | ↔ |
| Richardson et al. (2019) | Digital strain-gauge dynamometer (Takei TKK 5401, Takei Scientific Instruments, Tokyo, Japan) | Not clearly reported | Dominant Non-dominant | Dominant hand: HVLL1: ↔ HVLL2: ↔ LVHL1: ↔ LVHL2: ↔ CON: ↔ No significant between-group differences. | Non-dominant hand: HVLL1: ↔ HVLL2: ↔ LVHL1: ↔ LVHL2: ↑ CON: ↔ Significant difference between LVHL2 and CON. | ↔↔ ↔↔ ↔↔ ↔↑ |
| Rogers et al. (2002) | Handgrip dynamometer (Jamar, Inc.) | Not clearly reported | Not clearly reported | RT: ↑ CON: ↔ Between group statistics were not clearly reported. | - | ? |
| Skelton et al. (1995) | Not clearly reported | Not clearly reported | Left Right | RT: ↑ CON: ↔ Significant between-group differences. | - | ↑ |
| Thomas et al. (2008) | Grippit® dynamometer (AB Detector, Gothenburg, Sweden) | Sitting position at a 90˚ elbow flexion position | Left Right | Right hand RT: ↑ CON: ↔ Significant between-group differences. | Left hand RT: ↔ CON: ↔ No significant between-group differences | ↑↔ |
| Tieland et al. (2015) | Hydraulic hand dynamometer (Jamar, Jackson, MI, USA) | Sitting position with the arm in a 90˚ angle position | Dominant Non-dominant | Dominant hand RT: ↑ CON: ↑ Significant time effect. No significant group effect. No significant group × time interaction. | Non-dominant hand RT: ↑ CON: ↑ Significant time effect. No significant group effect. No significant group × time interaction. | ↔↔ |
| Tsuzuku et al. (2018) | Hand grip dynamometer (Grip-D; Takei Instruments, Niigata, Japan) | Standing position | Right | RT: ↔ CON: ↔ No significant between-group differences | - | ↔ |
| Vezzoli et al. (2019) | Dynamometer (JAMAR PLUS+, Sammors Preston, Rolyon, Bolingbrook, IL, USA) | Standing position, the upper limbs along the sides, and the legs slightly apart | Left Right | RT: ↔ CON: ↔ No significant between-group differences | - | ↔ |
| Wanderley et al. (2015) | Handgrip dynamometer (Takei, TKK 5101 Grip-D) | Held the dynamometer in the dominant hand with his/her arm by his/her side and had to squeeze using maximum force | Dominant | RT: ↔ CON: ↔ No significant group × time interaction. | - | ↔ |