Table 3. Summary of the purposes, participants’ characteristics, evaluated swimming phases and tests and score of quality assessment of each study. 4 categories of the study’s purpose were summarised and most were aimed to investigate the muscle activation pattern during FC swim.
Author (Year) Purpose Participant characteristics Phases Test Quality
Rouard et al (1995) To document the co-contraction patterns of elbow and shoulder joints during rapid maximal-effort movement against drag 9M: Competitive
FC specialists
Age: 17.3±2.59
Swimming 4 X 100m FC 71%
Caty et al (2007) To evaluate the wrist fixation and the recruitment of the forearm muscles during insweep and outsweep phases 7M: International Level
Age: 22.6±2.7
Swimming 25m semi-tethered swim 79%
Stirn et al (2011) To evaluate the peripheral muscle fatigue during 100m maximum effort FC swim in upper trunk and arm muscles by means of amplitude and frequency parameters 11M: Competitive
Non-FC specialists
Age: 22.0±2.9
Swimming 100m All-out FC 82%
Ikuta et al (2012) To evaluate changes in muscle activity associated with physiological fatigue and decreases SV during 200m FC swim
To examine the relationship between decreased SV and changes in kinematics or EMG between individuals
20M: University Team
Age: 20.5±1.0
Swimming 200m FC
(4 x 50m Swim)
79%
Figueiredo et al (2013) To investigate and report kinematic and electromyographic changes during a maximal 200m FC. 10M: International Level
Age: 21.26±2.4
Swimming 200m FC 84%
Figueiredo et al (2013) To investigate how muscle fatigue evolves in 200m FC swim by means of an amplitude and frequency analysis 10M: Competitive
FC specialists
Age: 21.6±2.4
Swimming 200m FC 79%
Lauer et al (2013) To apply coactivation index to prime movers of the elbow in FC & examine how it affected by stroke phases 10M: International Level
Age: 20.8±2.3
Swimming 200m FC 79%
Lomax et al (2014) To examine whether or not IMF-induced fatigue in the LD and PM muscles, and its impact on stroke kinematics during sprint swimming 6M, 2F: Collegiate Level
Age: 22.0±5.5 (overall)
Swimming 20s Arms Only FC 71%
Martens et al (2015a) To assess intra-individual variability of the EMG signal of bilaterally measured RA and DM;
To describe the muscle activity by MVIC, in relation to upper limb stroke movements
15M: Competitive
Age: 21.26±2.24
Swimming 25m FC 87%
Pereira et al (2015) To describe and compare the kinematic, kinetic and electromyographic characteristics of 4 FC flip turns 9M, 8F: National Level
Age: 19.5±2.6 (M); 16.0±2.8 (F)
Turn Flip Turn: 4 Variants 82%
Kobayashi et al (2016) To clarify muscle activation pattern between agonist and antagonist muscles in trunk, thigh and lower legs during underwater dolphin kick 13F: Collegiate Level
Age: 20.2±1.7
Start & Turn 15m Dolphin Kick 68%
Matsuda et al (2016) To compare muscle activation and co-contraction levels of rectus femoris and biceps femoris during flutter kicking between swimmers 10 Competitive, 10 Recreational
Age: 20.0±0.9 (Competitive)
Swimming Flutter Kick 76%
Martens et al (2016) To investigate inter-individual variability in FC swimming;
To determine if any EMG sub patterns using key features in a cluster analysis
15M: Competitive
Age: 21.26±2.24
Swimming 25m FC 87%
Yamakawa et al (2017) To clarify the effects of increased kick frequency on Froude efficiency and muscular activation patterns in trunk, thigh, and leg during underwater dolphin kick;
To investigate the relationships between average swimming velocity or Froude efficiency and muscular activation pattern
8F: Competitive
Age: 20.9±1.9
Start & Turn 15m Dolphin Kick 79%
Unit - m: metre. Abbreviations - DM: Deltoideus Medialis; EMG: Electromyography; F: Female swimmers; FC: Front crawl/Freestyle; IMF: Inspiratory Muscle Fatigue; M: Male swimmers; MVIC: Maximum Isometric Voluntary Contraction; N/A: Not applicable, PM: Pectoralis Major; RA: Rectus Abdominis; SV: Swimming Velocity